PhD Viva Flashcards
Practice for my PhD viva
Overview: What is the title of your PhD thesis?
Improving physical activity for people with physical disabilities: A mixed methods approach
Overview: What are the names of your PhD viva examiners?
Dr Emma Pullen (Internal) and Dr Jennifer Tomasone (External)
Overview: Summarise your thesis in a sentence?
My thesis looks at ways of improving physical activity for people with physical disabilities through the use of a novel health intervention such as mobile health (mHealth) solutions
Overview: How did you come up with the idea for this project?
I have always been interested in physical activity for people with disabilities. Based on my MSc dissertation, which explored the barriers and facilitators to physical activity for people with disabilities, I wanted to extend this type of work and find a solution to address this issue, which is how my PhD project came together.
Overview: Describe your thesis in brief?
The overall focus of my PhD is to understand how to increase physical activity in adults with physical disabilities.
Overview: Why did you choose this topic?
During my MSc my dissertation focused on the barriers and facilitators to physical activity for people with physical and sensory disabilities. As I was progressing onto a PhD, I wanted my PhD to address these barriers by developing an app. My PhD initially started with developing an intervention until Ali/Accessercise approached us where we ended up evaluating his intervention (or app).
Overview: Why is this topic important, and to whom is it relevant?
Our topic is important because people with disabilities are a physically inactive population, are at risk of numerous health complications and are not meeting recommended guidelines. Therefore, this population requires support and need interventions to be designed to overcome this challenge.
Overview: What are the key findings?
Chapters 2-5 have highlighted that mHealth is a potential and promising strategy to increase physical activity in marginalised populations, including adults with physical disabilities.
This mixed-methods thesis has provided a novel insight into ways of improving physical activity for adults with disabilities, an area which has been under researched.
Novel findings which have used the Accessercise have found to be positive. Overall, it is anticipated that the findings reported from this thesis will propose solid evidence base of the benefits of physical activity for adults with physical disabilities, and as a result influence the design, implementation and evaluation of future physical activity interventions that can lead to better QoL in this population.
Overview: What are your contributions to knowledge?
We evaluated a novel mHealth application, namely Accessercise which has yet to be evaluated.
Overview: What are some of the limitations of your thesis?
- The overall effectiveness of the Accessercise app was yet to be established. We were unable to evaluate and understand the intervention’s long term effects.
- The Accessercise app was under developed during the time that we evaluated it. Therefore, this may have impacted the findings that we obtained for the usability (Chapter 4) and our feasibility work (Chapter 5).
- The majority of outcomes employed within our research used self-reported outcomes via questionnaires, which are at risk of social desirability and recall bias.
- Recruiting difficulties - Most participants in our research were Male, White British, and were from the East Midlands areas.
Overview: What is the future of your research?
Some recommendations include:
- Further high quality RCTs, which include objective measures of physical activity, long-term follow-up and bigger sample sizes.
- A larger definitive trial is needed to assess the effectiveness of the Accessercise app in terms of increasing physical activity.
- To identify solutions to increase recruitment and retention of a diverse sample of adults with physical disabilities in mHealth interventions, that better reflects the population of the UK and internationally.
- To identify better solutions to improve access to mHealth interventions for people with disabilities and identify ways to overcome social exclusion, marginalisation, and disability stigma.
- To investigate whether delivering different physical activity interventions for manual wheelchair users with SCI via different modes of delivery (e.g., telephone, counselling, weekly video conferencing) can result in long term benefits.
Overview: What is the benefit of your research to society?
My research can benefit theory, practice and health-care professionals.
- My PhD can be encouraging for the community of people with physical disabilities, as the findings have indicated that Accessercise is feasible, adhered to, and was received positively among people with physical disabilities.
- The app may support people with disabilities in the community to overcome physical activity barriers and help them in addressing the low physical activity rates in adults with physical disabilities across the UK.
- Lastly, this research has shown the benefits of including people with disabilities in research and can help other researchers when designing and evaluating similar physical activity mHealth interventions for people with disabilities.
Overview: How are you going to make sure your research has an impact and how are you going to share it?
Some of the ways that I will ensure my research has impact is through the following:
- Academic publications (I will ensure that my work gets published, so that it’s readable to a wider audience e.g., researchers, app developers, lay audience).
- Present my research at academic conferences (e.g., Pint of Science, Loughborough Annual Conference), so that other researchers can build upon my work.
- Engaging with the public - Delivering presentation/talks about my work so that a lay audience can benefit.
Overview: What are your next steps?
Some recommendations include:
- Further high quality RCTs, which include objective measures of physical activity, long-term follow-up and bigger sample sizes.
- A larger definitive trial is needed to assess the effectiveness of the Accessercise app in terms of increasing physical activity.
- To identify solutions to increase recruitment and retention of a diverse sample of adults with physical disabilities in mHealth interventions, that better reflects the population of the UK and internationally.
- To identify better solutions to improve access to mHealth interventions for people with disabilities and identify ways to overcome social exclusion, marginalisation, and disability stigma.
- To investigate whether delivering different physical activity interventions for manual wheelchair users with SCI via different modes of delivery (e.g., telephone, counselling, weekly video conferencing) can result in long term benefits.
Research Questions: What are your main research questions and how did you select them?
My main research questions was to assess ways of ‘improving physical activity for adults with physical disabilities’ By following the Medical Research Council (MRC) framework, we undertook four important questions:
(1) A systematic review to assess the effectiveness of physical activity interventions for manual wheelchair users with spinal cord injury
(2) Assess the theoretical underpinning of a smartphone application (Accessercise) that aims to increase physical activity for adults with disabilities
(3) Assess the Usability of the Smartphone App
(4) Assess the feasibility of the Smartphone App
Chapter 1 (Introduction): What are models of Disability?
Models of Disability are frameworks that explain how disability is understood and addressed in society.
Chapter 1 (Introduction): What is the Medical Model of Disability?
The medical model views disability as an ‘individualised problem’ rather than a social or political problem, as it focuses on what is ‘wrong’ with the individual rather than what the person
‘needs’ to function correctly.
Chapter 1 (Introduction): What is the Social Model of Disability?
The model says that people are disabled by barriers in society, not by their impairment or difference.
Chapter 1 (Introduction): What are some of the limitations of the medical model?
Disability is mainly portrayed as a medical problem, with an individual with disabilities could feel stigmatised and of less importance within society in general.
Chapter 1 (Introduction): What are two of the most popular models of society?
The Medical and Social Models of Disabiltiy
Chapter 1 (Introduction): Why have you chosen the Behaviour Change Wheel (BCW)?
The Behavior Change Wheel is the most comprehensive and practically useful methodology available for developing behavior change interventions.
Chapter 1 (Introduction): Sum your PhD up in one sentence?
To understand how to increase physical activity for adults with physical disabilities.
General: What are the weakness of your work?
- When we evaluated the Accessercise app, it was mainly under development. Therefore, a good chunk of features of the app were not available, which may have impacted the findings of Studies 3 -4.
- The majority of participants we recruited were White British, male, had a Spinal Cord Injury and lived within the East Midlands area. So, therefore, our findings are not generalisable to the wider population.
- Effectiveness - Despite evaluating the Accessercise app, we were unable to test the overall effectiveness of the phyiscal acitvity app and whether the app can support people with disabilities in achieving long-term behaviour change.
- The majority of outcomes that were measured (e.g., Systematic Review and Feasibility Trial) used self-reported such as questionnaires/surveys.
General: What are you most proud of about your work?
I’m most proud about undertaking a systematic review with meta-analysis for the first time and understanding the different components that are involved in the process. In addition, working with people with various physical disabilities through testing their outcomes and seeing whether there were any improvements.
General: What is the next logical step(s) for this research?
Some recommendations include:
- Further high quality RCTs, which include objective measures of physical activity, long-term follow-up and bigger sample sizes.
- A larger definitive trial is needed to assess the effectiveness of the Accessercise app in terms of increasing physical activity.
- To identify solutions to increase recruitment and retention of a diverse sample of adults with physical disabilities in mHealth interventions, that better reflects the population of the UK and internationally.
- To identify better solutions to improve access to mHealth interventions for people with disabilities and identify ways to overcome social exclusion, marginalisation, and disability stigma.
- To investigate whether delivering different physical activity interventions for manual wheelchair users with SCI via different modes of delivery (e.g., telephone, counselling, weekly video conferencing) can result in long term benefits.
General: What was the toughest part of your PhD work and how did you overcome it?
TBD
General: How can physicians use your results to help patients?
Whilst healthcare professionals (e.g., Doctors, Nurses, Physios) have limited involvement in physical activity promotion due to a lack of knowledge, confidence and time), the findings reported in my thesis can be used as guidance within healthcare professionals practice. For instance, healthcare professionals working in physical activity for people with disabilities may use these findings to help people with disabilities make more sustained changes to their physical activity behaviour using mHealth interventions.
General: Why did you choose to do a feasibility study?
Based on the MRC Framework for designing and evaluating interventions, we followed step 2 and undertook a feasibility study.
General: Can you explain what you have done in your thesis and what is the most exciting part?
My main focus of my PhD was to understand how to increase physical activity in adults with physical disabilities. Specific aims of my PhD were the following:
- Undertook a systematic review assessing the effectiveness of physical activity interventions for manual wheelchair users with SCI.
- Assess the theoretical underpinning of a novel mHealth app, Accessercise that aims to increase physical activity in those with disabilities.
- Examine the usability of the Accessercise application using concurrent Think-Aloud interviews.
- Undertake a feasibility study of the Accessercise application before progressing onto a full-scale trial.
General: Which authors influenced your thinking particularly at design stage?
Ma & Ginis (2018) - Meta-Analysis
General: What is a PhD?
A PhD is the highest qualification
General: Whose expertise would have been helpful in supporting you?
It would have been good to have had Prof. Vicky Tolfrey involved more in my project due to her knowledge on PA for people with SCI.
Also, it would be great to have some involvement from scholars out in Canada such as Kathleen Martin Ginis.
General: Which parts of your thesis (other than the chapter that you have already published) do you think will be published and in which journals? How do you know?
Disability and Rehabilitation?
PLOS Digital Health?
General: Why did you choose to structure your thesis by publication rather than by the general approach?
There are 3 reasons why I chose to structure my thesis by publication:
- Loughborough University have been recently changing their formats and prefer students to undertake this approach.
- I followed the MRC Framework for designing/evaluating interventions and because these follow different stages, it made more sense to structure each stage I did as a research article.
- As I want an academic career, the opportunity to work on manuscripts, attempt to publish these during/after my PhD has developed my experience to be ready for this type of career.
General: Explain how you identified (study participants) for your studies?
I used a variety of approaches such as word of mouth, used social media (e.g., X and Facebook), contacted National Governing Body Organisations (e.g., WheelPower) and by contacting participants that shared an interest in previous studies.
General: What have you learnt doing a doctorate?
I have learnt many things during my PhD. Examples include:
- Undertaking a systematic review, usability and feasibility studies, which were new experiences to me which I have never undertaken as an UG and PG.
- Developed my planning and teaching skills
- Invigilating
- Marking
- Supervising
General: Can you tell us a bit more about what you learnt as a researcher?
I can provide a detailed answer for this.
General: The examiner would refer to a page with a figure on it and ask me to explain the figure (e.g., Forest Plot).
TBD
General: Take us through the process of analysis (e.g., UMARS, Content Analysis)?
TBD
General: Any questions for us?
I have no questions
General: Why did you choose this specific analysis? (e.g., Deductive Content Analysis)
TBD
General: What are the advantages and disadvantages of the method of think-aloud interviews you used?
The advantages of think-aloud interviews are that participants’ thoughts and needs can be elicited during testing, and the ongoing verbalised information collected allows the researcher to better identify the source of possible problems
General: Why did you choose that particular framework and not another? We feel that your chosen framework is weak!
TBD
General: In one sentence, what is your thesis?
Understanding how to increase physical activity in adults with physical disability
General: What methodology did you use and justify why?
I used a pragmatist methodology. This followed a mixed-methods approach.
The reason for this was because the Accessercise team approached the research team and wanted a series of studies to be completed. By following the MRC framework, which involves different qualitative/quantitative steps, a mixed-methods methodology was deemed most suitable.
General: What are other methods available that can be utilised? Why don’t you employ then?
Understanding how to increase physical activity in adults with physical disability.
General: Have you published your work and findings in any journals or conference proceedings?
I have managed to publish the following:
- Study 2 (Assessing the theoretical underpinnings of the Accessercise application)
- I have two papers under review (Studies 3-4 Usability and Feasibility)
General: Have you presented your work in seminar or conferences?
I have presented my research nationally and internationally. For example,
- I have presented my research at different events across the UK (e.g., Loughborough annual conference, pint of science, summer showcase, Peter Harrison Event)
- I have also presented my research internationally (e.g., in Canada 2022-2023 and across several Canadian Universities such as Queens, McGill, Laval).
General: If you were given an opportunity to do the same research, would you choose the same methodology?
Yes, based on following the MRC Framework for developing and evaluating a novel mHealth intervention, it made sense to follow the different phases, which involved a mixed methods approach using a pragmatist methodology.
General: Can you mention several scholars who have done many research in the area related to your work?
Kathleen Martin Ginis, Jasmin Ma, Byron Lai, Sonja De Grott, Amy Latimer-Cheung, Shane Sweet.
General: What are you most proud of in your PhD and why?
Studies 3 and 4 - I enjoyed working with people with disabilities to test them physiologically and to support them with using a novel intervention (i.e., Accessercise).
General: Who has had the strongest influence in the development of your subject area in theory and practice?
Kathleen Martin-Ginis
General: Who will be most interested in your work?
People specialising in the area of physical activity for people with disabilities, researchers, students, healthcare professionals etc.
Introduction: Why was the Medical Model criticised and the Social Model recommended?
Disability must be considered as a role between the interaction between an individual’s impairment and an unbending society.
Introduction: Why was the Social Model of Disability developed?
- It was developed to critique several limitations of the Medical Model
- Attempt to better represent the views of people with disabilities and the urge to tackle such biological and reductionist views.
Introduction: What is the Social Model of Disability?
The social model considers disability as a socially constructed concept which results from a society that fails to listen to the voice of functionally diverse people.
Even though the medical model might view a wheelchair user as disabled due to their diagnostic label, the social model would suggest a wheelchair user is disabled because of inaccessible environments or discriminatory guidelines.
The society must change not the individual.
Introduction: Difference between the Medical and Social Model of Disability?
Medical model believes that an individual is disabled because of their condition and that their condition makes them disabled. On the other hand, the social model believes an individual is disabled because of society making them disabled such as an inaccessible building, inaccessible public transport.
Introduction: What are some examples of barriers within the Social Model of Disability?
Lack of inclusion, poverty, badly designed buildings, inaccessible information, inaccessible public transport.
Introduction: What are the 3 key barriers identified within the Social Model of Disability?
- Attitudinal barriers
- Physical barriers
- Informational/communication
Introduction: What are Attitudinal Barriers? (Social Model of Disability)
Attitudinal barriers are making assumptions about an individual’s capabilities which may not be true. For example, these are assumptions about individuals with disabilities that restrict them from participating fully in society. Such as if a person who uses a mobility scooter will also have a cognitive impairment even though this may not be the case.
Attitudinal barriers are ways that individuals with disabilities are labelled, classified, grouped, or disregarded by individuals that do not have a disability.
These attitudinal barriers normally arise from individuals such as friends, family, educators, carers, critics and the people with disabilities themselves.
Introduction: What are Physical Barriers? (Social Model of Disability)
Physical barriers are tangible components of the physical environment within for example sports centres, gyms, hospital and offices.
These barriers restrict people with disabilities from participating in many activities in life.
Physical barriers are normally related to the architectural and design features of an environment.
Examples of physical barriers include Narrow doors, stairs, curbs, inaccessible buildings, lack of handrails and lack of ramps.
However, physical barriers involve more then just architectural barriers the also involve natural physical barriers.
Examples of natural physical barriers include Hill terrain, weather conditions (e.g., snow, rain) and rocky paths that for example, make it challenging.
Introduction: What model of disability was produced because of limitations of the Medical Model?
The Social Model of Disability
Introduction: How can we overcome Physical Barriers?
Policies (e.g., sidewalk maintenance)
Assistive technology (e.g., powered wheelchairs)
Strong support networks (e.g., friends to push, encourage you)
Introduction: What are Information and Communication barriers (Social Model of Disability)
Information and communication barriers restrict people with disabilities from communicating and obtaining relevant information.
Information Barriers: Refer to difficulties in accessing information when it is unavailable or irrelevant.
Communication Barriers: Commonly occur due to limited knowledge regarding different styles and alternative modes of communication (e.g., verbal, written, picture, or sign).
Introduction: What are some limitations of the Social Model?
- Accused of failing to address impairment, known as fundamental to the experience of disability.
- This model does not fully account for the lived experience of the disabled individual it seeks to help and assumes that all disabilities can be helped through changing societies.
- The social model struggles to acknowledge many individual differences (e.g., physical and psychological conditions).
- It labels disabilities as one homogenous group instead of people who vary in gender, age, ethnicity, race, sexuality and limitations.
- Social Model has been criticised as being too simplistic and universalising to thoroughly understand the problems of disability.
Introduction: What model was developed based on the limitations of the Social Model of Disability?
The International Classification of Functioning Disability and Health (ICF) Model
Introduction: Why was the ICF model developed?
Developed to provide a standard language and universal classification for describing functioning and disability across all individuals and health conditions.
Introduction: What is another name for the ICF model?
Bio-psycho-social model
Introduction: Why is the ICF model also called the Bio-Psycho-Social Model?
It integrates parts of the Medical and Social Model to produce a coherent viewpoint of disability
Introduction: What is the ICF model?
The ICF model acknowledges that disability is neither merely a ‘medical issue’ nor a ‘social issue’ but rather a complex phenomenon
Introduction: What are some limitations of the ICF model?
With more then 1,400 categories in the ICF framework, the classification system is too extensive and detailed to be used in daily practice.
1,400 categories involved a significant investment of time, and categories may be discovered that do not offer information or are not relevant in some cases.
Therefore, it requires specific training allocation of further resources for it’s use.
Introduction: How many people globally have a disability?
Over 1 billion people (15%) of the world’s population
This equates to 1 in 7 people or 1 in 4 households
Introduction: How many adults in the world have a disability?
Adults accounts for between 110 and 190 million (3.8%)
Introduction: Why are the rates of disabilities rising worldwide?
- Ageing population
- Increased life expectancy
- Continuing growth in people with chronic diseases
Introduction: Do people with disabilities experience many financial difficulties?
Yes
Introduction: What was the global loss to disability worldwide in 2004?
Between 1.71$ trillion and $2.23 trillion per year
Introduction: What are the 2 key expenses associate with disability?
- Direct Costs
- Indirect Costs
Introduction: What are Direct Costs for Disability?
Direct costs relate to the visible costs associated with the resources used for the diagnosis and treatment of illnesses within the health systems (e.g., medical costs) and the costs of non-healthcare resources (i.e., non-medical costs)
Introduction: What are some examples of direct medical costs?
Diagnostic testing, in-patient care, medications, and other medical supplies.
Introduction: What are some examples of direct non-medical costs?
These costs represent transportation and costs of a special diet
Introduction: What are indirect costs?
These refer to loss of productivity because of reduced force participation, presenteeism and reduced job performance while at work.
Introduction: What are causes of indirect costs?
- Disability
- Premature death
- Disease or injury
Introduction: Name a few examples of different disabilities?
- Physical
- Sensory
- Intellectual
- Neurological
Introduction: What is the most common category of disability in the world?
Physical disabilities
Introduction: What is the definition of physical disability?
Physical disability refers to the lack of physical functioning, mobility, dexterity, or stamina that inhibits daily tasks.
Introduction: What are some examples of physical disabilities?
- Multiple Sclerosis
- Spinal Cord Injury
- Amputation
Introduction: What is the most common physical disability?
Spinal Cord Injury
Introduction: What causes a Spinal Cord Injury?
- Traumatic Spinal Cord Injury
- Non-Traumatic Spinal Cord Injury
Introduction: What are examples of a Traumatic Spinal Cord Injury?
- Car accident
- Fall
- Sports-related injury
Introduction: What is an example of a primary Traumatic Spinal Cord Injury?
Occurs instantly after the injury occurs
Introduction: What is an example of a secondary Traumatic Spinal Cord Injury?
Happens a few minutes after the injury has occurred
Introduction: What is a non-traumatic spinal cord injury?
A non-traumatic SCI is when a disease directly impacts the spinal cord, such as a tumour, infection, or degenerative disk disease.
Introduction: What is the classification of a SCI?
SCI can be classified into complete or incomplete or tetraplegia or paraplegia
Introduction: What is a complete SCI?
Complete SCI injury refers to the complete loss of motor and sensory function below the level of injury
Introduction: What is an incomplete SCI?
An incomplete spinal cord injury occurs whenever an injury survivor retains some feeling below the site of the injury.
Introduction: What is the most common incomplete SCI?
Central Cord Syndrome (CCS)
Introduction: What is a tetraplegia SCI?
An impairment in the cervical segments of the spinal cord (i.e., bottom of the neck to the bottom of the feet).
Introduction: What is a paraplegia SCI?
An impairment in the thoracic, lumbar or sacral segments of the spinal cord (i.e, lower half of the body from waist to bottom of the feet).
Introduction: How would a doctor determine whether you have traumatic/non-traumatic, complete/incomplete, paraplegia/tetraplegia?
They would normally use the AISA Impairment Scale normally within 72 hours by a trained personal such as a doctor.
Introduction: How many people worldwide have a SCI?
250-500k new people worldwide each year, adding to the 2.5 million people around the world living with the condition.
Introduction: What population are most likely to experience a SCI?
Young males between the ages of 18-35.
Introduction: What are common causes of an SCI in young people?
- Car crashes
- Sports Injuries
Introduction: What are common causes of an SCI in older people?
- Tripping
- Falling
Introduction: What intervention has been considered as valuable to improve the overall quality of life in people with SCI?
Physical activity (PA)
Introduction: What are the benefits of PA for people with SCI?
It’s meant to alleviate or prevent numerous health and well-being complications resulting from SCI.
PA can help people with SCI from developing diabetes, heart disease, cancer, stroke.
PA has been recommended in people with SCI as it provides numerous benefits such as improved fitness, developing cardiometabolic health and enhancing the quality of life.
Introduction: How can someone with SCI achieve such benefits?
Following the recommended guidelines of 40 minutes of moderate to vigorous intensity aerobic physical activity each week for cardiorespiratory advantages and at least 90-minutes per week for cardiometabolic benefits.
Introduction: Do people with SCI undertake enough PA?
No, they struggle to meet the recommended guidelines of 40 minutes of moderate to vigorous intensity aerobic physical activity each week
Introduction: Why do people with SCI struggle to meet these recommended guidelines?
Due to intrapersonal (e.g., employment, psychological factors), interpersonal (e.g., social support), and policy-related factors (e.g., funding, transportation).
Introduction: What is the focus of my PhD?
Identify ways to successfully promote physical activity in adults with SCI to minimise participation inequality.
Introduction: Is changing Health Behaviour difficult?
Yes, changing behaviours are difficult as they are highly variable.
Introduction: Why specifically are health behaviours difficult to change?
Health behaviours are difficult to change because they are habitual, normative and preventive.
Introduction: What are habitual behaviours?
These behaviours are undertaken automatically without much consideration
Introduction: What are normative behaviours?
These behaviours bear the weight of tradition and approval
Introduction: What are preventive behaviours?
These behaviours commonly lack a salient immediate outcome
Introduction: Does using health behaviour change theory improve physical activity interventions?
Yes, using behaviour change theory has been identified as a valuable strategy to increase the effectiveness of interventions.
Introduction: What is behaviour change theory?
Set of ideas with specifications of how phemnomena are associated with one another
Introduction: Why are behaviour change theories important?
Behaviour Change Theories are important to help us understand behaviour change and provide an organised framework for effective interventions.
Introduction: Why is difficult to choose a specific behaviour change theory?
Some theories overlap with one another making it difficult to decide on one.
Also, only some theories consider interpersonal, intrapersonal and environmental factors.
Therefore, to overcome limitations of existing models and to improve intervention development, the Behaviour Change Wheel (BCW) was developed that incorporates multiple theories of behaviour change.
Introduction: What is the Behaviour Change Wheel (BCW)?
The BCW can inform all phases of behaviour change from assessing barriers and facilitators to designing and evaluating interventions.
BCW integrates 19 different behaviour change frameworks
The BCW implies that researchers must understand the target behaviour, identify intervention options and then identify content in the form of behaviour change techniques when designing an intervention.
The BCW consists of 3 layers: (1) COM-B model, (2) intervention functions, and (3) and policy categories.
Introduction: What is the COM-B Model?
The COM-B model proposes that for any behaviour to occur, an individual must have the capability, opportunity and motivation.
Each component can be broken down further..
Introduction: What is Capability in the COM-B model?
Capability refers to an individual’s ‘physical’ or ‘psychological’ abilities to enact the behaviour.
This means an individual should hold the right psychological and physical capability to engage in the required specific behaviour.
Physical capability: Physical capability refers to the degree to which a person can participate in the necessary behaviour, for instance, if restricted by a medical illness.
Psychological capability: Psychological capability refers to whether an individual can participate in the right cognitive processes, comprehension, and reasoning to undertake the target behaviour. For example, this includes the knowledge of the behaviour and the ability to comprehend information and to reason.
Introduction: What is Opportunity in the COM-B model?
Opportunity refers to having the ‘physical’ and ‘social’ context that makes it affordable, appropriate, and easy to perform the behaviour.
Physical opportunity: Physical opportunity refers to opportunities supported by the environment (e.g., time, resources, places)
Social opportunity: Social opportunity relates to the social factors that influence how we think about things (e.g., social clues).
Introduction: What is Motivation in the COM-B model?
Motivation relates to an individual’s psychological processes that can trigger and direct behaviour including ‘reflective’ and ‘automatic’ motivation.
Reflective motivation: Refers to an individual’s evaluations and plans to engage in the desire behaviour, which includes analytical decision making.
Automatic motivation: Refers to the brain processes that strengthen and direct behaviour such as habitual processes.
Introduction: What is the second layer of the BCW?
Nine intervention functions
Introduction: What are intervention functions?
Intervention functions help to explain how an intervention seeks to change behaviour
Introduction: What are some examples of intervention functions?
Modelling, environmental restricting and restrictions
Introduction: What are Behaviour Change Techniques (BCTs)?
A BCT is a strategy that helps an individual change their behaviour to promote better health (e.g., setting goals, packing your gym kit the evening before).
BCTs are the “active components” of behaviour change interventions.
Introduction: What is the Behaviour Change Taxonomy (BCTTv1)?
The BCTTv1 is an extensive and agreed list of BCTs which offer standardised definitions, labels, and examples of each BCTs that can support in designing interventions.
Introduction: How was the BCTTv1 developed?
Over 50 behaviour change experts from different countries.
It comprises 93 BCTs that are hierarchically organised into 16 clusters.
Introduction: What is the 3rd and final layer of the BCW?
The final layer comprises of seven policy options that can be used to help deliver the intervention functions.
These include service provision, communication/marketing, fiscal measures, regulation, guidelines, legislation and environmental/social planning.
Introduction: Overall, what does the BCW help to do?
BCW allows intervention designers to consider (1) what behaviours need to be addressed? (COM-B model) (2) How will I successfully change the behaviour and what component does the intervention require, and (3) what needs to be put in placed for the intervention to be provided?
Introduction: What is one physical intervention that in recent years that has been deemed useful?
Mobile Health (mHealth)
Introduction: What is mHealth?
mHealth refers to the use of mobile technologies to support the success of health objectives such as physical activity.
Introduction: Why is the mHealth market growing so quickly?
Widespread availability of wireless network infrastructure and smartphone technologies
Introduction: What are some common mHealth apps to monitor physical activity?
- Fitbit
- Nike+
- MyFitnessPal
- Strava
Introduction: Why are mHealth apps so good and have such a good track record?
- mHealth apps provide real-time feedback
- Apps can track activities (e.g., how many steps you have done)
- Remind users to undertake physical activity
- Easy way to socialise with other users (if that function is available)
- It can help tailor interventions to the needs of users or specific groups
- Can undertaken physical activity in nearly all environments (e.g., inside, outside)
Introduction: Why would mHealth interventions be useful for people with disabilities?
- Could support people with disabilities to overcome numerous physical activity related barriers
- In-person barriers could be difficult for people with disabilities to undertake, so mHealth related interventions could be an effective solution.
- Delivering an intervention through mHealth can reduce transportation and built environment barriers to access physical activity that are significant for people with physical disabilities.
- mHealth apps may be more affordable rather than having to use a gym and pay for gym membership.
- mHealth interventions can provide tailored content for people with disabilities
Overall, the above shows the possible benefits of using mHealth forms (e.g., smartphone apps) to provide physical activity interventions to those with physical disabilities.
Introduction: Why may there not be many physical activity mHealth apps for people with disabilities?
Although people with disabilities have access to mobile technology at the same rates as the general population, people with disabilities are 20% less likely than the general to own a smartphone.
Introduction: What makes Accessercise novel to other physical activity apps?
- Focuses on multiple disabilities (e.g., SCI, Amputee) unlike some other apps
- Content is shaped around the disability that you select on the app, which no other app has.
- Is a new app in the UK and has yet to be evaluated
Introduction: What is the Medical Research Council (MRC) framework?
A framework that helps to design and evaluate effective health behaviour change interventions.
To maximise the effectiveness of new interventions for people with disabilities, these should be comprehensively designed and evaluated. To this end, the UK Medical Research Council (MRC) has provided updated guidance outlining how this can be best achieved.
Introduction: So, why is the Medical Research Council (MRC) framework important?
The MRC framework outlines a five-stage conceptual framework to support the development and evaluation of complex interventions within healthcare settings that incorporate the following stages:
- Development (or identification of the intervention) (Stage 1)
- Feasibility/piloting (Stage 2)
- Evaluation (RCT – Stage 3)
- Implementation (Stage 4)
Each phase includes sub-stages which require applications to follow closely to develop, evaluate and implement an intervention appropriately.
Stage 1 (Development): Identifying the evidence base – Commonly through a systematic review), identifying appropriate theory, and modelling process and outcomes.
Stage 2 (Feasibility/Piloting): Testing procedures, testing sample size, testing equipment, estimating recruitment/retention.
Step 3 (Evaluation): Assessing effectiveness, acknowledging change processes and evaluating cost-effectiveness
Step 4 (Implementation): Dissemination, surveillance and monitoring, and long-term follow-up.
Introduction: So, what stages do I follow in my PhD?
In this thesis, we focus on the development (stage 1) and feasibility/piloting (stage 2) phases of the MRC framework, using a triangulation of quantitative and qualitative methods.
Introduction: Why did I use mixed methods in my PhD?
As we were contacted by the Accessercise team to conduct a formal evaluation of their newly developed app, which necessitated a combination of empirical studies, we felt that a mixed-methods approach was most suitable.
Introduction: What research paradigm did we follow?
Pragmatism
Introduction: Why did I go from SCI to Physical Disabilities?
Due to the world-leading expertise on SCI at the Peter Harrison Centre at Loughborough University, as well as people with SCI being at the lowest end of the spectrum, promoting physical activity in this population is imperative.
However, while Chapters 2-3 focus on addressing physical activity issues for adults with SCI, SCI patients have individual needs, problems, limits, minority issues and demographic distribution concerns. That said, recruiting participants with SCI was challenging. These individuals normally face difficulties participating in the community due to accessibility, affordability, and acceptability issues.
Introduction: So, what is your PhD about?
The overall aim of this PhD thesis is to understand how to increase physical activity in adults with physical disabilities. Specific aims were to:
- Assess the effectiveness of existing physical activity interventions in manual wheelchair users with SCI.
- Examine the theoretical underpinning of a novel mHealth physical activity intervention, Accessercise, using the BCW.
- Qualitative evaluate the usability of the Accessercise intervention using concurrent Think-Aloud interventions in adults with different physical disabilities.
- Undertake a feasibility RCT assessing Accessercise in adults with physical disabilities prior to undertaking a full-scale trial.
Introduction: So, tell me, why is your research significant?
This research contributes to the field of physical activity, behaviour change and physical disabilities by understanding how to increase physical activity in adults with disabilities.
Through this research, we evaluate a novel mHealth intervention. By doing this, we can understand the theoretical underpinning to facilitate physical activity in this population.
Most of all, this research can help intervention designers develop their knowledge of the effectiveness of existing intervention and appropriate ways of designing and evaluating physical activity behaviour change interventions.
Ultimately, this research can help with the overall goal of improving physical activity, quality of life and reducing sedentary behaviour in adults with physical disabilities.
Systematic Review: What was the aim of the systematic review study?
The aim of this study was to assess the effectiveness of interventions to increase physical activity in adult manual wheelchair users with spinal cord injury.
Systematic Review: How many databases were searched for the systematic review study?
9
Systematic Review: What were your primary outcomes in your systematic review study?
Self reported physical activity, behavioural physical activity and functional fitness.
Systematic Review: What were your secondary outcomes in your systematic review study?
Adverse effects, physiological health, psychological wellbeing, general health-related QoL, Feasibility (acceptability, usability and adherence).
Systematic Review: How did you measure methodological quality?
Downs and Black (1999) checklist
Systematic Review: How did you measure risk of bias? Also why did you measure Risk of Bias?
Risk of Bias 2
Assessment of risk of bias is regarded as an essential component of a systematic review on the effects of an intervention.
Systematic Review: How did you measure certainty of evidence?
GRADE
Systematic Review: How many studies did you end up including in your systematic review?
11
Systematic Review: How many studies were included in your meta-analysis?
6 studies were included in the meta-analysis demonstrating that self-reported physical activity significantly improved in the intervention vs the control group.
Systematic Review: What did you find for your other secondary outcomes?
Meta-analyses were not possible due to heterogeneity of outcome measures, but similar patterns of improvement were found for functional fitness, behavioural physical activity, physiological measures, psychosocial wellbeing, adverse effects and quality of life.
Systematic Review: So, what are the conclusions of your systematic review study?
Interventions that aim to improve physical activity in manual wheelchair users with SCI appear to be effective, at least in the short term.
Future research should investigate whether delivering different interventions via different modes can result in longer-term benefits.
General: What are some key strengths of your PhD thesis?
- We used a mixed-methods approach using qualitative and quantitative techniques. It enabled more research gaps to be addressed within one body of work. For example, the feasibility study, the qualitative data offered further insight into the quantitative findings, as well as participants’ acceptability of the intervention by understanding what they liked or disliked about the trial.
- We followed the MRC framework for designing and evaluating interventions as it’s more likely to lead to success.
- We followed numerous reporting frameworks (e.g., TiDieR, CONSORT, PRISMA).
- We used the Behaviour Change Wheel!
Introduction: Why have you just looked at mHealth and not other formats of interventions?
Since the COVID-19 pandemic, the use of smartphones development of mHealth apps on the market has expanded, with the use of apps increasing among the disabled population. Additionally, since people with disabilities struggle to participate in physical activity interventions in-person, the use of a smartphone app like Accessercise overcomes barriers and offers people with disabilities with an easier format to undertake PA, socialise and to monitor physical activity performance.
Systematic Review: Why is it important to develop, evaluate and implement intervention to encourage people with SCI to successfully engage in regular physical activity?
People with SCI are physically inactive and are at the lowest spectrum of the physical activity continuum.
People with SCI are at increased risk of developing numerous health complications because they are inactive.
People with SCI are not meeting the recommended physical activity guidelines to achieve such health benefits (e.g., reduced risk of depression, better QoL).
Systematic Review: Why are people with SCI likely to be physically inactive?
This reduced levels of physical activity in individuals is likely to be explained by the numerous barriers to physical activity that this population experience.
Systematic Review: What sort of PA barriers to people with SCI experience?
Lack of transportation, lack of time, negative attitudes towards physical activity and exercise, lack of funding for programmes, expensive equipment, limited coach/person with a SCI knowledge of what opportunities exist, increased cost to participate.
Systematic Review: What sort of behavioural interventions have been shown to be efficacious in addressing some of the barriers to PA for people with SCI?
Home-and strength-based training (delivered in-person), (over the phone) or (online through video conferencing software).
Systematic Review: What makes an intervention effective? (something related to psychology)?
Suitable behaviour change theories.
Systematic Review: What suitable behaviour change theory exists?
Theory of Planned Behaviour, Social Cognitive Theory, Health Belief Model
Systematic Review: What does the MRC Framework saying about Behaviour Change Theory
The MRC Framework recommend that the development and evaluation of complex health interventions should incorporate suitable theory to improve the likelihood that they will lead to behaviour change.
Systematic Review: Have many interventions that aim to improve physical activity in people with a physical disability used health behaviour change theory?
No, it has been inconsistent.
Systematic Review: Have many systematic reviews been undertaken that evaluate the effectiveness of physical activity interventions in people with physical disabilities?
Yes, a couple of interventions exist (e.g., Ma & Ginis, Watson, 2023).
Systematic Review: What did the systematic reviews by Ma and Ginis 2018 and Watson 2023 find?
These studies found that interventions significantly increased physical activity in this population.
Watson also found that interventions were more effective when they incorporated specific behaviour change techniques (BCTs).
Systematic Review: What makes my systematic review different from that of Ma and Ginis (2018) and Watson et al (2023)?
Ma and Ginis (2018) and Watson et al (2023) included studies that recruited heterogenous SCI populations, including ambulatory, as well as manual wheelchair users and powered wheelchair users. However, most (80%) individuals with SCI use a manual wheelchair for mobility.
Manual Wheelchair Users with SCI are among the least physically active population groups with only 13-16% of SCI Manual Wheel Users with SCI undertaking any form of physical activity.
Therefore, this systematic review addresses this gap and aims to investigate the effectiveness of physical activity interventions exclusively in this population (e.g., effectiveness of physical activity interventions for manual wheelchair users with SCI).
Systematic Review: What is PROSPERO in your systematic review?
PROSPERO is an international database of prospectively registered systematic reviews in health and social care
Systematic Review: What is PRISMA in your systematic review?
PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) is the standard format for reporting systematic reviews. This approach helps with structuring the methods and for ensuring the systematic review is done correctly.
Systematic Review: What is PICOS in the systematic review?
To define a researchable question, the most commonly used structure is PICO, which specifies the type of Patient or Population, type of Interventions (and Comparisons if there is any), and the type of Outcomes that are of interest.
Systematic Review: Why did you not include children in your systematic review?
Children and Adults experience different physiological adaptations.
Systematic Review: What are Behaviour Change Interventions?
Behaviour change interventions are ‘Coordinated sets of activities designed to change specified behaviour patterns’.
Systematic Review: What sort of research designs did you include in your systematic review?
Mainly peer reviewed articles: Randomised Controlled Trials (RCTs), Non-RCTs, pre-post, before and after studies were included.
Systematic Review: What sort of research designs were not include in the systematic review?
Non-peer reviewed articles: Case reports, case studies, conference abstracts, posters and book chapters were excluded.
Systematic Review: Can you name a couple of the databases that you searched for papers?
APA PsychINFO, MEDLINE, PubMED, ISRCTN, ClinicalTrials, SportDiscuss, Scopus, Web of Science and Cochrane Library.
Systematic Review: When and how long did it take you to complete the database searches?
April 2021 and I completed them all in 1 day!
Systematic Review: Did you use any software to record the amount of papers you obtained, removed, screened etc?
Covidence
Systematic Review: What is covidence?
The world’s leading software for managing and streamlining your systematic review
Systematic Review: What tool did you use to measure Risk of Bias?
Risk of Bias 2