Unit 1 Flashcards
Physical activity
All bodily movement that cause increases in physical exertion beyond that which occurs during normal activities of daily living
Exercise
A form of leisure physical activity that is undertaken in order to achieve a particular objective, such as improved appearance, improved cardiovascular fitness or reduced stress
Exercise is more of a subcategory of physical activity, not related to ___
Work
Psychology
A field of study concerned with various mental processes people experience and use in all aspects of their lives
Exercise Science
The study of all aspects of sport, recreation, exercise / fitness and rehabilitative behaviour
What is exercise psychology and why study it?
The application of psychological principles to the promotion and maintenance of leisure physical activity. The psychological and emotional consequences of regular, leisure physical activity
Why study exercise psychology?
- to understand the psychological antecedent of exercise behaviour
- to understand the psychological consequences of exercise
Rehabilitation Psychology
Relationship between psychological factors are the physical rehabilitation process (motives of involvement). Also involved as a complementary strategy for treating diseases. Returning the individual to a healthy physical and / or mental state
Questions to ask …
1 - what psychological issues facilitate or hinder the injury rehabilitation process?
2 - what forms and amount of exercise provide psychological benefits for cancer, AIDS, spinal cord injury or cardiac rehabilitation patients?
3 - can exercise improve quality of life for those individuals dealing with injury, disease or illness
Health Psychology
Psychological processes related to health and health care (nutrition, smoking cessation, medication adherence)
Behavioural Psychology
Interrelationships of behavioural, physical and psychological factors in treatment of disease and disability (ex. investigating the biological and mental factors associated with stress) (ex. emotional, social and biological implications of exercise for pregnant women)
Sport Psychology
Focuses on the psychological antecedents and consequences of sport performance (self-confidence, anxiety and attentional focus and their bi-directional relationships with sport performance)
What is adoption vs. adherence?
Adoption is the beginning stage of an exercise regimen (starting out) while adherence is maintaining an exercise regimen for a prolonged period of time following the initial adoption phase
What is non-compliance?
Talked about when exercise is actually prescribed, medical professional, someone not going along with exercise prescription
Psychological consequences of exercise …
Reduce acute and chronic negative and promote positive psychological / emotional states and to reduce stress and anxiety
Common benefits of physical activity
Lowers morality and morbidity rates, reduces risk of many diseases (diabetes, hypertension, heart disease, certain cancers), enhances positive general mood, improves body image, self-esteem and self concept, maintain healthy weight, enhances ability to perform tasks of daily living (improved reaction time, cognitive function and ability to process information)
Reasons to exercise …
Enhanced physical appearance, improved physiological and psychological health, improved social relations
Common said barriers to physical activity
Perceived barriers - things people believe are insurmountable obstacles to exercise - the perception of lack of time and boredom / lack or enjoyment
Genuine barriers - convenience / availability (transportation, equipment, facilities), environment / ecological factors (weather, climate, safety) and physical limitations (injuries, disease, fatigue)
Barriers to exercise are common excuses, helping people adopt a healthier lifestyle and adhere to it, you want to …
Alter people’s perception on exercise and physical activity
Females tend to exercise __ than men
Less
Older individuals tend to exercise __ than younger populations
Less
Why are there so few studies of non-exercisers?
Can be difficult to find non-exercisers who want to participate in studies
Negative outlook on exercise
Harder to find them, exercisers can be found in the gym or sports clinic, etc..
Can be awkward with non-exercisers to talk about why they don’t exercise (may feel guilty, negative experience)
Why use focus groups in studies?
Focus groups are small groups formed a common characteristic or interest (ex. age), the interaction can help the conversation flow and allows the participants to bounce ideas off each other
Study of female non-exercisers and their opinion on exercise details
40 women aged 25-75 years, divided into focus groups by age, non-exerciser was someone who engaged in exercise 1 time a week or less in the past 6-months to a year
Study: how often do non-exercisers think about exercising (different age groups)
25-35 and 45-55 years - everyday, multiple times a day
65-75 years - don’t actively think about it
Study: what non-exercisers think about exercise
Time consuming, boring, not enjoyable, can be lonely, can see themselves working hard but not enjoying it, associates exercise with “work” and thought of it as a “chore”
Study: thoughts from non-exercisers on the benefits of not exercising
25-35 age group - they like that they don’t have to be around fit people and constantly compare themselves to them, less stress
45-55 age group - spending more time with family, not wanting to make an effort into fitting it into their day
Emergence of exercise psychology - philosophy of physical fitness
Since late 1700s (industrial revolution)
Fitness craze begins ..
1970s to 1980s, advocating for greater physical fitness really took off in Hollywood in particular, introduction of fitness videos. Focuses on aerobics, weight training, jogging and racket sports
Increased emphasis on what in the 70s to 90s
Emphasis on physical appearance - females getting smaller and men getting more muscular. Majority of emphasis came through the media, set standards and norms implemented
How was the emphasis of exercise changed in the last 30 years or so?
Used to be more of an emphasis on appearance of the body but now it is beginning to have a bit more focus on using exercise to reduce stress and improve one’s health. Greater emphasis on taking charge of one’s own health and trying to avoid medical assistance as much as possible. Used to have medical model which indicating a focus on medicine and health care professionals being in charge of everyone’s bodily health, but recently people have been recognizing their own value in keeping themselves healthy
Development of the biopsychosocial approach to behaviour - the belief that the body, mind and social environment influence one another, and ultimately, behaviour
Case study A - someone with commitments with work, family and are generally fatigued, not enough time to exercise (how do you get them moving?)
Changing negative perspective of exercise, most people know about the benefits of exercise already, find something they enjoy doing, find a way to adopt a more healthy lifestyle to fit it into their day (to minimize extra time requirement)
Ensure they know the value of exercise in reducing stress and fatigue in someone’s life
Case study B - injury, physical rehabilitation, pain, fear of returning to action
Allow the patient to speak with others who have experienced similar injuries and who have successfully rehabilitated may help to alleviate some anxiety and increase confidence
Case study C - self-consciousness, low self-esteem, negative attitudes toward exercise
Suggest getting involved in an exercise program that is geared towards people who are overweight so that she has social support and may help to reduce her concern with others looking at her body in a negative fashion
What is an epidemic?
Anything that affects a large number of people, study of patterns of disease, risk factors and causes
What is epidemiology?
Study of epidemics, dealing with the incidence, distribution and control of a disease in a population
Epidemic of Physical Inactivity
Physical inactivity and poor diet - responsible for at least 16% of deaths each year. Contributes to cardiovascular disease, type II diabetes and some cancers. Reduced occupational physical activity, not involved in lifestyle. Increased stress of lifestyle
BMI of obesity
BMI over 30, pounds overweight for individuals 5’4
Healthy people 2020
U.S Department of Health and Human Services task force builds upon Healthy People 2020 to create specific objectives for the U.S physical activity by 2020
Goal is to improve health, fitness and quality of life of the U.S population through daily physical activity
Measurements of physical activity behaviour
self report / survey (questionnaire, interview, daily activity logs) (Godin Leisure Time Exercise - recall exercise of las week or typical week)
objective / technological devices (heart rate monitor, pedometer, accelerometer, GPS)
observation (direct or indirect, class attendance)
Epidemiology of physical in(activity) - the 5 W’s
WHO - to what extent are individuals within a particular society physically active
WHERE - where are people most likely to engage in physical activity
WHEN - what variations exist in physical activity patterns across groups of individuals
WHY - why are certain individuals physically active while others are not
WHAT - in what are physical activities are people most engaged in
Canadian physical activity guidelines for children aged 5-11 and youth 12-17
At least 60 minutes of moderate to vigorous intensity, vigorous at least 3 times per week, muscle and bone strengthening at least 3 days per week
Canadian physical activity guidelines for adults 18-64 years
At least 150 minutes of moderate to vigorous intensity of aerobic physical activity in bouts of 10 minutes or more, benefits of muscle and bone strengthening at least 2 days per week
Canadian physical activity guidelines for older adults of 65 years plus
At least 150 minutes of moderate to vigorous intensity of aerobic physical activity in bouts of 10 minutes or more, benefits of muscle bone strengthening at least 2 days per week, if poor mobility, they should perform activities to enhance balance and prevent falls
Countries studies for physical activity around the world …
Australia, Canada, England, Scotland, U.S
Demographics studied for physical activity …
Age, gender, ethnicity, socioeconomic status and educational level
Sedentary lifestyle across the globe
In general, 50-70% of adults in countries studied do not meet recommendations
Australia (15%)
United States (40%)
Brazil (87%)
Canada (increase from 40% in 1997 to 49% in 2005)
Increased age means ..
Decreased physical activity
In Australia, sedentary rates ___ from 18-29 years to 60-70 years
Triples from 6.3% to 18%
In Canada, children 1-4 years spend approximately ___ per week being physically active, while teenagers 13-17 years spend ___ the time
28 hours per week, teens half the time
Relationship between childhood and adult physical activity levels
No relationship between the two activity level
Relationship between age and no activity in Canada
Relatively linear increase between age no activity
English adults 75+ years engagement in medium and high levels of PA
More than 20% engagement
Gender and physical activity
Men have historically been more physically active then women
Men and PA in Canada
54% men, 48% moderately active (at least 30 minutes of moderate to vigorous physical activity daily)
Men vs. women with type of PA
Men are more likely to engage in vigorous activities, while women engage in more moderate intense activity
Ethnicity and PA
Whites tends to be more physically active engaging in more moderate vigorous PA than other ethnic groups. Both whites and blacks engage in more vigorous physical activity than Asians
Percentages of ethnicities and TV watching in the U.S
Fewer white high school students (26%) watch TV for more than two hours compared to Hispanic (38%) and African Americans (54%) students
Income and PA relationship
Relatively direct and linear relationship but not consistent across countries and varies by other factors such as gender. Relationship holds best for Canadian and Brazilian adults
Education and PA relationship
For most countries including Canada, moderate to vigorous physical activity levels increase with higher education levels. Sedentary rates decline sharply with increased education levels
If parents education is less than a high school education ..
50% teens engage in vigorous PA
If parents education is high school graduate ..
54% teens engage in vigorous PA
If parents education is some college…
68% teens engage in vigorous PA
PA participation patterns
Worldwide PA levels are extremely low, time engaged in PA declines with age. Men are more likely to engage in vigorous exercise, but women tend to engage in as much, if not more, moderate activity. Low income groups and ethnic minorities tend to participate in less physical activity than the general population. Higher education = more PA
Consequences of PA and Inactivity
Physically active people have lower overall all-cause mortality rates than sedentary people. Midlife increases in PA is associated with reduced risk of mortality
Morbidity (disease) in U.S percentages
6% of Americans have CHD (coronary heart disease)
Over a million have a heart attack each year
12% have adult-onset diabetes (type II)
32% have high blood pressure
70% are overweight or obese
How do we investigate the relationship between PA and morbidity / mortality rates?
Surveys will have association but it is hard to see a cause and effect. Best way - longitudinal studies which are large scale studies that examine the behaviour of a specific group of people over a long period of time. There are few longitudinal studies because of the cost and it is hard to conduct
Most data presented is ..
Cross-sectional that we find through questionnaires
San Francisco Longshoremen Study
Participants were thousands of long shore workers, 22 year follow up period, measures - work activity, CHD records, mortality data
Findings - mean who expended 8,500 kcal / week on the job had lower risk of death from coronary heart disease at any age. Age wasn’t a factor here, if more active, less likely to die from a heart attack
Harvard Alumni Study
17,000 Harvard alumni involved in the study, 16-year follow up period (1962-1978), measures - self-reported leisure time physical activity, CHD records, mortality data
Findings - men had a 53% reduction in all-cause mortality when participating at least 3 hours / week of leisure-time activity, on average, active individuals lived 2 years longer than inactive individuals
True or false - people with a disability or chronic disease are insufficiently healthy to participate in exercise and do not reap benefits from exercise?
False
PA and people with disability
They tend to be less active then the normal population. People with a disability or chronic disease are far less active than general population and are at increased risk for secondary physical and psychological health problems
Stat about PA of people with disability vs. general population
23% of people with disabilities are PA 20 min / day, 2 days / week vs 33% of the general population
Amount of people in the U.S population with at least 1 chronic disease or disability
45%
Major barrier for people with disability and PA
Access to programs is a major barrier to PA for people with a disability, difficult going into a regular fitness center. May need special equipment, different workout (need a program that will fit their disability), different facility. We need to create PA opportunities for people with special needs
Theory
Explains why phenomenon or behaviour occurred, can be graphically represented
Importance of theories
Allows us to better understand and predict physical activity behaviour, gives us a scientifically validated blue print from which to formulate affective behavioural intervention. Enables us to organize exercise behaviour variables in a coherent manner (for example, self-efficacy and motivation theories, which one is the theory based on or is the focus)
Model
Acts as a visual representation of a phenomenon or behaviour, does not always indicate why phenomenon occurred, they just show you the situation is but do not describe why it is that way
Example of a behavioural model of exercise
Habitual exercise –> relapse (no exercise) –> resumption of exercise –> habitual exercise (back to start)
Repetitive cycle, exercise then no exercise then resumes and exercise
This is a model that represents the behaviour but does not explain why this happens, we need a theory to explain the reason or the why. Does not explain why at all, just shows what happens
Motivation
Degree of determination, drive or desire with which an individual approaches (or avoids) behaviour, direction and intensity of ones effort
Origin of motivation
Intrinsic - motivation from within
Extrinsic - motivation from a force outside the individual
Expectancy value theories
Motivation (and thus behaviour) is predicted on the following - an individual’s expected behaviour outcome, the value (or importance) that the individual places on that predicted outcome
Expectancy-value approach applied to exercise behaviour
Value = high, expected outcome = inability to exercise, failure to adopt
Value = low, expected outcome = ability to exercise, failure to adopt
Value = low, expected outcome = inability to exercise, failure to adopt
Value = high, expected outcome = ability to exercise, successful adoption
Theories that have grown from Expectancy-Value approach
Social cognitive theory (SCT), theory of planned behaviour (TPB), theory of reasoned action (TRA) and self-determined theory (SDT)
Social Cognitive Theory / Self-Efficacy Theory
Exercise behaviour is influenced by both (1) human cognition and (2) external stimuli
Human cognition - expectations, intentions, beliefs, attitudes
External stimuli - social pressures, experiences
A person may intend to be physically active, but external forces may prevent their from engaging in exercise (friends don’t so they don’t)
Self-efficacy
Describes how individuals form perceptions about their capability to engage in specific behaviours. Focuses on the extent to which individuals feel they will be successful, given a particular set of abilities and their unique situation. Not concerned with an individuals perception of their ability. A situation-specific form of self-confidence
Four primary sources of self-efficacy
Past performance accomplishments, vicarious experiences, social persuasion and physiological / affective states
Self-efficacy - past performance accomplishments
An individual’s perception of degree of success, having previously engaged in similar activities (running associated with walking)
Self-efficacy - vicarious experiences
Modeling and imagery, one individual viewing the performance of a behaviour by another individual (the model), the greater the perceived similarity, the greater the influence
Self-efficacy - social persuasion
Verbal and nonverbal persuasive tactics
Self-efficacy - physiological / affective sates
Feelings of pain or fatigue, positive or negative emotions
Diagram of social cognitive theory
How the behaviour, cognition and affect dries the influence and self-efficacy
Measuring self-efficacy
The level (referring to an individual’s belief that they can successfully perform various elements of a task) and strength (the individual’s degree of conviction that they will successfully accomplish each level) of self-efficacy
Scale and rate confidence (questionnaire)