Week 7: Physical Activity Promotion Flashcards
What are the reasons for promoting PA?
- Benefits of PA
- Not meeting PA guidelines
- PA boosts immune system
- Detraining
- Poor Exercise adherence
What are the benefits of PA?
- Increase CR fitness
- Strength Bone and muscles
- Improve mental health and mood
- Reduce risk for non-communicable diseases
- Regulate body weight
- Increase physical independence and mobility
Statistics for people not meeting PA guidlines
85% of adults do not meet both PA and muscle strength activities
Approx 85% of australian children and adolescents do not meet the PA and screen based behaviour guidelines
How does PA boost the immune system?
When PA guidelines were not met study showed there was
- Increased risk of infection
- Increased severity of illness and illness related mortality
Significant relationship between having higher CRF and decreased risk of dying from Covid-19
What is the effect of detraining?
- Loss of cardiorespiratory fitness
- Loss of muscular strength and endurance
- Alteration to energy metabolism –> increased reliance on CHO for energy source and decreased contribution from lipid metabolism
–> resulting in decreased efficiency of glycogen sparing
What is some evidence surrounding poor exercise adherance?
Approx 50% of participants who commence an exercise programme will drop out within the first six months (dishman 1982, 2001)
Define Adherence?
Refers to making an agreement (contract)
The extent to which a persons behaviour corresponds with the agree recommendation from a healthcare provider
e.g. calculated as the proportion of participants remaining in the program at each stage
Define Compliance
The extent to which a patients behaviour concides with the clinical prescription
Calculated as the proportion of total intervention days the participants achieved the prescribed daily activity targets
Identify positive exercise behaviour predicted by positive affect?
Thoughts of friends / social interaction at the gym
“no pain no gain” –> maintainers
Identify negative exercise behaviour predicted by negative affect?
DOMS –> causes early dropouts
Barriers to PA
- Lack of time (both perceived and physical
- Lack of knowledge
- Personal attributes (education, income, obesity, smoking etc)
- Genetics
Facilitators to PA
- Good Access to facilities
- High degree of knowledge
- Enjoyment of exercise
- High sociability
What is BDNF? What does levels of BDNF indicate?
Brain derived Neurotrophic Factor
Higher levels of BDNF are evident in physically active individuals –> greater positive mood during exercise
- Increases the adherence to the activity assisting in a potentially needed behaviour change
Overweight OR obese individuals BDNF can increase with exercise training
What is the brain reward circuit?
A role in ones tendency to engage in and enjoy exercise
What are Endocannabinoids eCB? What do they promote?
They are molecules in the body that contribute to positive mood outcomes with exercise
activation of the eCB system causes:
- Release of endorphins into hypothalamus
- dopamine transmission
Creating a positive reward process
