Practice questions - Occupational health Flashcards
What is the definition of physical activity?
‘’Any bodily movement produced by contraction of skeletal muscle that results in energy expenditure’’
Under what domains are you doing ‘physical activity’?
During:
- Occupational work/education
- Transportation
- Household acitivites
- Leisure time
What does ‘intensity’ mean when talking about physical activity?
The intensity says something about the amount of physical power that the body uses when performing an activity. Everything you do when you’re awake counts as physical intensity since you’re busy doing something.
What does MET mean?
Metabolic equivalent. It says something about the ratio of your working metabolic rate relative to your resting metabolic rate.
Example:
–> 1 MET is defined as the energy you use when you’re resting or sitting still
– 4 MET means you’re exerting four times the energy than you would if you were sitting still like when you’re biking, or jogging.
What are the four physical intensity/activity levels? And what MET-level goes with it?
–> Sedentary movement (≤ 1.5 MET)
–> Light movement (> 1.5 and < 3 MET),
–> Moderature activities (≥ 3 and < 6 MET)
–> Vigorous activities (≥ 6 MET)
What activities are health enhancing physical activities?
Moderate and vigorous activities.
When are the biggest gains when doing physical activity?
When you just started doing sports or activties (so in the beginning)
Would it be better to use questionnaires or an activity tracker?
An activity tracker, because it gives an objective assessmen, while the questionnaires are prone to recall and social desirability bias.
There is an obese patient who is diagnosed with type 2 diabetes. You have a motivational interview with her. You decide to first ask her the 1-10 ruler for motivation. You: “If on a scale of 1 to 10, 1 is not at all motivated to change your behaviour and 10 is 100% motivated, what number would you give yourself at the moment?”
Karen: “I think I would be a six”
Which two follow up questions would be best to ask Karen to elicit change talk? (Motivational talk)
- Why did you choose this number and not 1 (or a lower number)?
- What would you need to get from this number to a higher number?
Stella, an 8-year old girl with slight overweight visits your general practice. She complains that
both during the general physical education class and during recess she is often left out as she
cannot keep up with her (normal weight) friends both regarding endurance as well as strength.
She quickly gets tired during physical activity. Furthermore she sleeps poorly.
What should be adviced considering duration and frequency for the moderate to vigorous physical activity (Aerobic activities)? Use the World Health Organisation physical activity recommendations in your answer.
There should be adviced to do moderate to vigorous physical activity mostly aerobic activities (intensity): for 60
min (duration) per day (frequency)
Why is childhood obesity a risk in SCFE?
Is causes abnormal force on a growth plate which has an oblique alignment.
In a boy, 10 years old with spastic cerebral palsy, you find shortening of the calf muscles and spasticity. He complains about getting tired easily. He is no longer able to walk to school which
upsets him (previously he could walk for 10 min)
Name two problems on the level of body functions and structures (ICF-model) for this patient.
- Muscle shortening
- Spasticity
- Fatigue
What is the difference between sedentary behavior and physical inactivity?
Sedentary behavior: is any waking behavior characterized by an energy expenditure <1.5 MET while in a sitting or recline posture (e.g. prolonged sitting).
Physical inactivity: is insufficient levels of moderate to vigorous intensity physical activity (e.g. not meeting the
(WHO) physical activity recommendations).
Loyen et al. (2016) – of which the results are presented in Figure 1 - used questionnaires as the
method to measure sitting time. Give two disadvantages of this method.
Questionnaires are self-reported giving:
- recall bias
- social desirability bias
- questions ask for usual day (not possible to assess differences between weekend and weekdays)
You decide to use ActivPAL, Actigraph as an objective measurement method to measure physical activity. Describe 3 details you need to specify in your measurement protocol so other researchers can exactly replicate this procedure.
- Measurement device (name, brand, type (e.g. Actigraph, ActivPAL)
- Initialization frequency (e.g. raw date recorded in 1-minute epoch)
- Wearing day protocol (e.g. minimum number of days worn, 9-day protocol)
- Wearing instructions (e.g. right hip, only during waking hours, removing for water-based
activities) - Keeping a diary (date and time information on sleep, work, removal)
- Analysis protocol (e.g. what is considered as non-wear, what is considered a valid day
(480minutes)) - Outcome measure (e.g. sedentary, light, moderate, vigorous / sedentary, standing,
stepping)