Unit 3 (AOS1 outcome 1) Monitoring and Promoting PA- Chapter 1

Question 0

What are the disadvantages of using Accelerometers (objective) to assess physical activity?

Answer 0

• expensive for large populations ($250-$3000)
• can alt physical activity behaviour (reactivity)
• not sensitive to low impact physical activity thus can underestimate activities that are predominantly upper body

Question 1

What are the advantages of using Accelerometers (objective) to assess physical activity?

Answer 1

• can assess sedentary/low intensity physical activity
• can estimate time spent in MVPA
• small, lightweight, non-invasive compared to heart rate monitors
• assess dimensions, intensity, frequency and duration

Question 2

What is the difference between uniaxial and biaxial/triaxial accelerometers?

Answer 2

A uniaxial accelerometer measures motion in a single plane while a biaxial or triaxial accelerometer monitors multiple planes

Question 3

What are the advantages of using Pedemoters (objective) to assess physical activity?

Answer 3

• inexpensive
• small, lightweight, non-invasive
• easy to administer to large groups

Question 4

What are the disadvantages of using Pedemoters (objective) to assess physical activity?

Answer 4

• assess only one type of physical activity (walking or running)
• cannot record or store data in real time
• can’t record magnitude of movement
• can provide an estimate of energy expenditure however this data is based on adults and is unsuitable to apply to children

Question 5

What are the advantages of using direct observation (objective) to assess physical activity?

Answer 5

• excellent qualitative and quantitative data
• collection of contextual information
• computer software data collection and analysis is simpler

Question 6

What are the disadvantages of using direct observation (objective) to assess physical activity?

Answer 6

• difficult to use with large populations
• intrusive
• labour intensive and time consuming
• presence of observer or camera can result in bias behaviour of participants (reactivity)

Question 7

What are the advantages of using recall surveys (subjective) to assess physical activity?

Answer 7

• assesses physical activity across multiple domains including leisure, household, Active transport and occupation

Question 8

What are the disadvantages of using recall surveys (subjective) to assess physical activity?

Answer 8

• social desirability bias (over-exaggerating the truth to look better)
• children under 10 and some elderly people have limited capacity to recall specific details accurately due to cognitive limitations

Question 9

What are the advantages of using diaries (subjective) to assess physical activity?

Answer 9

• capture qualitative and quantitative data
• cost effective for large scale studies
• low burden on participant
• administered quickly and easily

Question 10

What are the disadvantages of using diaries (subjective) to assess physical activity?

Answer 10

• unsuitable for kids under 10 due to cognitive limitations
• validity problems associated with social desirability bias, memory limitations and misinterpretation of physical activity
• some elderly people have cognitive limitations

Question 11

National Physical Activity Guidelines:

What are the NPAG’s for children 0-5 years?

Answer 11

Physical:

• infants 0-1 years should engage in floor based Olay
• toddlers 1-3 years and preschoolers 3-5 years should be physically active for 3 hours spread throughout the day

Sedentary:

• kids under 2 should watch no television or electronic media
• infants, toddlers, preschoolers must not be sedentary or inactive for more than an hour at a time (except for sleeping)

Question 12

National Physical Activity Guidelines:

What are the NPAG’s for children 5-12 years AND youth 12-18 years?

Answer 12

Physical: 60 minutes of MVPA per day
Sedentary: no more than 2 hours using electronic media (TV, Internet, computer) for entertainment unless it’s educational

Question 13

National Physical Activity Guidelines:

What are the NPAG’s for adults 18-65 years?

Answer 13

• be active everyday
• accumulate 30 minutes of MVPA most (5) preferably all days of the week
• gain some regular extra vigorous physical activity for extra health and fitness

Question 14

National Physical Activity Guidelines:

What are the NPAG’s for older adults 18-65 years?

Answer 14

Physical:

• incorporate fitness, strength, balance and flexibility
• 30 minutes of MVPA most (5) preferably all days
• those just starting or have stopped physical activity start at an easily manageable level and build up to the recommended amount
• cater physical activity to individuals capability (age)

Question 15

National Physical Activity Guidelines:

What are the NPAG’s for overweight or obese children and youth?

Answer 15

Physical:

• more physical activity than is currently being engaged in
• prescription based on age-appropriate activity

Question 16

National Physical Activity Guidelines:

What are the NPAG’s for overweight or obese adults?

Answer 16

Physical:

• 60 minutes of physical activity per day
• once weight is lost accumulate 60-90 minutes if activity oer day to avoid weight regain