Physical inactivity

Question 1

What is physical inactivity?

Answer 1

Behavioural pattern that reduces daily PA time; characterised by lack of PA, lack of movement, prolonged sitting, prolonged periods with no muscular activity, achieving defined exercise goals but otherwise inactive

Question 2

What is sedentarism?

Answer 2

Behavioural pattern that reduces daily PA time; characterised by low level of movement, and sitting/reclining/lying in a waking state

Question 3

Why has physical activity historically decreased?

Answer 3

When we were hunter-gatherers, natural selection favoured those with high PA and fitness, as well as having thrifty genes for storage. Now we still have thrifty genes, but no longer have the same levels of activity, leading to increased glucose and fatty acids

Question 4

How much of the US population is meeting the PA guidelines?

Answer 4

~3.2%

Question 5

How many health problems is physical inactivity associated with?

Answer 5

> 32

Question 6

How much more likely to die within the next 15 years is someone who sits for more than 6 hours a day that someone who sits less than 3?

Answer 6

40%

Question 7

How much of your daily EE does non-activity thermogenesis account for?

Answer 7

40%

Question 8

How much of your daily EE does the thermic effect of food account for?

Answer 8

10%

Question 9

How much of your daily EE does the basal metabolic rate account for?

Answer 9

60%

Question 10

What is physical fitness?

Answer 10

A set of attributes/characteristics that people have/achieve that relates to the ability to perform PA; an ability to perform daily activities with vigour; demonstration of traits + capacities that are associated w/ low risk of premature development of hypokinetic diseases

Question 11

What are the skill-related physical fitness components?

Answer 11

Agility, coordination, balance, power, reaction time, speed

Question 12

What are the health-related physical fitness components?

Answer 12

CV endurance, body composition, muscular strength, muscular endurance, flexibility

Question 13

What determines CV endurance?

Answer 13

VO2max, aerobic capacity, endurance capacity, aerobic fitness

Question 14

What influences aerobic fitness?

Answer 14

Genetics, age, PA levels

Question 15

How many steps can confer protection against developing T2DM?

Answer 15

3500 steps/day

Question 16

How many CVD-related deaths are low fitness attributable to?

Answer 16

37%