Introduction Lectures Flashcards
Describe the 2 way arrow between physical fitness and health.
Could be more active because feel healthy, or people who are physically fit have better health.
What did the Harvard Health Study 1986 primarily find?
Mortality decreased with increase physical activity
What percent less risk of mortality did the Harvard Health study 1986 find, and how many Kcal per week needed to be expended for this to happen?
27% - from expending >2000Kcal per week.
Walking at 4mph burned how many Kcal per hour in the Harvard Alumni Study follow up 1995? Which meant how many hours needed to be walking per week?
400Kcal = 5 hrs walking per week.
In the Aerobic centre longitudinal study (1989), where was the biggest drop in mortality seen?
moving from lowest fit to below average fit.
In the Aerobic centre longitudinal study, how much more risk do low fit men, and low fit women have for mortality compared to high fit?
Men = 3.3 times more risk Women = 4.7 times more risk
True or False:
Inactive to become active is still better than always inactive?
True
Can you store fitness? So if you become unfit it doesn’t matter?
NO - if you become unfit it is going to be worse for you.
How many times more CHD death is there for sedentary vs. active individuals and low vs. high non-occupational PA?
2 times
What % decline in mortality is seen with every 1 MET increase in aerobic fitness?
10-15%
Below what number MET is the worst prognosis?
5 METS
What did lear et al, Lancet 2017 find about mortality?
The more active = the lower mortality
What % reduction in mortality did Nocon et al 2008 find for active individuals?
35%
Who found there to be better health in people who keep physical activity?
Riener et al, 2013
True or false?
The greatest health benefits are achieved when increasing PA levels from sedentary to moderately active?
True
Each 10 minutes of MVPA results in what % mortality risk reduction?
10%
If you achieve 150 minutes of MVPA then how much % less risk reduction is there?
30-40%
True or false?
Physically fit met with existing chronic conditions have a lower risk of mortality compared with men who are unfit.
True
What does being fit give you protection against?
Being poorly.
High fit with hypertension had … relative risk of low fit?
0.5
High fit with diabetes mellitus had … relative risk of low fit without DM.
0.5
By what % does regular PA reduce your risk of cardiovascular disease by up to?
35%
Can vigorous activity be better for health than moderate?
Yes
Why may a more frequent (not weekend warrior) be better?
Better for blood sugar control
