Week 2 - Physical Activity and Public Health Flashcards
what is energy imbalance?
more calorie intake than calorie expenditure
what are diseases of the developed world?
obesity, type II diabetes and cardiovascular disease
The WHO report says inactivity is the x rated cause of mortality
4th
what cost does obesity have on the economy?
53.8 billion in direct healthcare and 13.1 billion in productivity loss
what is the correlation between sedentry lifestyle/ obesity and vehicle miles driven?
linearly exponential
what is the correlation between sedentry lifestyle/ obesity and vehicle miles driven?
linearly exponential
what is BMR?
basal metabolic rate
what does basal metabolic rate mean?
the energy required for our bodies to operate at a basic level
how much energy is needed to maintain BMR?
1500-1700kcal a day
what is DIT?
diet induced thermogenesis
what is diet induced thermogenesis?
energy expenditure of absorption of food/ maintaining body temp
what energy is needed to maintain DIT?
200-250kcal/day
what is NEAT?
non-exercising active thermogenesis
what is non-exercising active thermogenesis?
Physical activities of daily life which are not for the purpose of improving fitness
what energy is involved in NEAT?
75-120kcal
what is exercise?
intentional planned structured activity to improve health and fitness
what is the equation for estaimating total energy expenditure?
TEE = RMR X(1 + Activity Multipler)
what is the respiratory exchange ratio?
a measure of energy expenditure
what exercise burns more fat than carbohydrates?
running slowly
what is a mans best medicine?
walking
what were the PA guidelines in 2007 advised by ACSM and HA?
30 mins moderate PA 5 times a week or 20 mins vigorous exercise 3 times a week
what were the PA guidelines in 2008 advised by USDHHS?
150 minutes a week of moderate PA or 75 vigorous, spread throughout thr week
what is whole room calorimetry?
a labratory methof of measuring energy expended from the body via breakdown of oxygen and loss of heat
what is doubly labelled water?
labratory method of measuring energy expenditure - ingestion of water isotopes, determine CO2 loss from body by urine sample
what is indirect calorimetry?
lab method to measure VO2 max
what are METs?
metabolic equivalents
what is the advised EE weekly in terms of METs?
high PA - 1500/3000 METs
moderate - 600METs
what is 1 MET?
equal to the energy you expend at rest
what is considered vigorous EE in terms of METs?
> 6 METs
What is considered moderate EE in terms of METs?
3-6METs
what is considered sedentary behaviour in terms of METs?
0.9-1.5 METs
what is the 4th leading cause of death?
inactivity
what are the stats for obesity of 3 year olds?
1 in 4 are obese
how many METs a week is needed to see a decrease in mortality risk?
600METs
what is the science of successful aging?
maintaining physical function and cognitive function while minimising risk of disease via exercise
what is the science of successful aging?
maintaining physical function and cognitive function while minimising risk of disease via exercise
