KINESIOL 1C03 Lecture Notes - Lecture 6: Blood Pressure, Atherosclerosis, Homocysteine
19 Apr 2016
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Document Summary
Associative evidence (observational studies: occupational pa studies, leisure-time pa studies, studies of fitness. London bus study revisited confounding factors: bus drivers were overweight, conductors have lower bp. Also looked at us postal workers: people delving the mail vss people sitting in offices, found similar relationships. Fatal heart attack risk vs occupational pa: benefits plateau at 8500 kcals/wk (50%) People doing vigorous exercise during leisure time (7. 5 kcals/min: dramatically reduced risk for heart attack (2. 5x) Only people that were recently active had lower risk: compared to people who were active before and no longer active. Used a physical activity index: goes from 24 (sedentary) 120 (active for entire period) Participants with existing high cvd risk: lowest pa highest risk. A little leisure time pa has a significant reduction in risk: doing more pa doesn"t reduce the risk as much. A little pa has a significant reduction in risk: doing more pa doesn"t reduce the risk as much.
