id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_mapglrvginc6zk4kbvknj3m5bu	J. Timothy Lightfoot	Why Control Activity? Evolutionary Selection Pressures Affecting the Development of Physical Activity Genetic and Biological Regulation	2013.0	10	.pdf	application/pdf	8067	746	59	The literature strongly suggests that daily physical activity is genetically and biologically regulated. of activity in hunter/gatherers, pretechnology farmers, and modern Western societies and considers the potential of each to between pretechnology farmers and hunter-gatherer populations does not show significant differences in daily energy have been a selection pressure in the evolution of physical activity control mechanisms, comparisons of required daily activity (i.e., duration of activity) in nontechnology dependent Table 1: Physical activity energy expenditures of various hunter/gatherer populations. Table 2: Physical activity energy expenditures of various agricultural populations. Figure 3: Potential selection pressures on activity regulation in humans and possible future effects of food abundance. hypothetical—explanation of the selection pressures influencing the evolution of physical activity regulation. W. Rowland, "The biological basis of physical activity," Medicine and Science in Sports and Exercise, vol. and environmental influences on level of habitual physical activity and exercise participation," American Journal of Epidemiology, vol. physical activity," Journal of Nutrition, vol. Physical Activity and Health, vol.	./cache/work_mapglrvginc6zk4kbvknj3m5bu.pdf	./txt/work_mapglrvginc6zk4kbvknj3m5bu.txt