ontario is the most obese province in canada.
what is the most obese province in canada?
ontario
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it is well established that obese individuals expend a greater amount of metabolic energy at rest and when performing some physical activity such as walking than lean individuals. added mass demands more energy to move. this is observed in a study by foster et al. in 1995 when they took 11 obese women had calculated their energy expenditure before and after weight loss. they found that after significant weight loss, the subjects expended less energy on the same task as they did when they were heavier. to determine if walking was more expensive per kilogram of body mass and if obese individuals preferred walking speeds would be slower, browning and kram sought to characterize the metabolic energy obese females would expend while walking across differing speeds. they found that walking for obese women was 11% more expensive per kilogram of body mass than lean individuals and that the obese women preferred to walk at a similar speed as the lean individuals that minimized their gross energy cost per distance. wanting to look at metabolic rates of obese men compared to obese women and determine if the adipose distribution (gynoid vs. android) differing between the sexes play a role in energy expenditure, browning et al. observed class ii obese males and females walking across differing speeds. they found that standing metabolic rate when normalized for body weight was ~20% less for obese people (more adipose tissue and less metabolically active tissue), but that metabolic rates during walking were ~10% greater per kilogram body mass for obese individuals when compared to lean. these researchers also found that increased thigh mass and adipose distribution did not matter, overall body composition of percent body fat was related to net metabolic rate. therefore, obese individuals are using more metabolic energy than their lean counterparts when walking at the same speed.
obesity and walking