Sjostrom, "Physical activity but not
energy expenditure is reduced in obese adolescents: a case-control study," The American Journal of Clinical Nutrition, vol.
Total daily
energy expenditure depends largely on the type, intensity and duration of physical activity; these activities play an important role in weight, physical conditioning and cardiac rehabilitation [15].
Anaerobic
energy expenditure and mechanical efficiency during exhaustive leg press exercise.
Energy expenditure (kcals) was determined using the V[O.sub.2] data, assuming a constant of 5 kcal x [L.sup.-1] of [O.sub.2] consumed.
As primary outcome measures, the cohorts were assessed for their physical activity levels (monitored continuously by accelerometry) and resting
energy expenditure (REE).
The results challenge current models of obesity that suggest Western lifestyles lead to decreased
energy expenditure. The rate at which people across a wide range of lifestyles burn calories is approximately the same.
Our findings further support a role for estrogen in regulating body weight and
energy expenditure, suggesting a benefit of estrogen supplementation in postmenopausal women."
Lifestyle was not shown to be a contributing factor to one's total daily
energy expenditure. In fact, total
energy expenditure was remarkably consistent across global cultures and economies, with researchers concluding it is perhaps "more a product of our common genetic inheritance than our diverse lifestyles".
"There is also a greater number of properties with electric heating - the single highest contributing factor to
energy expenditure - and almost certainly a greater proportion of prepaid electricity supplies resulting from higher credit risks and unemployment factors."
The assumption of a strong association between accelerometer output and
energy expenditure during dynamic physical activity [6-7] has been well tested in the general population [4,8-9], but not in persons with MS.
The authors of this paper evaluated the effects of overconsumption of low-, normal-, and high-protein diets on weight gain,
energy expenditure, and body composition.
The objective of the study was to investigate the relationship between activity
energy expenditure, an objective measurement of total activity, and the incidence of cognitive impairment.
