The report recognized that unanswered issues exist in response to the question of how much of what type of activity is appropriate for health promotion. This needs to be considered in light of the scientific committee report from which the guidelines were developed. In other words, the benefits of engaging in VPA are attributed to the greater expenditure energy dose per unit of time, and do not relate to the intensity per se. 1, 3 – 5 Because the guidelines indicate that 75 min of VPA are equivalent to 150 min of MPA, they imply that there are little or no added health benefits of VPA other than the shorter time frame needed to expend the appropriate amount of energy. The guidelines recognize that, in comparison with vigorous physical activity (VPA), about half as many calories are expended with an equivalent duration of moderate physical activity (MPA). The key recommendation within these guidelines is that adults ‘should do at least 150 min a week of moderate-intensity, or 75 min a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity’. 2 The USA, 3 UK 4 and the World Health Organization 5 have recently published physical activity guidelines that provide the public with targets for the amount and intensity of physical activity needed for good health. The health benefits of moderate-to-vigorous physical activity (MVPA) are well recognized by exercise scientists 1 and health-care practitioners. Physical activity, metabolic syndrome, exercise, accelerometer Introduction For instance, between 0 and 500 MET min/week of MPA the adjusted prevalence of the MetS decreased by 15.5%, whereas between 0 and 500 MET min/week of VPA the prevalence decreased by 37.1%.Ĭonclusion These cross-sectional findings suggest that VPA per se has an important role in cardiometabolic disease prevention. VPA had a greater influence on the MetS than an equivalent energy expenditure dose of MPA. Results Analyses revealed that VPA remained a meaningful predictor of the MetS after controlling for the total energy expenditure dose of MVPA such that the relative odds of the MetS was 0.28 (95% confidence interval 0.17–0.46) in the group with the highest VPA compared with the group with no VPA. ![]() Associations between physical activity and the MetS were determined using logistic regression and controlled for relevant covariates. MetS was determined using an established clinical definition. ![]() MPA and VPA were measured objectively over 7 days using Actigraph accelerometers. Methods Participants consisted of 1841 adults from the 2003–06 National Health and Nutrition Examination Survey, a representative cross-sectional study. The purpose of this study was to determine whether VPA influences the metabolic syndrome (MetS) independent of its influence on the energy expenditure dose of moderate-to-vigorous physical activity (MVPA). Background Current physical activity guidelines imply that, by comparison with moderate physical activity (MPA), the benefits of engaging in vigorous physical activity (VPA) are attributed to the greater energy expenditure dose per unit of time and do not relate to intensity per se.
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