Last data update: May 13, 2024. (Total: 46773 publications since 2009)
Records 1-2 (of 2 Records) |
Query Trace: Powell KE[original query] |
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Physical activity: Cornucopia and conundrums
Powell KE , Blair SN . Kinesiol Rev (Champaign) 2019 8 (1) 4-10 The number and scope of established health-related benefits from physical activity continue to expand. Notable recent additions include improved weight status and bone health in children 3-5 years of age, prevention of excessive weight gain among adults, reduced risk of dementia, and improved cognition and a variety of other brain-health benefits. Greater flexibility in receiving health benefits is also apparent. No threshold of moderate to vigorous physical activity (MVPA) must be exceeded for benefits to accrue; small increments by individuals performing little to no MVPA produce larger reductions in risk than similarly sized increments in individuals already performing greater amounts of MVPA, bouts of MVPA < 10 min in duration contribute to the accumulation of MVPA, and light-intensity physical activity can benefit individuals currently doing little or no MVPA. MVPA is indirectly related to the adverse effects of sedentary behavior. The definition of physical activity continues to be debated. |
Sport and exercise as contributors to the health of nations
Khan KM , Thompson AM , Blair SN , Sallis JF , Powell KE , Bull FC , Bauman AE . Lancet 2012 380 (9836) 59-64 Self-reported rates of participation in sport vary by country. In the UK, about 40% of men and women aged 16 years or older participate in at least one sport every week. Although few data exist to assess trends for participation in sport, there is little evidence of change in the past decade among adults. Large cohort studies suggest that such participation in sport is associated with a 20-40% reduction in all-cause mortality compared with non-participation. Randomised trials and crossover clinical studies suggest that playing sport is associated with specific health benefits. Some sports have relatively high injury risk although neuromuscular training programmes can prevent various lower extremity injuries. Clinicians can influence a large number of patients through brief interventions that promote physical activity, and encouragement toward participation in sport for some physically inactive patients qualifies as evidence-based therapy. Exercise might also be considered as a fifth vital sign and should be recorded in patients' electronic medical records and routine histories. |
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