The Prevalence Of Nonalcoholic Steatohepatitis (NASH) Across Levels Of Cardiorespiratory Fitness In Men

Church, Tim; Jordan, Alex N.; Priest, Elisa L.; LaMonte, Micheal J.; Kuk, Jennifer L.; Ross, Robert; Blair, S. N.

doi:10.1097/00005768-200505001-01102

Cited by 1 publication

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“…30 minutes on all or most days of the week (15)) are associated with reduction in abdominal obesity, or whether increasing exercise energy expenditure is associated with reductions in abdominal obesity in a dose-response manner.…”

Section: Changes In Ct Variables In Response To 6 Months Of Exercise mentioning

confidence: 99%

“…There are currently several exercise recommendations for attaining health benefits ranging from as little as 20 minutes, 3 or more times a week to as much as 60 minutes of daily moderate intensity physical activity (15,(170)(171)(172). However, based on the limited data available from randomized controlled trials, the minimal amount of exercise required to elicit a reduction in abdominal obesity is largely unknown.…”

Section: Dose Response Relationship Between Exercise and Obesity Redumentioning

confidence: 99%

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Associations between abdominal adiposity, exercise, morbidity, and mortality

Kuk

2007

Appl. Physiol. Nutr. Metab.

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The increasing prevalence of abdominal obesity worldwide poses a serious public health problem and thus presents a target for research designed to improve the assessment or treatment of abdominal obesity. Specifically, the first study in this thesis investigated the influence of age and gender on visceral (VAT) and abdominal (ASAT) subcutaneous adipose tissue for a given waist circumference (WC) in 481 men and women varying widely in age and body mass index (BMI). Significant gender differences in VAT and ASAT for a given WC were observed; however, only the relationship between WC and VAT was substantially influenced by age. The second study examined whether the associations between VAT, ASAT, and the metabolic syndrome (MetS) were altered depending on the measurement methodology used to assess VAT and ASAT. The odds ratio (OR) for MetS was higher for total VAT volume (OR = 7.26), and for partial volumes at T12–L1 (OR = 7.46) and L1–L2 (OR = 8.77) compared with the classic L4–L5 (OR = 3.94) measurement. The OR for MetS was not substantially different among the ASAT measures (OR∼2.6). Measurement site for VAT, but not ASAT, has a substantial influence on the magnitude of the association with MetS. The third study examined the independent associations between VAT, ASAT, liver fat, and all-cause mortality in 291 men (97 decedents and 194 controls, mortality follow-up of 2.2 ± 1.3 y). In a model including VAT, ASAT, liver fat, age, and length of follow-up, only VAT (1.93 (1.15–3.23)) remained a significant predictor of mortality. We concluded that VAT is a strong, independent predictor of all-cause mortality in men. The purpose of the final study was to determine the effect of aerobic exercise dose (energy expenditure) on WC in sedentary, overweight or obese postmenopausal women (n = 424). The women were randomly assigned to a control group or one of three aerobic exercise groups that exercised at energy expenditures of 4, 8, or 12 kcal·kg body mass–1·week–1. On comparison with controls, there were significant reductions in WC in the exercise groups (~3 cm, p < 0.05), which were independent of weight loss. However, the amount of exercise performed was not associated with reductions in WC in a dose-dependent manner.

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Section: Changes In Ct Variables In Response To 6 Months Of Exercise mentioning

confidence: 99%