This recommends that individuals accumulate 20-60 minutes or more of moderate intensity (∼45%-70% of VO2max) exercise on most days of
the week.7 If weight loss is the goal, exercise, even when prescribed without associated restriction of energy intake, confers a reduction in body weight in an apparent dose-response fashion with exercise volume.43 Greater amounts of exercise may be needed for most individuals to induce significant weight loss or prevent weight being regained in the long term. The consensus Panobinostat mw suggests that little weight loss is achieved with <150 minutes of exercise per week, modest (∼2-3 kg) losses are attainable with >150 minutes/week (with an energy equivalent of ∼1200-2000 kcal/week), and moderate weight BMN 673 in vivo loss (∼5-7.5 kg) often results from 225-420 minutes/week (∼1800-3300 kcal) of aerobic activity.43 These targets can be achieved using a variety of exercise modalities, with the outcome
of cardiorespiratory fitness being a reliable and easily quantifiable endpoint measure of structured aerobic exercise. Although there is currently no longitudinal evidence available concerning its benefit in NAFLD, progressive resistance training may be useful for the management of obesity-related comorbidities, particularly insulin resistance.43 The benefits of nonstructured leisure-time PA, including reduced sedentary time, are becoming increasingly recognized and have, in some studies, shown efficacy in improving cardiometabolic
risk and promoting weight loss.43 Clear guidelines for such “lifestyle PA” are lacking, and reliable measurement, particularly of intensity, is more difficult. PA habits and adherence can be estimated by questionnaires, pedometers, and accelerometers (reviews of which can be found elsewhere27), and the latter may further promote adherence to PA.27 A major consideration for lifestyle therapy is that adherence to diet and PA regimens MCE公司 can be poor in a clinical setting, for example.8, 9 The diabetes prevention studies provide important insights regarding behavior therapy to target PA adherence. Although different approaches were used, the intervention arms in all studies included behavioral strategies for reinforcing prescribed changes in PA, dietary intake, or a combination of the two, and included initial lifestyle counseling sessions and ongoing regular contact, self-selection of goals and PA strategies, and recording of participation, which is known to enhance adherence.8, 9 The success of these interventions and their relatively low drop-out rate (<10%) is partly attributable to the way in which lifestyle modification was reinforced. Common to all interventions was individual counseling, goal setting, regular assessment (every 3-12 months), and multiple contacts (∼6-20 times per year) with staff, an approach mirrored in some of the intervention studies in NAFLD.
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