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• W3043892850 abstract "Background: People with HIV (PWH) are at an increased risk for adiposity and sarcopenia, despite effective antiretroviral therapy. Our objective was to compare the effects of prescribed exercise on body composition in older PWH and uninfected controls. Setting: Academic medical center. Methods: Sedentary PWH (n = 27) and uninfected controls (n = 28) aged 50–75 years completed 24 weeks of cardiovascular and resistance exercise. Participants completed 12 weeks of moderate-intensity exercise and then were randomized to moderate- or high-intensity exercise for 12 additional weeks. Total lean (LEAN) and fat mass (FAT), and visceral adipose tissue area (VAT) were measured using dual-energy x-ray absorptiometry at baseline and 24 weeks; baseline and intervention differences were compared by HIV serostatus using multivariable regression analyses adjusted for baseline values, age, and exercise adherence. Results: At baseline, PWH had significantly lower FAT ( P = 0.003), but no significant differences in LEAN or VAT compared with controls ( P > 0.20). Changes over 24 weeks were not significantly different by HIV serostatus, although controls tended to gain more LEAN (0.8 kg; range, 0–1.6 kg; P = 0.04] than PWH (0.6 kg; range, −0.2 to 1.4 kg; P = 0.12) and lose less FAT and VAT (controls: (−0.9 kg; range, −1.8 to 0.0 kg and −10.3 cm 2 ; range, −19.6, 1.0) cm 2 ; both P = 0.03 vs PWH: −2.0 kg; range, −2.9 to −1.1 kg and −17.7 cm 2 ; range, −27.1 to −8.2 cm 2 ; both P < 0.001). Exercise intensity differences were not apparent for LEAN, FAT, or VAT. Conclusions: Exercise reduced total and visceral fat in older PWH and controls. Minimal gains in lean mass suggest that greater emphasis on resistance exercise may be needed to more effectively increase muscle in PWH." @default.
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• W3043892850 date "2020-11-01" @default.
• W3043892850 modified "2023-10-09" @default.
• W3043892850 title "Body Composition Changes in Response to Moderate- or High-Intensity Exercise Among Older Adults With or Without HIV Infection" @default.
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• W3043892850 doi "https://doi.org/10.1097/qai.0000000000002443" @default.
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