In December 26, 2024, JAMA Network Open published the results of a meta-analysis aimed to investigate the association of varying intensities and durations of aerobic exercise with adiposity measures in adults with obesity or overweight.
This meta-analyses included 116 randomized clinical trials involving 6880 adults with overweight or obesity (4199 [61%] female; mean [SD] age, 46 [13] years).
Each 30 minutes per week of aerobic exercise was associated with reduced body weight by 0.52 kg (95% CI, −0.61 to −0.44 kg), waist circumference by 0.56 cm (95% CI, −0.67 to −0.45 cm), body fat percentage by 0.37% (95% CI, −0.43% to −0.31%; n = 65 trials, GRADE = moderate), as well as the areas of visceral (mean difference, −1.60 cm2 [95% CI, −2.12 to −1.07 cm2]) and subcutaneous (mean difference, −1.37 cm2 [95% CI, −1.82 to −0.92 cm2]) adipose tissues. Dose-response meta-analyses indicated that body weight, waist circumference, and body fat measures decreased linearly or monotonically in association with increasing duration of aerobic exercise to 300 minutes per week, with aerobic exercise lasting 150 minutes per week at moderate to vigorous intensities resulting in clinically important reductions in waist circumference and body fat.
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2828487
