Muti Monica, Ware Lisa J, Micklesfield Lisa K, Ramsay Michele, Agongo Godfred, Boua Palwende R, Kisiangani Isaac, Cook Ian, Gómez-Olivé Francesc Xavier, Crowther Nigel J, Kabudula Chodziwadziwa, Norris Shane A, Chikowore Tinashe
SAMRC/Wits Developmental Pathways for Health Research Unit (DPHRU), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg,South Africa.
Food and Nutrition Security Research Institute, Harare,Zimbabwe.
J Phys Act Health. 2023 Feb 6;20(3):217-225. doi: 10.1123/jpah.2022-0539. Print 2023 Mar 1.
This study aimed to explore association of self-reported physical activity domains of work, leisure, and transport-related physical activity and body mass index (BMI) in 9388 adult men and women from the Africa-Wits-INDEPTH partnership for Genomic (AWI-Gen) study in Africa. Africa-Wits-INDEPTH partnership for Genomic is a large, population-based cross-sectional cohort with participants from 6 sites from rural and urban areas in 4 sub-Saharan African countries.
A sex-stratified meta-analysis of cross-sectional data from men and women aged 29-82 years was used to assess the association of physical activity with BMI.
Overall, meeting physical activity guidelines of at least 150 minutes per week was associated with 0.82 kg/m2 lower BMI in men (β = -0.80 kg/m2; 95% confidence interval [CI], -1.14 to -0.47) and 0.68 kg/m2 lower BMI in women (β = -0.68 kg/m2; 95% CI, -1.03 to -0.33). Sex and site-specific differences were observed in the associations between physical activity domains and BMI. Among those who met physical activity guidelines, there was an inverse association between transport-related physical activity and BMI in men from Nanoro (Burkina Faso) (β = -0.79 kg/m2; 95% CI, -1.25 to -0.33) as well as work-related physical activity and BMI in Navrongo men (Ghana) (β = -0.76 kg/m2; 95% CI, -1.25 to -0.27) and Nanoro women (β = -0.90 kg/m2; 95% CI, -1.44 to -0.36).
Physical activity may be an effective strategy to curb rising obesity in Africa. More studies are needed to assess the impact of sex and geographic location-specific physical activity interventions on obesity.
本研究旨在探讨在非洲开展的非洲 - 威特沃特斯兰德大学 - 深入基因组学伙伴关系（AWI - Gen）研究中，9388名成年男性和女性自我报告的工作、休闲及交通相关身体活动领域与体重指数（BMI）之间的关联。非洲 - 威特沃特斯兰德大学 - 深入基因组学伙伴关系是一项大型的基于人群的横断面队列研究，参与者来自撒哈拉以南非洲4个国家农村和城市地区的6个地点。
对年龄在29 - 82岁的男性和女性的横断面数据进行性别分层的荟萃分析，以评估身体活动与BMI之间的关联。
总体而言，每周至少进行150分钟的身体活动与男性BMI降低0.82kg/m²相关（β = -0.80kg/m²；95%置信区间[CI]，-1.14至-0.47），与女性BMI降低0.68kg/m²相关（β = -0.68kg/m²；95%CI，-1.03至-0.33）。在身体活动领域与BMI之间的关联中观察到了性别和特定地点的差异。在达到身体活动指南的人群中，来自布基纳法索纳诺罗的男性的交通相关身体活动与BMI之间存在负相关（β = -0.79kg/m²；95%CI，-1.25至-0.33），加纳纳夫龙戈的男性的工作相关身体活动与BMI之间存在负相关（β = -0.76kg/m²；95%CI，-1.25至-0.27），纳诺罗的女性的工作相关身体活动与BMI之间存在负相关（β = -0.90kg/m²；95%CI，-1.44至-0.36）。
身体活动可能是遏制非洲肥胖率上升的有效策略。需要更多研究来评估针对性别和地理位置的身体活动干预对肥胖的影响。
