Kyryliuk Rebecca, Baruth Meghan, Wilcox Sara
Dept of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC.
J Phys Act Health. 2015 May;12(5):659-65. doi: 10.1123/jpah.2013-0220. Epub 2014 Jun 4.
Understanding predictors of weight loss can assist in developing targeted evidence-based programs to reduce obesity in faith-based settings. The purpose of this study was to examine predictors of weight loss for a sample of African-American women taking part in in a church-based study.
Participants (N = 350) completed physical assessments and comprehensive surveys at baseline and 15 months later. Analyses examined baseline variables and change in variables from baseline to posttest, as predictors of ≥ 5% weight loss at posttest. Demographic, health-related, and behavioral variables were examined.
Lower baseline stress predicted greater likelihood of weight loss. Increased leisure-time physical activity (LTPA) from baseline to posttest was predictive of greater weight loss. The odds of ≥ 5% weight loss was 38% lower for every 1-point increase in baseline stress (OR = 0.62, CI = 0.39, 0.98, P = .04) and 6% greater for every 1-hour increase in posttest LTPA (OR = 1.06, CI = 1.0, 1.12, P = .049).
Increased LTPA appears to be an independent predictor of modest but meaningful reductions in weight among African-American women. African-American women reporting higher levels of stress at baseline may require more intense strategies emphasizing increased LTPA to lose weight.
了解体重减轻的预测因素有助于制定有针对性的循证计划,以减少基于宗教场所环境中的肥胖现象。本研究的目的是调查参与一项基于教会的研究的非裔美国女性样本体重减轻的预测因素。
参与者(N = 350)在基线时和15个月后完成了身体评估和综合调查。分析检查了基线变量以及从基线到测试后变量的变化,作为测试后体重减轻≥5%的预测因素。对人口统计学、健康相关和行为变量进行了检查。
较低的基线压力预示着体重减轻的可能性更大。从基线到测试后休闲时间身体活动(LTPA)的增加预示着更大程度的体重减轻。基线压力每增加1分,体重减轻≥5%的几率降低38%(OR = 0.62,CI = 0.39,0.98,P = 0.04),测试后LTPA每增加1小时,体重减轻≥5%的几率增加6%(OR = 1.06,CI = 1.0,1.12,P = 0.049)。
休闲时间身体活动的增加似乎是非裔美国女性体重适度但有意义减轻的一个独立预测因素。在基线时报告压力水平较高的非裔美国女性可能需要更强化的策略,强调增加休闲时间身体活动以实现减重。