Effects of Weight Status and Barriers on Physical Activity Adoption Among Previously Inactive Women
Effects of Weight Status and Barriers on Physical Activity Adoption Among Previously Inactive Women
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DOI：
10.1038/oby.2011.87
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发表时间：
2011-11-01
期刊：
影响因子：
6.9
通讯作者：
Marcus, Bess H.
中科院分区：
文献类型：
--
作者：
Napolitano, Melissa A.;Papandonatos, George D.;Marcus, Bess H.
本研究调查了自我报告的身体活动（PA）的障碍，以及他们对PA行为变化的影响，在3个月和12个月的280名以前不活跃的妇女参加了PA促进试验。还检查了基线体重状态对PA行为变化的基线屏障的影响。在基线和12个月时，肥胖妇女报告的PA障碍显著高于正常和超重妇女（P < 0.05）。与正常和超重的参与者相比，肥胖参与者在基线时更有可能升高的个体障碍是感觉超重，感觉自我意识，报告轻微疼痛和缺乏自律。此外，体重状况从基线到第3个月（P < 0.05）调节PA障碍对PA行为变化的影响，但到第12个月（P = 0.637），肥胖参与者报告高障碍比低障碍少达到70分钟/周（P < 0.05）。最后，屏障（高与低）和体重状态（肥胖与正常）之间的相互作用显示，PA屏障对肥胖参与者的有害PA影响为122.5分钟/周（95%置信区间（CI）= 15.7，229.4; P < 0.05），低于其对正常体重参与者的影响。这些结果表明，对于肥胖妇女，PA障碍有量化的影响PA的行为改变。这项研究对未来减肥和PA干预措施的设计有影响，这表明PA障碍的全面评估是适当定制行为PA干预措施的先决条件。
This study examined self-reported physical activity (PA) barriers, and their effects on PA behavior change at 3 and 12 months among 280 previously inactive women enrolled in a PA promotion trial. Effect modification of baseline barriers by baseline weight status on PA behavior change was also examined. At baseline and month 12, obese women reported significantly greater PA barriers compared with normal and overweight women (P < 0.05). Individual barriers that were more likely to be elevated for obese vs. normal and overweight participants at baseline were feeling too overweight, feeling self-conscious, reporting minor aches and pains, and lack of self-discipline. Also, weight status moderated the effect of PA barriers on PA behavior change from baseline to month 3 (P < 0.05), but not to month 12 (P = 0.637), with obese participants reporting high barriers achieving 70 min/week fewer than those with low barriers (P < 0.05). Finally, the interaction between barriers (high vs. low) and weight status (obese vs. normal), shows PA barriers had a detrimental PA effect among obese participants that was 122.5 min/week (95% confidence interval (CI) = 15.7, 229.4; P < 0.05) lower than their effect on normal-weight participants. These results suggest that for obese women, PA barriers have quantifiable effects on PA behavior change. This study has implications for the design of future weight loss and PA interventions, suggesting that a comprehensive assessment of PA barriers is a prerequisite for appropriate tailoring of behavioral PA interventions.