Seguin Rebecca A, Folta Sara C, Nelson Miriam E, Hanson Karla L, LaCroix Andrea Z
College of Human Ecology, Division of Nutritional Sciences, Cornell University, 412 Savage Hall, Ithaca, NY 14853, USA.
Friedman School of Nutrition Science and Policy, Tufts University, 150 Harrison Avenue, Boston, MA 02111, USA.
J Environ Public Health. 2017;2017:4372048. doi: 10.1155/2017/4372048. Epub 2017 Mar 2.
. The repeated loss and regain of body weight, referred to as weight cycling, may be associated with negative health complications. Given today's obesity epidemic and related interventions to address obesity, it is increasingly important to understand contexts and factors associated with weight loss maintenance. This study examined BMI among individuals who had previously participated in a 12-week, evidence-based, nationally disseminated nutrition and physical activity program designed for overweight and obese middle-aged and older women. . Data were collected using follow-up surveys. Complete height and weight data were available for baseline, 12-week program completion (post-program) and follow-up (approximately 3 years later) for 154 women (response rate = 27.5%; BMI characteristics did not differ between responders and nonresponders). . Mean BMI decreased significantly from baseline to post-program (-0.5, < 0.001) and post-program to follow-up (-0.7, < 0.001). Seventy-five percent of survey respondents maintained or decreased BMI post-program to follow-up. Self-efficacy and social support for healthy eating behaviors (but not physical activity) were associated with BMI maintenance or additional weight loss. . These findings support the durability of weight loss following participation in a relatively short-term intervention.
体重的反复增减,即所谓的体重循环,可能与负面健康并发症相关。鉴于当今的肥胖流行情况以及为解决肥胖问题而采取的相关干预措施,了解与维持体重减轻相关的背景和因素变得越来越重要。本研究调查了曾参与一项为期12周、基于证据、在全国范围内推广的针对超重和肥胖中老年女性的营养与体育活动项目的个体的体重指数。通过随访调查收集数据。154名女性有完整的身高和体重数据用于基线、12周项目结束时(项目后)以及随访(约3年后)(应答率 = 27.5%;应答者和非应答者的体重指数特征无差异)。平均体重指数从基线到项目后显著下降(-0.5,<0.001),从项目后到随访也显著下降(-0.7,<0.001)。75%的调查受访者在项目后到随访期间维持或降低了体重指数。对健康饮食行为(而非体育活动)的自我效能感和社会支持与体重指数维持或进一步减重相关。这些发现支持了参与相对短期干预后体重减轻的持续性。