Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH.
Division of Cardiovascular Medicine, Case Western Reserve University School of Medicine, University Hospitals Harrington Heart & Vascular Institute, Cleveland, OH.
J Acquir Immune Defic Syndr. 2018 May 1;78(1):23-33. doi: 10.1097/QAI.0000000000001635.
To examine the effect of a lifestyle behavior intervention (SystemCHANGE) on physical activity and diet quality among sedentary people living with HIV (PLHIV). All participants expressed a desire to improve lifestyle health behaviors.
One hundred and seven HIV+ adults were randomized to either the intervention (6, in-person, standardized group sessions focusing on improving lifestyle behaviors) or a control condition (general advice on AHA diet and exercise guidelines). All participants wore an ActiGraph accelerometer and completed 24-hour dietary recalls at baseline, 3, and 6 months. Generalized estimating equations were used to examine intervention effects. The primary activity outcome was time spent in moderate-to-vigorous physical activity, and the primary dietary outcome was Healthy Eating Index.
Mean age was 53 years, 65% were male, and 86% African American. Approximately 90% attended at least half of the sessions and 60% attended 5 or more sessions. The intervention did not significantly improve our primary lifestyle behavior endpoints (P ≥ 0.05); however, intervention participants consumed fewer carbohydrates-primarily sugar-sweetened beverages-per day and lost 0.732 kg body weight compared with a 0.153 weight gain in the control group (P = 0.03).
Among sedentary PLHIV at high risk of cardiovascular disease, the SystemCHANGE intervention reduced daily carbohydrate intake and body weight, but did not increase physical activity or improve overall diet quality. Future work should identify fundamental personal, interpersonal, and contextual factors that will increase physical activity and improve overall diet quality among this population, and integrate these factors into tailored, lifestyle interventions for aging PLHIV.
研究生活方式行为干预(SystemCHANGE)对患有 HIV 的久坐人群(PLHIV)的身体活动和饮食质量的影响。所有参与者都表示希望改善生活方式健康行为。
107 名 HIV+ 成年人被随机分为干预组(6 节,针对改善生活方式行为的标准化小组课程)或对照组(关于 AHA 饮食和运动指南的一般建议)。所有参与者都佩戴了 ActiGraph 加速度计,并在基线、3 个月和 6 个月时完成了 24 小时膳食回忆。使用广义估计方程来检验干预效果。主要活动结果是中度至剧烈体力活动所花费的时间,主要饮食结果是健康饮食指数。
平均年龄为 53 岁,65%为男性,86%为非裔美国人。大约 90%的人至少参加了一半的课程,60%的人参加了 5 次或更多的课程。干预并没有显著改善我们的主要生活方式行为终点(P≥0.05);然而,与对照组相比,干预组每天摄入的碳水化合物(主要是含糖饮料)减少了 0.732 公斤,体重减轻了 0.732 公斤,而对照组的体重增加了 0.153 公斤(P=0.03)。
在心血管疾病风险较高的久坐 PLHIV 中,SystemCHANGE 干预措施减少了每日碳水化合物的摄入量和体重,但并没有增加体力活动或改善整体饮食质量。未来的工作应该确定将增加体力活动和改善这一人群整体饮食质量的基本个人、人际和环境因素,并将这些因素纳入针对老年 PLHIV 的定制生活方式干预措施中。