Pinto Bernardine M, Stein Kevin, Dunsiger Shira
Centers for Behavioral and Preventive Medicine, The Miriam Hospital.
Behavioral Research Center, American Cancer Society.
Health Psychol. 2015 May;34(5):463-72. doi: 10.1037/hea0000120. Epub 2014 Aug 11.
Although studies have shown that physical activity (PA) can reduce some treatment-related side effects of breast cancer, there is a need to offer PA programs outside of research settings to reach more cancer survivors. We partnered with the American Cancer Society's Reach to Recovery (RTR) program to train their volunteers (breast cancer survivors) to deliver a 12-week PA intervention to other breast cancer survivors.
We conducted a randomized controlled trial to compare the PA intervention delivered by RTR volunteers (PA plus RTR) with contact control (RTR control). Eighteen RTR volunteers/coaches (Mage = 54.9 years; Mtime since diagnosis = 7.0 years) delivered the contact control condition or the PA intervention. Seventy-six breast cancer survivors in New England (Mage = 55.6 years; Mtime since diagnosis = 1.1 years) were randomized to 1 of the 2 groups. At baseline, 12 weeks (postintervention), and at 24 weeks, participants wore an accelerometer for 7 days, were interviewed about their PA, and reported their motivational readiness for PA.
Adjusted, mixed-effects longitudinal regression models showed significant group differences favoring the PA plus RTR group in minutes of moderate to vigorous PA at 12 weeks (Mdifference = 103 min/week, p < .001) and at 24 weeks (Mdifference = 34.7 min/week, p = .03). Results were corroborated with significant group differences in accelerometer data favoring the PA plus RTR group at both time points.
Peer volunteers were able to significantly increase PA among cancer survivors relative to contact control. Partnerships with existing volunteer programs can help to widen the reach of behavioral interventions among cancer survivors. (PsycINFO Database Record
尽管研究表明体育活动（PA）可以减轻乳腺癌一些与治疗相关的副作用，但仍需要在研究环境之外提供体育活动项目，以惠及更多癌症幸存者。我们与美国癌症协会的“康复援助”（RTR）项目合作，培训其志愿者（乳腺癌幸存者）为其他乳腺癌幸存者提供为期12周的体育活动干预。
我们进行了一项随机对照试验，将RTR志愿者提供的体育活动干预（体育活动加RTR）与接触控制组（RTR对照组）进行比较。18名RTR志愿者/教练（平均年龄=54.9岁；自确诊以来的平均时间=7.0年）实施接触控制组或体育活动干预。新英格兰地区的76名乳腺癌幸存者（平均年龄=55.6岁；自确诊以来的平均时间=1.1年）被随机分为两组中的一组。在基线、12周（干预后）和24周时，参与者佩戴加速度计7天，接受关于其体育活动的访谈，并报告他们参与体育活动的动机准备情况。
调整后的混合效应纵向回归模型显示，在12周（平均差异=103分钟/周，p<.001）和24周（平均差异=34.7分钟/周，p=.03）时，支持体育活动加RTR组的中度至剧烈体育活动分钟数存在显著的组间差异。加速度计数据在两个时间点均支持体育活动加RTR组，这一结果证实了上述结论。
与接触控制组相比，同伴志愿者能够显著提高癌症幸存者的体育活动水平。与现有志愿者项目的合作有助于扩大行为干预在癌症幸存者中的覆盖范围。（PsycINFO数据库记录）
