Evaluation of a 12-week home-based walking intervention for breast cancer survivors
Evaluation of a 12-week home-based walking intervention for breast cancer survivors
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DOI：
10.1007/s00520-006-0122-x
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发表时间：
2007-02-01
影响因子：
3.1
通讯作者：
Shintani, Ayumi
中科院分区：
文献类型：
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作者：
Matthews, Charles E.;Wilcox, Sara;Shintani, Ayumi
工作目标：对乳腺癌幸存者进行为期12周的居家步行干预，并量化干预后体力活动(PA)行为、体重和身体成分的变化。患者和方法：将处于治疗后阶段的乳腺癌幸存者随机分为干预组(n=23)和常规护理组(n=13)。通过自我报告和在研究样本(n=23)中使用加速计来评估PA。采用意向处理原则评估干预对PA行为、体重和体成分的影响。干预依从性是根据完成的运动课程相对于推荐的运动课程数量的比例来计算的，就像每周在步行日志上报告的那样。主要结果：在随机抽取的36名女性中，34名(94%)完成了研究。超过12周的平均干预依从性为94%。干预参与者报告称，随着时间的推移，步行锻炼[+11.9代谢当量(MET)-h/周]的增加显著高于常规护理参与者(+1.7 MET-h/周，p=0.01)。活动的客观测量还表明，与常规护理参与者相比，干预参与者的活动水平随着时间的推移而增加[即计数/分钟/天和步数/天(p=0.04)]。没有观察到体重或成分的显著变化。结论：我们发现，为期12周的居家步行干预对于提高乳腺癌幸存者的短期PA水平是安全和有效的。需要未来的研究来评估短暂干预的能力，以促进维持增加的活动水平，并产生良好的生活质量和风险因素结果。
Goals of work: To evaluate a 12-week home-based walking intervention among breast cancer survivors and to quantify changes in physical activity (PA) behaviors, body weight, and body composition in response to the intervention. Patients and methods: Breast cancer survivors that were in the posttreatment period were randomized to intervention (n=23) or wait-list usual care (n=13). PA was assessed by self-report, and in a study subsample (n=23), by an accelerometer. Intention to treat principles were employed to estimate the intervention effect on PA behaviors, body weight, and body composition. Intervention adherence was calculated as the proportion of exercise sessions completed relative to the number of exercise sessions recommended, as reported each week on walking logs. Main results: Thirty-four of 36 women randomized (94%) completed the study. Average intervention adherence over 12 weeks was 94%. Intervention participants reported a significantly greater increase in walking for exercise [+11.9 metabolic equivalent ( MET)-h/week] over time than did usual care participants (+1.7MET-h/week, p=0.01). Objective measures of activity also indicated that intervention participants increased their activity levels over time as compared to usual care participants [i.e., counts/min/day and steps/day (p=0.04)]. No significant changes in body weight or composition were observed. Conclusion: We found that a 12-week home-based walking intervention was safe and effective for increasing short-term PA levels in breast cancer survivors. Future studies are needed to assess the ability of brief interventions to facilitate the maintenance of increased activity levels and to produce favorable quality of life and risk factor outcomes.