Tokyo Denki University, School of Science and Technology for Future Life, Inzai-shi, Chiba, Japan.
J Physiol Anthropol. 2010;29(3):95-101. doi: 10.2114/jpa2.29.95.
Strength training has been reported as a potentially useful exercise to improve psychological aspects in the elderly, but its effects remain controversial. This study investigated the effectiveness of strength training conducted twice a week for 12 weeks for improving health-related quality of life (HRQOL) and executive cognitive function. The study was a single-blind randomized controlled trial with assessments before and after intervention. HRQOL and executive function were assessed using the SF-36 Health Status Survey and a computerized neuro-cognitive assessment using task-switch reaction time trials, respectively. Subjects comprised 119 participants > or =65 years old, randomized to either strength training (n=65) or health education classes (controls, n=54). The strength training program was designed to strengthen the large muscle groups most important for functional activities and to improve balance. The effects of the intervention on the eight dimensions of the SF-36 in the control and training groups were analyzed. Only the mental health scale of the SF-36 was significantly improved for the training group compared with controls after 12 weeks. Task-switch reaction time and correct response rate remained unchanged. Short-term strength training might have modest positive effects on HRQOL, although this training period may not be sufficient to affect executive function in relatively healthy older people.
力量训练被报道为一种可能有用的锻炼方式，可以改善老年人的心理方面，但它的效果仍然存在争议。本研究调查了每周进行两次、持续 12 周的力量训练对改善健康相关生活质量（HRQOL）和执行认知功能的效果。该研究是一项单盲随机对照试验，在干预前后进行评估。HRQOL 和执行功能分别使用 SF-36 健康状况调查和计算机神经认知评估中的任务转换反应时间试验进行评估。受试者包括 119 名年龄≥65 岁的参与者，随机分为力量训练组（n=65）或健康教育课程组（对照组，n=54）。力量训练计划旨在增强对功能活动最重要的大肌肉群，并改善平衡。分析了干预对对照组和训练组 SF-36 的八个维度的影响。仅在 12 周后，训练组的 SF-36 心理健康量表与对照组相比有显著改善。任务转换反应时间和正确反应率保持不变。短期力量训练可能对 HRQOL 有适度的积极影响，尽管对于相对健康的老年人来说，这种训练时间可能不足以影响执行功能。
