Bird Marie-Louise, Hill Keith, Ball Madeleine, Williams Andrew D
School of Human Life Sciences, University of Tasmania, Launceston, Tasmania, 7250 Australia.
J Aging Phys Act. 2009 Oct;17(4):444-54. doi: 10.1123/japa.17.4.444.
This research explored the balance benefits to untrained older adults of participating in community-based resistance and flexibility programs. In a blinded randomized crossover trial, 32 older adults (M = 66.9 yr) participated in a resistance-exercise program and a flexibility-exercise program for 16 weeks each. Sway velocity and mediolateral sway range were recorded. Timed up-and-go, 10 times sit-to-stand, and step test were also assessed, and lower limb strength was measured. Significant improvements in sway velocity, as well as timed up-and-go, 10 times sit-to-stand, and step test, were seen with both interventions, with no significant differences between the 2 groups. Resistance training resulted in significant increases in strength that were not evident in the flexibility intervention. Balance performance was significantly improved after both resistance training and standing flexibility training; however, further investigation is required to determine the mechanisms responsible for the improvement.
本研究探讨了参与社区抗阻和柔韧性训练项目对未经训练的老年人的平衡能力的益处。在一项双盲随机交叉试验中，32名老年人（平均年龄66.9岁）分别参与了为期16周的抗阻训练项目和柔韧性训练项目。记录了 sway速度和左右 sway范围。还评估了计时起立行走测试、10次坐立测试和步速测试，并测量了下肢力量。两种干预措施均使 sway速度以及计时起立行走测试、10次坐立测试和步速测试有显著改善，两组之间无显著差异。抗阻训练使力量显著增加，而柔韧性训练中未出现这种情况。抗阻训练和站立柔韧性训练后平衡能力均显著提高；然而，需要进一步研究以确定导致这种改善的机制。
