Ribeiro Fernando, Teixeira Fantina, Brochado Gabriela, Oliveira José
Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal.
Geriatr Gerontol Int. 2009 Mar;9(1):75-80. doi: 10.1111/j.1447-0594.2008.00500.x.
To evaluate the effects of a low cost strength training program of the dorsi- and ankle plantar flexors on muscle strength, balance and functional mobility, in elderly institutionalized subjects; and to determine the association between strength gain and balance and/or functional mobility gain.
Forty-eight volunteers were recruited and equally divided into two groups: intervention (aged 78.44 +/- 3.84 years) and control (aged 79.78 +/- 3.90 years). Both groups were tested at baseline and outcome for ankle dorsi- and plantar flexors muscle strength, balance and functional mobility. The intervention group participated in a 6-week program, three-sessions-per-week, of resisted ankle dorsi- and plantar flexion exercises using elastic bands.
In the intervention group, maximal isometric dorsi- (from 8.4 +/- 0.45 to 12.6 +/- 0.95 kg; P <or= 0.001) and plantar flexors strength (from 13.0 +/- 0.85 to 17.5 +/- 0.93 kg; P <or= 0.001), balance (from 14.6 +/- 0.54 to 22.3 +/- 1.81 cm; P <or= 0.001) and functional mobility (from 18.4 +/- 0.51 to 11.0 +/- 0.66 s; P <or= 0.001) increased significantly after the 6-week strength training program. In the control group, no significant differences were detected. In the intervention group, a significant correlation between plantar flexor strength gain and balance gain was found (r = 0.826; P = 0.01).
The proposed low cost strength training of dorsi- and plantar flexors improved strength, balance and functional mobility in institutionalized elderly people; moreover, the improvement in plantar flexor strength was associated with the improvement in balance.
评估一项针对老年机构养老者的低成本背屈肌和踝关节跖屈肌力量训练计划对肌肉力量、平衡能力和功能活动能力的影响；并确定力量增加与平衡能力和/或功能活动能力增加之间的关联。
招募了48名志愿者，平均分为两组：干预组（年龄78.44±3.84岁）和对照组（年龄79.78±3.90岁）。两组均在基线和干预结束时测试踝关节背屈肌和跖屈肌的力量、平衡能力和功能活动能力。干预组参加了为期6周、每周三次的使用弹力带的抗阻踝关节背屈和跖屈练习计划。
干预组在进行为期6周的力量训练计划后，最大等长背屈肌力量（从8.4±0.45千克增加到12.6±0.95千克；P≤0.001）、跖屈肌力量（从13.0±0.85千克增加到17.5±0.93千克；P≤0.001）、平衡能力（从14.6±0.54厘米增加到22.3±1.81厘米；P≤0.001）和功能活动能力（从18.4±0.51秒增加到11.0±0.66秒；P≤0.001）均显著增加。对照组未检测到显著差异。在干预组中，发现跖屈肌力量增加与平衡能力增加之间存在显著相关性（r = 0.826；P = 0.01）。
所提出的低成本背屈肌和跖屈肌力量训练改善了机构养老老年人的力量、平衡能力和功能活动能力；此外，跖屈肌力量的改善与平衡能力的改善相关。
