老年人每周一次与每周两次力量训练的比较。
Comparison of once-weekly and twice-weekly strength training in older adults.
作者信息
DiFrancisco-Donoghue J, Werner W, Douris P C
机构信息
Academic Health Care Center of The New York College of Osteopathic Medicine, Old Westbury, New York, USA.
出版信息
Br J Sports Med. 2007 Jan;41(1):19-22. doi: 10.1136/bjsm.2006.029330. Epub 2006 Oct 24.
BACKGROUND
Strength training has been shown to benefit the health and function of older adults.
OBJECTIVE
To investigate whether one set of exercises performed once a week was as effective in increasing muscle strength as training twice a week.
METHODS
18 subjects (7 women and 11 men) aged 65-79 years were randomly assigned to two groups. Both groups performed one set of exercises to muscular fatigue; group 1 trained 1 day/week and group 2 trained 2 days/week on three lower and three upper body exercises for 9 weeks. The data were analysed using a mixed model 2 x 2 analysis of variance.
RESULTS
A significant main effect of time (p<0.001), but not group, on one-repetition maximum scores was observed. No significant interaction was observed between time and group and therefore no difference in strength changes between training once a week versus twice a week after 9 weeks.
CONCLUSIONS
One set of exercises performed once weekly to muscle fatigue improved strength as well as twice a week in the older adult. Our results provide information that will assist in designing strength-training programmes that are more time and cost efficient in producing health and fitness benefits for older adults.
背景
力量训练已被证明对老年人的健康和功能有益。
目的
研究每周进行一次一组练习在增加肌肉力量方面是否与每周训练两次同样有效。
方法
将18名年龄在65 - 79岁的受试者（7名女性和11名男性）随机分为两组。两组都进行一组练习直至肌肉疲劳；第1组每周训练1天，第2组每周训练2天，进行三项下肢和三项上肢练习，共9周。使用混合模型2×2方差分析对数据进行分析。
结果
观察到时间对一次重复最大重量得分有显著的主效应（p<0.001），但组间无显著差异。时间和组之间未观察到显著的交互作用，因此9周后每周训练一次与每周训练两次在力量变化上无差异。
结论
在老年人中，每周进行一次一组直至肌肉疲劳的练习与每周进行两次的效果一样能增强力量。我们的结果为设计更具时间和成本效益的力量训练计划提供了信息，这些计划能为老年人带来健康和健身益处。
Zotero 插件