Effects of Resistance Band Exercises on Lower Limb Muscle Strength and Quality of Life in Pre-frail Elderly People

doi:10.12114/j.issn.1007-9572.2019.00.457

Abstract

Abstract: Background　Frailty develops dynamically.Effective interventions may delay the process of frailty and improve lower limb muscle strength and quality of life in pre-frail elderly people.Objective　To discuss the effects of resistance band exercises on lower limb muscle strength and quality of life in pre-frail elderly people.Methods　From September 2017 to April 2018，70 pre-frail elderly people from Yuyang Community，Wenzhou City were enrolled，and were divided into the control group and intervention group by a random number table,with 35 cases in each group.The control group maintained normal daily activities，while the intervention group did resistance band exercises.Lower limb muscle strength and quality of life were respectively measured by the five-times-sit-to-stand test（FTSST） and the the Mos 36-item Short Form Health Survery（SF-36） at pre-intervention，4 and 8 weeks after intervention to assess the effects of the intervention.Results　33 pre-frail elderly people in each group completed the intervention.The overall mean time taken for FTSST and overall mean scores for role limitations due to physical health problems（RP），bodily pain（BP），and general health perceptions（GH）were significantly different in two groups（P<0.05）.The mean time taken for FTSST and mean scores for RP，BP，and GMH were significantly different in two groups at different measurement times（P<0.05）.Intervention contents and duration had substantial interaction on time taken for FTSST and scores for all dimension of the SF-36（P<0.05）.After 4-week intervention，compared with control group，the mean time taken for FTSST reduced and mean scores for three dimensions（PF，BP，and GH） in SF-36 increased in the intervention group（P<0.05）.After 8-week intervention，the mean time taken for FTSST decreased，and the mean scores in all dimensions of SF-36 improved in the intervention group compared with control group（P<0.05）.Self-controlled comparisons showed that in the intervention group，the mean time taken for FTSST decreased with the increase of intervention time（P<0.05），mean scores for physical functioning（PF），RP，and BP increased with the increase of intervention time（P<0.05），mean score of GH increased more significantly after 8-week intervention compared with at pre-intervention and after 4-week intervention（P<0.05），mean score of vitality dimension improved after 8-week intervention compared with at pre-intervention（P<0.05）；while no significant changes in all the aforementioned aspects were found in the control group（P>0.05）.Conclusion　Resistance band exercises can improve the lower limb muscle strength and quality of life in pre-frail elderly people.

Key words: Frail elderly, Function training, Elastic band exercise, Muscle strength, Quality of life

摘要： 背景　衰弱是动态发展的，衰弱前期给予有效的干预可以延缓老年人衰弱的进程，提高其下肢肌肉力量和生活质量。目的　探讨弹力带训练对衰弱前期老年人下肢肌肉力量和生活质量的影响。方法　于2017年9月—2018年4月，选取温州市榆垟社区的70例衰弱前期老年人为研究对象，采用随机数字表法分成对照组和干预组，每组35例。对照组维持既往日常活动状态，干预组进行弹力带训练。在干预前、干预4周和8周后分别采用5次坐立试验（FTSST）和健康调查简表（SF-36）评估下肢肌肉力量和生活质量。结果　最终两组分别有33例完成了干预。两组FTSST时间和SF-36中生理职能、躯体疼痛和一般健康得分比较，差异有统计学意义（P<0.05）；不同时间点FTSST时间和SF-36各维度得分比较，差异有统计学意义（P<0.05）；且组别和时间在FTSST时间和各维度得分上存在交互作用（P<0.05）。干预4周后，干预组FTSST时间短于对照组，SF-36生理职能、躯体疼痛和一般健康3个维度得分高于对照组（P<0.05）；干预8周后，干预组FTSST时间短于对照组，SF-36各维度得分高于对照组（P<0.05）。组内比较，干预组FTSST时间随干预时间增加而减少（P<0.05）；SF-36生理功能、生理职能和躯体疼痛得分随干预时间增加而提高（P<0.05），一般健康得分在干预8周后较干预前和干预4周后均提高（P<0.05），社会功能、情感职能和精神健康维度得分在干预4周和8周后比干预前提高（P<0.05），精力得分在干预8周后较干预前提高（P<0.05）；而对照组各指标随时间增加均无明显改善（P>0.05）。结论　弹力带训练能改善衰弱前期老年人下肢肌肉力量和生活质量。

关键词: 虚弱老人, 功能训练, 弹力带训练, 肌力, 生活质量

CHEN Rujie,WU Qingwen,WANG Dongyan, et al. Effects of Resistance Band Exercises on Lower Limb Muscle Strength and Quality of Life in Pre-frail Elderly People　[J]. Chinese General Practice, 2019, 22(31): 3857-3860. DOI: 10.12114/j.issn.1007-9572.2019.00.457.
陈如杰,吴庆文,王冬燕等. 弹力带训练对衰弱前期老年人下肢肌肉力量和生活质量的影响研究[J]. 中国全科医学, 2019, 22(31): 3857-3860. DOI: 10.12114/j.issn.1007-9572.2019.00.457.

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