劉德民 朱瑜
文章編號(hào):1003?6180(2023) 03?0058?06
摘? 要:對(duì)相關(guān)隨機(jī)對(duì)照試驗(yàn)進(jìn)行系統(tǒng)評(píng)價(jià)和meta分析,闡明阻力訓(xùn)練(RT)、全身振動(dòng)訓(xùn)練(WBVT)以及混合訓(xùn)練(MT)對(duì)老年骨骼肌減少癥患者膝關(guān)節(jié)伸展力量[KES]的影響.分析結(jié)果發(fā)現(xiàn),RT(SMD = 1.23, 95%CI[0.65,1.81],P < 0.01, I2 = 73%)和MT(SMD = 0.57, 95%CI[0.27,0.87],P < 0.01, I2 = 52%)對(duì)肌少癥患者的KES有顯著改善效果,而WBVT(SMD = 0.85, 95%CI[-0.11,1.81],P = 0.08, I2 = 86%)對(duì)肌少癥患者的KES改善效果無(wú)統(tǒng)計(jì)學(xué)意義. RT和MT兩種訓(xùn)練模式對(duì)肌少癥患者的KES起到了顯著性的改善,但WBVT訓(xùn)練模式對(duì)肌少癥患者的KES無(wú)明顯改善.
關(guān)鍵詞:骨骼肌減少癥;阻力訓(xùn)練;全身振動(dòng)訓(xùn)練;混合訓(xùn)練;膝關(guān)節(jié)伸展力量;元分析
[? ?中圖分類號(hào)? ? ]G8 [? ? 文獻(xiàn)標(biāo)志碼? ?]? A
The Effects of Different Training Modes on Knee Extension
Strength in Patients with Sarcopenia
LIU Demin,ZHU Yu*
(School of Physical Education, Southwest University, Chongqing 400715,China)
Abstract: A systematic review and meta-analysis were conducted on relevant randomized controlled trials to elucidate the effects of resistance training (RT),whole-body vibration training (WBVT), and mixed training (MT) on knee extension strength (KES) in elderly patients with sarcopenia.The analysis results revealed that RT(SMD=1.23,95%CI [0.65,1.81],P<0.01,I2 = 73%) and MT(SMD=0.57,95%CI[0.27, 0.87],P< 0.01,I2=52%) significantly improved KES in sarcopenic patients,while WBVT(SMD=0.85, 95% CI[-0.11, 1.81],P= 0.08, I2 = 86%) showed no statistically significant improvement in KES for sarcopenic patients. Both RT and MT demonstrated significant improvements in KES for sarcopenic patients, whereas WBVT did not show significant improvement in KES for sarcopenic patients.
Key words:skeletal sarcopenia; resistance training; whole body vibration training; hybrid training; knee extension strength; meta-analysis
骨骼肌減少癥是目前比較普遍的老年綜合征之一,其特征主要是患者骨骼肌質(zhì)量減少、肌肉力量和身體表現(xiàn)嚴(yán)重下降.[1-4]骨骼肌減少癥在社區(qū)居民中的患病率為9%~10%,在療養(yǎng)院的患病率為30%~50%,在住院的個(gè)體中患病率為23%~24%[4-7],此類疾病的預(yù)防與治療已經(jīng)成為目前臨床醫(yī)學(xué)主要探究的熱點(diǎn)問(wèn)題之一.[8]肌少癥疾病的發(fā)生與若干不良結(jié)局相關(guān),包括跌倒和繼發(fā)性骨折、肺功能不全[9]、睡眠障礙、認(rèn)知障礙[10]、健康生活質(zhì)量較差和過(guò)早死亡[11, 12],所有這些都將給患者以及其家庭帶來(lái)重大的醫(yī)療和經(jīng)濟(jì)負(fù)擔(dān).因此,預(yù)防和治療骨骼肌減少癥對(duì)維持老年人的身體功能、改善健康結(jié)果以及減少與骨骼肌減少癥相關(guān)的醫(yī)療支出非常重要.運(yùn)動(dòng)干預(yù)作為一種非藥物干預(yù)手段是目前預(yù)防以及治療骨骼肌減少癥的最常用干預(yù)手段之一.運(yùn)動(dòng)可產(chǎn)生顯著的生理和健康益處[8, 13],對(duì)于預(yù)防和延緩肌少癥的發(fā)生有著顯著的作用.人們對(duì)阻力訓(xùn)練(RT)、混合訓(xùn)練(MT)、全身振動(dòng)訓(xùn)練(WBVT)運(yùn)動(dòng)訓(xùn)練模式的異同以及對(duì)肌少癥患者膝關(guān)節(jié)伸展力量的影響知之甚少,限制了運(yùn)動(dòng)研究結(jié)果在老年肌少癥患者中的傳播.[14, 15]本研究探究三種運(yùn)動(dòng)訓(xùn)練模式(RT,WBVT和MT)對(duì)肌少癥患者膝關(guān)節(jié)伸展強(qiáng)度(KES)的影響,為老年人骨骼肌減少癥患者改善下肢力量、降低日常跌倒風(fēng)險(xiǎn)提供具體有效的運(yùn)動(dòng)訓(xùn)練方式,為運(yùn)動(dòng)處方的制定提供借鑒與參考.
1 資料與方法
1.1 文獻(xiàn)檢索策略
數(shù)據(jù)庫(kù):PubMed,Cochrane,Embase,Web of Science,中國(guó)知網(wǎng)(CNKI),萬(wàn)方.中文檢索方式為關(guān)鍵詞和同義詞:“肌少癥”“肌肉萎縮”“肌肉減少癥”“肌肉力量”“振動(dòng)訓(xùn)練”“阻力訓(xùn)練”“隨機(jī)對(duì)照試驗(yàn)”“耐力訓(xùn)練”等.外文檢索方式采用主題詞(MeSH)與自由詞形式對(duì)相關(guān)文獻(xiàn)進(jìn)行系統(tǒng)檢索,文獻(xiàn)檢索時(shí)間年限為2012年5月至2022年5月. 共檢索文獻(xiàn)2 324條,Pubmed (n = 1 367),Web of Science (n = 809),中國(guó)知網(wǎng)(CNKI) (n = 107),萬(wàn)方數(shù)據(jù)庫(kù)(n = 41).根據(jù)文獻(xiàn)的納入和排除標(biāo)準(zhǔn),最終有20篇實(shí)驗(yàn)研究被納入進(jìn)行進(jìn)行薈萃分析.
1.2 文獻(xiàn)納入與排除標(biāo)準(zhǔn)
根據(jù)PICOS五項(xiàng)原則建立相關(guān)文獻(xiàn)納入與排除標(biāo)準(zhǔn)[16],見(表1).主要納入隨機(jī)對(duì)照實(shí)驗(yàn)、部分前后對(duì)照實(shí)驗(yàn)以及含有以上試驗(yàn)設(shè)計(jì)的相關(guān)研究.文獻(xiàn)的篩選工作由兩名研究者獨(dú)立篩選,完成后對(duì)納入文獻(xiàn)匯總,如果有不同意見與第三名研究人員共同討論,最終確定文獻(xiàn)的納入與排除,對(duì)20篇相關(guān)實(shí)驗(yàn)研究進(jìn)行系統(tǒng)評(píng)價(jià).
1.3 數(shù)據(jù)提取
兩名研究人員獨(dú)立對(duì)相關(guān)文獻(xiàn)的作者、出版年份、研究對(duì)象的特征(樣本量、性別、平均年齡等)、運(yùn)動(dòng)干預(yù)的細(xì)節(jié)(持續(xù)時(shí)間、類型、頻率和強(qiáng)度)以及膝關(guān)節(jié)伸展力量的結(jié)果測(cè)量值進(jìn)行提取.使用Review Manager軟件對(duì)相關(guān)數(shù)據(jù)進(jìn)行統(tǒng)計(jì)分析.對(duì)每項(xiàng)研究的質(zhì)量進(jìn)行評(píng)價(jià),通過(guò)全文閱讀對(duì)研究進(jìn)行低風(fēng)險(xiǎn)、不明確風(fēng)險(xiǎn)或高風(fēng)險(xiǎn)評(píng)估與劃分.本研究中未評(píng)估的偏見被列為其他潛在偏見,被指定為風(fēng)險(xiǎn)不明確的一類.兩位研究人員在識(shí)別研究偏差方面的差異通過(guò)與第三位研究人員的討論解決.
1.4 統(tǒng)計(jì)學(xué)方法
納入研究結(jié)果的異質(zhì)性采用I2進(jìn)行評(píng)估,當(dāng)I2 < 50%時(shí)采用固定效應(yīng)模型,當(dāng)I2 > 50%時(shí)采用隨機(jī)效應(yīng)模型.為了進(jìn)行meta分析,當(dāng)自變量和因變量的測(cè)量方法和單位相同時(shí),計(jì)算加權(quán)平均差異(WMD)和95%置信區(qū)間(95% CI).當(dāng)研究對(duì)自變量和因變量采用不同的測(cè)量方法和單位時(shí),計(jì)算標(biāo)準(zhǔn)化平均差異(SMDs)和95% CI.當(dāng)P < 0.05時(shí),則差異有統(tǒng)計(jì)學(xué)意義.
2 研究結(jié)果
薈萃分析使用Cochrane評(píng)價(jià)標(biāo)準(zhǔn)對(duì)所納入文獻(xiàn)的質(zhì)量進(jìn)行系統(tǒng)評(píng)估,對(duì)文獻(xiàn)的6個(gè)基本方面(是否采用隨機(jī)分配,分配是否隱藏,文獻(xiàn)是否采用盲法,結(jié)局?jǐn)?shù)據(jù)是否完整性,作者是否選擇性的報(bào)告研究結(jié)果,其他偏移)進(jìn)行相應(yīng)的評(píng)價(jià).如果文獻(xiàn)小于或等于2條評(píng)價(jià)較差則表明為高質(zhì)量文獻(xiàn)(共9篇)、3條評(píng)價(jià)較差則表示文獻(xiàn)為中等質(zhì)量文獻(xiàn)(共2篇)、大于等于4條評(píng)價(jià)較差則表示文獻(xiàn)的質(zhì)量較差文獻(xiàn)(共6篇).
2.1 阻力訓(xùn)練對(duì)肌肉減少癥患者膝關(guān)節(jié)伸展能力的
圖2是阻力訓(xùn)練對(duì)肌少癥患者膝關(guān)節(jié)伸展力量統(tǒng)計(jì)結(jié)果森林圖(實(shí)驗(yàn)組118例,對(duì)照組111例).研究結(jié)果顯示,實(shí)驗(yàn)組的KES評(píng)分較對(duì)照組顯著提高(SMD = 1.23, 95%CI[0.65,1.81],P < 0.01, I2 = 73%),表明肌少癥患者經(jīng)過(guò)阻力訓(xùn)練后,膝關(guān)節(jié)伸展力量得到了顯著的提升,阻力訓(xùn)練可以有效改善受試者下肢力量,降低其在日常生活中跌倒的風(fēng)險(xiǎn),有利于患者疾病的預(yù)防以及癥狀的緩解與治療.
2.2 全身震動(dòng)訓(xùn)練對(duì)肌肉減少癥患者膝關(guān)節(jié)伸展能力的影響
圖3是全身震動(dòng)訓(xùn)練對(duì)肌少癥患者膝關(guān)節(jié)伸展力量統(tǒng)計(jì)結(jié)果森林圖(實(shí)驗(yàn)組98例,對(duì)照組97例).研究結(jié)果顯示,實(shí)驗(yàn)組的KES評(píng)分較對(duì)照組顯著提高(SMD = 0.85, 95%CI[-0.11,1.81],P = 0.08, I2 = 86%),表明肌少癥患者經(jīng)過(guò)全身振動(dòng)訓(xùn)練后,與對(duì)照組相比,患者的膝關(guān)節(jié)伸展力量無(wú)顯著性差異,全身振動(dòng)訓(xùn)練對(duì)肌少癥患者膝關(guān)節(jié)伸展力量無(wú)顯著改善.
2.3 混合訓(xùn)練對(duì)肌肉減少癥患者膝關(guān)節(jié)伸展能力的影響
圖4是混合訓(xùn)練對(duì)肌少癥患者膝關(guān)節(jié)伸展力量統(tǒng)計(jì)結(jié)果森林圖(實(shí)驗(yàn)組219例,對(duì)照組206例).研究結(jié)果顯示,實(shí)驗(yàn)組的KES評(píng)分較對(duì)照組顯著提高(SMD = 0.57, 95%CI[0.27,0.87],P < 0.01, I2 = 52%),表明肌少癥患者經(jīng)過(guò)混合訓(xùn)練后,膝關(guān)節(jié)伸展力量得到了顯著的提升,混合訓(xùn)練可以有效改善受試者的膝關(guān)節(jié)伸展力量,降低其在日常生活中跌倒的風(fēng)險(xiǎn),有利于患者疾病的預(yù)防以及癥狀的緩解與治療.
3 討論
在肌少癥老年人中,阻力訓(xùn)練(RT)和混合訓(xùn)練(MT)運(yùn)動(dòng)訓(xùn)練模式對(duì)膝關(guān)節(jié)伸展強(qiáng)度(KES)有積極影響,全身振動(dòng)訓(xùn)練(WBVT)對(duì)KES結(jié)果無(wú)顯著影響.導(dǎo)致此結(jié)果的原因可能與運(yùn)動(dòng)訓(xùn)練動(dòng)作的差異、運(yùn)動(dòng)對(duì)身體的特定要求以及運(yùn)動(dòng)訓(xùn)練方案的不同有關(guān).
RT,MT和WBVT都是值得推廣的運(yùn)動(dòng)訓(xùn)練模式.患有年齡相關(guān)殘疾(如癡呆、骨關(guān)節(jié)炎和偏癱)的老年人,以及在進(jìn)行RT和MT運(yùn)動(dòng)訓(xùn)練模式方面有困難的人,可以從站立或坐姿的WBVT中獲益,以維持或改善身體功能的某些方面.
本研究比較了RT,WBVT和MT對(duì)骨骼肌減少癥患者膝關(guān)節(jié)伸展力量的影響,分析結(jié)果表明,并不是所有的運(yùn)動(dòng)訓(xùn)練模式都能改善骨骼肌減少癥患者膝關(guān)節(jié)伸展力量,正確的運(yùn)動(dòng)訓(xùn)練模式對(duì)于提高肌肉減少癥患者最需要的肌肉力量和身體表現(xiàn)具有重要意義.
RT是用于預(yù)防或延緩各種老年人群肌少癥進(jìn)展的最常見運(yùn)動(dòng)模式之一.RT訓(xùn)練能夠?qū)∩侔Y患者的KES起到明顯的改善效果,這與本研究結(jié)果一致.[8, 14, 17]WBVT對(duì)KES沒(méi)有產(chǎn)生顯著的改善作用,但之前有研究表明,WBVT對(duì)KES的影響有著相反的結(jié)果.如Wu等通過(guò)12項(xiàng)臨床試驗(yàn)以及隨機(jī)試驗(yàn)進(jìn)行薈萃分析[18],發(fā)現(xiàn)在一段時(shí)間WBVT運(yùn)動(dòng)干預(yù)后,受試者的膝關(guān)節(jié)伸展力量(KES)得到顯著改善.對(duì)于這些不同的結(jié)果,可能是由于研究采用不同的WBVT協(xié)議所導(dǎo)致的.WBVT的振動(dòng)頻率可能限制了其提高KES的能力.在一項(xiàng)針對(duì)80名社區(qū)老年人的研究中,Wei等人比較了不同的振動(dòng)頻率組合(20赫茲、40赫茲、60赫茲)對(duì)膝關(guān)節(jié)伸展性能的影響.[19]結(jié)果表明,40 赫茲的振動(dòng)頻率對(duì)提高等速膝關(guān)節(jié)伸展性能最優(yōu).本研究WBVT的頻率低于20赫茲,因此,導(dǎo)致無(wú)法提高肌肉力量;WBVT總振動(dòng)干預(yù)周期平均為10周,推測(cè)WBVT對(duì)身體成績(jī)的影響會(huì)受到時(shí)間的影響,適當(dāng)?shù)妮^長(zhǎng)的干預(yù)時(shí)間可以全面提高身體成績(jī).
4 結(jié)論
(1)阻力訓(xùn)練(RT)和混合訓(xùn)練(MT)兩種運(yùn)動(dòng)訓(xùn)練模式可以對(duì)肌肉減少癥患者的膝關(guān)節(jié)伸展力量(KES)產(chǎn)生顯著的改善效果.
(2)全身振動(dòng)訓(xùn)練(WBVT)運(yùn)動(dòng)訓(xùn)練模式對(duì)肌肉減少癥患者的膝關(guān)節(jié)伸展力量(KES)不具有顯著性的改善效果.
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編輯:吳楠