目的  探讨多组分运动训练对老年慢性阻塞性肺疾病（COPD）稳定期病人骨骼肌功能的影响。方法  前瞻性选择2022年10月—2024年10月90例COPD稳定期患者，采用抽签法随机分为观察组与对照组，对照组45例采取常规运动干预，观察组45例在对照组基础上增加多组分运动训练。干预前、干预后3个月比较两组患者四肢骨骼肌含量，四肢肌群力量，运动耐力与肺功能，生活质量。结果 干预后，两组上肢、下肢骨骼肌含量均略增加，观察组高于对照组（P＜0.05）；干预后，两组膝伸肌、膝屈肌、肘伸肌、肘屈肌肌群力量均增加，观察组高于对照组（P＜0.05）；干预后，两组6 min步行试验、用力肺活量及第一秒用力呼气量均升高，观察组高于对照组（P＜0.05）；干预后，两组圣乔治呼吸问卷各维度分数及总分均降低，观察组低于对照组（P＜0.05）。结论  针对老年COPD稳定期患者采取多组分运动训练可提升患者四肢骨骼肌含量与四肢肌群力量，改善患者运动耐力与肺功能，减轻COPD及骨骼肌功能障碍对患者生活质量造成的负面影响。

        Objective  To explore the effect of multi-component exercise training on skeletal muscle function in elderly patients with stable chronic obstructive pulmonary disease（COPD）．Methods  From October 2022 to October 2024，90 stable COPD patients were prospectively selected and randomly divided into an observation group and a control group using a lottery method．The control group consisted of 45 patients who received routine exercise care，while the observation group  consisted of 45 patients who received multi-component exercise training in addition to the routine care．Skeletal muscle content，muscle group strength，exercise endurance，lung function，and quality of life between two groups of patients were compared before and three months after intervention．Results  After intervention，the skeletal muscle content of both upper and lower extremities slightly increased in both groups，with the observation group  being higher than the control group（P＜0.05）．After intervention，the strength of the knee extensor，knee flexor，elbow extensor，and elbow flexor muscle groups increased in both groups，with the observation group  had better results than the control group（P＜0.05）．After intervention，both groups showed an increase in six-minute walking test，forced vital capacity，and forced expiratory volume in first second，with the observation group  had better  results than the control group（P＜0.05）．After intervention，the scores of each dimension and total score of the SGRQ in both groups decreased，and the observation group had lower scores than the control group（P＜0.05）．Conclusions  Multi-component exercise training for stable elderly COPD patients can improve the skeletal muscle content and muscle strength of the extremities，enhance exercise endurance and lung function，and alleviate the negative impact of COPD and skeletal muscle dysfunction on patients’quality of life．