87例慢性阻塞性肺疾病患者上下肢肌力等速测试分析

Analysis of upper and lower limbs muscle strength in 87 patients with chronic obstructive pulmonary disease by using isokinetic testing

目的运用等速肌力测试分析慢性阻塞性肺疾病(COPD)患者上、下肢屈、伸肌群的肌力情况。方法对87例COPD患者(实验组,其中轻度17例、中度44例、重度26例)和34例健康体检者(对照组)进行肘和膝屈、伸肌群等速肌力测试,分别记录角速度60°/s、180°/s时上、下肢屈、伸肌群的峰力距;计算下肢屈、伸肌群的易疲劳指数。结果实验组屈肘肌群和伸肘肌群峰力距分别为(20.56±7.54)N·m、(22.61±9.26)N·m,屈膝肌群和伸膝肌群峰力距分别为(35.78±16.99)N·m、(71.86±27.98)N·m,均低于对照组(P<0.05);实验组下肢屈、伸肌群的易疲劳指数低于对照组(P<0.05)。结论等速肌力测试可作为分析COPD患者外周肌力变化的一种方法。

Objective To analyze the muscle strength of upper and lower limbs in patients with chronic obstructive pulmonary disease(COPD)by using isokinetic testing.Methods The flexors and extensors of the elbow and knee in 87 patients with COPD(experimental group,mild 17,moderate 44,severe26)and those in 34 healthy subjects(control group)were assessed by using isokinetic testing.The flexion and extension muscle peak torque(PT)of elbow and knee at angular velocity 60°/s and 180°/s were recorded respectively.The fatigue index of lower limb flexor and extensor muscles was also calculated respectively.Results The muscle PT of elbow flexion and extension in experimental group were(20.56±7.54)Nm and(22.61±9.26)Nm respectively,the muscle PT of knee flexion and extension in experimental group were(35.78±16.99)Nm and(71.86±27.98)Nm respectively,which were lower than those of in the control group(P<0.05).The fatigue index of lower limb flexor and extensor muscles in experimental group was lower than that of in the control group(P<0.05).Conclusions Isokinetic muscle testing can be used as a method to analyze the changes of peripheral muscle strength in patients with COPD.