12周健身气功八段锦对膝骨关节炎患者下肢体成分及肌肉厚度影响

Effects of 12-week Health Qigong Baduanjin on Lower Limb Body Compositions in Knee Osteoarthritis Patients

目的股四头肌肌肉含量降低与膝骨性关节炎的进程相关,该研究目的是从体成分角度探讨健身气功八段锦对膝骨关节炎的作用机制。方法膝骨关节炎患者23名随机分为八段锦练习组(n=11人)和健康宣教组(n=12人),分别在干预前及12周干预结束利用VAS疼痛评分、WOMAC、LM指数量表以评估受试者症状改善程度,双能X线骨密度仪被用来检测受试者下肢脂肪、肌肉含量的变化,肌骨超声被用来测量受试者腿部肌肉厚度的改变。结果12周干预结束后,健康宣教组体质量、BMI较干预前显著增加(P<0.05);两组VAS评分均有降低趋势但无显著性差异;WOMAC评分中健康宣教组在疼痛方面在干预前后改善显著(P<0.05);LM严重指数八段锦组干预前后显著下降(P<0.05);DEXA结果显示,八段锦组与健康宣教组臀部及大腿肌肉含量显著增高(P<0.05),但八段锦组臀部脂肪含量显著下降(P<0.05),健康宣教组臀部脂肪含量呈显著增高(P<0.05);肌骨超声结果显示八段锦组左侧及右侧大腿股直肌(P<0.01)、左腿股内侧肌(P<0.05)肌肉横截面直径显著增加。结论监督性,系统性八段锦训练有益于增加膝骨关节炎患者下肢肌肉含量,降低脂肪含量,改善膝骨关节炎患者症状严重程度。

Objective Decreased quadriceps femoris muscle mass is associated with the progression of knee osteoarthritis.The purpose of this study is to explore the mechanism of Qigong Baduanjin on patients with knee osteoarthritis from the perspective of body composition.Methods Twenty-three knee osteoarthritis patients were randomly divided into Baduanjin exercise group as experimental group(n=11)and health education group as control group(n=12).Before and after 12 weeks of intervention,the body weight and BMI of subjects were measured,VAS,WOMAC and LM severity index scales were used to evaluate the improvement of symptoms.The fat mass and lean muscle mass of lower limbs was measured by dual energy X-ray instrument,ultrasound was used to measure leg lean muscle thickness.Results After 12 weeks of intervention,the body weight and BMI of health education group increased significantly(P<0.05);the VAS scores of both groups decreased,but there was no significant difference;health education group improved significantly in WOMAC scores of the pain(P<0.05);LM severity index in Baduanjin group decreased significantly(P<0.05).The results of DEXA showed that the lean muscle mass of gynoid and legs in Baduanjin group and health education group increased significantly(P<0.05),but the gynoid fat mass in Baduanjin group decreased significantly(P<0.05),while the gynoid fat mass in health education group increased significantly(P<0.05).The results of ultrasound showed that the cross-sectional diameters of rectus femoris muscle(P<0.01)in both legs and the medial femoral muscle(P<0.05)in left leg were significantly increased in Baduanjin group.Conclusion Supervisory and systematic Baduanjin training is beneficial to increase the lean muscle mass of lower limbs,reduce fat mass and improve symptoms of knee osteoarthritis.