CAJ | 학술논문

目的：研究竖脊肌屈曲放松( flexion-relaxation，FR )比值在不同类型慢性腰痛患者和无痛对照人群中是否存在差异。方法97例慢性非特异性腰痛患者，51例为腰部前屈时疼痛，后伸无痛，分为前屈痛组；46例为腰部前屈时无痛，后伸时疼痛，分为后伸痛组；另有35名腰部无痛健康人，分为对照组。使用表面肌电图采集三组人群在完成躯干前屈和再背伸动作时竖脊肌的表面肌电信号，并计算 FR 比值。结果三组 FR 比值分别为：前屈痛组4.97±1.03、后伸痛组21.8±4.75、对照组22.85±3.64。前屈痛组 FR 比值明显小于后伸痛组(P＜0.01)和对照组(P＜0.01)。后伸痛组和对照组相比，FR 比值差异无统计学意义(P＝0.27)。结论慢性非特异性腰痛患者中，腰部前屈痛患者和无痛人群相比，FR 比值明显减小，此差异可为进一步鉴别此类腰痛患者提供参考。而对于后伸痛患者，FR 比值不能作为鉴别依据。
목적：연구수척기굴곡방송( flexion-relaxation，FR )비치재불동류형만성요통환자화무통대조인군중시부존재차이。방법97례만성비특이성요통환자，51례위요부전굴시동통，후신무통，분위전굴통조；46례위요부전굴시무통，후신시동통，분위후신통조；령유35명요부무통건강인，분위대조조。사용표면기전도채집삼조인군재완성구간전굴화재배신동작시수척기적표면기전신호，병계산 FR 비치。결과삼조 FR 비치분별위：전굴통조4.97±1.03、후신통조21.8±4.75、대조조22.85±3.64。전굴통조 FR 비치명현소우후신통조(P＜0.01)화대조조(P＜0.01)。후신통조화대조조상비，FR 비치차이무통계학의의(P＝0.27)。결론만성비특이성요통환자중，요부전굴통환자화무통인군상비，FR 비치명현감소，차차이가위진일보감별차류요통환자제공삼고。이대우후신통환자，FR 비치불능작위감별의거。
Objective To explore the differences in the lfexion-relaxation ( FR ) ratio of the erector spinae in a group of healthy persons and 2 different subgroups with chronic low back pain ( LBP ).Methods Among 97 chronic non-speciifc LBP patients, 51 patients with lfexion pain but no extension pain were taken as lfexion pain group and 46 patients with extension pain but no lfexion pain as extension pain group. There were 35 healthy subjects in the control group. The electromyographic signals of the erector spinae during the trunk lfexion and return tasks were recorded using surface electromyography ( EMG ) in all 3 groups, and the FR ratios of the erector spinae were measured. Results The FR ratios were 4.97±1.03, 21.8±4.75 and 22.85±3.64 in lfexion pain group, extension pain group and control group. The FR ratio in lfexion pain group was obviously lower than that in extension pain group (P<0.01 ) and control group (P<0.01 ). No statistically signiifcant differences existed in the FR ratio between extension pain group and control group ( P=0.27 ).Conclusions The FR ratio in lfexion pain group is signiifcantly lower than that in control group. The differences in the FR ratio can be used to distinguish a subtype of patients with lfexion pain from pain-free control subjects. However, extension pain patients are not indistinguishable from pain-free control subjects based on the FR ratio.