CAJ | 학술논문

目的利用自建表面肌电图的标准化测试分析髌股疼痛综合征(PFPS)患者股内侧肌(VM)与股外侧肌(VL)在控制髌骨运动中的变化特征.方法选取PFPS患者7例(13个膝)作为病例组,另选健康志愿者10例(20个膝)作为对照组,并分别进行表面肌电图检查,测量蹲起运动VM和VL的平均波幅和峰值时限(TBP).结果 PFPS组和对照组VM∶VL平均振幅比值分别为(0.97±0.31)和(1.09±0.36),2组差异无统计学意义(P＞0.05),2组下蹲时的平均比值(1.00±0.16)明显高于起立时的平均比值(0.83±0.15)(P＜0.05).在蹲起时PFPS组的TBPVM较TBPVL延迟(8.77％±5.12％)与对照组(-1.45％±4.02％)的比较有统计学意义(P＜0.01).结论所用表面肌电图的标准化测试能发现本组PFPS患者下蹲时VM的峰值时限明显滞后于VL,可用于评定局部型PFPS患者术后或康复治疗前后的变化.
목적 이용자건표면기전도적표준화측시분석빈고동통종합정(PFPS)환자고내측기(VM)여고외측기(VL)재공제빈골운동중적변화특정.방법 선취PFPS환자7례(13개슬)작위병례조,령선건강지원자10례(20개슬)작위대조조,병분별진행표면기전도검사,측량준기운동VM화VL적평균파폭화봉치시한(TBP).결과 PFPS조화대조조VM∶VL평균진폭비치분별위(0.97±0.31)화(1.09±0.36),2조차이무통계학의의(P＞0.05),2조하준시적평균비치(1.00±0.16)명현고우기립시적평균비치(0.83±0.15)(P＜0.05).재준기시PFPS조적TBPVM교TBPVL연지(8.77％±5.12％)여대조조(-1.45％±4.02％)적비교유통계학의의(P＜0.01).결론 소용표면기전도적표준화측시능발현본조PFPS환자하준시VM적봉치시한명현체후우VL,가용우평정국부형PFPS환자술후혹강복치료전후적변화.
Objective To analyze the activity of the vastus medialis (VM) and vastus lateralis (VL) muscles in the dynamic stabilization of the patella in patients with patellofemoral pain (PFPS) using standard surface electromyographic (sEMG) tests.Methods This comparative study involved 7 patients with PFPS (13 knees) and 10 healthy subjects (20 knees).They performed weight-bearing squat movements,and sEMG was employed to measure the mean amplitude and the time before peak (TBP) of their VM and VL muscles.Results There was no significant difference between the two groups in the ratio of the mean amplitudes of the VM and VL muscles.However,the ratio in both groups in squatting was significantly higher than when simply standing.In the PFPS group the average TBP delay of the VM relative to the TBP of the VL was significantly longer than in the control group during squat movements.Conclusions The delay in the TBP of the VM relative to the VL during squat movements could serve as a standardized test for assessing treatment effect in patients with local factor PFPS.