强筋功法训练对腰骶部多裂肌影响的超声分析

目的 :观察强筋功法训练对腰骶部多裂肌的影响。方法 :招募健康志愿者30例,男21例,女9例;年龄25~55岁,平均(31.30±6.48)岁;BMI指数18.1~24.9 kg/m~2,平均(21.70±1.95)kg/m~2。采用超声影像分析健康志愿者行仰卧抬腿强筋力时仰卧位及仰卧抬腿30°、60°、90°多裂肌厚度,行双手攀足固肾腰时坐位屈髋、前屈至极限位、前探至极限位多裂肌厚度。结果:仰卧抬腿强筋力时,仰卧抬腿0°时多裂肌平均厚度为(16.867±2.460)mm,仰卧抬腿30°时多裂肌平均厚度为(19.010±2.510)mm,仰卧抬腿60°时多裂肌平均厚度为(22.477±2.220)mm,仰卧抬腿90°时多裂肌平均厚度为(27.593±2.370)mm,差异有统计学意义(F=423.619,P0.05)。双手攀足固肾腰时,坐位屈髋时多裂肌平均厚度为(25.810±2.440)mm,前屈位多裂肌平均厚度为(15.677±2.130)mm,前探位多裂肌平均厚度为(15.533±2.110)mm,差异有统计学意义(F=597.789,P0.05)。结论:健康志愿者在行强筋功法时,多裂肌的厚度随仰卧抬腿度数的增加而增加,随着前屈度数的增加而减小,可以通过特定动作训练改变多裂肌的伸缩状态,从而实现锻炼多裂肌的目的。

Ultrasonic analysis on the effect of strengthening exercise with strong tendon on lumbosacral multifidus muscles

Objective: To study effects of strengthening exercise with strong tendon on the lumbosacral multifidus muscle.Methods: Among 30 healthy volunteers,there were 21 males and 9 females,with an average age of(31.30±6.48) years old(ranged,25 to 55 years old). The mean BMI was (21.70±1.95) kg/m²(ranged,18.1 to 24.9 kg/m²). The ultrasonic image was used to analyze the thickness of lumbosacral multifidus(LM) under the follow conditions:supine position,and supine position with leg lifting 30°,60°, 90°; seat and hip flexion,flexion to limit position,front to limit position with both hands climbing and strengthening the kidneys and the waist.Results: The average lumbosacral multifidus thickness was (16.867±2.460) mm,(19.010±2.510) mm,(22.477±2.220) mm,and(27.593±2.370) mm respectively in supine position with leg lifting 0°,30°,60°,90°. There were statistical differences(F=423.619,P<0.05). The average lumbosacral multifidus thickness was (25.810±2.440) mm,(15.677±2.130) mm,and (15.533±2.110) mm respectively in seat and hip flexion,flexion to limit,front to limit positions with both hands climbing and strengthening the kidneys and the waist. There were statistical differences(F=597.789,P<0.05).Conclusion: When healthy volunteers in Shi''s Orthopedics strengthen muscle exercises training,multifidus thickness is increased with the increasing of leg degree,reduced with the increasing of the flexion degree. It can change the stretching state of multifidus muscle by a specific training,so as to achieve the purpose of training the multifidus muscle.