UNASSIGNED: To compare the effects of traditional active HAM stretching (AHS) and kinetic chain stretching (KCS) on electromyographic (EMG) amplitude and hip flexion range of motion (ROM) in participants with HAM tightness.
UNASSIGNED: In this randomized controlled trial, 18 participants (mean age: 25.01 ± 2.47 years) with HAM tightness were assigned to the AHS or KCS group. Hip joint movement, EMG amplitude, and onset times were recorded in the bilateral erector spinae, HAM, transverse abdominis/internal oblique (IO), external oblique (EO), and rectus abdominis during a straight leg raise test.
UNASSIGNED: Compared to AHS, KCS led to greater increase in the hip flexion ROM and EMG activation amplitudes in the left and right EO and left IO. Post-test hip flexion ROM data in both the groups were higher than the pre-test data.
UNASSIGNED: KCS produced more sustainable effectiveness in hip flexion movement and EMG motor control patterns in participants with HAM tightness than AHS.
■比较传统的主动HAM拉伸(AHS)和动力链拉伸(KCS)对具有HAM紧度的参与者的肌电图(EMG)幅度和髋关节屈曲活动范围(ROM)的影响。
■在这项随机对照试验中,18名具有HAM紧密度的参与者(平均年龄:25.01±2.47岁)被分配到AHS或KCS组。髋关节运动,肌电图幅度,记录双侧竖脊肌的发病时间,HAM,腹横肌/内斜肌(IO),外斜(EO),直腿抬高试验中的腹直肌。
■与AHS相比,KCS导致左,右EO和左IO的髋关节屈曲ROM和EMG激活幅度增加。两组的测试后髋关节屈曲ROM数据均高于测试前数据。
■KCS在具有HAM紧密度的参与者中,在髋关节屈曲运动和EMG运动控制模式方面比AHS产生了更可持续的有效性。