King Sasha Lee, Docrat Aadil, Abdul-Rasheed Ashura
Chiropractic Department, Durban University of Technology, Durban, KwaZulu-Natal, South Africa.
J Chiropr Med. 2022 Dec;21(4):241-248. doi: 10.1016/j.jcm.2022.04.001. Epub 2022 Jul 15.
The purpose of this study was to investigate the immediate effects of cervical spine manipulation (SM) compared with muscle energy technique (MET) on neck muscle activity and range of motion in asymptomatic people.
A randomized parallel-group study was conducted at a chiropractic teaching clinic in Durban, South Africa. Fifty asymptomatic participants between 18 and 35 years of age were randomly assigned into group 1 or group 2. Group 1 received cervical SM, and group 2 received MET. Participants were blinded to group allocation only. Baseline and post-test measurements consisted of resting upper trapezius and posterior cervical muscle activity and cervical spine range of motion (ROM) in lateral flexion and extension.
A significant difference was found in cervical ROM within groups ( < .001), with no significant difference observed between the 2 groups. The right posterior cervical muscles showed a significant difference in group 1 only ( = .012). No significant muscle activity changes occurred in group 2. Resting muscle activity measures showed no statistically significant changes between groups.
A single application of SM and MET to the cervical spine immediately increased cervical ROM. Neither cervical SM nor MET changed resting posterior cervical and upper trapezius muscle activity.
本研究旨在比较颈椎整复手法（SM）与肌肉能量技术（MET）对无症状人群颈部肌肉活动和活动范围的即时影响。
在南非德班的一家脊椎按摩疗法教学诊所进行了一项随机平行组研究。50名年龄在18至35岁之间的无症状参与者被随机分为第1组或第2组。第1组接受颈椎SM，第2组接受MET。参与者仅对分组分配不知情。基线和测试后测量包括静息时上斜方肌和颈后肌肉活动以及颈椎在侧屈和伸展时的活动范围（ROM）。
组内颈椎ROM存在显著差异（<.001），两组之间未观察到显著差异。仅第1组右侧颈后肌肉显示出显著差异（ = .012）。第2组未发生显著的肌肉活动变化。静息肌肉活动测量显示两组之间无统计学显著变化。
对颈椎单次应用SM和MET可立即增加颈椎ROM。颈椎SM和MET均未改变静息时颈后和上斜方肌的肌肉活动。
