Rehabilitation Research Center, Department of Rehabilitation Management, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.
Musculoskelet Sci Pract. 2021 Jun;53:102377. doi: 10.1016/j.msksp.2021.102377. Epub 2021 Apr 16.
Several studies have investigated cervical kinematic performance in patients with chronic neck pain, especially with fast movements. A recent systematic review recommended further study of cervical spine kinematics cervical motions in individuals with neck pain.
This study aimed to examine cervical spine kinematics of naturally paced cervical motions in patients with chronic neck pain compared with a group of asymptomatic participants. Also, the relationships between cervical kinematic measures with neck pain intensity and disability were determined.
Kinematic performance was measured in 20 individuals with chronic nonspecific neck pain and 20 healthy controls. Data were captured using a 7-camera motion analysis system. Parameters were range of cervical motion, peak velocity, duration of movement, and jerk index (smoothness of movement). Pain intensity and Neck Disability Index were also measured.
Duration of movements, peak velocities, and jerk indexes were significantly different between the two groups (p < 0.05). Pain intensity was significantly associated with duration of movement, range of motion, peak velocity, and smoothness predominantly in extension (r range = 0.4 to 0.6, p < 0.05).
This study's findings indicated altered cervical kinematic performance during naturally paced motions (particularly reduced smoothness of movement)in patients with chronic nonspecific neck pain compared to asymptomatic participants. Also, pain intensity was moderately associated with most kinematic measures, especially in extension. This study's results can help to understand better the impairments associated with chronic nonspecific neck pain.
多项研究已经调查了慢性颈痛患者的颈椎运动学表现，尤其是快速运动。最近的一项系统评价建议进一步研究颈痛患者的颈椎运动学。
本研究旨在比较慢性颈痛患者与无症状参与者自然节奏下颈椎运动的颈椎运动学。还确定了颈椎运动学测量与颈痛强度和残疾之间的关系。
使用 7 个摄像头运动分析系统测量了 20 名慢性非特异性颈痛患者和 20 名健康对照者的运动学表现。参数包括颈椎运动范围、峰值速度、运动持续时间和急动指数（运动平滑度）。还测量了疼痛强度和颈部残疾指数。
两组间运动持续时间、峰值速度和急动指数差异有统计学意义（p < 0.05）。疼痛强度与运动持续时间、运动范围、峰值速度和主要在伸展时的平滑度显著相关（r 范围= 0.4 至 0.6，p < 0.05）。
与无症状参与者相比，慢性非特异性颈痛患者在自然节奏运动时表现出颈椎运动学性能的改变（尤其是运动平滑度降低）。此外，疼痛强度与大多数运动学测量值中度相关，尤其是在伸展时。本研究结果有助于更好地理解慢性非特异性颈痛相关的障碍。
