Marchand Andrée-Anne, Cantin Vincent, Murphy Bernadette, Stern Paula, Descarreaux Martin
Université du Québec à Trois-Rivières, 3351 boul, des Forges, C,P, 500 Trois-Rivières, Québec G9A 5H7, Canada.
BMC Musculoskelet Disord. 2014 May 26;15:179. doi: 10.1186/1471-2474-15-179.
Head repositioning tasks have been used in different experimental and clinical contexts to quantitatively measure motor control performance. Effects of pain on sensorimotor control have often been described in various musculoskeletal conditions and may provide relevant information with regard to potential mechanisms underlying tension-type headaches. The purpose of the current study was to compare the performance of patients with tension-type headache and healthy participants in a cervical aiming task using the Fitts' task paradigm.
Patients with tension-type headache and healthy controls were compared in a cervical aiming task. Participants were asked to move their head as quickly, and precisely as possible to a target under various experimental conditions. Dependent variables included movement time, variable error, constant error and absolute error.
As predicted by Fitts' law, decreasing target size and increasing head rotation amplitudes yielded longer movement times in both groups. Participants with tension-type headache, when compared to healthy participants showed a significant increase in both constant and absolute errors for each of the four conditions.
Decreased motor performance was observed in participants with tension-type headache, likely due to altered motor control of the neck musculature. Future research is warranted to investigate the clinical aspect related to decrease in motor performance.
头部重新定位任务已在不同的实验和临床环境中用于定量测量运动控制性能。疼痛对感觉运动控制的影响在各种肌肉骨骼疾病中经常被描述，并且可能为紧张型头痛潜在机制提供相关信息。本研究的目的是使用菲茨任务范式比较紧张型头痛患者和健康参与者在颈部瞄准任务中的表现。
在颈部瞄准任务中比较紧张型头痛患者和健康对照者。要求参与者在各种实验条件下尽可能快速、准确地将头部移动到目标位置。因变量包括运动时间、可变误差、恒定误差和绝对误差。
正如菲茨定律所预测的，两组中目标尺寸减小和头部旋转幅度增加都会导致运动时间延长。与健康参与者相比，紧张型头痛患者在四种条件下的恒定误差和绝对误差均显著增加。
观察到紧张型头痛患者的运动表现下降，可能是由于颈部肌肉组织的运动控制改变所致。有必要进行进一步研究以调查与运动表现下降相关的临床方面。
