Kålund S, Sinkjaer T, Arendt-Nielsen L, Simonsen O
Department of Orthopaedic Surgery, Alborg Hospital, Denmark.
Am J Sports Med. 1990 May-Jun;18(3):245-8. doi: 10.1177/036354659001800304.
Recent studies indicate that the hamstrings are essential antagonists in ACL deficient patients. In order to evaluate muscle coordination under physiologic conditions, nine patients with arthroscopically verified total ACL ruptures were compared with nine control volunteers. This comparison was made from electromyograms of the thigh muscles and heel contact recordings made while walking on a treadmill. While walking on a horizontal level, the patient's muscle activity did not differ from controls, but when the knee load was increased by walking uphill, the hamstring muscles in patients were activated significantly earlier than among controls. It is proposed that an altered muscle coordination is probably essential in ACL deficient patients to secure knee stability. This study suggests a new approach to investigate the coordination of muscles under physiologic conditions in ACL deficient patients, and may guide rehabilitation programs in the future.
近期研究表明，在前交叉韧带（ACL）损伤的患者中，腘绳肌是至关重要的拮抗肌。为了评估生理条件下的肌肉协调性，对9例经关节镜证实为完全ACL断裂的患者与9名对照志愿者进行了比较。这种比较是基于在跑步机上行走时大腿肌肉的肌电图和足跟接触记录进行的。在水平面上行走时，患者的肌肉活动与对照组无差异，但在上坡行走增加膝关节负荷时，患者的腘绳肌比对照组显著更早被激活。有人提出，改变肌肉协调性可能对ACL损伤患者确保膝关节稳定性至关重要。这项研究提出了一种新的方法来研究ACL损伤患者在生理条件下的肌肉协调性，并可能在未来指导康复计划。
