Drover Janice M, Forand Dominique R, Herzog Walter
Core Insight Chiropractic, 106-11 Merton Street, Toronto, Ontario M4S 3A7, Canada.
J Manipulative Physiol Ther. 2004 Jul-Aug;27(6):408-13. doi: 10.1016/j.jmpt.2004.05.006.
To determine if Active Release Technique (ART) protocols could be used as an effective way to influence strength and muscle inhibition in the quadriceps muscles of athletes with anterior knee pain.
Pilot clinical outcome study.
The sample consisted of 9 athletes (4 male athletes, 5 female athletes) who were identified as suffering from unilateral anterior knee pain. A Biodex dynamometer and the interpolated twitch technique were used to determine isometric strength and inhibition in the quadriceps muscles, respectively. The treatment intervention consisted of the Active Release Technique treatment protocols for anterior knee pain. The experimental leg and contralateral leg were tested pretreatment and posttreatment, and the experimental leg was tested a third time approximately 20 minutes posttreatment.
Knee extensor moments were calculated by multiplying the moment arm by the forces measured by the Biodex dynamometer. Percentage of muscle inhibition was calculated by dividing the interpolated twitch torque (ITT) by the resting twitch torque (RTT), that is (ITT/RTT*100). A repeated measures analysis of variance (ANOVA) was used to compare pretreatment and posttreatment values for strength and muscle inhibition for the experimental and contralateral knees. The results showed no statistical significance.
ART protocols did not reduce inhibition or increase strength in the quadriceps muscles of athletes with anterior knee pain. Further study is required.
确定主动放松技术（ART）方案是否可作为一种有效方法，来影响患有前膝疼痛的运动员股四头肌的力量和肌肉抑制。
初步临床结果研究。
样本包括9名被确定患有单侧前膝疼痛的运动员（4名男运动员，5名女运动员）。分别使用Biodex测力计和内插式抽搐技术来测定股四头肌的等长力量和抑制情况。治疗干预包括针对前膝疼痛的主动放松技术治疗方案。对实验侧腿和对侧腿在治疗前和治疗后进行测试，并且在治疗后约20分钟对实验侧腿进行第三次测试。
通过将力臂乘以Biodex测力计测得的力来计算伸膝力矩。肌肉抑制百分比通过将内插式抽搐扭矩（ITT）除以静息抽搐扭矩（RTT）来计算，即（ITT/RTT*100）。使用重复测量方差分析（ANOVA）来比较实验侧膝和对侧膝在治疗前和治疗后力量及肌肉抑制的数值。结果显示无统计学意义。
ART方案并未降低患有前膝疼痛的运动员股四头肌的抑制或增加其力量。需要进一步研究。
