Albin Stephanie R, Koppenhaver Shane L, Bailey Brooke, Blommel Hilary, Fenter Brad, Lowrimore Chris, Smith Andrew C, McPoil Thomas G
Regis University, Denver, CO, United States.
Baylor University, Waco TX, United States.
Foot (Edinb). 2019 Mar;38:70-75. doi: 10.1016/j.foot.2019.01.006. Epub 2019 Jan 11.
Randomized clinical trial.
Muscle stiffness is a potential complication after injury and has been shown to be a risk factor for injury in healthy individuals.
The primary purpose of this study was to assess the short-term effects of manual therapy (MT) on muscle stiffness of the gastrocnemius in both a relaxed and contracted state. The secondary purpose was to assess the reliability of a novel clinical tool (MyotonPRO) to measure muscle stiffness in the gastrocnemius in both a passive and contracted state.
Eighty-four consecutive healthy individuals were randomized to receive Manual Therapy (MT group) directed at the right-side ankle and foot or no treatment (CONTROL group). Muscle stiffness of the gastrocnemius was assessed bilaterally in all participants at baseline and then immediately after intervention in a relaxed and contracted state. Group (MT vs. CONTROL) by side (ipsilateral vs. contralateral) by time (pre vs. post) effects were compared through a 3-way interaction utilizing mixed model ANOVA. Reliability of the MyotonPRO was assessed with two-way mixed model intraclass correlation coefficients.
There was a significant 3-way interaction for muscle stiffness of the gastrocnemius in a relaxed state (p<0.01), but not contracted state (p=0.54). All conditions had increased resting muscle stiffness from pre to post measures except for the ipsilateral limb of the MT group. There was not a significant interaction for muscle stiffness in a contracted state. Reliability estimates (ICC) for muscle stiffness measures ranged between 0.898 and 0.986.
The change in muscle stiffness of the gastrocnemius in a relaxed state depended upon whether individuals received MT. Muscle stiffness measures were highly reliable based on single measurements.
Therapy, level 2.
随机临床试验。
肌肉僵硬是损伤后的一种潜在并发症，并且已被证明是健康个体受伤的一个风险因素。
本研究的主要目的是评估手法治疗（MT）对腓肠肌在放松和收缩状态下肌肉僵硬的短期影响。次要目的是评估一种新型临床工具（MyotonPRO）在被动和收缩状态下测量腓肠肌肌肉僵硬的可靠性。
84名连续的健康个体被随机分为接受针对右侧踝和足部的手法治疗组（MT组）或不接受治疗组（对照组）。在基线时对所有参与者双侧评估腓肠肌的肌肉僵硬情况，然后在干预后立即评估其在放松和收缩状态下的情况。通过使用混合模型方差分析的三因素交互作用比较组（MT组与对照组）、侧别（同侧与对侧）和时间（干预前与干预后）的效应。使用双向混合模型组内相关系数评估MyotonPRO的可靠性。
在放松状态下，腓肠肌的肌肉僵硬存在显著的三因素交互作用（p<0.01），但在收缩状态下不存在（p=0.54）。除MT组的同侧肢体外，所有情况从干预前到干预后的静息肌肉僵硬均增加。在收缩状态下，肌肉僵硬不存在显著的交互作用。肌肉僵硬测量的可靠性估计值（ICC）在0.898至0.986之间。
腓肠肌在放松状态下肌肉僵硬的变化取决于个体是否接受MT。基于单次测量，肌肉僵硬测量具有高度可靠性。
治疗，2级。
