Subtalar joint position during gastrocnemius stretching and ankle dorsiflexion range of motion
Subtalar joint position during gastrocnemius stretching and ankle dorsiflexion range of motion
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DOI：
10.4085/1062-6050-43.2.172
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发表时间：
2008-03-01
影响因子：
3.3
通讯作者：
Phouthavong, Phouvy
中科院分区：
文献类型：
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作者：
Johanson, Marie;Baer, Jennifer;Phouthavong, Phouvy
背景：对于因踝关节背屈受限而导致过度使用损伤的患者，腓肠肌拉伸练习通常作为治疗方案的一部分被开具。然而，关于腓肠肌拉伸过程中距下关节的位置如何影响踝关节背屈活动范围（ROM），人们知之甚少。
目的：确定腓肠肌拉伸过程中距下关节位置对踝关节背屈ROM的影响。
设计：本研究采用三因素混合模型设计。三个因素分别是距下关节位置（旋后、旋前）、下肢（实验组、对照组）和时间（前测、后测）。下肢和时间为重复测量因素。
地点：大学研究实验室。
患者或其他参与者：33名健康志愿者（29名女性，4名男性）。
干预措施：参与者对随机分配的实验侧（优势侧或非优势侧）的距下关节在随机分配的位置（旋后或旋前）进行腓肠肌拉伸练习，每天2次，持续3周。对侧下肢作为对照。
主要观察指标：在为期3周的腓肠肌拉伸计划前后，我们使用量角器在距下关节处于解剖学0度位置时测量负重和非负重状态下的踝关节背屈ROM。
结果：在腓肠肌拉伸计划后，负重和非负重状态下测量的踝关节背屈ROM均增加（分别为P = 0.034和P = 0.003），但ROM的增加在距下关节位置方面没有差异（分别为P = 0.775和P = 0.831）。
结论：在健康志愿者中，距下关节位置似乎并不影响腓肠肌拉伸计划后踝关节背屈ROM的增加。
Context: Gastrocnemius stretching exercises often are prescribed as part of the treatment program for patients with overuse injuries associated with limited ankle dorsiflexion. However, little is known about how the position of the subtalar joint during gastrocnemius stretching affects ankle dorsiflexion range of motion (ROM).Objective: To determine the effect of subtalar joint position during gastrocnemius stretching on ankle dorsiflexion ROM.Design: This study was a 3-way mixed-model design. The 3 factors were subtalar joint position (supinated, pronated), lower extremity (experimental, control), and time (pretest, posttest). Lower extremity and time were the repeated measures.Setting: University research laboratory.Patients or Other Participants: Thirty-three healthy volunteers (29 women, 4 men).Intervention(s): Participants performed a gastrocnemius stretching exercise 2 times daily for 3 weeks with the subtalar joint of the randomly assigned experimental side (dominant or nondominant) in the randomly assigned position (supination or pronation). The contralateral lower extremity served as the control.Main Outcome Measure(s): Before and after the 3-week gastrocnemius stretching program, we used goniometers; to measure ankle dorsiflexion ROM in weight-bearing and non-weight-bearing positions with the subtalar joint positioned in anatomic 0 degrees.Results: Ankle dorsiflexion ROM measured in weight-bearing and non-weight-bearing positions increased after the gastrocnemius stretching program (P = .034 and .003, respectively), but the increase in ROM did not differ based on subtalar joint position (P = .775 and .831, respectively).Conclusions: Subtalar joint position did not appear to influence gains in ankle dorsiflexion ROM after a gastrocnemius stretching program in healthy volunteers.