Plantar flexor strength and size decrease following single-leg disuse in uninjured adults: A meta-analysis.

IF 1.3 4区医学 Q4 PHYSIOLOGY

Clinical Physiology and Functional Imaging Pub Date : 2024-11-04 DOI:10.1111/cpf.12912

Nicholas Preobrazenski, Joel Seigel, Ian Janssen, Sandra Halliday, Chris McGlory

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引用次数: 0

Abstract

Introduction: Plantar flexors play a pivotal role in human locomotion and balance. Several original research studies and systematic reviews have characterised the impact of single-leg disuse on plantar flexor strength and size. However, no meta-analysis has quantified the effects of single-leg disuse on changes in plantar flexor strength and size in uninjured adults.

Aim: To quantify changes in plantar flexor strength and size in response to single-leg disuse.

Methods: Data were extracted from 19 studies captured in our previous systematic review on studies that employed a unilateral lower limb immobilisation model (cast or brace) and were published up to January 30, 2022. Random-effects meta-analyses were performed on original research studies reporting measures of plantar flexor strength (isometric, isokinetic, or repetition maximum) and size (magnetic resonance imaging or computed tomography) in uninjured adults.

Results: Single-leg disuse decreased plantar flexor strength (Hedges g_av = -0.71 [95% confidence interval: -0.93, -0.48], p < 0.001, 7-28 days, N = 16 studies, n = 121 participants including ≥13 females, ages 19-29) and plantar flexor size (-0.33 [-0.50, -0.15], p < 0.001, 14-35 days, N = 6, n = 49, 10 females, ages 22-27) across all durations of disuse.

Discussion: Single-leg disuse decreases plantar flexor strength and size in uninjured adults. This work adds to recent meta-analytic findings demonstrating the declines in knee extensors strength and size following single-leg disuse. The paucity of female and participants >30 years old in the single-leg disuse literature examining plantar flexors represents a priority of future work.

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未受伤的成年人单腿废用后跖屈肌力量和大小下降：荟萃分析

导言跖屈肌在人体运动和平衡中发挥着关键作用。一些原创性研究和系统性综述描述了单腿废用对跖屈肌力量和大小的影响。目的：量化单腿废用对跖屈肌力量和大小变化的影响：从我们之前的系统综述中捕获的 19 项研究中提取数据，这些研究采用了单侧下肢固定模式（石膏或支架），发表时间截至 2022 年 1 月 30 日。随机效应荟萃分析对报告未受伤成年人跖屈肌力量（等长、等动或重复最大值）和大小（磁共振成像或计算机断层扫描）测量结果的原始研究进行了分析：结果：单腿废用会降低跖屈肌的力量（海德斯伽夫=-0.71 [95%置信区间：-0.93，-0.48]，P单腿废用会降低未受伤成年人的跖屈肌力量和大小。最近的荟萃分析结果表明，单腿废用后，膝关节伸肌的力量和大小都会下降。在单腿废用的文献中，很少有女性和年龄大于 30 岁的参与者对跖屈肌进行研究，这也是未来工作的重点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical Physiology and Functional Imaging 医学-生理学

CiteScore

3.40

自引率

5.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Clinical Physiology and Functional Imaging publishes reports on clinical and experimental research pertinent to human physiology in health and disease. The scope of the Journal is very broad, covering all aspects of the regulatory system in the cardiovascular, renal and pulmonary systems with special emphasis on methodological aspects. The focus for the journal is, however, work that has potential clinical relevance. The Journal also features review articles on recent front-line research within these fields of interest. Covered by the major abstracting services including Current Contents and Science Citation Index, Clinical Physiology and Functional Imaging plays an important role in providing effective and productive communication among clinical physiologists world-wide.