The acute effect of wearable resistance placement on change of direction performance in elite netball players

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-02-14 DOI:10.1002/ejsc.12081

Chloe Ryan, Aaron M. Uthoff, C. McKenzie, John Cronin

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Abstract

The aim of this study was to determine the acute effects of wearable resistance forearm (WRf) loading versus shank (WRs) loading on change of direction (COD) performance in netball athletes. Ten elite female netball athletes (age: 24.9 ± 5.0 years, height: 180.1 ± 6.5 cm, weight: 81.3 ± 15.0 kg) participated in this within‐subject repeated measures study under three conditions: (1) no load (NL), (2) WRs and (3) WRf, both wearable resistance conditions loaded with 1% body mass on each limb. Athletes performed a modified 5‐0‐5 COD test with additional timing splits and inertial measurement units placed in their shoes. Total time was significantly longer for both WR conditions with a small effect compared to NL (p < 0.05, ES = 0.22–0.25). The greatest differences between WRs and WRf as compared to NL were in the acceleration phase with moderate effect sizes (0–2 m) (p < 0.05, ES = −0.67–0.79). Both loading conditions had moderate to large significant effects on peak deceleration (ES = 0.56–0.82) and maximum speed (ES = −0.50–0.60). No significant differences were observed between WR conditions. It appeared that WRs and WRs acutely affected COD performance and therefore might provide a potential training stimulus to elicit positive COD performance adaptations if used over an extended period of time. The choice of overload depended on the musculature that needed training.

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可穿戴阻力装置对精英无挡板篮球运动员变向能力的急性影响

本研究旨在确定可穿戴阻力前臂（WRf）加载与小腿（WRs）加载对无挡板篮球运动员变向（COD）表现的急性影响。十名优秀女子无挡板篮球运动员（年龄：24.9 ± 5.0 岁，身高：180.1 ± 6.5 厘米，体重：81.3 ± 15.0 千克）参加了这项受试者内重复测量研究，研究在三种条件下进行：(1) 无负荷 (NL)、(2) WRs 和 (3)WRf，这两种可穿戴阻力条件在每只肢体上的负荷均为体重的 1%。运动员进行的是经过修改的 5-0-5 COD 测试，并在鞋内放置了额外的计时分段和惯性测量单元。与 NL 相比，WR 条件下的总时间明显更长，但影响较小（P < 0.05，ES = 0.22-0.25）。WRs 和 WRf 与 NL 相比，最大的差异在于加速阶段（0-2 米）的中等效应大小（p < 0.05，ES = -0.67-0.79）。两种加载条件对峰值减速（ES = 0.56-0.82）和最大速度（ES = -0.50-0.60）都有中等到较大的显著影响。WR 条件之间没有观察到明显差异。看来，WR 和 WR 会对 COD 性能产生急性影响，因此，如果长期使用，可能会提供一种潜在的训练刺激，引起 COD 性能的积极适应。超负荷的选择取决于需要训练的肌肉组织。

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

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.