How does fatigue affect handstand balance? a non-linear approach to study fatigue influence in handstand performance.

IF 5.2 2区 医学 Q1 ENGINEERING, BIOMEDICAL Journal of NeuroEngineering and Rehabilitation Pub Date : 2024-09-27 DOI:10.1186/s12984-024-01442-6
Rafael Sabido, Fernando García-Aguilar, Carla Caballero, Francisco J Moreno
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Abstract

Background: The handstand is an essential skill in acrobatic sports. This skill requires the athlete to maintain an inverted upright stance with only the hands supported, which requires a great effort of muscular coordination and motor control. Several factors influence the ability to control the posture, including fatigue, which is a bit studied constraint of handstand performance.

Research question: With the aim to find out whether variability in movement control can be an indicator of fatigue, the present study was carried out.

Method: Fourteen male acrobatic gymnasts were required to perform handstands. The time series for analyzing variability were capturing using Force Platforms, which is a traditional laboratory instrument, and Inertial Measurement Units (IMU), which is a more recent and less widely used, but more accessible tool. For this purpose, an analysis of the amount of variability was carried out, using the standard deviation. And analysis of the structure of variability (or complexity), using Detrended Fluctuation Analysis (DFA) and Fuzzy Entropy (FuEn).

Results: Our results reveal that fatigue causes significant increases in the amount of variability in the medio-lateral axis on the force platform, and in the IMU located in the area of the L5 vertebra. These changes are accompanied by increased auto-correlation in the medio-lateral axis of the force platform, and more unpredictable behavior in the L5 IMU.

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疲劳如何影响倒立平衡?
背景介绍倒立是杂技运动中的一项基本技能。这项技能要求运动员在仅有双手支撑的情况下保持一个倒立的直立姿势,这需要极大的肌肉协调和运动控制能力。有几个因素会影响控制姿势的能力,其中包括疲劳,而疲劳是制约倒立成绩的一个重要因素:本研究旨在了解动作控制的可变性是否可以作为疲劳的指标:方法:要求 14 名男子杂技体操运动员进行倒立。分析变异性的时间序列是使用力平台(一种传统的实验室仪器)和惯性测量单元(IMU)采集的。为此,使用标准偏差对变异量进行了分析。此外,还利用去趋势波动分析(DFA)和模糊熵(FuEn)分析了变异性的结构(或复杂性):结果:我们的研究结果表明,疲劳会导致力平台内侧轴和位于 L5 椎体区域的 IMU 的变异量显著增加。伴随这些变化的是,力平台内外侧轴的自相关性增加,L5 IMU 的行为更加难以预测。
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来源期刊
Journal of NeuroEngineering and Rehabilitation
Journal of NeuroEngineering and Rehabilitation 工程技术-工程:生物医学
CiteScore
9.60
自引率
3.90%
发文量
122
审稿时长
24 months
期刊介绍: Journal of NeuroEngineering and Rehabilitation considers manuscripts on all aspects of research that result from cross-fertilization of the fields of neuroscience, biomedical engineering, and physical medicine & rehabilitation.
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