Effect of experimentally induced muscle pain on neuromuscular control of force production

IF 1.6 3区心理学 Q4 NEUROSCIENCES

Human Movement Science Pub Date : 2024-04-17 DOI:10.1016/j.humov.2024.103219

Manoela Vieira Sousa , Márcio Goethel , Klaus M. Becker , Fernando Diefenthaeler , Ricardo J. Fernandes , Isabella de Santana Toro Batista , João Paulo Vilas-Boas , Ulysses Ervilha

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引用次数: 0

Abstract

Purpose

Neural and peripheral effects of induced muscle pain on explosive force production were investigated.

Methods

Nine participants performed two maximal, six explosive, and six electrical stimulations induced (twitches and octets) isometric knee extensions before and after (15 min of rest) receiving an intramuscular injection of hypertonic saline (pain inducer) or isotonic (placebo) infusions in two laboratory visits separated by 7 days.

Results

It was observed a reduction of peak torque production in maximal voluntary contraction in both conditions (9.3 and 3.3% for pain and placebo, respectively) and in the rate of torque development in placebo (7%). There was an increase in the rate of torque development for twitch and octets (10.5 and 15.8%, respectively) in the pain condition and peak torque for twitch (12%) in both conditions (as did the total rate of torque development for octets).

Conclusion

Force production decreases and increases during voluntary and involuntary contractions, respectively, suggesting that acute pain impairs force production via central mechanisms.

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实验诱导的肌肉疼痛对神经肌肉控制力量产生的影响

方法九名参与者在接受肌肉注射高渗盐水（疼痛诱导剂）或等渗盐水（安慰剂）前后（休息 15 分钟）进行了两次最大伸膝、六次爆发力和六次电刺激诱导（抽搐和八次）等长伸膝运动，两次实验室访问相隔 7 天。结果发现，在两种情况下，最大自主收缩时产生的峰值扭矩都有所下降（疼痛和安慰剂分别为 9.3% 和 3.3%），安慰剂的扭矩发展速度也有所下降（7%）。结论在自主收缩和非自主收缩时，力的产生分别会减少和增加，这表明急性疼痛会通过中枢机制损害力的产生。

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

Human Movement Science 医学-神经科学

CiteScore

3.80

自引率

4.80%

发文量

审稿时长

42 days

期刊介绍： Human Movement Science provides a medium for publishing disciplinary and multidisciplinary studies on human movement. It brings together psychological, biomechanical and neurophysiological research on the control, organization and learning of human movement, including the perceptual support of movement. The overarching goal of the journal is to publish articles that help advance theoretical understanding of the control and organization of human movement, as well as changes therein as a function of development, learning and rehabilitation. The nature of the research reported may vary from fundamental theoretical or empirical studies to more applied studies in the fields of, for example, sport, dance and rehabilitation with the proviso that all studies have a distinct theoretical bearing. Also, reviews and meta-studies advancing the understanding of human movement are welcome. These aims and scope imply that purely descriptive studies are not acceptable, while methodological articles are only acceptable if the methodology in question opens up new vistas in understanding the control and organization of human movement. The same holds for articles on exercise physiology, which in general are not supported, unless they speak to the control and organization of human movement. In general, it is required that the theoretical message of articles published in Human Movement Science is, to a certain extent, innovative and not dismissible as just "more of the same."