Biomechanical Insights Into Rotary Inertial Devices vs. Traditional Resistance Training in Half-Squats: A Comparative Analysis of Force, Velocity, and Displacement.

IF 2.5 2区 医学 Q2 SPORT SCIENCES
Carlos Galiano, Francisco Javier Nuñez, Stuart McErlain-Naylor, Pablo Floria
{"title":"Biomechanical Insights Into Rotary Inertial Devices vs. Traditional Resistance Training in Half-Squats: A Comparative Analysis of Force, Velocity, and Displacement.","authors":"Carlos Galiano, Francisco Javier Nuñez, Stuart McErlain-Naylor, Pablo Floria","doi":"10.1519/JSC.0000000000005073","DOIUrl":null,"url":null,"abstract":"<p><strong>Abstract: </strong>Galiano, C, Nuñez, FJ, McErlain-Naylor, S, and Floria, P. Biomechanical insights into rotary inertial devices vs. traditional resistance training in half-squats: a comparative analysis of force, velocity, and displacement. J Strength Cond Res XX(X): 000-000, 2024-Although rotary inertial devices (RIDs) have been used in resistance training for many years, there is still limited knowledge of the specific biomechanics that distinguish them from traditional resistance training (TRT) methods. The aim of this study is to compare the serial data of force, velocity, and displacement over time in half-squats performed with both devices when the intensity is based on the concentric mean propulsive velocity (MPV). A total of 20 experienced subjects completed 3 sets of 6 half-squats using both RID and TRT. To ensure a similar load intensity, the concentric phase was matched according to the MPV. Measurements of vertical ground reaction force (vGRF), velocity, and displacement were taken for each repetition of the half-squat. The results showed that TRT exhibited a higher vGRF than RID during 0-57% of the concentric phase but a lower vGRF during 74-93% (p < 0.001). Eccentric vGRF was also higher for TRT throughout much of the eccentric phase (0-13%, 38-54%, and 68-100%, p < 0.001). Rotary inertial device demonstrated faster vertical velocity than TRT during 31-52% of the concentric phase and 1-40% of the eccentric phase (p < 0.001). However, during the latter part of the concentric phase (72-99%), TRT exhibited faster vertical velocity compared with RID. In addition, TRT resulted in a higher vertical position than RID at the end (67-100%) of the concentric phase (p = 0.036). Coaches should be aware of these biomechanical differences when prescribing resistance training with RID or TRT, as even with similar loads, distinct patterns in vGRF and velocity over time can lead to different effects on the athlete.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Strength and Conditioning Research","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1519/JSC.0000000000005073","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"SPORT SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract: Galiano, C, Nuñez, FJ, McErlain-Naylor, S, and Floria, P. Biomechanical insights into rotary inertial devices vs. traditional resistance training in half-squats: a comparative analysis of force, velocity, and displacement. J Strength Cond Res XX(X): 000-000, 2024-Although rotary inertial devices (RIDs) have been used in resistance training for many years, there is still limited knowledge of the specific biomechanics that distinguish them from traditional resistance training (TRT) methods. The aim of this study is to compare the serial data of force, velocity, and displacement over time in half-squats performed with both devices when the intensity is based on the concentric mean propulsive velocity (MPV). A total of 20 experienced subjects completed 3 sets of 6 half-squats using both RID and TRT. To ensure a similar load intensity, the concentric phase was matched according to the MPV. Measurements of vertical ground reaction force (vGRF), velocity, and displacement were taken for each repetition of the half-squat. The results showed that TRT exhibited a higher vGRF than RID during 0-57% of the concentric phase but a lower vGRF during 74-93% (p < 0.001). Eccentric vGRF was also higher for TRT throughout much of the eccentric phase (0-13%, 38-54%, and 68-100%, p < 0.001). Rotary inertial device demonstrated faster vertical velocity than TRT during 31-52% of the concentric phase and 1-40% of the eccentric phase (p < 0.001). However, during the latter part of the concentric phase (72-99%), TRT exhibited faster vertical velocity compared with RID. In addition, TRT resulted in a higher vertical position than RID at the end (67-100%) of the concentric phase (p = 0.036). Coaches should be aware of these biomechanical differences when prescribing resistance training with RID or TRT, as even with similar loads, distinct patterns in vGRF and velocity over time can lead to different effects on the athlete.

旋转惯性装置与传统半深蹲阻力训练的生物力学见解:力、速度和位移的比较分析。
摘要:Galiano, C, Nuñez, FJ, McErlain-Naylor, S和Floria, P.旋转惯性装置与传统半深蹲阻力训练的生物力学见解:力、速度和位移的比较分析。虽然旋转惯性装置(rid)已经在阻力训练中使用了多年,但是将其与传统阻力训练(TRT)方法区分出来的具体生物力学知识仍然有限。本研究的目的是比较两种器械在以同心平均推进速度(MPV)为强度时进行半深蹲时的力、速度和位移随时间的序列数据。共有20名有经验的受试者使用RID和TRT完成了3组6个半深蹲。为了保证相似的负载强度,根据MPV匹配同心相位。测量垂直地面反作用力(vGRF),速度和位移,每次重复半深蹲。结果表明,TRT在0 ~ 57%的同心相位vGRF高于RID,但在74 ~ 93%的同心相位vGRF低于RID (p < 0.001)。在偏心期的大部分时间,TRT的偏心期vGRF也较高(0-13%,38-54%和68-100%,p < 0.001)。旋转惯性装置在31-52%同心相位和1-40%偏心相位的垂直速度比TRT快(p < 0.001)。但在同心相后期(72-99%),TRT的垂直速度比RID快。此外,TRT在同心相末端(67-100%)的垂直位置高于RID (p = 0.036)。当使用RID或TRT进行阻力训练时,教练应该意识到这些生物力学差异,因为即使在相似的负荷下,随着时间的推移,vGRF和速度的不同模式也会对运动员产生不同的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
6.70
自引率
9.40%
发文量
384
审稿时长
3 months
期刊介绍: The editorial mission of The Journal of Strength and Conditioning Research (JSCR) is to advance the knowledge about strength and conditioning through research. A unique aspect of this journal is that it includes recommendations for the practical use of research findings. While the journal name identifies strength and conditioning as separate entities, strength is considered a part of conditioning. This journal wishes to promote the publication of peer-reviewed manuscripts which add to our understanding of conditioning and sport through applied exercise science.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信