The validity of a head-worn inertial sensor for measurements of swimming performance

J. Butterfield, J. Tallent, S. Patterson, Owen Jeffries, Louis P. Howe, M. Waldron
{"title":"The validity of a head-worn inertial sensor for measurements of swimming performance","authors":"J. Butterfield, J. Tallent, S. Patterson, Owen Jeffries, Louis P. Howe, M. Waldron","doi":"10.1051/sm/2019027","DOIUrl":null,"url":null,"abstract":"The validity of the TritonWear® device to measure swimming performance was investigated, with a pre-determined analytical goal of 6%. Twenty youth swimmers completed a 100 m swim in a 25 m pool, swimming breaststroke or freestyle wearing the TritonWear® device, whilst being filmed above and below water with three cameras. 95% limits of agreement (95% LoA) and coefficient of variation (CV%) were used to calculate error. Systematic biases (P < 0.05) were found between the two systems only for distance per stroke during breaststroke. Freestyle metrics agreement ranged between 1.06% and 10.40% CV, except for distance per stroke (CV = 14.64%), and time underwater (CV = 18.15%). Breaststroke metrics ranged between 0.95% and 13.74% CV, except for time underwater (CV = 25.76%). The smallest errors were found for split-times, speed, stroke-count and stroke-rate, across both strokes (all < 5% CV). The TritonWear® can be used for basic metrics of performance, such as split-time and speed but the error of more complex measurements, such as time underwater or turn-times, renders them unable to identify typical performance changes.","PeriodicalId":121091,"journal":{"name":"Movement & Sport Sciences - Science & Motricité","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Movement & Sport Sciences - Science & Motricité","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1051/sm/2019027","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4

Abstract

The validity of the TritonWear® device to measure swimming performance was investigated, with a pre-determined analytical goal of 6%. Twenty youth swimmers completed a 100 m swim in a 25 m pool, swimming breaststroke or freestyle wearing the TritonWear® device, whilst being filmed above and below water with three cameras. 95% limits of agreement (95% LoA) and coefficient of variation (CV%) were used to calculate error. Systematic biases (P < 0.05) were found between the two systems only for distance per stroke during breaststroke. Freestyle metrics agreement ranged between 1.06% and 10.40% CV, except for distance per stroke (CV = 14.64%), and time underwater (CV = 18.15%). Breaststroke metrics ranged between 0.95% and 13.74% CV, except for time underwater (CV = 25.76%). The smallest errors were found for split-times, speed, stroke-count and stroke-rate, across both strokes (all < 5% CV). The TritonWear® can be used for basic metrics of performance, such as split-time and speed but the error of more complex measurements, such as time underwater or turn-times, renders them unable to identify typical performance changes.
头戴式惯性传感器测量游泳性能的有效性
TritonWear®设备测量游泳成绩的有效性进行了调查,预先确定的分析目标为6%。20名青少年游泳运动员在25米的游泳池中完成了100米的游泳,游泳蛙泳或自由泳,穿着TritonWear®设备,同时用三台摄像机拍摄水上和水下。采用95%一致限(95% LoA)和变异系数(CV%)计算误差。系统偏差(P < 0.05)在两种系统之间发现,只有在蛙泳的每一次距离。除了每次划水距离(CV = 14.64%)和水下时间(CV = 18.15%)外,自由泳参数的一致性在1.06%至10.40% CV之间。蛙泳的CV值在0.95%到13.74%之间,除了水下时间(CV = 25.76%)。在两种笔划中,分划时间、速度、笔划数和笔划率的误差最小(均< 5% CV)。TritonWear®可用于基本的性能指标,如分裂时间和速度,但更复杂的测量误差,如水下时间或周转时间,使其无法识别典型的性能变化。
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
自引率
0.00%
发文量
0
×
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