Effect of 12 weeks of detraining and retraining on the cardiorespiratory fitness in a competitive master athlete: a case study.

IF 3.2 3区 医学 Q2 PHYSIOLOGY
Frontiers in Physiology Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI:10.3389/fphys.2024.1508642
Romuald Lepers, Adrien Mater, Hervé Assadi, Nadège Zanou, Vincent Gremeaux, Nicolas Place
{"title":"Effect of 12 weeks of detraining and retraining on the cardiorespiratory fitness in a competitive master athlete: a case study.","authors":"Romuald Lepers, Adrien Mater, Hervé Assadi, Nadège Zanou, Vincent Gremeaux, Nicolas Place","doi":"10.3389/fphys.2024.1508642","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>This study examined the physiological effects of 12 weeks of detraining and retraining in a highly trained master triathlete (age 53.8 years).</p><p><strong>Methods: </strong>Variables associated with swimming, cycling, and running performance, including <math> <mrow><mover><mi>V</mi> <mo>˙</mo></mover> </mrow> </math> O<sub>2max</sub>, peak power output (PPO), gross cycling efficiency (CE), running maximal aerobic velocity (MAV), running economy (RE), muscle strength, and body composition were assessed before the last race of the season (baseline), after 12 weeks of detraining, and after 12 weeks of retraining.</p><p><strong>Results: </strong>Detraining resulted in a 9.1% and 10.9% decrease in relative <math> <mrow><mover><mi>V</mi> <mo>˙</mo></mover> </mrow> </math> O<sub>2max</sub> for cycling and running, respectively. PPO and MAV declined by 12.7% and 8.6%, respectively. After detraining, CE decreased by 6.2%, and RE was 22% higher than the baseline. The maximal strength capacity of the knee extensor muscles decreased by an average of 8.2%. Body fat percentage increased from 10.5% to 13.8%, while lean mass decreased by 2.2 kg. After retraining, almost all variables returned to baseline or even slightly increased, except RE and lean mass, which did not return to baseline.</p><p><strong>Conclusion: </strong>After 12 weeks of detraining, a lifelong master triathlete can regain his cardiorespiratory fitness (i.e., <math> <mrow><mover><mi>V</mi> <mo>˙</mo></mover> </mrow> </math> O<sub>2max</sub>) with 12 weeks of progressive and structured retraining, but his running economy and lean mass remain slightly depressed.</p>","PeriodicalId":12477,"journal":{"name":"Frontiers in Physiology","volume":"15 ","pages":"1508642"},"PeriodicalIF":3.2000,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11621217/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers in Physiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3389/fphys.2024.1508642","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"PHYSIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Purpose: This study examined the physiological effects of 12 weeks of detraining and retraining in a highly trained master triathlete (age 53.8 years).

Methods: Variables associated with swimming, cycling, and running performance, including V ˙ O2max, peak power output (PPO), gross cycling efficiency (CE), running maximal aerobic velocity (MAV), running economy (RE), muscle strength, and body composition were assessed before the last race of the season (baseline), after 12 weeks of detraining, and after 12 weeks of retraining.

Results: Detraining resulted in a 9.1% and 10.9% decrease in relative V ˙ O2max for cycling and running, respectively. PPO and MAV declined by 12.7% and 8.6%, respectively. After detraining, CE decreased by 6.2%, and RE was 22% higher than the baseline. The maximal strength capacity of the knee extensor muscles decreased by an average of 8.2%. Body fat percentage increased from 10.5% to 13.8%, while lean mass decreased by 2.2 kg. After retraining, almost all variables returned to baseline or even slightly increased, except RE and lean mass, which did not return to baseline.

Conclusion: After 12 weeks of detraining, a lifelong master triathlete can regain his cardiorespiratory fitness (i.e., V ˙ O2max) with 12 weeks of progressive and structured retraining, but his running economy and lean mass remain slightly depressed.

12周的去训练和再训练对竞技体育大师级运动员心肺功能的影响:个案研究。
目的:本研究考察了一名训练有素的铁人三项大师(53.8岁)12周的去训练和再训练的生理影响。方法:在本赛季最后一场比赛前(基线)、12周去训练后和12周再训练后,评估与游泳、自行车和跑步表现相关的变量,包括V˙O2max、峰值功率输出(PPO)、总循环效率(CE)、跑步最大有氧速度(MAV)、跑步经济性(RE)、肌肉力量和身体成分。结果:去训练导致骑车和跑步的相对V˙O2max分别下降9.1%和10.9%。PPO和MAV分别下降12.7%和8.6%。去训练后,CE下降6.2%,RE比基线高22%。膝关节伸肌的最大力量容量平均下降8.2%。体脂率从10.5%提高到13.8%,瘦质量下降2.2 kg。再训练后,除了RE和lean mass没有恢复到基线水平外,几乎所有的变量都恢复到基线水平,甚至略有增加。结论:经过12周的退训,铁人三项运动终身高手在经过12周渐进式、结构化的再训练后,心肺功能恢复(即V˙O2max),但其跑步经济性和瘦质量仍略有下降。
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
6.50
自引率
5.00%
发文量
2608
审稿时长
14 weeks
期刊介绍: Frontiers in Physiology is a leading journal in its field, publishing rigorously peer-reviewed research on the physiology of living systems, from the subcellular and molecular domains to the intact organism, and its interaction with the environment. Field Chief Editor George E. Billman at the Ohio State University Columbus is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide.
×
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