Objective and Subjective Assessments of Exercise Burden in Masters Athletes Are Poorly Correlated

Author:

Lewis Jennifer,Bentley Robert F.,Connelly Kim A.,Dorian Paul,Goodman Jack M.ORCID

Abstract

ABSTRACTAccurate quantification of exercise volume (burden) is crucial for understanding links between exercise and cardiovascular outcomes in older endurance athletes (EA). Exercise burden, an integral of intensity and duration (MET·min), is typically determined from subjective self-reports but has uncertain accuracy. We studied 40 EAs (41 to 69 yrs., 50% female) with >10 yrs. training history, during a typical outdoor cycling training session (42 km). Subjective self-reports were related to cardiac (HR·min) and metabolic (MET·min) components of exercise burden, monitored continuously. Subjective self-reports were highly variable and underestimated objective metrics of exercise intensity. Discordance was observed between metabolic and cardiac burden as less fit individuals accrued greater cardiac (14039±2649 vs. 11784±1132 HR·min, P<0.01) but lower metabolic burden (808±59 vs. 858±61 MET·min,P<0.05) vs. higher fit EA. Caution is advised in interpreting MET·min estimates from self-reports, urging objective measurement of cardiac burden for further insights into the risk-benefit relationship of long-term exercise.

Publisher

Cold Spring Harbor Laboratory

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3