使用心率和耗氧量对心率转折点进行数学建模与表达。

Mathematical Modeling and Expression of Heart Rate Deflection Point using Heart Rate and Oxygen Consumption.

作者信息

Baker Kayla M, Fukuda David H, Church David D, LA Monica Michael B, Beyer Kyle S, Hoffman Jay R, Stout Jeffrey R

机构信息

Department of Educational and Human Sciences, University of Central Florida, Orlando, FL, USA.

出版信息

Int J Exerc Sci. 2017 Jul 1;10(4):592-603. doi: 10.70252/JCNX1690. eCollection 2017.

DOI:10.70252/JCNX1690

PMID:28674603

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5466412/

Abstract

Heart rate deflection point (HRDP) can be determined through different mathematical-modeling procedures, such as bi-segmental linear regression (2SEG) or maximal distance model (Dmax). The purpose was to compare heart rate (HR) and oxygen consumption (VO) at HRDP when using 2SEG and Dmax, and to examine their relationships with respiratory compensation point (RCP) and running performance. Nineteen participants completed a graded exercise test (GXT), to determine HRDP and RCP, and a 5km treadmill time trial (5K). No differences were found in HR or VO when comparing HRDP, HRDP, and RCP. Strong correlations were found between HRDP, HRDP, and RCP when using HR and VO. No relationships were found between 5K and HR at HRDP or RCP; however, strong relationships were found with VO2. While 2SEG and Dmax may be interchangeable in determining HRDP, VO at HRDP and RCP yielded stronger relationships to 5K than HR. Therefore, VO at HRDP may be a better predictor of running performance than HR.

摘要

心率偏转点（HRDP）可通过不同的数学建模程序来确定，如双段线性回归（2SEG）或最大距离模型（Dmax）。目的是比较使用2SEG和Dmax时HRDP处的心率（HR）和耗氧量（VO），并研究它们与呼吸补偿点（RCP）和跑步成绩的关系。19名参与者完成了一项分级运动测试（GXT）以确定HRDP和RCP，以及一项5公里跑步机计时赛（5K）。比较HRDP、HRDP和RCP时，未发现HR或VO存在差异。使用HR和VO时，发现HRDP、HRDP和RCP之间存在强相关性。在HRDP或RCP处，未发现5K与HR之间存在关系；然而，发现与VO2之间存在强关系。虽然在确定HRDP时2SEG和Dmax可能是可互换的，但HRDP和RCP处的VO与5K的关系比HR更强。因此，HRDP处的VO可能比HR更能预测跑步成绩。