Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance

Introduction: The Heart Rate Performance Curve (HRPC) is neither linear nor uniform and related to ß1-adrenoceptor sensitivity. As aging and exercise influence ß1-adrenoceptors we suggested age, sex and performance effects on the HRPC. Aim of the study was to examine the effects of aging on the defl...

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Main Authors: Philipp Birnbaumer, Heimo Traninger, Andrea Borenich, Markus Falgenhauer, Robert Modre-Osprian, Hanns Harpf, Peter Hofmann
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-04-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpubh.2020.00098/full
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author Philipp Birnbaumer
Heimo Traninger
Andrea Borenich
Markus Falgenhauer
Robert Modre-Osprian
Hanns Harpf
Peter Hofmann
author_facet Philipp Birnbaumer
Heimo Traninger
Andrea Borenich
Markus Falgenhauer
Robert Modre-Osprian
Hanns Harpf
Peter Hofmann
author_sort Philipp Birnbaumer
collection DOAJ
description Introduction: The Heart Rate Performance Curve (HRPC) is neither linear nor uniform and related to ß1-adrenoceptor sensitivity. As aging and exercise influence ß1-adrenoceptors we suggested age, sex and performance effects on the HRPC. Aim of the study was to examine the effects of aging on the deflection of the HRPC in maximal incremental cycle ergometer exercise (CE) in a large cohort of healthy subjects.Methods: Heart rate (HR) data of 2,980 men (51 ± 15 years) and 1,944 women (52 ± 14 years) were classified into age groups (≤20 up to >80 years). We analyzed age and performance (Plow 25%-quartile and Phigh 75%-quartile of age predicted power) effects on HRmax and on the degree (k) and the type (regular downward deflection k > 0.1, linear −0.1 ≤ k ≤ 0.1 and atypical upward deflection k < −0.1) of the HRPC.Results:k-values decreased significantly with age in men and women and were significantly higher in women. Atypical HRPC's increased by a linear trend from ≤20 to 70 years (m) respectively 80 years (w) from 10 to 43% (m) and 9 to 30% (w). HRmax of all age groups was lower in Plow and overall number of atypical HRPC's was 21% (m) and 16% (w) higher compared to Phigh.Conclusion: Aging increased the number of atypical HRPC's with upward deflection in CE tests, which influences exercise intensity prescription especially when using fixed percentages of HRmax. Changes in HRPC's were affected by sex and performance, where women generally and subjects with higher performance presented less atypical HRPC's even at older age.
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spelling doaj.art-6a6a614a409e4e0798406bb81a5145712022-12-21T19:06:59ZengFrontiers Media S.A.Frontiers in Public Health2296-25652020-04-01810.3389/fpubh.2020.00098528919Heart Rate Performance Curve Is Dependent on Age, Sex, and PerformancePhilipp Birnbaumer0Heimo Traninger1Andrea Borenich2Markus Falgenhauer3Robert Modre-Osprian4Hanns Harpf5Peter Hofmann6Exercise Physiology, Training & Training Therapy Research Group, Institute of Sports Science, University of Graz, Graz, AustriaZARG Centre for Outpatient Rehabilitation, Graz, AustriaDepartment of Production and Operations Management, University of Graz, Graz, AustriaCenter for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Graz, AustriaCenter for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Graz, AustriaZARG Centre for Outpatient Rehabilitation, Graz, AustriaExercise Physiology, Training & Training Therapy Research Group, Institute of Sports Science, University of Graz, Graz, AustriaIntroduction: The Heart Rate Performance Curve (HRPC) is neither linear nor uniform and related to ß1-adrenoceptor sensitivity. As aging and exercise influence ß1-adrenoceptors we suggested age, sex and performance effects on the HRPC. Aim of the study was to examine the effects of aging on the deflection of the HRPC in maximal incremental cycle ergometer exercise (CE) in a large cohort of healthy subjects.Methods: Heart rate (HR) data of 2,980 men (51 ± 15 years) and 1,944 women (52 ± 14 years) were classified into age groups (≤20 up to >80 years). We analyzed age and performance (Plow 25%-quartile and Phigh 75%-quartile of age predicted power) effects on HRmax and on the degree (k) and the type (regular downward deflection k > 0.1, linear −0.1 ≤ k ≤ 0.1 and atypical upward deflection k < −0.1) of the HRPC.Results:k-values decreased significantly with age in men and women and were significantly higher in women. Atypical HRPC's increased by a linear trend from ≤20 to 70 years (m) respectively 80 years (w) from 10 to 43% (m) and 9 to 30% (w). HRmax of all age groups was lower in Plow and overall number of atypical HRPC's was 21% (m) and 16% (w) higher compared to Phigh.Conclusion: Aging increased the number of atypical HRPC's with upward deflection in CE tests, which influences exercise intensity prescription especially when using fixed percentages of HRmax. Changes in HRPC's were affected by sex and performance, where women generally and subjects with higher performance presented less atypical HRPC's even at older age.https://www.frontiersin.org/article/10.3389/fpubh.2020.00098/fullheart rate deflectionß1-receptor sensitivityintensity prescriptionsex differencesmaximal heart rateaging
spellingShingle Philipp Birnbaumer
Heimo Traninger
Andrea Borenich
Markus Falgenhauer
Robert Modre-Osprian
Hanns Harpf
Peter Hofmann
Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
Frontiers in Public Health
heart rate deflection
ß1-receptor sensitivity
intensity prescription
sex differences
maximal heart rate
aging
title Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
title_full Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
title_fullStr Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
title_full_unstemmed Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
title_short Heart Rate Performance Curve Is Dependent on Age, Sex, and Performance
title_sort heart rate performance curve is dependent on age sex and performance
topic heart rate deflection
ß1-receptor sensitivity
intensity prescription
sex differences
maximal heart rate
aging
url https://www.frontiersin.org/article/10.3389/fpubh.2020.00098/full
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AT hannsharpf heartrateperformancecurveisdependentonagesexandperformance
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