Effects of age and counseling on the cardiorespiratory response to graded exercise

Medicine and Science in Sports and Exercise
Michael D NelsonR Dlin

Abstract

To report on the normative cardiorespiratory response to a graded exercise test in a group of healthy males, 30-69 yr of age (n = 816), and to test the effect of health and fitness counseling on cardiorespiratory fitness in a subset of healthy subjects (n = 87, mean follow-up = 7.3 yr) who returned for at least five subsequent visits. As part of a preventive medicine service, each subject performed an incremental exercise test to exhaustion on a treadmill. Peak oxygen consumption, ventilatory threshold, HRmax, and peak oxygen pulse were the primary dependent measures recorded from each test. Both analyses (cross-sectional data followed by longitudinal data) showed a significant decline in peak oxygen consumption with age (0.03 and 0.04 L x min(-1) x yr(-1)), which was related to an age-associated decline in HRmax (0.97 and 0.81 beats per year) and peak oxygen pulse (0.13 and 0.08 mL per beat per year). Ventilatory threshold was also influenced by age, declining in both the cross-sectional (0.02 L x min(-1) x yr(-1)) and the longitudinal (0.03 L x min(-1) x yr(-1)) comparisons. However, when ventilatory threshold and peak oxygen pulse were analyzed for changes between the initial and the follow-up (7.3 yr) visits, no difference ...Continue Reading

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Citations

Nov 25, 2014·Expert Review of Cardiovascular Therapy·Davy Paap, Tim Takken
Feb 17, 2015·Scandinavian Journal of Medicine & Science in Sports·S M DyrstadB H Hansen
Aug 26, 2017·Sleep & Breathing = Schlaf & Atmung·Bruno Teixeira BarbosaMaria do Socorro Brasileiro-Santos
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Jun 10, 2016·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Stewart R PetersenNigel A S Taylor
Jul 31, 2020·Journal of Applied Physiology·Thomas BeltrameAparecida Maria Catai
Dec 15, 2018·Medicine and Science in Sports and Exercise·Raphael KnaierArno Schmidt-TRUCKSäSS
Jun 24, 2021·The Journal of Experimental Biology·Elaine E Kozma, Herman Pontzer

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