title: Recommendations for aerobic endurance training based on subjective ratings of perceived exertion in healthy seniors.
abstract: The study investigated physiological responses during 2-km walking at a certain intensity of a previously performed maximal exercise test where moderate perceived exertion was reported. Twenty seniors were examined by an incremental walking treadmill test to obtain maximal oxygen uptake (VO2max). A submaximal 2-km walking test was applied 1 wk later. The corresponding moderate perceived exertion (4 on the CR-10 scale) during the VO2max test was applied to the 2-km treadmill test. Moderate exertion (mean rating of perceived exertion [RPE]: 4 ± 1) led to 76% ± 8% of VO2max and 79% ± 6% of maximal heart rate. RPE values drifted with a significant time effect (p = .001, η(p) = .58) during the 2-km test from 3 ± 0.7 to 4.6 ± 0.8. Total energy expenditure (EE) was 3.3 ± 0.5 kcal/kg. No gender differences in ventilatory, heart-rate, or EE data occurred. Brisk walking at moderate RPE of 3-5 would lead to a beneficial physiological response during endurance training and a weekly EE of nearly 1,200 kcal when exercising 5 times/wk for 30 min.
authors: Institute of Exercise and Health Sciences, University of Basel, Basel, Switzerland.
authors: Lars
authors: L
authors: Donath
authors: Lukas
authors: L
authors: Zahner
authors: Mareike
authors: M
authors: Cordes
authors: Henner
authors: H
authors: Hanssen
authors: Aarno
authors: A
authors: Schmidt-Trucksäss
authors: Oliver
authors: O
authors: Faude
mesh_terms: D000368:Aged; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption / Q000502:physiology*; D010465:Perception / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D016138:Walking