Analysis of Heart Rate and Oxygen Uptake Kinetics Studied by Two Different Pseudo-Random Binary Sequence Work Rate Amplitudes

U Drescher; J Koschate; T Schiffer; Stefan Schneider; U Hoffmann

doi:10.1016/j.resp.2017.03.001

Back

Analysis of Heart Rate and Oxygen Uptake Kinetics Studied by Two Different Pseudo-Random Binary Sequence Work Rate Amplitudes

Journal article

Open access

Peer reviewed

Analysis of Heart Rate and Oxygen Uptake Kinetics Studied by Two Different Pseudo-Random Binary Sequence Work Rate Amplitudes

U Drescher, J Koschate, T Schiffer, Stefan Schneider and U Hoffmann

Respiratory Physiology & Neurobiology, Vol.240, pp.70-80

2017

DOI: https://doi.org/10.1016/j.resp.2017.03.001

Files and links (2)

pdf

PDF - Author's Accepted Version (Open Access)2.04 MBDownload View

Accepted VersionPDF - Author Accepted Version (Open Access)CC BY-NC-ND V4.0, Open Access

url

https://doi.org/10.1016/j.resp.2017.03.001View

Published Version

Abstract

kinetics analysis

oxygen uptake

venous return

physiological modelling

moderate exercise intensity

Purpose: The aim of the study was to compare the kinetics responses of heart rate (HR), pulmonary (V'O2pulm) and predicted muscular (V'O2musc) oxygen uptake between two different pseudo-random binary sequence (PRBS) work rate (WR) amplitudes both below anaerobic threshold. Methods: Eight healthy individuals performed two PRBS WR protocols implying changes between 30W to 80W and between 30W to 110W. HR and V'O2pulm were measured beat-to-beat and breath-by-breath, respectively. V'O2musc was estimated applying the approach of Hoffmann et al. (Eur J Appl Physiol 113: 1745-1754, 2013) considering a circulatory model for venous return and cross-correlation functions (CCF) for the kinetics analysis. Results: HR and V'O2musc kinetics seem to be independent of WR intensity (p > 0.05). V'O2pulm kinetics show prominent differences in the lag of the CCF maximum (39±9s; 31±4s; p < 0.05). Conclusions: A mean difference of 14 W between the PRBS WR amplitudes impacts venous return significantly, while HR and V'O2musc kinetics remain unchanged.

Details

Title: Analysis of Heart Rate and Oxygen Uptake Kinetics Studied by Two Different Pseudo-Random Binary Sequence Work Rate Amplitudes
Authors: U Drescher (Author) - German Sport University Cologne, Germany
J Koschate (Author) - German Sport University Cologne, Germany
T Schiffer (Author) - German Sport University Cologne, Germany
Stefan Schneider (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
U Hoffmann (Author) - German Sport University Cologne, Germany
Publication details: Respiratory Physiology & Neurobiology, Vol.240, pp.70-80
Publisher: Elsevier BV
Date published: 2017
DOI: 10.1016/j.resp.2017.03.001
ISSN: 1569-9048
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99451275902621
Output Type: Journal article

Metrics

51 File views/ downloads

1074 Record Views

6 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Physiology; Respiratory System