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Heart rate variability reproducibility during exercise / Melitta McNarry; Michael Lewis

Physiological Measurement, Volume: 33, Issue: 7, Pages: 1123 - 1133

Swansea University Authors: Melitta, McNarry, Michael, Lewis

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Abstract

The use of heart rate variability (HRV) parameters during exercise is not supported by appropriate reliability studies. In 80 healthy adults, ECG was recorded during three 6 min bouts of exercise, separated by 6 min of unloaded cycling. Two bouts were at a moderate intensity while the final bout was...

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Published in: Physiological Measurement
ISSN: 0967-3334 1361-6579
Published: 2012
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URI: https://cronfa.swan.ac.uk/Record/cronfa12783
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spelling 2017-11-25T09:50:28.2278077 v2 12783 2012-09-24 Heart rate variability reproducibility during exercise 062f5697ff59f004bc8c713955988398 0000-0003-0813-7477 Melitta McNarry Melitta McNarry true false b59c8f5c056bac7e6995385f22ad1639 0000-0002-6709-9215 Michael Lewis Michael Lewis true false 2012-09-24 STSC The use of heart rate variability (HRV) parameters during exercise is not supported by appropriate reliability studies. In 80 healthy adults, ECG was recorded during three 6 min bouts of exercise, separated by 6 min of unloaded cycling. Two bouts were at a moderate intensity while the final bout was at a heavy exercise intensity. This protocol was repeated under the same conditions on three occasions, with a controlled start time (pre-determined at the first visit). Standard time and frequency domain indices of HRV were derived. Reliability was assessed by Bland–Altman plots, 95% limits of agreement and intraclass correlation coefficients (ICC). The sample size required to detect a mean difference ≥30% of the between-subject standard deviation was also estimated. There was no systematic change between days. All HRV parameters demonstrated a high degree of reproducibility during baseline (ICC range: 0.58–0.75), moderate (ICC: 0.58–0.85) and heavy intensity exercise (ICC range: 0.40–0.76). The reproducibility was slightly diminished during heavy intensity exercise relative to both unloaded baseline cycling and moderate exercise. This study indicates that HRV parameters can be reliably determined during exercise, and it underlines the importance of standardizing exercise intensity with regard to fitness levels if HRV is to be reliably determined. Journal Article Physiological Measurement 33 7 1123 1133 0967-3334 1361-6579 27 6 2012 2012-06-27 10.1088/0967-3334/33/7/1123 COLLEGE NANME Sports Science COLLEGE CODE STSC Swansea University 2017-11-25T09:50:28.2278077 2012-09-24T11:03:12.7036820 College of Engineering Engineering Melitta McNarry 0000-0003-0813-7477 1 Michael Lewis 0000-0002-6709-9215 2
title Heart rate variability reproducibility during exercise
spellingShingle Heart rate variability reproducibility during exercise
Melitta, McNarry
Michael, Lewis
title_short Heart rate variability reproducibility during exercise
title_full Heart rate variability reproducibility during exercise
title_fullStr Heart rate variability reproducibility during exercise
title_full_unstemmed Heart rate variability reproducibility during exercise
title_sort Heart rate variability reproducibility during exercise
author_id_str_mv 062f5697ff59f004bc8c713955988398
b59c8f5c056bac7e6995385f22ad1639
author_id_fullname_str_mv 062f5697ff59f004bc8c713955988398_***_Melitta, McNarry
b59c8f5c056bac7e6995385f22ad1639_***_Michael, Lewis
author Melitta, McNarry
Michael, Lewis
author2 Melitta McNarry
Michael Lewis
format Journal article
container_title Physiological Measurement
container_volume 33
container_issue 7
container_start_page 1123
publishDate 2012
institution Swansea University
issn 0967-3334
1361-6579
doi_str_mv 10.1088/0967-3334/33/7/1123
college_str College of Engineering
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hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description The use of heart rate variability (HRV) parameters during exercise is not supported by appropriate reliability studies. In 80 healthy adults, ECG was recorded during three 6 min bouts of exercise, separated by 6 min of unloaded cycling. Two bouts were at a moderate intensity while the final bout was at a heavy exercise intensity. This protocol was repeated under the same conditions on three occasions, with a controlled start time (pre-determined at the first visit). Standard time and frequency domain indices of HRV were derived. Reliability was assessed by Bland–Altman plots, 95% limits of agreement and intraclass correlation coefficients (ICC). The sample size required to detect a mean difference ≥30% of the between-subject standard deviation was also estimated. There was no systematic change between days. All HRV parameters demonstrated a high degree of reproducibility during baseline (ICC range: 0.58–0.75), moderate (ICC: 0.58–0.85) and heavy intensity exercise (ICC range: 0.40–0.76). The reproducibility was slightly diminished during heavy intensity exercise relative to both unloaded baseline cycling and moderate exercise. This study indicates that HRV parameters can be reliably determined during exercise, and it underlines the importance of standardizing exercise intensity with regard to fitness levels if HRV is to be reliably determined.
published_date 2012-06-27T03:28:06Z
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