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Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis

Sameera Senanayake, Nicholas Harrison, Michael Lewis

Journal of Exercise Rehabilitation, Volume: 15, Issue: 1, Pages: 160 - 169

Swansea University Author: Michael Lewis

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DOI (Published version): 10.12965/jer.1836452.226

Abstract

This study sought to determine whether a 6-week physical rehabilitation programme has a measurable influence on heart rate responsiveness to changing metabolic demand in patients with pulmonary fibrosis. Fifteen individuals (13 with idiopathic pulmonary fibrosis and two with pulmonary fibrosis assoc...

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Published in: Journal of Exercise Rehabilitation
ISSN: 2288-176X 2288-1778
Published: Korean Society of Exercise Rehabilitation 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa45995
first_indexed 2018-11-20T14:20:41Z
last_indexed 2020-10-20T02:57:20Z
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spelling 2020-10-19T18:39:56.1764977 v2 45995 2018-11-20 Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis b59c8f5c056bac7e6995385f22ad1639 Michael Lewis Michael Lewis true false 2018-11-20 This study sought to determine whether a 6-week physical rehabilitation programme has a measurable influence on heart rate responsiveness to changing metabolic demand in patients with pulmonary fibrosis. Fifteen individuals (13 with idiopathic pulmonary fibrosis and two with pulmonary fibrosis associated with rheumatoid disease) underwent assessments of physical function (6-min walk test), ventilatory function (spirometry), and cardio-respiratory function (respiratory gas analysis and electrocardiogram [ECG] recording during a protocol consisting of periods of rest, incremental bicycle exercise to maximal effort, and post-exercise recovery). RR (beat-to-beat cardiac intervals) data were derived from the ECG and used to quantify (a) heart rate variability (HRV) and (b) cardiac acceleration (AC) and deceleration capacities (DC) (via phase rectified signal averaging). Following the rehabilitation programme, heart rate was elevated by 11%–18% during exercise and recovery states. HRV was not statistically influenced by rehabilitation during any stage of the assessment protocol; however, qualitative changes were apparent with HRV increasing by 68%–75% during all stages of the protocol. Statistically, AC and DC were similar pre- and postrehabilitation (AC = -2.7 and -3.2 msec; DC = 2.3 and 3.2 msec, respectively) but again we observed qualitative improvements in these in- dices of 19% and 38%, respectively. These results provide initial evidence that physical rehabilitation improves heart rate dynamics (via modulation of autonomic control of heart rate) in idiopathic pulmonary fibrosis patients, even when respiratory and physical functions are un- changed or diminished. Journal Article Journal of Exercise Rehabilitation 15 1 160 169 Korean Society of Exercise Rehabilitation 2288-176X 2288-1778 Heart rate, Lung disease, Autonomic nervous system, Exercise 31 12 2019 2019-12-31 10.12965/jer.1836452.226 COLLEGE NANME COLLEGE CODE Swansea University 2020-10-19T18:39:56.1764977 2018-11-20T11:20:24.3080351 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sameera Senanayake 1 Nicholas Harrison 2 Michael Lewis 3 0045995-08032019094211.pdf senanayake2019.pdf 2019-03-08T09:42:11.9830000 Output 5567801 application/pdf Version of Record true 2019-03-08T00:00:00.0000000 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License. true eng http://creativecommons.org/licenses/by-nc/4.0/
title Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
spellingShingle Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
Michael Lewis
title_short Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
title_full Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
title_fullStr Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
title_full_unstemmed Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
title_sort Influence of physical rehabilitation on heart rate dynamics in patients with idiopathic pulmonary fibrosis
author_id_str_mv b59c8f5c056bac7e6995385f22ad1639
author_id_fullname_str_mv b59c8f5c056bac7e6995385f22ad1639_***_Michael Lewis
author Michael Lewis
author2 Sameera Senanayake
Nicholas Harrison
Michael Lewis
format Journal article
container_title Journal of Exercise Rehabilitation
container_volume 15
container_issue 1
container_start_page 160
publishDate 2019
institution Swansea University
issn 2288-176X
2288-1778
doi_str_mv 10.12965/jer.1836452.226
publisher Korean Society of Exercise Rehabilitation
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description This study sought to determine whether a 6-week physical rehabilitation programme has a measurable influence on heart rate responsiveness to changing metabolic demand in patients with pulmonary fibrosis. Fifteen individuals (13 with idiopathic pulmonary fibrosis and two with pulmonary fibrosis associated with rheumatoid disease) underwent assessments of physical function (6-min walk test), ventilatory function (spirometry), and cardio-respiratory function (respiratory gas analysis and electrocardiogram [ECG] recording during a protocol consisting of periods of rest, incremental bicycle exercise to maximal effort, and post-exercise recovery). RR (beat-to-beat cardiac intervals) data were derived from the ECG and used to quantify (a) heart rate variability (HRV) and (b) cardiac acceleration (AC) and deceleration capacities (DC) (via phase rectified signal averaging). Following the rehabilitation programme, heart rate was elevated by 11%–18% during exercise and recovery states. HRV was not statistically influenced by rehabilitation during any stage of the assessment protocol; however, qualitative changes were apparent with HRV increasing by 68%–75% during all stages of the protocol. Statistically, AC and DC were similar pre- and postrehabilitation (AC = -2.7 and -3.2 msec; DC = 2.3 and 3.2 msec, respectively) but again we observed qualitative improvements in these in- dices of 19% and 38%, respectively. These results provide initial evidence that physical rehabilitation improves heart rate dynamics (via modulation of autonomic control of heart rate) in idiopathic pulmonary fibrosis patients, even when respiratory and physical functions are un- changed or diminished.
published_date 2019-12-31T19:36:44Z
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