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Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes / Othmar Moser; Gerhard Tschakert; Alexander Mueller; Werner Groeschl; Max L. Eckstein; Gerd Koehler; Richard M. Bracken; Thomas R. Pieber; Peter Hofmann

Frontiers in Endocrinology, Volume: 9

Swansea University Author: Moser, Othmar

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Abstract

To investigate the heart rate during cardio-pulmonary exercise (CPX) testing in individuals with type 1 diabetes (T1D) compared to healthy (CON) individuals. Fourteen people (seven individuals with T1D and seven CON individuals) performed a CPX test until volitional exhaustion to determine the first...

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Published in: Frontiers in Endocrinology
ISSN: 1664-2392
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa45475
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spelling 2018-11-06T15:54:18Z v2 45475 2018-11-06 Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes Othmar Moser Othmar Moser true false 3b249efea402d5413effa1e67f31bdfa a9625054059bfd5cbccb1b4f937c8d89 Zg5+bY+fwE1u6nqIbX/KI32HZhUyFASdV1DFdgIIhKs= 2018-11-06 STSC To investigate the heart rate during cardio-pulmonary exercise (CPX) testing in individuals with type 1 diabetes (T1D) compared to healthy (CON) individuals. Fourteen people (seven individuals with T1D and seven CON individuals) performed a CPX test until volitional exhaustion to determine the first and second lactate turn points (LTP1 and LTP2), ventilatory thresholds (VT1 and VT2), and the heart rate turn point. For these thresholds cardio-respiratory variables and percentages of maximum heart rate, heart rate reserve, maximum oxygen uptake and oxygen uptake reserve, and maximum power output were compared between groups. Additionally, the degree and direction of the deflection of the heart rate to performance curve (kHR) were compared between groups. Individuals with T1D had similar heart rate at LTP1 (mean difference) −11, [(95% confidence interval) −27 to 4 b.min−1], at VT1 (−12, −8 to 33 b.min−1) and at LTP2 (−7, −13 to 26 b.min−1), at VT2 (−7, −13 to 28 b.min−1), and at the heart rate turn point (−5, −14 to 24 b.min−1) (p = 0.22). Heart rate expressed as percentage of maximum heart rate at LTP1, VT1, LTP2, VT2 and the heart rate turn point as well as expressed as percentages of heart rate reserve at LTP2, VT2 and the heart rate turn point was lower in individuals with T1D (p < 0.05). kHR was lower in T1D compared to CON individuals (0.11 ± 0.25 vs. 0.51 ± 0.32, p = 0.02). Our findings demonstrate that there are clear differences in the heart rate response during CPX testing in individuals with T1D compared to CON individuals. We suggest using submaximal markers to prescribe exercise intensity in people with T1D, as the heart rate at thresholds is influenced by kHR. Journal article Frontiers in Endocrinology 9 1664-2392 2 10 2018 2018-10-02 10.3389/fendo.2018.00585 College of Engineering Sports Science CENG STSC None None 2018-11-06T15:54:18Z 2018-11-06T15:48:09Z College of Engineering Sports Science Othmar Moser 1 Gerhard Tschakert 2 Alexander Mueller 3 Werner Groeschl 4 Max L. Eckstein 5 Gerd Koehler 6 Richard M. Bracken 7 Thomas R. Pieber 8 Peter Hofmann 9 0045475-06112018155107.pdf moser2018(6).pdf 2018-11-06T15:51:07Z Output 578111 application/pdf VoR true Updated Embargo 06/11/2018 2018-11-05T00:00:00 Released under the terms of a Creative Commons Attribution License (CC-BY). true eng
title Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
spellingShingle Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
Moser, Othmar
title_short Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
title_full Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
title_fullStr Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
title_full_unstemmed Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
title_sort Different Heart Rate Patterns During Cardio-Pulmonary Exercise (CPX) Testing in Individuals With Type 1 Diabetes
author_id_str_mv 3b249efea402d5413effa1e67f31bdfa
author_id_fullname_str_mv 3b249efea402d5413effa1e67f31bdfa_***_Moser, Othmar
author Moser, Othmar
author2 Othmar Moser
Gerhard Tschakert
Alexander Mueller
Werner Groeschl
Max L. Eckstein
Gerd Koehler
Richard M. Bracken
Thomas R. Pieber
Peter Hofmann
format Journal article
container_title Frontiers in Endocrinology
container_volume 9
publishDate 2018
institution Swansea University
issn 1664-2392
doi_str_mv 10.3389/fendo.2018.00585
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 Sports Science{{{_:::_}}}College of Engineering{{{_:::_}}}Sports Science
document_store_str 1
active_str 1
description To investigate the heart rate during cardio-pulmonary exercise (CPX) testing in individuals with type 1 diabetes (T1D) compared to healthy (CON) individuals. Fourteen people (seven individuals with T1D and seven CON individuals) performed a CPX test until volitional exhaustion to determine the first and second lactate turn points (LTP1 and LTP2), ventilatory thresholds (VT1 and VT2), and the heart rate turn point. For these thresholds cardio-respiratory variables and percentages of maximum heart rate, heart rate reserve, maximum oxygen uptake and oxygen uptake reserve, and maximum power output were compared between groups. Additionally, the degree and direction of the deflection of the heart rate to performance curve (kHR) were compared between groups. Individuals with T1D had similar heart rate at LTP1 (mean difference) −11, [(95% confidence interval) −27 to 4 b.min−1], at VT1 (−12, −8 to 33 b.min−1) and at LTP2 (−7, −13 to 26 b.min−1), at VT2 (−7, −13 to 28 b.min−1), and at the heart rate turn point (−5, −14 to 24 b.min−1) (p = 0.22). Heart rate expressed as percentage of maximum heart rate at LTP1, VT1, LTP2, VT2 and the heart rate turn point as well as expressed as percentages of heart rate reserve at LTP2, VT2 and the heart rate turn point was lower in individuals with T1D (p < 0.05). kHR was lower in T1D compared to CON individuals (0.11 ± 0.25 vs. 0.51 ± 0.32, p = 0.02). Our findings demonstrate that there are clear differences in the heart rate response during CPX testing in individuals with T1D compared to CON individuals. We suggest using submaximal markers to prescribe exercise intensity in people with T1D, as the heart rate at thresholds is influenced by kHR.
published_date 2018-10-02T12:17:22Z
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