Reduced heart rate response to exercise in patients with type 2 diabetes

BackgroundRecent studies have found that heart rate response is impaired in patients with type 2 diabetes. However, it remains unclear how chronotropic competence changes in these patients and which chronotropic index is more closely related to type 2 diabetes. This study aims to investigate the cha...

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Main Authors: Jingfeng Lou, Hongmei Lang, Yuhan Xia, Hui Jiang, Kun Li, Xingping Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-03-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2025.1446675/full
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author Jingfeng Lou
Hongmei Lang
Yuhan Xia
Hui Jiang
Hui Jiang
Kun Li
Kun Li
Xingping Zhang
author_facet Jingfeng Lou
Hongmei Lang
Yuhan Xia
Hui Jiang
Hui Jiang
Kun Li
Kun Li
Xingping Zhang
author_sort Jingfeng Lou
collection DOAJ
description BackgroundRecent studies have found that heart rate response is impaired in patients with type 2 diabetes. However, it remains unclear how chronotropic competence changes in these patients and which chronotropic index is more closely related to type 2 diabetes. This study aims to investigate the changes in chronotropic competence in type 2 diabetes and compares the association of two different chronotropic indices with type 2 diabetes.Patients and methodsPatients who underwent cardiopulmonary exercise testing at the Chengdu Second People's Hospital from October 2022 to October 2023, we included. Logistic regression was used to analyze the relationship between chronotropic indices and type 2 diabetes, comparing which of the two chronotropic indices is more closely related to type 2 diabetes.ResultsA total of 166 patients were included in our study, of which 42.8% had type 2 diabetes and 57.2% did not have type 2 diabetes. After adjusting for confounders, the OR for chronotropic index 1 with type 2 diabetes was 0.001 (95% CI: 0.0001–0.521, P = 0.03), and the OR for chronotropic index 2 with type 2 diabetes was 0.665 (95% CI: 0.479–0.923, P = 0.015), both showing a negative correlation with type 2 diabetes. When chronotropic index 2 was included in the model as quartiles, it still showed a negative correlation with type 2 diabetes (OR: 0.388; 95% CI: 0.173–0.869; P = 0.021), while chronotropic index 1 showed no significant correlation.ConclusionHeart rate response is reduced in patients with type 2 diabetes, and a low chronotropic index 2 is independently associated with type 2 diabetes.
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spelling doaj-art-c0154b3f503f466bbdad3cddda9540782025-08-20T02:49:50ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2025-03-011210.3389/fcvm.2025.14466751446675Reduced heart rate response to exercise in patients with type 2 diabetesJingfeng Lou0Hongmei Lang1Yuhan Xia2Hui Jiang3Hui Jiang4Kun Li5Kun Li6Xingping Zhang7Department of General Medicine, Chengdu Second People’s Hospital, Chengdu, ChinaDepartment of General Medicine, Chengdu Second People’s Hospital, Chengdu, ChinaDepartment of Endocrinology, North Sichuan Medical College, Nan Chong, ChinaDepartment of General Medicine, Chengdu Second People's Hospital, Clinical Medical College of Chengdu Medical College, Chengdu, ChinaDepartment of General Medicine, Qiyang People’s Hospital, Yongzhou, ChinaDepartment of General Medicine, Chengdu Second People's Hospital, Clinical Medical College of Chengdu Medical College, Chengdu, ChinaDepartment of General Medicine, Hongpailou Community Health Care Center, Chengdu, ChinaDepartment of General Medicine, Chengdu Second People’s Hospital, Chengdu, ChinaBackgroundRecent studies have found that heart rate response is impaired in patients with type 2 diabetes. However, it remains unclear how chronotropic competence changes in these patients and which chronotropic index is more closely related to type 2 diabetes. This study aims to investigate the changes in chronotropic competence in type 2 diabetes and compares the association of two different chronotropic indices with type 2 diabetes.Patients and methodsPatients who underwent cardiopulmonary exercise testing at the Chengdu Second People's Hospital from October 2022 to October 2023, we included. Logistic regression was used to analyze the relationship between chronotropic indices and type 2 diabetes, comparing which of the two chronotropic indices is more closely related to type 2 diabetes.ResultsA total of 166 patients were included in our study, of which 42.8% had type 2 diabetes and 57.2% did not have type 2 diabetes. After adjusting for confounders, the OR for chronotropic index 1 with type 2 diabetes was 0.001 (95% CI: 0.0001–0.521, P = 0.03), and the OR for chronotropic index 2 with type 2 diabetes was 0.665 (95% CI: 0.479–0.923, P = 0.015), both showing a negative correlation with type 2 diabetes. When chronotropic index 2 was included in the model as quartiles, it still showed a negative correlation with type 2 diabetes (OR: 0.388; 95% CI: 0.173–0.869; P = 0.021), while chronotropic index 1 showed no significant correlation.ConclusionHeart rate response is reduced in patients with type 2 diabetes, and a low chronotropic index 2 is independently associated with type 2 diabetes.https://www.frontiersin.org/articles/10.3389/fcvm.2025.1446675/fullheart rate responsechronotropic indexcardiopulmonary exercise testingtype 2 diabetescorrelation
spellingShingle Jingfeng Lou
Hongmei Lang
Yuhan Xia
Hui Jiang
Hui Jiang
Kun Li
Kun Li
Xingping Zhang
Reduced heart rate response to exercise in patients with type 2 diabetes
Frontiers in Cardiovascular Medicine
heart rate response
chronotropic index
cardiopulmonary exercise testing
type 2 diabetes
correlation
title Reduced heart rate response to exercise in patients with type 2 diabetes
title_full Reduced heart rate response to exercise in patients with type 2 diabetes
title_fullStr Reduced heart rate response to exercise in patients with type 2 diabetes
title_full_unstemmed Reduced heart rate response to exercise in patients with type 2 diabetes
title_short Reduced heart rate response to exercise in patients with type 2 diabetes
title_sort reduced heart rate response to exercise in patients with type 2 diabetes
topic heart rate response
chronotropic index
cardiopulmonary exercise testing
type 2 diabetes
correlation
url https://www.frontiersin.org/articles/10.3389/fcvm.2025.1446675/full
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