Cited by 52Cardiovascular and exercise physiologyPhysical Activity and HealthDiabetes, Cardiovascular Risks, and Lipoproteins

Effects of exercise training on HbA 1c and VO 2peak in patients with type 2 diabetes and coronary artery disease: A randomised clinical trial

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Byrkjeland, Rune, Njerve, Ida U, Anderssen, Sigmund, Arnesen, Harald, Seljeflot, Ingebjørg, Solheim, Svein·2015·Diabetes and Vascular Disease Research

Abstract

Objective: Few exercise trials have focused on patients with both type 2 diabetes and coronary artery disease. We investigated the effects of 1 year of exercise training on HbA 1c and VO 2peak in these patients. Methods: Patients with type 2 diabetes and coronary artery disease ( n = 137) were randomised to combined exercise training or control group. HbA 1c was measured at the beginning and end of the study. Changes in VO 2peak , and also ventilatory threshold and time to exhaustion, were assessed by cardiopulmonary exercise testing. Results: No differences in changes between the randomised groups were observed in HbA 1c and VO 2peak , whereas ventilatory threshold and time to exhaustion increased significantly in the exercise group compared with the controls ( p = 0.046 and p = 0.034). In patients without previous acute myocardial infarction and diabetes microvascular complications ( n = 46), the exercise group did improve HbA 1c and VO 2peak compared with the controls ( p = 0.052 and p = 0.035). Conclusion: No significant effects of exercise training on HbA 1c or VO 2peak were observed in patients with type 2 diabetes and coronary artery disease, although improvements were seen in patients without vascular complications beyond coronary artery disease, implying that the degree of vascular disease may influence exercise responses. Ventilatory threshold and time to exhaustion did increase significantly, indicating improved exercise performance despite the minor change in VO 2peak .

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  1. Wasserman K, Hansen JE, Sue DY, et al. Principles of exercise testing and interpretation including pathophysi- ology and clinical applications. 4th ed. Philadelphia, PA: Lippincott Williams & Wilkins, 2005, pp. 106, 115.
  2. Umpierre D, Ribeiro PA, Kramer CK, et al. Physical activ- ity advice only or structured exercise training and asso- ciation with HbA1c levels in type 2 diabetes: a systematic review and meta-analysis. JAMA 2011; 17: 1790-1799.

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Authors
Byrkjeland, R., Njerve, I. U., Anderssen, S., Arnesen, H., Seljeflot, I., & Solheim, S.
Affiliations
  • Oslo University Hospital (NO)
  • Norwegian School of Sport Sciences (NO)
Venue
Diabetes and Vascular Disease Research
Published
2015-06-19
Volume
12
Issue
5
Pages
325-333
ISSN
  • 1479-1641 (ISSN-L)
  • 1752-8984
OpenAlex
W1957769650
Cited by
52
References
31
Citations by year
2026: 5 · 2025: 3 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 3 · 2017: 12 · 2016: 3
FWCI
11.71
Type
journal article
Language
en
Open access
Locations
  • Diabetes and Vascular Disease Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
exercise training, type 2 diabetes, coronary artery disease, HbA1c, peak oxygen uptake, ventilatory threshold, time to exhaustion, exercise performance, diabetic microvascular complications, cardiopulmonary exercise testing
MeSH terms
Aged, Coronary Artery Disease, Diabetes Mellitus, Type 2, Exercise Test, Exercise Therapy, Female, Glycated Hemoglobin, Humans, Male, Middle Aged, Oxygen, Oxygen Consumption, Exercise

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