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13-09-2024 | Spirometry | RESEARCH

The Effects of Diabetes on Gas Transfer Capacity, Lung Volumes, Muscle Strength, and Cardio-pulmonary Responses During Exercise

Authors: Eldar Priel, Emir Ali, Danica Brister, Nermin Diab, Andy Freitag, Paul M. O’Byrne, Hertzel Gerstein, Kieran J. Killian, Imran Satia

Published in: Lung | Issue 6/2024

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Abstract

Background

Diabetes is a risk factor for the development of vascular disease, chronic kidney disease, retinopathy, and neuropathy. Diabetes is a co-morbid condition commonly present in patients with respiratory disorders but the extent to which it influences ventilatory capacity, gas exchange, and functional capacity is not well known.
Research question
Does the presence of diabetes contribute to impairment in spirometry, gas transfer, and exercise capacity?

Methods

Retrospective analysis of all subjects who performed incremental cardio-pulmonary exercise testing (CPET) between 1988 and 2012 at McMaster University Medical Centre. The impact of diabetes on physiological outcomes and maximum power output (MPO) was assessed using stepwise multiple additive linear regression models including age, height, weight, sex, muscle strength, and previous myocardial infarct as co-variates, and was also stratified based on BMI categories.

Results

40,776 subjects were included in the analysis; 1938 (5%, 66% male) had diabetes. Diabetics were older (59 vs. 53 years), heavier (88.3 vs.78.0 kg), and had a higher BMI (31 vs. 27 kg/m2). The presence of diabetes was independently associated with a reduction in FEV1 (− 130 ml), FVC (− 220 ml), DLCO (− 1.52 ml/min/mmHg), and VA (− 340ml) but not KCO. Patients with diabetes achieved a lower % predicted MPO[diabetic subjects 70% predicted (670 kpm/min ± 95% CI 284) vs. 80% in non-diabetics (786 kpm/min ± 342), p < 0.001]. With the exception of KCO, these differences persisted across BMI categories and after adjusting for MI.

Conclusion

The presence of diabetes is independently associated with weaker muscles, lower ventilatory and gas transfer capacity and translates to a lower exercise capacity. These differences are independent of age, height, weight, sex, and previous MI.
Appendix
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Literature
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go back to reference Jones NL, Kane JW (1979) Quality control of exercise test measurements. Med Sci Sports 11(4):368–372PubMed Jones NL, Kane JW (1979) Quality control of exercise test measurements. Med Sci Sports 11(4):368–372PubMed
29.
go back to reference Kodolova IM, Lysenko LV, Saltykov BB (1982) Changes in the lungs in diabetes mellitus. Arkh Patol 44(7):35–40PubMed Kodolova IM, Lysenko LV, Saltykov BB (1982) Changes in the lungs in diabetes mellitus. Arkh Patol 44(7):35–40PubMed
Metadata
Title
The Effects of Diabetes on Gas Transfer Capacity, Lung Volumes, Muscle Strength, and Cardio-pulmonary Responses During Exercise
Authors
Eldar Priel
Emir Ali
Danica Brister
Nermin Diab
Andy Freitag
Paul M. O’Byrne
Hertzel Gerstein
Kieran J. Killian
Imran Satia
Publication date
13-09-2024
Publisher
Springer US
Published in
Lung / Issue 6/2024
Print ISSN: 0341-2040
Electronic ISSN: 1432-1750
DOI
https://doi.org/10.1007/s00408-024-00744-9

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