Cited by 447Cardiovascular and exercise physiologyChronic Obstructive Pulmonary Disease (COPD) ResearchMuscle Physiology and Disorders

Histochemical and Morphological Characteristics of the Vastus Lateralis Muscle in Patients with Chronic Obstructive Pulmonary Disease

WHITTOM, FRAN??OIS, JOBIN, JEAN, SIMARD, PIERRE-MICHEL, LEBLANC, PIERRE, SIMARD, CLERMONT, BERNARD, SARAH, BELLEAU, ROGER, MALTAIS, FRAN??OIS·1998·Medicine & Science in Sports & Exercise

Abstract

Purpose and methods In this study, we examined the fiber-type proportions, cross-sectional areas (CSA), and capillarization from needle biopsies of the vastus lateralis muscle in 20 patients with chronic obstructive pulmonary disease (COPD) (FEV1 = 37 +/- 11% predicted, peak VO2 = 13 +/- 4 mL.min-1.kg-1) and nine age-matched normal subjects (peak VO2 = 33 +/- 7 mL.min-1.kg-1). The effects of endurance training on these parameters were also evaluated in 11 of the 20 patients with COPD. Results The proportion of Type I fiber was smaller in COPD than normals (34 +/- 14% vs 58 +/- 16 in normals, P Conclusions We conclude that in COPD, 1) the vastus lateralis muscle is characterized by a marked decrease in Type I fiber proportion, an increase in Type IIb fiber proportion, a decrease in Type I, IIa, and IIab fiber CSA and by a relatively preserved capillarization; and 2) a 12-wk training program induces a significant increase in Type I and IIa CSA.

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Crossref · 10.1097/00005768-199810000-00001

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1 of 1 references verified0 citation errors · 0 not checkable

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  • Capillarization has been found impaired specifically in type I muscle fibers in COPD, which has a deep impact on the muscle's oxidative capacity.

    “Capillarization has notably been found impaired specifically in type I muscle fibers, which has a deep impact on the muscle’s oxidative capacity [14,15]”

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Authors
WHITTOM, F., JOBIN, J., SIMARD, P.-M., LEBLANC, P., SIMARD, C., BERNARD, S., BELLEAU, R., & MALTAIS, F.
Venue
Medicine & Science in Sports & Exercise
Published
1998-10
Volume
30
Issue
10
Pages
1467-1474
ISSN
0195-9131 (ISSN-L)
OpenAlex
W2030972258
Cited by
447
References
1
Citations by year
2026: 2 · 2025: 5 · 2024: 10 · 2023: 7 · 2022: 8 · 2021: 17 · 2020: 11 · 2019: 7 · 2018: 7 · 2017: 10 · 2016: 18 · 2015: 7 · 2014: 31 · 2013: 28 · 2012: 21
FWCI
18.33
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
chronic obstructive pulmonary disease, vastus lateralis, skeletal muscle fiber type composition, muscle fiber cross-sectional area, capillarization, capillary-to-fiber ratio, endurance training, peak oxygen uptake, muscle histology
MeSH terms
Aged, Analysis of Variance, Biopsy, Needle, Capillaries, Exercise Test, Exercise Therapy, Female, Forced Expiratory Volume, Heart Rate, Histocytochemistry, Humans, Lactates, Lung Diseases, Obstructive, Male, Oxygen, Oxygen Consumption, Physical Endurance, Anaerobic Threshold, Case-Control Studies, Muscle, Skeletal, Muscle Fibers, Fast-Twitch, Muscle Fibers, Slow-Twitch, Anatomy, Cross-Sectional

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