Noninvasive assessment of the tension-time index of inspiratory muscles at rest in obese male subjects

OBJECTIVE: The aim of this study was to investigate the effect of excessive mechanical load caused by obesity on the inspiratory muscle performance in obese men at rest. METHODS: We therefore measure at rest spirometric flows and the noninvasive tension time index of inspiratory muscle ( T Tmus = P...

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Bibliographic Details
Published in:International Journal of Obesity 2005-12, Vol.29 (12), p.1478-1483
Main Authors: Chlif, M, Keochkerian, D, Mourlhon, C, Choquet, D, Ahmaidi, S
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Body Mass Index
Epidemiology
Fatigue
Female
Forced Expiratory Volume
Health Promotion and Disease Prevention
Humans
Hypoventilation
Inspiratory Capacity
Internal Medicine
Load
Male
Medical sciences
Medicine
Medicine & Public Health
Metabolic Diseases
Middle Aged
Muscle Fatigue - physiology
Muscles
Obesity
Obesity - physiopathology
Public Health
Rehabilitation
Respiration Disorders - etiology
Respiration Disorders - physiopathology
Respiratory Muscles - physiopathology
Sport science
Tension
Time Factors
Vital Capacity
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Summary:OBJECTIVE: The aim of this study was to investigate the effect of excessive mechanical load caused by obesity on the inspiratory muscle performance in obese men at rest. METHODS: We therefore measure at rest spirometric flows and the noninvasive tension time index of inspiratory muscle ( T Tmus = P I / P Imax × T I / T TOT ) in eight obese male subjects (body mass index (BMI)>30) and 10 controls. RESULTS: Spirometric flow (FEV 1 % pred, FVC% pred) and maximal inspiratory pressure ( P Imax ) were significantly lower in obese subjects compared to controls ( P
ISSN:0307-0565
1476-5497
DOI:10.1038/sj.ijo.0803030