Advanced Mechanical Ventilatory Constraints During Incremental Exercise in Class III Obese Male Subjects.
BACKGROUND: We investigated the role of mechanical ventilatory constraints in obese class III subjects during incremental exercise. METHODS: We examined 14 control subjects (body mass index [BMI], 23.6 ± 3.2 kg/m2), 15 obese class II subjects (BMI, 37.2 ± 4.5 kg/m2), and 17 obese class III subjects...
| Publicado en: | Respiratory Care Vol. 60; no. 4; pp. 549 - 561 |
|---|---|
| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Mary Ann Liebert, Inc.
Apr2015
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103789604&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103789604 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00201324 4GG jtl: Respiratory Care issn: 00201324 maglogo: N pubinfo: dt: Apr2015 vid: 60 iid: 4 pid: 1365 pub: Mary Ann Liebert, Inc. place: New Rochelle, New York artinfo: ui: 103789604 102204375 10.4187/respcare.03206 NLM25628449 103789604 ppf: 549 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Advanced Mechanical Ventilatory Constraints During Incremental Exercise in Class III Obese Male Subjects. aug: au: Chlif, Mehdi Temfemo, Abdou Keochkerian, David Choquet, Dominique Chaouachi, Anis Ahmaidi, Said affil: Sport Science Department, Picardie Jules Verne University, F-80025 Amiens Cedex, France; Tunisian Research Laboratory Sport Performance Optimization, National Center of Medicine and Science in Sports, Tunis, Tunisia sug: subj: Respiration, Artificial Obesity Exercise Tolerance Case Control Studies Human Male Adult Middle Age Descriptive Statistics Data Analysis Software One-Way Analysis of Variance T-Tests Pearson's Correlation Coefficient P-Value Post Hoc Analysis Body Mass Index Waist-Hip Ratio Exertion Lung Volume Measurements Dyspnea Complications Respiratory Mechanics Adult: 19-44 years Middle Aged: 45-64 years Male ab: BACKGROUND: We investigated the role of mechanical ventilatory constraints in obese class III subjects during incremental exercise. METHODS: We examined 14 control subjects (body mass index [BMI], 23.6 ± 3.2 kg/m2), 15 obese class II subjects (BMI, 37.2 ± 4.5 kg/m2), and 17 obese class III subjects (BMI, 53.4 ± 6.8 kg/m2). All subjects performed pulmonary function tests and maximal inspiratory pressure at rest, ventilatory parameters, flow-volume loops, and rated perceived exertion and breathlessness during exercise. RESULTS: All subjects had normal pulmonary function. Obesity resulted in increased minute ventilation for a given submaximal work rate, although minute ventilation during peak exercise was lowest in the obese class III subjects. End-expiratory lung volume was significantly lower in the obese subjects at rest and during exercise at the ventilatory threshold but not during peak exercise. During heavy-to-peak exercise, the obese subjects increased their end-expiratory lung volume, whereas the control group continued to decrease this parameter. Compared with controls, end-inspiratory lung volume was significantly lower in obese class II subjects and obese class III subjects at rest and at the ventilatory threshold but not during peak exercise. At maximal exercise, obese class III subjects had a greater end-inspiratory lung volume than obese class II subjects and controls. Obese class III subjects displayed a greater expiratory air flow limitation at rest, at the ventilatory threshold, and during peak exercise than both controls and obese class II subjects. CONCLUSIONS: Mechanical ventilatory constraints increase progressively with degrees of obesity, contributing to exercise limitation in obese subjects. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|