NDLI: Relationship between breath-hold time and physical performance in patients with cystic fibrosis

Content Provider	Springer Nature Link
Author	Barnai, Maria Laki, Istvan Gyurkovits, Kalman Angyan, Lajos Horvath, Gyöngyi
Copyright Year	2005
Abstract	Rehabilitation including physiotherapy is an important part of the treatment used to help improve the quality of life of patients with cystic fibrosis (CF). The aim of this study was to determine the value of the breath-hold time as an index of exercise tolerance in patients with CF. Eighteen patients in different states of CF were included. The breath-hold time was measured in all patients. The fitness level was assessed by means of a progressive exercise test on a cycle-ergometer. During the test, oxygen uptake (VO2) and carbon dioxide elimination (VCO2) were measured breath by breath. The VO2 and working capacity (WC) were computed at the anaerobic threshold (AT) and at peak. Duration of breath-hold was 24.7±2.87 (mean ± SEM) seconds, varying between 10 and 58. The breath-hold time (BHT) displayed a significant correlation with VO2 (r=0.898), WC (r=0.899) at the AT, and the peak VO2 (r=0.895). Regression equations were: VO2 at the AT (ml/kg)=5.53+0.42×BHT and WC at the AT (watt/kg)=0.56+0.38×BHT Our results suggest that the voluntary breath-hold time might be a useful index for prediction of the exercise tolerance of CF patients.
Starting Page	172
Ending Page	178
Page Count	7
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	95
Issue Number	2
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-07-09
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Anaerobic threshold (AT) Lung disease Oxygen uptake (VO2) Working capacity (WC)
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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