Protein metabolism during moderate exercise in cystic fibrosis patients
| Autor: | K.G. Henke, Peter W.R. Lemon, D.M. Orenstein |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
medicine.medical_specialty
Urea nitrogen business.industry Protein metabolism Physical Therapy Sports Therapy and Rehabilitation Urine Protein degradation medicine.disease Cystic fibrosis Excretion SWEAT chemistry.chemical_compound Endocrinology chemistry Internal medicine Medicine Orthopedics and Sports Medicine Respiratory system business |
| Zdroj: | Journal of Sports Sciences. 2:47-55 |
| ISSN: | 1466-447X 0264-0414 |
| DOI: | 10.1080/02640418408729695 |
| Popis: | Recent evidence indicates that protein utilization during exercise is greater than is generally believed. Increases in sweat urea nitrogen suggest that during exercise sweat is a major vehicle for excretion of the toxic NH3 resulting from protein degradation. Cystic fibrosis is manifested by disturbances in secretions of the respiratory, digestive and sweat glands. To further investigate the importance of the sweating mechanism as a mode of urea nitrogen excretion we studied the response of five cystic fibrosis patients and five healthy controls to acute exercise in the heat. Subjects rode a cycle ergometer at (X± S.D.) 48.7 ± 3.1 % VO2 peak (approximately 1.113 1 min‐1) for 60 ± 9.6 min at 37.4±0.6°C and 33.9 ± 11.8% relative humidity. Water was provided freely. Rectal temperature, ECG (CM5), sweat (whole body washdown) and pre‐exercise and post‐exercise urine samples were measured. Both healthy and cystic fibrosis subjects had similar #OPX#PMS.E.#CP peak rectal temperatures (38.4±0.4; 38.3±0.2°... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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