Genomic and non-genomic effects of aldosterone on the individual variation of the sweat Na+ concentration during exercise in trained athletes
| Autor: | Seiichi Nakai, Akira Yorimoto, Hiromi Shin-ya, Tohru Suyama, Taketoshi Morimoto, Tetsuya Yoshida, Masao Sakurai |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Male medicine.medical_specialty Hot Temperature Genotype Physiology medicine.drug_class Rest Sodium chemistry.chemical_element Sweating Physical exercise Body Temperature SWEAT Hemoglobins chemistry.chemical_compound Oxygen Consumption Physiology (medical) Internal medicine medicine Humans Orthopedics and Sports Medicine Cycle exercise Plasma Volume Sweat Aldosterone Exercise integumentary system Public Health Environmental and Occupational Health VO2 max Radioimmunoassay Blood Proteins General Medicine Cross-Sectional Studies Endocrinology chemistry Physical Fitness Mineralocorticoid |
| Zdroj: | European Journal of Applied Physiology. 98:466-471 |
| ISSN: | 1439-6327 1439-6319 |
| Popis: | To clarify whether the resting background effects (genomic) or exercise-related action (non-genomic) of aldosterone (ALD) is primarily affected to an individual variation in the sweat Na+ concentration ([Na+]sweat), we analyzed the cross-sectional relationship between [Na+]sweat and the plasma ALD concentration during rest and exercise in a hot environment. Eleven college-aged male subjects with a mean maximal oxygen uptake of 48 (range 42–59) ml kg−1 min−1 performed three sessions of 20-min cycle exercise at two levels of intensity (40 or 60% $$\dot VO_{\rm 2max}$$ ) in a room maintained at 31°C. The chest sweat rate (SRch) and its containing Na+ were higher and individual differences in SRch and [Na+]sweat were greater at 60% exercise than at 40% exercise. In each individual, the [Na+]sweat increased significantly (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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