Renal response to head-out water immersion in Korean women divers
| Autor: | Kim Js, Yoonjung Park, Choi Jk, Hong Sk |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Adult
medicine.medical_specialty Physiology Diving Urology Diuresis Natriuresis Kidney Excretion chemistry.chemical_compound Physiology (medical) Internal medicine Respiration Immersion medicine Humans Orthopedics and Sports Medicine Body fluid Creatinine Korea business.industry Osmolar Concentration Sodium Public Health Environmental and Occupational Health General Medicine Middle Aged Free water clearance Endocrinology medicine.anatomical_structure chemistry Female business human activities |
| Zdroj: | European journal of applied physiology and occupational physiology. 67(6) |
| ISSN: | 0301-5548 |
| Popis: | Head-out water immersion (HOI) induces a profound diuresis and natriuresis, which may endanger the body fluid balance of breath-hold divers during prolonged diving work. To investigate if adaptation is acquired by professional breath-hold divers, we have evaluated renal responses to 3-h HOI in 5 Korean women divers (Amas) and 11 nondiving housewives (controls). In both control and diver groups, the average urine flow during 3-h immersion was four times greater and Na+ excretion was 70%-80% greater than the pre-immersion value [urine flow: 3.7 (SD 1.0) ml.min-1 vs 0.9 (SD 0.4), P < 0.001, in controls; 4.3 (SD 0.9) vs 1.1 (SD 0.4), P < 0.001, in divers; Na+ excretion: 270 (SD 176) mumol.min-1 vs 161 (SD 84), P < 0.025, in controls; 303 (SD 31) vs 164 (SD 62), P < 0.005, in divers]. In all cases, the values for a given period were not significantly different between the two groups. The plasma concentrations of Na+ and osmolality, and renal clearance of creatinine did not change significantly. However, the osmolal clearance increased [from 2.0 (SD 0.8) ml.min-1 to 2.8 (SD 0.7), P < 0.05, in the controls; from 2.2 (SD 0.4) to 2.6 (SD 0.4), P < 0.05, in the divers] and free water clearance changed from negative to positive values [from -1.1 (SD 0.5) ml.min-1 to 1.2 (SD 0.3), P < 0.005, in the controls; from -1.2 (SD 0.4) to 1.6 (SD 1.1), P < 0.01, in the divers] during immersion, again the pattern of change being similar in the two groups.(ABSTRACT TRUNCATED AT 250 WORDS) |
| Databáze: | OpenAIRE |
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