Short-term intermittent normobaric hypoxia-haematological, physiological and mental effects
| Autor: | L. Wide, B. Berglund, K. Piehl Aulin, J. Svedenhag, B. Saltin |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Time Factors Blood Pressure Physical Therapy Sports Therapy and Rehabilitation Stimulation Profile of mood states Mental Processes Oxygen Consumption Internal medicine medicine Humans Erythropoiesis Orthopedics and Sports Medicine Hypoxia Erythropoietin Exercise business.industry VO2 max Hypoxia (medical) Endocrinology Blood pressure Female Hemoglobin medicine.symptom business medicine.drug |
| Zdroj: | Scandinavian Journal of Medicine & Science in Sports. 8:132-137 |
| ISSN: | 1600-0838 0905-7188 |
| DOI: | 10.1111/j.1600-0838.1998.tb00182.x |
| Popis: | Effects on erythropoiesis and blood pressure as well as physical performance and mental effects were studied in 15 healthy subjects during intermittent exposure to normobaric hypoxia corresponding to either 2000 m (6 persons) or 2700 m (9 persons) above sea level; another group (5 persons) also served as controls at normoxia. The concept live high - train low was used for 10 d consecutively and the exposure to hypoxia was 12 h/d. Blood pO 2 and oxygen saturation were significantly decreased during the 10 d at hypoxia. [Hb] and Hct decreased significantly after 2 d in hypoxia and then returned to pre-study levels. Erythropoietin was significantly elevated in both hypoxia groups during the initial 3-5 d. Reticulocytes were significantly increased during 7 d of hypoxia. Submaximal and maximal oxygen uptake, blood pressure at rest and during exercise and the profile of mood states (POMS test) did not change during the study. In conclusion, intermittent normobaric hypoxia for 10 d resulted in a significant stimulation of erythropoiesis. Staying at normobaric hypoxia may serve as a complement to an ordinary altitude level sojourn. |
| Databáze: | OpenAIRE |
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