A new dose of maximal-intensity interval training in hypoxia to improve body composition and hemoglobin and hematocrit levels: a pilot study
| Autor: | Guillermo Olcina, Marta Camacho-Cardenosa, Alba Camacho-Cardenosa, Ismael Martínez Guardado, Marta Marcos-Serrano, Rafael Timón |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Physical Therapy Sports Therapy and Rehabilitation Pilot Projects Hematocrit High-Intensity Interval Training Interval training law.invention Fat mass 03 medical and health sciences Hemoglobins Young Adult 0302 clinical medicine Randomized controlled trial law medicine Humans Orthopedics and Sports Medicine 030212 general & internal medicine Hematocrit levels Hypoxia medicine.diagnostic_test business.industry 030229 sport sciences Hypoxia (medical) Anesthesia Body Composition Hemoglobin medicine.symptom business High-intensity interval training |
| Zdroj: | The Journal of sports medicine and physical fitness. 57(1-2) |
| ISSN: | 1827-1928 |
| Popis: | Background This pilot study had the aim to determine the effects of a new dose of maximal-intensity interval training in hypoxia in active adults. Methods Twenty-four university student volunteers were randomly assigned to three groups: hypoxia group, normoxia group or control group. The eight training sessions consisted of 2 sets of 5 repeated sprints of 10 seconds with a recovery of 20 seconds between sprints and a recovery period of 10 minutes between sets. Body composition was measured following standard procedures. A blood sample was taken for an immediate hematocrit (HCT) and hemoglobin (Hb) concentration assessment. An all-out 3-ute test was performed to evaluate ventilation parameters and power. Results HCT and Hb were significantly higher for the hypoxia group in Post- and Det- (P=0.01; P=0.03). Fat mass percentage was significantly lower for the hypoxia group in both assessments (P=0.05; P=0.05). The hypoxia group underwent a significant increase in mean power after the recovery period. Conclusions A new dose of 8 sessions of maximal-intensity interval training in hypoxia is enough to decrease the percentage of fat mass and to improve HCT and Hb parameters and mean muscle power in healthy and active adults. |
| Databáze: | OpenAIRE |
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