Effects of strength training under hypoxic conditions on muscle performance, body composition and haematological variables
| Autor: | Alba Camacho Cardeñosa, Braulio Sánchez Ureña, Rafael Timón Andrada, Guillermo Jorge Olcina Camacho, Ismael Martínez Guardado, Marta Camacho Cardeñosa |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Haematological variables Strength training QH301-705.5 Antecubital vein Physical Therapy Sports Therapy and Rehabilitation 030204 cardiovascular system & hematology Muscle mass Muscle hypertrophy 03 medical and health sciences 0302 clinical medicine Altitude training Physiology (medical) Internal medicine Medicine Orthopedics and Sports Medicine Increase muscle mass Biology (General) IHRT Normobaric hypoxia Original Paper training Intermittent hypoxic resistance training business.industry intermittent hypoxic resistance 030229 sport sciences Hypoxia (medical) Endocrinology Sports medicine medicine.symptom business RC1200-1245 |
| Zdroj: | Biology of Sport Biology of Sport, Vol 37, Iss 2, Pp 121-129 (2020) |
| ISSN: | 0860-021X |
| Popis: | The addition of a hypoxic stimulus during resistance training is suggested to increase the metabolic responses, enhancing hypertrophy and muscle strength. The purpose of this study was to investigate the effects of resistance training performed at submaximal intensities combined with normobaric hypoxia on muscular performance, body composition and haematological parameters. Thirty-two untrained subjects participated in this study (weight: 74.68±12.89 kg; height: 175±0.08 cm; BMI: 24.28±3.80 kg/m2 ). They were randomized to two groups: hypoxia (FiO2 = 13%) or normoxia (FiO2 = 20.9%). The training programme lasted 7 weeks (3 d/w) and several muscle groups were exercised (3 sets x 65−80% 1RM to failure). Measurements were taken before, after the training and after a 3-week detraining period. Body composition and muscle mass were assessed through skinfolds and muscle girths. Muscle strength was evaluated by the 1RM estimated test. Finally, haemoglobin and haematocrit were taken from the antecubital vein. Both groups improved their strength performance and muscle perimeters, but the hypoxia group obtained a greater increase in muscle mass (hypoxia: +1.80% vs. normoxia: +0.38%; p |
| Databáze: | OpenAIRE |
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