Acute Endocrine and Force Responses and Long-Term Adaptations to Same-Session Combined Strength and Endurance Training in Women
| Autor: | Moritz Schumann, Ritva S. Taipale, Mikel Izquierdo, William Kraemer, Keijo Häkkinen, Daniela Eklund |
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| Přispěvatelé: | Universidad Pública de Navarra. Departamento de Ciencias de la Salud, Nafarroako Unibertsitate Publikoa. Osasun Zientziak Saila |
| Rok vydání: | 2016 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Repetition maximum Physical Therapy Sports Therapy and Rehabilitation Growth hormone Quadriceps Muscle Muscle hypertrophy Young Adult 03 medical and health sciences 0302 clinical medicine Endurance training Internal medicine medicine Humans Endocrine system Concurrent training Testosterone Orthopedics and Sports Medicine Muscle Strength Exercise physiology ta315 Leg press Exercise Performance adaptations Ultrasonography Human Growth Hormone business.industry 030229 sport sciences General Medicine Order effect Adaptation Physiological Endocrinology Physical Endurance Female testosteroni business 030217 neurology & neurosurgery Physical Conditioning Human |
| Zdroj: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname Academica-e: Repositorio Institucional de la Universidad Pública de Navarra Universidad Pública de Navarra |
| ISSN: | 1064-8011 |
| Popis: | This study examined acute hormone and force responses and strength and endurance performance and muscle hypertrophy before and after 24 weeks of same-session combined strength and endurance training in previously untrained women. Subjects were assigned 1 of 2 training orders: endurance preceding strength (E + S, n = 15) or vice versa (S + E, n = 14). Acute force and hormone responses to a combined loading (continuous cycling and a leg press protocol in the assigned order) were measured. Additionally, leg press 1 repetition maximum (1RM), maximal workload during cycling (Wmax), and muscle cross-sectional area (CSA) were assessed. Loading-induced decreases in force were significant (p < 0.01–0.001) before (E + S = 20 ± 11%, S + E = 18 ± 5%) and after (E + S = 24 ± 6%, S + E = 22 ± 8%) training. Recovery was completed within 24 hours in both groups. The acute growth hormone (GH) response was significantly (p < 0.001) higher after S + E than E + S at both weeks 0 and 24. Testosterone was significantly (p < 0.001) elevated only after the S + E loading at week 24 but was not significantly different from E + S. Both groups significantly (p < 0.001) improved 1RM (E + S = 13 ± 12%, S + E = 16 ± 10%), Wmax (E + S = 21 ± 10%, S + E = 16 ± 12%), and CSA (E + S = 15 ± 10%, S + E = 11 ± 8%). This study showed that the acute GH response to combined endurance and strength loadings was significantly larger in S + E compared with E + S both before and after 24 weeks of same-session combined training. Strength and endurance performance and CSA increased to similar extents in both groups during 24 weeks despite differences in the kinetics of GH. Previously untrained women can improve performance and increase muscle CSA using either exercise order. |
| Databáze: | OpenAIRE |
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