Total training load may explain similar strength gains and muscle hypertrophy seen in aged rats submitted to resistance training and anabolic steroids
| Autor: | Ricardo Aparecido Baptista Nucci, Walter Krause Neto, Wellington de Assis Silva, Eliane Florencio Gama, Danilo Sales Bocalini, Adriano Polican Ciena, Carlos Alberto Anaruma |
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| Přispěvatelé: | Univ Sao Judas Tadeu, Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Aging Anabolism Strength training viruses medicine.medical_treatment Muscle Fibers Skeletal Muscle hypertrophy 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Animals Humans Muscle Strength Training load Rats Wistar Muscle Skeletal Testosterone Congeners business.industry Resistance training Resistance Training 030229 sport sciences Hypertrophy biochemical phenomena metabolism and nutrition Rats Endocrinology rodents movement Geriatrics and Gerontology business 030217 neurology & neurosurgery Anabolic steroid |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1473-0790 |
| Popis: | Made available in DSpace on 2018-11-26T17:48:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01 This study aimed to quantify training parameters and analyze the morphological response of aged muscles submitted to resistance training and anabolic steroids. Aged Wistar rats were divided into groups: C - initial control; CF - final control; CAS - control with anabolic steroid, RT - resistance training, and RTA - resistance training with anabolic steroid. Maximum carried load, absolute and relative loads increased significantly in RT and RTA. RTA demonstrated greater relative load than RT. Average total volume, total climbing volume, relative total volume, relative total climbing volume, and mean climbing volume were similar between groups RT and RTA. For soleus, CAS, RT, and RTA enlarged cross-sectional area of type I fibers and nuclear ratio. As for type II fibers, RTA was higher than C and CF. For plantaris, RT and RTA showed significant increases in myofibers type I compared to C and CF. For type II fibers, RTA showed a significant increase compared to C and CF. Regarding the nuclear ratio, RT and RTA showed a higher ratio than C, CF, and CAS. Our results demonstrated that both RT and RTA were not different among the analyzed morphological parameters. This fact can be explained by the absence of differences found in the training variables analyzed. Univ Sao Judas Tadeu, Dept Phys Educ, Lab Morphoquantitat Studies & Immunohistochem, Sao Paulo, SP, Brazil Sao Paulo State Univ Julio de Mesquita Filho, Dept Phys Educ, Lab Morphol & Phys Act, Rio Claro, Brazil Univ Sao Judas Tadeu, Phys Educ & Aging Sci Program, Translat Physiol Lab, Sao Paulo, Brazil Sao Paulo State Univ Julio de Mesquita Filho, Dept Phys Educ, Lab Morphol & Phys Act, Rio Claro, Brazil |
| Databáze: | OpenAIRE |
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