Heteropterys tomentosa Improves the Endurance Capacity of Skeletal Muscles in Trained Rats
| Autor: | Fernando O. Catanho da Silva, Heidi Dolder, Gerson E. R. Campos, Juliana Castro Monteiro Pirovani, Marcos L. M. Gomes |
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| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
Heteropterys biology Stereology 030229 sport sciences Anatomy biology.organism_classification Extensor digitorum longus muscle 03 medical and health sciences Endurance capacity 0302 clinical medicine Endocrinology Endurance training 030220 oncology & carcinogenesis Internal medicine medicine medicine.symptom Muscle fibre Testosterone Muscle contraction |
| Zdroj: | IOSR Journal of Pharmacy and Biological Sciences. 11:39-45 |
| ISSN: | 2278-3008 2319-7676 |
| Popis: | The association of Heteropterys tomentosa infusion with endurance training improves the efficiency of the extracellular matrix remodeling, resulting in more resistant tendons to support high loads from intense muscle contraction. The present study aimed to evaluate the effect of H. tomentosa infusion on the skeletal muscles of sedentary and exercised animals. Male Wistar rats were divided into: controls sedentary and trained receiving water, plant sedentary and trained receiving 104 mg/day of H. tomentosa infusion. The extensor digitorum longus muscle was harvested and used for histochemical, molecular and ultrastructural analysis. The main muscle fiber types were identified by m-ATPase technique. The point-sampling technique of classical stereology was employed to measure capillaries, muscular fiber and mitochondrial volume density. Testosterone levels and androgen receptor content increased significantly in plant sedentary animals. The muscle cross- section area of the plant trained animals increased significantly after training. Capillary and mitochondria volume density were significantly higher in the plant trained group compared to other groups. However, the association of H. tomentosa and endurance training resulted in increased mean area of oxidative muscle fiber, capillary and mitochondrial volume density suggesting a potential increase of the endurance capacity of these |
| Databáze: | OpenAIRE |
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