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Adaptations of muscle tissue of rats submitted to aerobic and anaerobic physical training in different ergometer models / Adaptaciones en tejido muscular de ratas sometidas a entrenamiento físico aeróbico y anaeróbico en diferentes modelos de ergómetros
Ozaki, Guilherme Akio Tamura; Filho, José Carlos Silva Camargo; Castoldi, Robson Chacon; Garcia, Thiago Alves; Aleixo, Paulo Henrique; Camargo, Regina Celi Trindade; Carmo, Edna Maria do; Belangero, William Dias.
  • Ozaki, Guilherme Akio Tamura; University of Campinas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Filho, José Carlos Silva Camargo; UNESP. Faculty of Science and Technology. Department of Physiotherapy. São Paulo. BR
  • Castoldi, Robson Chacon; University of Western São Paulo. Department of Physical Education. São Paulo. BR
  • Garcia, Thiago Alves; University of Campinas. Department of Orthopedics and Traumatology. São Paulo. BR
  • Aleixo, Paulo Henrique; UNESP. Faculty of Science and Technology. Department of Physiotherapy. São Paulo. BR
  • Camargo, Regina Celi Trindade; UNESP. Faculty of Science and Technology. Department of Physiotherapy. São Paulo. BR
  • Carmo, Edna Maria do; UNESP. Faculty of Science and Technology. Department of Physiotherapy. São Paulo. BR
  • Belangero, William Dias; University of Campinas. Department of Orthopedics and Traumatology. São Paulo. BR
Int. j. morphol ; 36(4): 1161-1167, Dec. 2018. graf
Article in English | LILACS | ID: biblio-975675
ABSTRACT
SUMMARY The objective of the present study was to analyze the effects of four different training models, two aerobic and two anaerobic models, in relation to muscular hypertrophy, by means of morphometric analysis of the muscle cells of the soleus muscle and the extensor digitorum longus muscle (EDL). The animals were divided into five groups, control (C), aerobic training in swimming (ATS), resistance training in water (RTW), aerobic training on a treadmill (ATT), and resistance training in climbing (RTC). The aerobic training was performed at 70 % of the anaerobic threshold for 30 minutes, while the RTW was composed of 3 series of 10 jumps, and the RTC 4 series of climbs, both at 80 % of the maximum load. All training protocols were performed for a total period of 4 weeks, 3 times per week. The diameters of the muscle cells were measured by means of histological slides of the EDL and soleus muscles. For the EDL muscle, there was no difference between the ATS and ATT aerobic training models (p = 0.20). However, the RTW presented greater hypertrophy when compared to the RTC (p <0.01). Regarding the soleus muscle, the ATS was responsible for generating greater hypertrophy than the ATT (p <0.01). In addition, the RTC was more efficient at producing hypertrophy than the RTW (p <0.01). In this way, it was concluded that exercise adaptation was according to exercise type, aerobic or anaerobic, and not to the modality used.
RESUMEN
RESUMEN El objetivo del estudio fue analizar los efectos de cuatro diferentes modelos de entrenamiento, dos aeróbicos y dos anaeróbicos en la hipertrofia muscular en ratas, a través del análisis morfométrico de las células musculares de los músculos sóleo y extensor largo de los dedos (ELD). Los animales fueran divididos en cinco grupos control (C), entrenamiento aeróbico en natación (TAN), entrenamiento resistido en medio acuático (TRA), entrenamiento resistido en escalada (TRE) y entrenamiento aeróbico en estera rodante (TRE). Los entrenamientos aeróbicos fueron realizados a 70 % del umbral anaeróbico, durante 30 minutos, en cuanto los TRA fueron realizados por 3 series de 10 saltos y el TRE, 4 series de escaladas, ambos a la intensidad de 80 % de la carga máxima. Todos los protocolos de entrenamientos fueron realizados tres veces a la semana por un período de 4 semanas. Fueron demarcados los diámetros de las células musculares de los músculos ELD y sóleo por medio de láminas histológicas. En el músculo ELD no se pudo observar diferencia entre los modelos de entrenamiento aeróbico TAN y TAE (p=0,20). Además, el TRA demostró mayor hipertrofia comparado al TRE (p<0,01). Con relación al músculo sóleo, el TAN fue responsable de generar mayor hipertrofia respecto al TRA (p<0,01). De este modo es posible concluir que la adaptación depende del tipo de ejercicio, aeróbico o anaeróbico, y no en función de la modalidad utilizada.
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Full text: Available Index: LILACS (Americas) Main subject: Exercise / Muscles Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP/BR / University of Campinas/BR / University of Western São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Exercise / Muscles Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP/BR / University of Campinas/BR / University of Western São Paulo/BR