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Aerobic Exercise Increases the Damage to the Femoral Properties of Growing Rats with Protein-Based Malnutrition
Miranda, Denise Coutinho de; Lavorato, Victor Neiva; Carneiro-Júnior, Miguel Araújo; Paula, Ana Beatriz Rezende de; Silva, Karina Ana; Drummond, Filipe Rios; Silva, Marcelo Eustáquio; Cabral, Carlos Augusto Costa; Isoldi, Mauro César; Natali, Antônio José.
  • Miranda, Denise Coutinho de; Federal University of Ouro Preto. Department of Biological Sciences. Ouro Preto. BR
  • Lavorato, Victor Neiva; Federal University of Ouro Preto. Department of Nutrition. Ouro Preto. BR
  • Carneiro-Júnior, Miguel Araújo; Federal University of Viçosa. Department of Physical Education. Viçosa. BR
  • Paula, Ana Beatriz Rezende de; Federal University of Ouro Preto. Department of Biological Sciences. Ouro Preto. BR
  • Silva, Karina Ana; Federal University of São Carlos. Department of Biological Sciences. São Carlos. BR
  • Drummond, Filipe Rios; Federal University of Viçosa. Department of Physical Education. Viçosa. BR
  • Silva, Marcelo Eustáquio; Federal University of Ouro Preto. Department of Nutrition. Ouro Preto. BR
  • Cabral, Carlos Augusto Costa; Federal University of Viçosa. Department of Physical Education. Viçosa. BR
  • Isoldi, Mauro César; Federal University of Ouro Preto. Department of Biological Sciences. Ouro Preto. BR
  • Natali, Antônio José; Federal University of Viçosa. Department of Physical Education. Viçosa. BR
Braz. arch. biol. technol ; 64: e21210085, 2021. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1355805
Responsible library: BR1.1
ABSTRACT
Abstract The present study investigated the effects of aerobic physical training on the femoral morphological, densitometric and biomechanical properties in growing male rats subjected to protein-based malnutrition. Four-week-old male Wistar rats were randomized into groups of 10 animals Control Sedentary (CS), Control Trained (CT), Malnourished Sedentary (MS) and Malnourished Trained (MT). Control and malnourished animals received diets with 12% protein and 6% protein, respectively. The trained groups were submitted to a treadmill running program for 8 weeks. Total proteins and albumin were analyzed in the animals' blood plasma. Histological, densitometric and biomechanical analyzes were performed on the animals' femur. Body mass gain, physical performance, biochemical markers and the femoral morphological, densitometric and biomechanical properties were determined. Exercise tolerance increased in trained groups. Malnourished animals exhibited lower serum protein and albumin levels than controls. Porosity and trabecular bone density were not different between groups. The femoral maximum load, maximum load until fracture, resilience, stiffness, tenacity and densitometric properties were reduced by malnutrition. Physical training associated with malnutrition exacerbated the impairment in the femoral maximum load, maximum load until fracture, bone mineral content and density. Aerobic physical training worsens the damages induced by protein-based malnutrition in the femoral biomechanical and densitometric properties of growing male rats.


Full text: Available Index: LILACS (Americas) Type of study: Controlled clinical trial Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Ouro Preto/BR / Federal University of São Carlos/BR / Federal University of Viçosa/BR

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Full text: Available Index: LILACS (Americas) Type of study: Controlled clinical trial Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Ouro Preto/BR / Federal University of São Carlos/BR / Federal University of Viçosa/BR