Alterations in Morphology and Aerobic Resistance of Rats Subjected to Different Physical Training Protocols

The objective of this study was to investigate the alterations in morphology and aerobic resistance of rats subjected to different physical training protocols. The study consisted of 55 rats of the “Wistar” breed, 100 days of age, over a period of 8 weeks. The animals were randomly distributed between four groups: control (CTLE); neuromuscular anaerobic (TAN); aerobic (TAE) and concurrent training (TCc). After four weeks, some of the animals were euthanized. The body mass index (BMI), Lee index (Lee), epididymal adipose tissue (TecAdp), body weight, and feed efficiency ratio (CoefAlim) were measured. The Anaerobic Threshold wa s determined by critical workload (7 %, 9 % and 11 % of body weight). TAE and TCc training caused alterations in Lee and BMI, at four and eight weeks respectively (LeeTAE=X:2.86 ±0.08; X:2.89±0.07 and LeeTCc=X:2.85 ±0.05; X:3.00±0.09). For the TecAdp, all groups presented a decrease, with the TCc value down after eight weeks (X:1.77 ±0.32). Finally, TAN training improved the CoefAlim (X:31.57±3.70) after the eight week period and the TCc presented the highest value for Lan (X:7.10 ±0.80).

[1]  L. F. Coladello,et al.  Effect of body composition on aerobic capacity of animals submitted to swimming exercise , 2016 .

[2]  M. B. Ferreira,et al.  Effects of food pattern change and physical exercise on cafeteria diet-induced obesity in female rats. , 2012, The British journal of nutrition.

[3]  N. Darcel,et al.  Inhibition of food intake induced by acute stress in rats is due to satiation effects , 2011, Physiology & Behavior.

[4]  J. Blundell,et al.  Acute and long-term effects of exercise on appetite control: is there any benefit for weight control? , 2010, Current opinion in clinical nutrition and metabolic care.

[5]  C. Gobatto,et al.  Critical load during continuous and discontinuous training in swimming Wistar rats , 2009 .

[6]  M. Dal‐Pai‐Silva,et al.  Calcaneal Tendon Regions Exhibit Different MMP‐2 Activation After Vertical Jumping and Treadmill Running , 2009, Anatomical record.

[7]  Carlos Ugrinowitsch,et al.  Efeito do treinamento concorrente no desenvolvimento da força motora e da resistência aeróbia , 2009 .

[8]  M. A. Mello,et al.  Máxima Fase estável de lactato em ratos obesos de ambos os gêneros , 2009 .

[9]  Cláudio Córdova,et al.  Exercício abaixo do limiar anaeróbio aumenta as atividades fagocítica e microbicida de neutrófilos em ratos Wistar , 2009 .

[10]  C. Chen,et al.  Influence of short- and long-term treadmill exercises on levels of ghrelin, obestatin and NPY in plasma and brain extraction of obese rats , 2008, Endocrine.

[11]  S. Woods,et al.  The effect of fat removal on glucose tolerance is depot specific in male and female mice. , 2007, American journal of physiology. Endocrinology and metabolism.

[12]  C. M. Galhardi,et al.  Anthropometrical parameters and markers of obesity in rats , 2007, Laboratory animals.

[13]  M. Papoti,et al.  The maximal lactate steady state is ergometer-dependent in experimental model using rats , 2006 .

[14]  A. R. Dâmaso,et al.  Efeito de diferentes freqüências de exercício físico na prevenção da dislipidemia e da obesidade em ratos normo e hipercolesterolêmicos , 2006 .

[15]  Claudio Gobatto,et al.  Exercício contínuo e intermitente: efeitos do treinamento e do destreinamento sobre a gordura corporal de ratos obesos , 2004 .

[16]  C. Gobatto,et al.  UTILIZATION OF AN HYPERBOLIC MODEL FOR THE DETERMINATION OF THE CRITICAL LOAD IN SWIMMING RATS. , 2002 .

[17]  K. Sjögren,et al.  Body fat content can be predicted in vivo in mice using a modified dual-energy X-ray absorptiometry technique. , 2001, The Journal of nutrition.

[18]  R. Burnham,et al.  Effect of concurrent strength and endurance training on skeletal muscle properties and hormone concentrations in humans , 2000, European Journal of Applied Physiology.

[19]  M. Papoti,et al.  Concurrent training effect on muscle fibers in Wistar rats , 2013 .

[20]  I. L. Pinheiro,et al.  Murinometric Evaluations and Feed Efficiency in Rats from Reduced Litter During Lactation and Submitted or Not to Swimming Exercise , 2011 .

[21]  M. Vaisman,et al.  Regulação da massa corpórea pelo estrogênio e pela atividade física Body mass regulation by estrogen and physical activity , 2009 .

[22]  B. Barry,et al.  Concurrent Strength and Endurance Training , 1999, Sports medicine.

[23]  José Luiz Bernardino Merusse,et al.  Manual para técnicos em bioterismo , 1996 .