Changes in body composition of Wistar rats: effects of high-intensity interval training




Body Composition, High-Intensity Interval Training, Physical Activity, Swimming.


The present study aimed to investigate the effectiveness of high-intensity interval training (HIIT) in the body composition of Wistar rats. The HIIT protocol consisted of high-intensity swimming three times a week for four weeks. There were no differences between groups as to the Lee index. However, the weights of the perigonadal (p=0.001) and retroperitoneal (p=0.026) fats were significantly different between the Control Group (CG, n=10) vs. Trained Group (TG, n=10), respectively. There was also a significant increase in the body weight of the animals in TG (16.43%) and CG (7.19%) at the end of the experiment. These findings suggested that HIIT was not sufficient to improve significantly the body composition of rats.


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How to Cite

MARQUES VIEIRA-SOUZA, L., J AIDAR, F., LOPES DOS SANTOS, J., KALININE, E., ALINE LIMA RODRIGUES, J., UILIEN DE OLIVEIRA, J., DENIELLE MATOS DOS SANTOS, J., GETIRANA MOTA, M., WALESKA DOS SANTOS and CARLOS MARÇAL, A., 2023. Changes in body composition of Wistar rats: effects of high-intensity interval training. Bioscience Journal [online], vol. 39, pp. e39014. [Accessed26 March 2023]. DOI 10.14393/BJ-v39n0a2023-62708. Available from:



Biological Sciences