AGE AND OBESITY INTERFERES IN MUSCLE HYPERTROPHY IN RATS UNDERGOING HIIT TRAINING
Resumen
Sarcopenic obesity is a condition characterized by the simultaneous presence of obesity and
sarcopenia, which is the loss of muscle mass and function. Is a growing concern, especially
among the elderly population, and it is important to address both obesity and sarcopenia
through lifestyle modifications, such as exercise and proper nutrition, to improve overall
health and quality of life. Our study aimed to evaluate the effect of HIIT training on the
muscle fiber area of the EDL muscle in obese rats of different ages. For that, Wistar rats, 7
and 12 months old, submitted or not to a HFD diet were subjected to HIIT training, 3 times a
week, on alternate days, for 8 consecutive weeks. After the euthanasia EDL muscles was
collected and processed histologically. Our data showed that HIIT training was able to
promote muscle hypertrophy even with consumption of this diet, indicating that practicing
this exercise can stimulate protein synthesis even under conditions of obesity.
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