Table 1: Descriptive characteristics of young and middle-aged rats ( = 8) before exercise protocols expressed as mean ± SEM.

ParametersYoung rats Middle-aged rats
( = 8)( = 8)

Body weight (g)218.9 ± 10.02526 ± 12.31*
Epididymal fat (g/100 g)1.2 ± 0.23.9 ± 0.4*
Serum insulin (ng/mL)1.3 ± 0.54.2 ± 0.7*
Blood glucose (mg/dL)87.7 ± 7.5492.9 ± 6.92

significant difference versus young rats.