Table 2: Initial and final body and medial gastrocnemius muscle (GM) mass.

GroupBody mass (g) ± SEMuscle mass (g) ± SE
Initial body massFinal body massFinal GM mass

Control ( )208.1 (±4.1)255.2 (±7.4)0.691 (±0.013)
PT ( )201.7 (±3.5)250.1 (±3.7)0.748 (±0.021)
PET ( 8)211.0 (±3.6)254.5 (±2.3)0.717 (±0.014)

PT: peak power training; PET: combined peak power training and additional endurance training. Values are mean ± SE.