Build muscle.
Explosive movements increase muscle fiber recruitment. Simply put, the more muscle fiber you activate, the more fibers you can exhaust while training, increasing muscle size.
Are Explosive Reps good?
Doing explosive reps minimises the tension that is experienced by the muscle, however, these reps allow you to lift heavier weights. ... When you lift heavier weights, your overall strength and power increase. Explosive reps focus the load on the intended muscles.
Do fast reps build muscle?
While faster reps are generally linked to more explosive movements that result in power, training with this tempo can also produce gains in muscle size.