This study proposes a novel approach to assess muscle fiber type distributions using electrical stimulation and surface electromyography (sEMG). By applying electrical impulses to muscles with different fiber dominance, we examine the temporal and frequency characteristics of the resulting responses. Our results demonstrate that non-selective and synchronized muscle fiber recruitment induced by electrical stimulation can provide valuable insights into muscle composition, particularly in the context of fiber type dominance. The methodology presented here could be utilized for muscle monitoring during processes such as the decay of fast fibers in sarcopenia, enabling early detection of this condition and potentially enhancing interventions for muscle health in aging populations.