Variability in vastus lateralis fiber type distribution, fiber size, and myonuclear content along and between the legs

This study provides a comprehensive analysis of the variability key human skeletal muscle fiber characteristics in multiple sites along and between musculus vastus lateralis healthy active individuals. We found notable but nonsystematic type size, whereas myonuclear content was distinctively less variable, prevalence IIX fibers random very low. These data are important to consider when designing interpreting studies including biopsies.