... amplitude and quantal content are limited to limb muscles and do not reflect a general response across all muscles.An age-related decrease in cross-sectional area, in particular at type IIx and/ or ... hindlimb muscles from young and aged rats. Mechanisms of Ageing and Development, 125, 619–627.Lowe, D. A., Warren, G. L., Snow, L. M., Thompson, L. V., Thomas, D. D. (2004b). Muscle activ-ity and ... (Banker et al. 1983; Kelly and Robbins 1987). However, it is very important to compare across muscle fibers in a single muscle since type I muscle fibers in the soleus muscle are generally much...