Weakness, SR function and stress in gastrocnemius muscles of aged male rats
Keywords: SR; sarcoplasmic reticulum; ER; endoplasmic reticulum; lo; optimal length; E-C coupling; excitation-contraction coupling; CSA; cross-sectional area; aSMase; acid sphingomyelinase; nSMase; neutral sphingomyelinase; SPT; serine palmitoyltransferase; GP;