Question

Muscle atrophy is a decrease in muscle mass. Upon retiring, a weight lifter who works out less will likely experience atrophy of which types of muscles?

Slow twitch
Fast twitch
Myosin
Actin

Answer 1

Fast twitch muscles are those which provide large bust of energy in short period of time while fast twitch muscles provides endurance. A weight lifter mainly develops his slow twitch muscles while a runner like Usain Bolt develops his fast twitch muscles