I've asked a few questions on this site about, and have been doing some reading, on:
- muscle fibre types (slow twich and fast twitch)
- hypertrophy (myofibrillar and sarcoplasmic)
- energy systems (ATP-PC, anaerobic and aerobic)
and I was hoping someone could tell me how the three interlink.
Are the following statements correct?
As more muscle fibres are recruited (starting with slow-twitch and then progressing to fast-twitch), the energy systems used go from aerobic through to ATP-PC.
Myofibrillar hypertrophy is an adaptation that allows for greater maximal strength output whereas sarcoplasmic hypertrophy is an adaptation for more prolonged exercise of the muscle.
Can the two different forms of hypertrophy occur in both muscle fibre types?
It would seem to me as though sarcoplasmic hypertrophy predominately occurs in slow-twitch and myofibrillar only occurs in fast twitch but I know that bodybuilders aim for sarcoplasmic in fast-twitch since slow-twitch cannot get very big.