Thanks for the input.
I understand that much, so I guess myosin must just slide back into its original position. This is what I thought previously, but wikipedia says that we don’t know what happens to the myosin heads during eccentric contraction.
I’ve been told that muscle fibers all lengthen during eccentric contraction, but I’ve heard contradicting evidence from other sources.[/quote]
A couple things to consider are that these aren’t the only structures in a muscle and that these structures all behave differently at different lengthening velocities and magnitudes.
If you’re interested in this sort of thing, check out the works of Walter Herzog on PubMed. His lab has done some pretty cool work on the subject (as have others).