No fighter needs to move down, fighters need to move up!

[Sleepwalker]

I don't see how losing muscle mass can benefit someone in a sport as grueling as boxing, where even the most seemingly marginal differences can be a big advantage/disadvantage and have aa huge influence on the outcome of a fight.

[IamInuit]

I don't see how losing muscle mass can benefit someone in a sport as grueling as boxing, where even the most seemingly marginal differences can be a big advantage/disadvantage and have aa huge influence on the outcome of a fight.

It doesn't. If it was not a problem history would be full of examples. Although rarely attempted it also has about a 100% failure rate. Other then that its a great idea.