Originally Posted by
Daniel4
Would cycling long distances everyday eat away at your muscle gain?
It uses energy (calories) that could go towards recovery. Eating more basically undoes this.
Running has been shown to have an "interference effect" meaning it will diminish your ability to grow muscle. Apart from energy demands. Cycling has not been shown to have this effect. The two best explanations I've heard (this isn't settled yet) are the types of muscle contractions in running, and that it's simply too much work to recover from with microfractures etc.