So I will be grilling him on things, but especially when I can return to certain activities especially because my prosthetic relies entirely on bone ingrowth (no screws or cement, just press fit until the bone grows into it).
A good reason to s-l-o-w your roll. If I am understanding you, you're riding the stationary bike on the days you're not
walking five miles? Five miles feels pretty ambitious to me. Wondering how you're handling those walks and whether you're still icing?
As far as sand volleyball / walking on sand, a word of caution, your gait changes while walking on sand. It's more of a workout. Beach sand provides an unpredictable and uneven walking surface. This can place increased
stress / strain and loading on your joints. Walking in the softer sand requires increased energy expenditure, forcing you to work harder, compared to walking on an even, firm surface. The foot will sink slightly into the sand. This will provide the least amount of stability, which forces you to use muscles throughout your legs more.
Five weeks out is still very early in the entire scheme of things. Lots of healing still happening.
Go slow now to go fast later.