Hey Rich, I can sure sympathize. I haven't had the hip resurfacing/replacement, but I'm on the way. As a young child I had perthes in one hip and 27-yrs of running has ground it down. Then add a couple breaks in my femur on the other leg earlier this year which meant getting a metal rod pushed through the hip to hold the rest of the femur together. So I've got both hips aching me now. Running again is certainly up in the air.<br>
I'll definitely be cycling and hope for touring events possibly. The calorie burn hasn't me too concerned, I just gotta eat less I suppose without running to burn more.<br>
But having lived with a tender & suseptible hip my whole life, I've gotten a good ride out of it by sticking to running on softer surfaces, trails mostly and treadmilling some. I've avoided the extreme pounding of jumping and hard starts/stops of things like basketball, tennis and such. And in recent years, I'd substituted a couple days of my training on the indoor rower, giving up junk mileage days and then running was just quality with cross-training making up the rest which also included commuting on the bike.<br>
If I were you Rich, and you can run again, I wouldn't give it up totally, but reign in the mileage and hard surfaces. Cross-train on the bicycle or rower and get a few quality, soft surface, runs in a week. Pick your favorite races of the year, maybe it's not marathons, but hit those favs hard with your 'new self' and soak up the aura for all it's worth. G'luck man!