I have worried about this from Day 1. I even got a standing wheelchair; and while it does offer other benefits, improving (or at least preserving) my bone density was the primary reason I got it. Only to find out later (a few years later, after diligently using it despite it boring the hell out of me on a daily basis) that static, or passive, standing does not improve bone density.
In addition to the loss of weight-bearing and use of my legs, I also have this severe atrophy which hastens the bone loss. I just lift my leg (with my hands, duh) and it feels so light; like the bones are made of styro-foam. And I feel defenseless. I want to be proactive, to do the things in my life necessary to prevent such problems from occurring in the first place. That is how I am used to facing problems. And now I feel like I can't.
Sure, there are drugs which work to try to preserve bone density; drugs like Fosamax and Boniva (among others). But, in addition to having the counter-intuitive side-effect of making you more prone to fracture; these are serious drugs. Serious drugs with serious implications on your body. With all the other medications many with SCI must take, adding this to the mix seems ill advised.
Especially when considering the futility of it all. Let's say you have a year's treatment with Boniva and you do show a preservation of bone mass (where there was a steady decline). What happens next year? Or the next? Or the next? These drugs, when used in ABs, have a body that has an active lower body in which to exert effectiveness. In our case, I don't see how taking drugs is a permanent solution to bone density concerns.
So am I just supposed to go around being paranoid, the longer I am in a chair? Scaling back the intensity of my training, my dedication? Every time I even bump my knee or hip relatively hard; or every time I accidentally drop my foot in the shower; I cringe. In part due to the pain and in part due to being scared that I'd just broken something. I guess this thread is just a vent, just a way to say I am scared about this.





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