I jumped off a cliff next to a waterfall and landing in the shallow water below. When I respawned in the water, my character was stuck in a mid-sprint pose regardless of where I moved. I floated above the water in this stuck position. I tried switch to combat mode and back to fix. Also tried jumping, sitting down, and lying down, but nothing worked. Interestingly, I would receive the benefits from things as if I was lying down, for example.

Also, a buddy of mine said that my character looked normal to him, so it seems the glitch was only on my end.