Originally posted by Aztec
Interesting! You lost your back arch/curvature from situps? Never heard that one before.
I differ w/ the Doc above on squats, especially with super light weights like you suggest. That's not enough to cause compression. And so long as you keep the natural back arch (ooops, which you don't have!)...
My back aches from standing more for than a few minutes or walking for more than an hour. I have too much curvature, and have to focus on contracting my abs/standing straight. I do glute/ham raises, reverse hyperextensions and sometimes plain old hyperextension as strengtheners. I should do more abs.
Being seated definitely helps, and the bike doesn't bother it -- even the aero position, which I love. And Doc, thinking back to your aero position note earlier, you should be able to do it, too, because the true aero position isn't really any more bend at the waist.
I have natural arch to look at. The loss of natural lordosis is clinical term for the miss-positioned vertebrae.
And stupid sit ups not just normal sit ups.
........I'd pin my toes under a thing, put a big disc on my chest or evern worse, hang upside down in gravity boots and touch my toes.
dumb, really dumb !