Best Cardio Machine for Lower Back Strengthening?
I'm looking at buying an Elliptical, Treadmill, Bike, Recumbent, or
Climber for Cardio. I'm id decent shape, less than 20 pounds over
I have chronic pain around a fused vertebrae in lower back, so want my
choice to also be the one that gives the most benefit as far as lower
back strengthening. (A rower would be too direct/painful.)
Is there a clear choice which of the above makes the right machine? I'm