Ellipticals, anyone have one?..

and use it?

I've been using a weider exercise machine for quite a while....But lately I've been experiencing some lwr back pain...And its consistent, I stop using the weider and the pain goes away. A little research says things like
leg lifts and setups are not recommended if the back is sore. I think the lower bar for leg lifts may be the culprit. The press, butterfly and high bar may not help either. So further research says ellipticals are a good thing..for people with back issues but still want to workout. But just looking at the way one is setup...I mean I get the leg stair stepping, but is there really much resistance on the levers you pull on while doing this? Does this work with the stepping?