Originally Posted by ollinger
Your question is not really answerable as you give no diagnosis. "Low back pain" can have many causes. If we assume you have at least a partially herniated disk, both singles and doubles will potentially exacerbate the problem, singles likely moreso because of more running involved. A split-step is likely no worse than all the running and stopping involved in singles.
Offer me up 2 opinions since I have no clue whether it is a disc or muscle issue