Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Strong back? I don't think so...

Misleading title...If you suffer low back pain and need help strengthening those muscles this is NOT the dvd for you. If you have problems rotating at the mid back or suffer muscle spasms in the lat area this will cause problems as it did for me. If you want an upper/mid back mild stretch then by all means buy it because it is definately good for that. If you need to gain strength in the core to aleviate low back pain NOT due to injury but due to inactivity then I would suggest Back In Action Total Fitness For Your Core by Jon Mello. This will give you the exercise foundation you need.