Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good for your back!

I'm 49 and have been doing a variety of pilates videos for a few years without trouble and found this one to be too difficult. I hurt my back trying to do this one and will not attempt it again. Do not get this if you are a beginner bacause you need a lot of strength. You have to be super limber to do the moves. I think thin women or those under age 20 might be able to do it. It's risky. Wouldn't recommend it.