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Title: Endurance exercises that can be very bad for the knees.
Review: I'm writing a review because I don't want others to go through with the injury that I've had after doing this program. I gained about an inch or two while doing it, but I had to stop during my 4th of 5th week due to my knees hurting and swelling up. My right knee felt like it was going to give. I gained some inches and endurance, but eventually had major set backs like sitting out due to knee problems. I had an MRI done that thank God showed no signs of tears on any of my ligaments, but the pain and swelling has been there ever since I did this program in 2008. I never had knee problems before, but since doing Air Alert it all changed. Wish I had read reviews about this before I set out doing it. But for all of you that are curious, this review is a warning. I'm a weekend warrior and I want you all to stay the same and injured free. So with that said, good luck! Research, try other plyometric programs, not this one. Hope this helps.
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