it happened to be the KS Kickboxing DVD. (I do think I like it.)
I too am a little concerned about injury since these moves are quite different and new. I decided this:
1. I took the workout very easy in order to do the moves safely and correctly. I'll continue to do so until I feel I can be more aggressive.
2. I watched the technique sections carefully.
3. I decided to give myself time. Kathy mentions that Keli had been doing kickbox for 5 years!! I realized this is something that takes time and practice. You can't expect to jump in there and be looking like a pro after a few workouts - - this is a sport/art.
Be patient with yourself with whatever VHS/DVD you select. I think giving myself pep talk increases the possibility that I will enjoy kickboxing and have another form of exercise to rotate into my fitness routine.
BTW, even though I took the workout "easy" I felt muscles in my back that I don't normally feel even in my weight workouts the next day. It wasn't a "bad" sore - - it was that "hey, I did a workout" sore!!
Good luck!!