What is this workout and who is it by? I've seen that a few people are doing it. Elena
hrcfitness Cathlete Jan 11, 2011 #1 What is this workout and who is it by? I've seen that a few people are doing it. Elena
NinjaMom Cathlete Jan 11, 2011 #2 Here is the link to a previous post that should answer your questions: http://cathe.com/forum/showthread.php?t=280025&highlight=rapid+fire+kick,+box+core
Here is the link to a previous post that should answer your questions: http://cathe.com/forum/showthread.php?t=280025&highlight=rapid+fire+kick,+box+core