Hi all, Just checking something..... When I qualified the rule was to mix tracks from different releases after say 6 weeks... is this still the way we should deliver.???  The instructor who teaches on a different night to me stays with the same release for the whole 12 weeks!? Does anyone else ? What's the rule these days as I have ...

I'v been doing martial arts for 10yrs, and i just now got introduced to Body Combat through the YMCA in Texas, USA. I love it!!! I just ifnished my initial training, i wanted to die... 3500 calories burned on the second day. Anyway, i'm developing shin splints, where your muscle fibers are ripping away from the bone, literally, it hurts as bad as ...