issa

I want to become a personal trainer. I was thinking about getting certified through ISSA. Does anyone recommend any groups ahead of the ISSA?

NSCA is pretty good as well.

ISSA is ok, but ACSM and NSCA hold a little more clout in the fitness industry, so I would go with either of those.

NSCA

NASM. I loved it!

The IART (International Association of Resistance Trainers). The founder is Brian D Johnston. Check out www.iartonline.ca.