The stability ball back extension resembles a backward crunch. Learn the back extension on a stability ball with tips from a professional trainer in this free exercise video.
Expert: Carol Ann
Contact: www.StudioGroupX.com
Bio: Carol Ann, known as the trainers' trainer, has 19 years of professional fitness training experience and holds a master's degree in exercise science and health promotion.
Filmmaker: Christopher Rokosz
i cannot see through the writing. It really stresses my eyes.
corinutadraga 1 year ago
thanks! I would like to start a core class. This is helpful!
witnessforfitness 2 years ago
nice quality video, thanks for posting!
johngo6283 3 years ago