'A stability ball is a type of ball commonly used in physical therapy and athletic training. Correctly measure a stability ball with help from a personal trainer, aqua therapist and swim coach in this free video clip.  Expert: Bridget McGrath Bio: Bridget McGrath is a certified personal trainer as well as an aqua therapist and swim coach with more than 10 years of experience. Filmmaker: David Kumpe  Series Description: Working out doesn\'t need to require thousands of dollars in expensive gym equipment. Get a complete workout sans machines with help from a personal trainer, aqua therapist and swim coach in this free video series.' 

Tags: personal trainer , stability ball , quick exercises , weight training , Quick And Easy , abdominal exercises , easy exercises , exercise training , workout help , without machines

SEE ALSO: that , bodybuilder � � , dancer , antren , mak , 2018 , SPORT , telugu zumba , ext , sab