Tracie Long, Susan Harris & Jen Carman have over 30 years of experience between them making fitness programs & teaching a variety of fitness classes. The medicine ball in this workout will take your cardio to new levels while ending the boredom of traditional, low impact moves. Small muscles are often overlooked in strength workouts but this programme focuses on the small 'stabilising' muscles of the body to improve posture & help avoid injury. Equipment needed: Light-medium weights (3-10 lbs) & a medicine ball (2-6 lbs).