Ball sit ups with weight Ball Sit-Ups with Weight Grab a sit-up ball and a weight plate. Make sure you are sitting approximately at a 90 degree angle, feet firmly on the ground. Hold the weight firmly with 2 hands at a 90 degree angle off your chest. Learn straight back and return to the original position. Sets: Reps: To best track your success, we have provided a form for you to input your daily exercise Loading...Loading...