: Medicine ball core training. đŸ’ĒđŸģI like to do these for time. Start with 30 seconds and build up to 1 minute. 👊đŸģ Tag someone who needs some new core exercises. 🙌đŸģ #coretraining #abs #medicineball #circuittraining #trainstrongfitness #corestability #corestrength #corepower