: One-arm plank medicine ball taps...intended for the core but upper body and tricep gets a little work, too! 5 sets each arm, 15/12/10/10/8 👊💪😰 #fit #getfit #stayfit #abs #TRX #biceps #core #cardio #fitcoteam #fitspiration #fitnessvideo #fitnessaddict #gym_videos #instafitness #Bosu #quickworkout #workoutsbyyou #trainhard #training_videos #trainingvideos #workout #workoutvideos #gymrat #HIIT #pushups #triceps #tabata #onesetapp #medicineball