#workoutoftheday - dynamaxusa crunch and shelf. You’ll need a partner for this one so find your favorite gym rat and get after it. You can perform this movement for time or for reps, get creative with it and vary the ball size. You’ll want to start lighter than you think...trust me. Go get it! _ dynamaxusa #dynamax #medball #medicineball #mma #workout #workoutmotivation #fitness #fitnessmotivation dymatize peejay_cereal