Il video spiega come eseguire in maniera corretta l’esercizio denominato “Cross Arm Ball Crunch” che serve ad allenare l’addome alto e fa dunque molto bene per pancia e fianchi, Nell’esercizio si utilizza la Stability Ball.
This website uses IntenseDebate comments, but they are not currently loaded because either your browser doesn't support JavaScript, or they didn't load fast enough.