Core strength is best built whilst balancing a weight in an overhead position. In this case with a barbell. Exploding upwards from the floor as to defy gravity with this movement improves the transition of strength into power.
Muscles Focused: Abdominals
– Lay flat on the floor with your knees bent
– Take a wide grip on the barbell (outside of shoulders width) with your elbows locked out
– Drive your lower back into the floor using your core strength to explode upwards whilst keeping your arms locked with the bar above your head
– Keep your chest high