Assume athletic stance, holding dumbbells at side [or wearing weighted vest]
Step forward with right leg, lowering into lunge position with front knee behind toes
Drive up and step forward with left leg, lowering into lunge position
Repeat continuously for specified reps
Sets/Reps: 3x10 each leg
Gillett: This works glute and hip strength. We really want to make sure [both] are strong heading into the season. The glutes are where a pitcher generates his power. If they’re not strong, the hamstrings are at risk of injury.