Mountain Climber Lunge

Instructions

1. Begin in a high plank position with hands directly under your shoulders and core tight.
2. Drive one knee forward toward your chest in a fast mountain-climber motion.
3. As you extend that leg back, step the same foot forward into a deep lunge position.
4. Push back to the plank position and repeat the sequence on the opposite leg.
5. Alternate sides continuously for the desired number of reps.