Muscles Worked: Lower extremity, focus on quadriceps.

Starting Position
Start with your feet together. If you want to use dumbells, hold them in your hands with your palms facing your thighs.

INHALE: Perform a lunge with one leg. Make sure that your knee is not past your ankle.
EXHALE:Instead of returning to the starting position, bring your other foot even with the one that just completed the lunge.

MAKE SURE THAT YOUR FRONT KNEE DOES NOT GO PAST YOUR ANKLE. You may need to readjust by stepping out further. Hold onto a wall if you need to for balance.