Difficulty: Moderately Easy
Step1
Stand straight up, with your feet about shoulder-width apart. Inhale deeply, and sit back and down - as if to sit in a chair - until your hamstrings come into contact with your calves. Keep your feet flat on the floor - your upper body will lean forward slightly, to maintain balance.
Step2
Ascend by pushing against the floor through your heels. Unfold slowly and smoothly, from the chest on down through the hips. Keep your weight from shifting forward over your toes.
Step3
Take a deep breath, and step forward with one foot, while keeping your back leg bent slightly underneath you, for support. Bring your forward leg about a foot and a half in front of you, so your knee sits at a ninety degree angle (and don't let your knee twist to one side).
Step4
Slowly lift your body back to Step 1, using your forward leg.
Step5
Repeat this alternation - squat, then lunge - as appropriate for your fitness level.