BYT

Lunge · Dumbbell · Learn first

Lateral lunge

Stand with the feet together, dumbbells at the sides, toes forward.

Lateral lunge
  1. 1Step wide to one side and sit that hip back. The other leg stays straight.
  2. 2The stepping heel stays down. The chest stays up.
  3. 3Push back to the start, then switch sides.

Easy to miss: The stepping knee caving in, or leaning so far that the heel lifts.

Muscles

Copper on the figure is a prime mover. The softer tone helps.