90-90 ER active - passive - switch

Tutorial

1. 1
   Starting position: Bring the hip, knee and ankle joints to a 90° angle.
2. 2
   Front foot and rear lower leg on one line.
3. 3
   Execution: Press your front leg into the floor.
4. 4
   Pull the back leg back as far as possible --- and a little more (inner thigh stretch).
5. 5
   Then release the front leg and switch to the other side.
6. 6
   Then stretch the outside of the buttocks on the diagonal (external hip rotation).