Position: Sit upright in the machine, back pressed against the board, head neutral/still. Hold on to handles provided. Thigh is rolled inward so while in full extension the knee cap is flush with the ground. This position will show the toes to be turned in slightly.
Breathing: Exhale when you exert at the start of the exercise and inhale when returning to start position.
Start/Movement/Finish: Seated with the knee angle less than 90 degrees. Lift one leg into an extended position without snapping or locking out in a hard motion. Pause and lower slowly. The second leg stays behind the leg pad in normal position and does not move so that the position of the hips is not altered.