I think Open leg rocker is one of the most fun original Pilates mat exercises because its open form and rocking motion give a feeling of freedom.
Who was Joseph Pilates (really)?
Joseph Pilates Lesson Plan Free PDF
How to Do the Open Leg Rocker
The Power of Incremental Change: Open Leg Rocker Edition - Pilates Andrea
Pilates Mat - Open Leg Rocker Exercise
Open Leg Rocker Prep on the Mat
8. Build your own Pilates workout: Open Leg Rocker prep
Pilates Exercise: Open Leg Rocker
Lotus.
Open Leg Rocker Workout routine, Exercise, Pilates workout
The Pilates Barre