Supta Padangusthasana Sequencing

Preparatory Poses
As Supta Padangusthasana can be practiced very gently with support of the floor it is possible to practice without little warm up.   Of course, it is possible to go deeper, when the blood is flowing through the hamstring, and this can be achieved by asanas such as:
• Adho Mukha Svanasana
• Baddha Konasana
• Uttanasana

Subsequent Poses
I like to practice Supta Padangusthasana prior to Baddha Konasana.  I find that with Supta Padangusthasana that the stretch of the internal thighs is not dramatic, but there is a comfortable feeling deeply in the hip joint, how the thigh head slides evenly into the centre of the joint.   Then when I try the normal Baddha Konasana immediately after this preparation (with the heating standing practice), I find my hip and knee joints open deeper.

It is also can be beneficial to do Supta Padangusthasana prior to other forward bends (Standing poses (uttanasana, Prasarita Padottanasana)) and seated forward bends (pascimottanasana)) in particular, as the hamsprings will have some initial openings that may be difficult to get to going directly into these poses (particularly if you have lower back pain/issues).   When I do  Supta Padangusthasana as an early warmup I like to hold the pose for 2-3 minutes and just breath deeply into the pose to allow the body time to commence opening up.