Christine Bickley | Prone Cobra:
"This is a Functional Fitness exercise. The closest Pilates exercise is the Swan Dive. Whilst both exercises have their place, if you choose to do one of these exercises on a regular basis, this is the one I would recommend.
The purpose of the prone cobra is to:
Reduce thoracic kyphosis (upper back rounding) by contracting the back muscles
Reduce round-shouldered posture by contracting the muscles of external rotation at the shoulder girdle
Increase postural strength and endurance in the above areas
The lumbar spine and neck should be stabilized during the exercise so these muscles will benefit from a training effect when the exercise is performed correctly."