Half wheel pose is already considered an intermediate posture because of the level of flexibility required in the torso, and the strength and stability needed to remain upright in the posture.
This pose is beneficial for the body in a number of ways. It provides a powerful stretch for the front of the body, releasing the muscles of the chest and abdomen. At the same time, it strengthens the muscles of the back and the core, supporting the body in the backbend. It can even help improve posture and create a healthier spinal alignment by counteracting the effects of slouching during the day.
Half wheel pose is also thought to work internally, toning and stimulating the abdominal organs and improving digestive, excretory and respiratory function. It is also reputed to help with menstrual discomfort and pain.