The practical and bio-mechanical model doesn’t hold up.
Improvements in distance running from teaching people the pose method are related to improvements in running economy. The changes in the running biomechanics are for most people:
– increased stride rate
– decrease stride length
– forefoot landing.
These changes are proposed in the bio mechanical theory of pose running and hold up fine. The bio mechanical model of pose running propose a change in the angel of the body in the sagitale plan which is not true and in theory those not follow the laws of physics
Their is some evidence (in contrast to clear evidence) that forefoot landing improves running economy in long distance running. In contradiction to this their is also some evidence that changing striding pattern worsens running economy.
Marketing wise the pose method is a scam which sells well because people a charmed by the simple (but falls) logics of the method. In relation to teaching the model their are some ethical issues because of the increased incidence of metatarsal stress fractures and achilles and fascia plantaris pain from forefoot running in relation to distance running.