Asanas prevent damage to the minute blood vessels which supply the nerves that normally get occluded due to the pathological state. As healthy micro-circulation and massage are provided by asanas, formation of new nerve sheaths are of a healthy nature. The skin is massaged and blood supply preserved. As fresh blood flows through, resistance to infections is built up. The skin does not become waxy and -unhealthy as it would usually be in a diabetic.
Elasticity is retained.
Certain specific diabetic skin lesions are prevented if regular yogic practice is resorted to. Standing poses, virasana, padmasana , mula bandhasana, inverted poses , are all helpful in preventing diabetic foot lesions. Pranayama is highly valuable for improving oxygen perfusion to the tissues. As it also removes stress on the system, progression of blockage is arrested. Oxygen delivery to the tissues is systematic and sure.