	Neurogenic		Spinal cord-induced	Arterial
	Cauda equina	Nerve root	Spinal cord-induced	Arterial
Induction	Walking (with postural factor)	Walking (with postural factor)	Walking (without postural factor)	Walking (without postural factor)
Symptoms	Abnormal sensation, such as numbness and cold sense	Pain	Abnormal sensation, such as heaviness and dullness, not typicalpain	Pain
Location of symptoms	Posterior surface of the lower limb, bilateral	Posterior surface of the lower limb, unilateral	Entire lower limb, bilateral	Posterior surface of the crus over the foot, unilateral
Arterial pulse	Normal	Normal	Normal	Lost or weakened