Claudication is the clinical term for calf and leg pain that occurs in patients with peripheral arterial disease (PAD) while exercising, typically walking.
The classic pain location is in the calves with walking. The mechanism is thought to be pain in muscles that are demanding more oxygen to exercise but getting less than they need (ischemia). Sometimes this pain is felt in the buttocks and/or posterior thigh areas mimicking sciatica or spinal stenosis.
Physicians instruct their patients with claudication to walk to improve their circulation. Patients and others report that, because walking is painful to patients with claudication, compliance is low.
Treadwell users have reported that tredling on a regular basis is a painless way to inhibit the onset of claudication, thus increasing the distances that they can walk with a resultant improvement in the quality of their lives.