Table 1. Inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
Age 50 years or over	Cognitive impairment or other medical conditions preventing understanding or participation in the study
Bilateral neurogenic claudication symptoms (ie exercise induced leg pain on walking, relieved in sitting or flexion)	Clearly defined radicular symptoms (ie single nerve root symptoms)
Patient-reported limitation in walking tolerance due to NC symptoms	Signs or symptoms of acute cauda equina syndrome or severe or worsening neurological status requiring medical or surgical assessment. (This includes significant or worsening nerve root or cauda equina function, significant or sinister weight loss, pyrexia, unremitting pain, significant inflammatory joint disease)