Pain intensity
KOA, Pain, pain
Pain intensity at rest, when walking, when standing from a sitting position, and when climbing the stairs were assessed using the visual analogue scale (VAS), which is an assessment tool composed of a straight horizontal line of fixed length (usually 100 mm). The ends of the line represent the extreme limits of pain, with 0 indicating no pain and 10 representing extreme pain. The VAS was found to have excellent test–retest reliability (intraclass correlation coefficient = 0.97) in participants with KOA [