2.4.1. Visual Analogue Scale (VAS)
musculoskeletal pain, pain
It is a 10 cm line with one end indicating no pain and other maximum possible self-perceived pain. The subject marks a line between the two-end reflecting his/her level of pain which is then measured as a distance from the first end. VAS is considered a valid and reliable measure of self-perceived musculoskeletal pain in previous studies [