The Influence of Body Mass Index and Smartphone Overuse on Cervical Myofascial Pain: A Cross-sectional Study

"Researchers measure pain pressure thresholds (PPTs) by applying a Pressure gauge algometer (PGA) over the myofascial trigger points (TrPs) on the body. PPT is defined as the lowest stimulus intensity at which a subject perceives pain.~The clinician applies it perpendicular to the long axis of the structure on which it is placed. The examiner increases the pressure at a rate of 1 kg/s until the subject feels pain or discomfort, and then the PPT values are measured three times for each muscle. Participants verbally report the first sensation of pain or discomfort, at which point the examiner stops the pressure."