Asad BaigAhmad IlyasAli Hassan BukhariUsama SarwarNuman ArifM. Mushtaq2025-11-222025-11-222023https://escholar.umt.edu.pk/handle/123456789/12028Objectives: To find the prevalence of tech neck syndrome among university students who are on screen users and to find the significant association between tech neck syndrome and reduced chest expansion. Materials and methods: 100 confirmed cases of tech neck syndrome are taken who use on-screen devices on an average of about 4 or more than 4 hours and have significant forward head posture. Costovertebral angle was measured with the goniometer while the chest expansion was measured with the inches’ tape during respiration and inspiration phases, and the difference between them was recorded. Results: 54 participants out of 100 confirmed cases of tech neck syndrome have significantly reduced chest expansion, which is the final result of this study, while 46 participants have greater chest expansion and show that they are normal, but they have tech neck syndrome.enThesis