Relationship of smartphone use time with cervical range of motion, shoulder-girdle muscle strength, posture, and neck pain in university students

Abstract

Aim: This study aimed to examine the relationship between smartphone (SP) use time and cervical range of motion, shoulder -girdle muscle strength, posture, and neck pain in university students. Material and Methods: 100 volunteers were divided into 4 groups according to their duration of use. Postural analysis, goniometric measurements, and manual muscle tests were performed. Results: When the difference between the groups in terms of neck pain was examined with the VAS -activity results, it was found that the difference was significant (p<0.05). The presence of scoliosis, passive and active neck extension, and neck range of motion (ROM) of passive rotation were found to be significantly different between the groups (p<0.05). Discussion: Long-term use of SP by young people could trigger neck pain, limit ROM, and cause postural impairments. Therefore, it is important to increase the awareness of individuals to minimize damage to the musculoskeletal system and maintain correct use and posture during SP usage.