Author:
Barczyk-Pawelec Katarzyna,Sipko Tomasz
Abstract
IntroductionA cascade of biomechanical changes occurs with postural deviations. Therefore, this study aimed to determine the trunk position and spine shape during smartphone use.MethodsBody posture was tested by the photogrammetric method in habitual standing position and while using smartphones in 39 healthy subjects of both sexes.ResultsWhile using smartphones, the trunk was shifted backwards (F(1.37) = 166.19, p = 0.0000), and the angle of the cervical spine increased in both sexes (p < 0.05). Furthermore, the depth of thoracic kyphosis and lumbar lordosis increased (p < 0.001), though only in the female group, but there were no differences in cervical load between groups (p > 0.05).ConclusionsUsing a smartphone caused backward displacement of the upper torso in both sexes. It was also found that using a smartphone increased the depth of thoracic kyphosis and lumbar lordosis in females, which should be interpreted as a compensatory mechanism.
Reference37 articles.
1. Vate-U-Lan P. Text neck epidemic: a growing problem for smart phone users in Thailand. Int J Comput Internet Manag. 2015;23(3):27-32.
2. Development and Validation of a Smartphone Addiction Scale (SAS)
3. Statista. Number of smartphone users from 2016 to 2021. New York: Statista; 2020. Available from: https:// www.statista.com/statistics/330695/number-of-smartphone- users-worldwide/.
4. Hansraj KK. Assessment of stresses in the cervical spine caused by posture and position of the head. Surg Technol Int. 2014;25:277–279.
5. The Working Postures Among Schoolchildren?A Controlled Intervention Study on the Effects of Newly Designed Workstations