Investigation of the Effect of Screen Time Before Sleep on Posture Disorders and Dynamic Balance

The widespread use of electronic devices such as smartphones, tablets, and laptops has significantly increased screen exposure, especially before sleep. Prolonged screen use may contribute to poor posture by promoting forward head posture, rounded shoulders, and other musculoskeletal problems. In addition, screen exposure before sleep may negatively affect sleep quality and neuromuscular performance, which may in turn influence postural control and balance.

Postural disorders arise from the disruption of the natural alignment of the spine and are often associated with muscle imbalances, joint stress, and pain. Incorrect posture caused by prolonged technology use has been reported to increase the risk of musculoskeletal problems among young adults. Dynamic balance is an important component of postural control and is influenced by the integration of sensory input and neuromuscular responses. Sleep disturbances and lifestyle habits, including excessive screen exposure before sleep, may affect this complex system. Therefore, the aim of this study is to investigate the effect of screen time before sleep on posture disorders and dynamic balance in healthy young adults. Participants aged between 18 and 35 years will be evaluated for screen usage habits before sleep. Posture analysis and the Star Excursion Balance Test will be used to assess posture alignment and dynamic balance performance.

Inclusion Criteria: Healthy adults Age between 18 and 35 years Voluntary participation in the study Exclusion Criteria: History of orthopedic injury or surgery that may affect balance Use of medication that may affect attention performance Participants who refuse to sign the informed consent form or withdraw from the study