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Modern lifestyle relies heavily on mobile technology. However, excessive smartphone use can lead to significant cognitive-motor interference. This phenomenon happens because the brain must divide limited cognitive resources between digital interaction and physical stability. Consequently, even healthy individuals may experience impaired postural control and gait instability during daily activities.
A recent study involved sixty participants to evaluate these effects. Researchers utilized the Timed Up and Go (TUG) test to measure mobility. Furthermore, they used digital balance boards to assess static stability. The results were clear. While participants engaged with smartphones, their motor performance deteriorated significantly. Specifically, TUG-motor and TUG-cognitive scores showed a marked decline compared to single-task conditions. Similarly, static balance became less stable during smartphone use.
Frequency of use also plays a vital role. For example, individuals who frequently use phones while walking showed more pronounced balance issues. Therefore, clinicians should recognize that high usage habits might increase fall risks. This is especially relevant in environments requiring high situational awareness. Because the brain prioritizes the cognitive task, physical safety often takes a backseat. Additionally, practitioners should educate patients about the dangers of distracted walking.
Maintaining balance is essential for preventing injuries. Since cognitive-motor interference directly impacts mobility, awareness is the first step toward prevention. Doctors should encourage patients to perform digital tasks while stationary. Ultimately, mindful technology habits can protect physical well-being. Notably, these findings suggest that even young, healthy adults are susceptible to stability loss.
Smartphone use triggers cognitive-motor interference by dividing the brain's attention between digital tasks and motor control. This division of resources often leads to increased postural sway and reduced physical stability.
Clinicians frequently use the Timed Up and Go (TUG) test to assess functional mobility and fall risk. Digital balance boards also provide objective measurements of static postural control during various tasks.
Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.
References
Söylemez E et al. Cognitive-motor interference: Effects of smartphone use on static balance and mobility. Appl Neuropsychol Adult. 2026 Mar 08. doi: 10.1080/23279095.2026.2636931. PMID: 41795842.
Lichenstein ED et al. The effect of texting on gait and cognitive performance in young and older adults. Gait Posture. 2016;45:102-107.
Chaves PM et al. Smartphone addiction and its association with postural balance. Healthcare (Basel). 2023;11(10):1412.
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