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Effect of Smartphone Use on Upper Extremity and Neck

机译：智能手机对上肢和颈部的影响

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Smartphones nowadays are very popular and does most of the work from sending emails to attending meetings. However, Smartphone over-use has been studied from years now and there are many proven problems such as neck pain, back pain, headache, arm or wrist pain, psychological discomfort, etc. In this study, effect of screen sizes, task type and one/two hand on user muscle activities was investigated while users perform various tasks on Smartphone. Electromyography was used to assess muscle activities. Results showed that screen size and one/two handed use had significant main effects on users' muscle activity. Significant interaction effect was also found. For example, significantly less muscle activities were observed in hands while texting with two hands compared to one-hand. Gaming with two hands led to higher muscle activities on large screen Smartphone than small screen. The research could help users to choose more appropriate smart phones and develop a better usage habit.
机译：智能手机如今非常受欢迎，并且大部分工作都从发送电子邮件到出席会议。然而，智能手机过度使用已经从现在几年进行了研究，并且颈部疼痛，背部疼痛，头痛，手臂或手臂或手腕疼痛，心理不适等中存在许多经过验证的问题，屏幕尺寸，任务类型和在用户在智能手机上执行各种任务时，调查了用户肌肉活动的一只/两只手。肌电图用于评估肌肉活动。结果表明，屏幕尺寸和一/双手使用对用户的肌肉活动有重大影响。还发现了显着的相互作用效果。例如，在手中在手中观察到肌肉活动显着较小，而用双手发短信。用两只手的游戏导致大屏幕智能手机上的肌肉活动比小屏幕更高。该研究可以帮助用户选择更合适的智能手机并培养更好的使用习惯。

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