https://www.selleckchem.com/pr....oducts/e7766-diammon
OBJECTIVE Myoelectric activity of neck extensor muscles and head kinematic variables, when using a smartphone for one-handed browsing and two-handed texting while sitting, standing, and walking, were evaluated to compare the neck muscular load during these tasks and across the posture conditions. BACKGROUND There has been limited research on the relation between head-down postures and the muscular load on the neck of smartphone users. METHODS Twenty-one asymptomatic young users were asked to perform one-handed browsing and
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