ABSTRACTThe purpose of this study was to determine how smartphone use posture affects biomechanical variables and muscle activities. Eleven university students(age: 22.2±2.6 yrs, height: 176.6±4.7 cm, weight: 69.5±7.5 kg) who have no musculoskeletal disorder were recruited as the subject according to having experience in using the smartphone for more than one year. Angular velocity, muscle activity, and thumb finger pressure were determined for each trial. For each dependent variable, a one-way analysis of va…
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