Posture
The current finding showed neck flexion at the 0° tablet tilt angle was larger than that at the 30° one but there were no significant changes in neck flexion at both tablet tilt angles over 40 minutes. Between tablet tilt angles, decreased neck flexion with the increased tablet tilt angle was consistent with previous studies [For shoulder posture, shoulder extension at the 30° tablet tilt angle was greater than that at 0°; moreover, shoulder posture at both tablet tilt angles remained steady over 40 minutes. On the contrary, Young et al. discovered that tablet users flexed their shoulders more during tablet use with the increased tilt angle [