Related Experiment Video
Updated: May 25, 2026

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
Published on: April 28, 2020
Notebook computer use with different monitor tilt angle: effects on posture, muscle activity and discomfort of neck
Wen-Ko Chiou1, Wei-Ying Chou, Bi-Hui Chen
1Department of Industrial Design, Chang Gung University, Wen-Hwa 1st Road, Kwei-Shan Tao-Yuan, Taiwan, 333, ROC. wkchiu@mail.cgu.edu.tw
Abstract:
This study aimed to evaluate the posture, muscle activities, and self reported discomforts of neck pain notebook computer users on three monitor tilt conditions: 100°, 115°, and 130°. Six subjects were recruited in this study to completed typing tasks. Results showed subjects have a trend to show the forward head posture in the condition that monitor was set at 100°, and the significant less neck and shoulder discomfort were noted in the condition that monitor was set at 130°. These result suggested neck pain notebook user to set their monitor tilt angle at 130°.
Related Concept Videos
Skeletal Muscle Relaxants: Adverse Effects
Unlike...
Alterations in Muscle Tone ll
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Muscles that Move the Head
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
