인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Objective: This study analyzes changes in biomechanical factors, depending on several smartphone usage configurations.
Background: Positioning a smartphone at an appropriate screen height and tilt angle using a holder could reduce physical stress for the user.
Method: Twelve participants watched videos using a smartphone in a recliner chair, with eight configurations (four screen heights, each with the presence or absence of a holder). The head flexion angle, head forward movement, viewing distance, and screen tilt angle were determined from marker data using a motion capture system. Muscular activities were recorded with electromyography sensors.
Results: The preferred screen height of participants using a holder was almost eye level, whereas when the holder was not used, it was approximately 15cm below eye level. The head flexion angle, head forward movement, and vertical viewing distance increased because the screen height was below eye level. The horizontal viewing distance with the holder was approximately 38±6cm, 1.27 times longer than that of 30±6cm when the holder was not used. The activities of the upper limb muscles decreased significantly when the holder was used.
Conclusion: The screen height and tilt angle showed a strong linear relationship. The simple linear regression equation for estimating the screen angle from the screen height was determined. Positioning a smartphone using a holder would reduce muscular pain and relieve visual discomfort for users through a longer viewing distance.
Application: The results of this study could provide design guidelines for developing a holder to adjust the smartphone screen height and screen tilt appropriately.
Background: Positioning a smartphone at an appropriate screen height and tilt angle using a holder could reduce physical stress for the user.
Method: Twelve participants watched videos using a smartphone in a recliner chair, with eight configurations (four screen heights, each with the presence or absence of a holder). The head flexion angle, head forward movement, viewing distance, and screen tilt angle were determined from marker data using a motion capture system. Muscular activities were recorded with electromyography sensors.
Results: The preferred screen height of participants using a holder was almost eye level, whereas when the holder was not used, it was approximately 15cm below eye level. The head flexion angle, head forward movement, and vertical viewing distance increased because the screen height was below eye level. The horizontal viewing distance with the holder was approximately 38±6cm, 1.27 times longer than that of 30±6cm when the holder was not used. The activities of the upper limb muscles decreased significantly when the holder was used.
Conclusion: The screen height and tilt angle showed a strong linear relationship. The simple linear regression equation for estimating the screen angle from the screen height was determined. Positioning a smartphone using a holder would reduce muscular pain and relieve visual discomfort for users through a longer viewing distance.
Application: The results of this study could provide design guidelines for developing a holder to adjust the smartphone screen height and screen tilt appropriately.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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