TY - GEN
T1 - E-Carry
T2 - 2025 CHI Conference on Human Factors in Computing Systems, CHI EA 2025
AU - Zhang, Jiace
AU - Li, Zhiyu
AU - Zhang, Xiaoyu
AU - Li, Rong
AU - Zhang, Lige
AU - Chen, Jiawen
AU - Zhu, Yingying
AU - Nie, Qian
AU - Ren, Xipei
N1 - Publisher Copyright:
© 2025 Copyright held by the owner/author(s).
PY - 2025/4/26
Y1 - 2025/4/26
N2 - The backpack that people carry to school or work may lead to shoulder fatigue and pain, due to the constant static pressure it exerts. To address this issue, we propose E-Carry, an intelligent backpack shoulder harness based on the principle of Intermittent Pneumatic Compression (IPC) and background interaction principles (BIP) The E-Carry is designed to utilize intermittently inflating airbags as a dynamic alternating support structure to intervene in shoulder blood flow without distraction and to enhance comfort. In order to explore the effectiveness, in this paper, we conducted a within-subject experiment with twenty-four participants, in which we investigated the blood flow in the shoulder and user experience under three conditions: no weight, traditional backpack, and E-Carry. Results showed that E-Carry significantly improved blood flow, and transformed weight bearing into a positive massage experience by guiding the backpack design through contextual interactions.
AB - The backpack that people carry to school or work may lead to shoulder fatigue and pain, due to the constant static pressure it exerts. To address this issue, we propose E-Carry, an intelligent backpack shoulder harness based on the principle of Intermittent Pneumatic Compression (IPC) and background interaction principles (BIP) The E-Carry is designed to utilize intermittently inflating airbags as a dynamic alternating support structure to intervene in shoulder blood flow without distraction and to enhance comfort. In order to explore the effectiveness, in this paper, we conducted a within-subject experiment with twenty-four participants, in which we investigated the blood flow in the shoulder and user experience under three conditions: no weight, traditional backpack, and E-Carry. Results showed that E-Carry significantly improved blood flow, and transformed weight bearing into a positive massage experience by guiding the backpack design through contextual interactions.
KW - Background Interaction Principles (BIP)
KW - Backpack
KW - Blood Flow
KW - Fatigue
KW - Intermittent Pneumatic Compression (IPC)
KW - Shoulder
UR - http://www.scopus.com/inward/record.url?scp=105005762614&partnerID=8YFLogxK
U2 - 10.1145/3706599.3719750
DO - 10.1145/3706599.3719750
M3 - Conference contribution
AN - SCOPUS:105005762614
T3 - Conference on Human Factors in Computing Systems - Proceedings
BT - CHI EA 2025 - Extended Abstracts of the 2025 CHI Conference on Human Factors in Computing Systems
PB - Association for Computing Machinery
Y2 - 26 April 2025 through 1 May 2025
ER -