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DESIGN OF A MULTI-CHAMBER ROTATIONAL BOTTLE CAP FOR PHASE-BASED HYDRATION SUPPLEMENTATION
Weizhen WANG; Zhou MU
Type:
Year:
2026
Editor:
Yong Se Kim; Yutaka Nomaguchi; Cees de Bont; Jianxi Luo; Xiaofang Yuan; Linna Hu; Meng Wang
Author:
Series:
Other endorsed
Institution:
Dalian Polytechnic University, China
Page(s):
131-138
Abstract:
Hydration and nutritional supplementation play a crucial role in maintaining performance and physiological stability during endurance sports. However, existing hydration solutions—such as traditional water bottles, wearable hydration packs, and smart bottles—are generally limited to single-liquid supply and fail to adapt to phase-based hydration needs. To address this issue, this study proposes a multi-chamber rotational bottle cap that supports phase-based hydration through independent liquid storage and one-handed switching. The design follows a design-driven optimization approach informed by the principles of modular design, affordance, human-centred ergonomics, and temporal adaptability, achieving a balanced integration of functionality, usability, and mechanical stability. A questionnaire survey was conducted among 30 participants with endurance training experience, evaluating four dimensions: one-handed user operation, leakage prevention and flow stability, visual identification, and willingness for multi-chamber switching. Most feature comparisons showed no significant difference, indicating overall functional balance, while the difference between visual identification and switching willingness was significant (t = -2.48, p = 0.019), reflecting users’ stronger preference for the switching function. These results confirm that the proposed design effectively meets user expectations for operational stability and functional reliability, providing a new direction for the human-centered and wearable design of sports hydration equipment.
Keywords:
