Assistive mobility devices support independence for people with lower-limb disabilities, yet many are designed and evaluated in clinical or controlled environments. In Indian households, narrow spaces and dense furniture often make assistive devices difficult to use indoors, leading people to rely on improvised movements or support from family members and caregivers. In this work, we explore domestic mobility through a participatory and co-speculative design approach, focusing on how people with lower-limb disabilities navigate and maneuver within their homes. We conducted a series of semi-structured interviews and bespoke booklet-based participatory workshops with 22 participants with lower-limb impairments. To support reflection and discussion, we designed bilingual bespoke booklets grounded in domestic design frictions, using images and scenarios to encourage storytelling, critique, and speculation. Our findings reveal mobility challenges that differ significantly from those typically observed in clinical contexts. Rather than yielding a fixed set of design solutions, the study contributes situated insights into domestic mobility frictions, participant articulation, and the limits of speculative participation in this context.

翻译：辅助移动设备能支持下肢残障人士的自主生活，但许多设备的设计与评估均在临床或受控环境中进行。在印度家庭中，狭窄的空间与密集的家具常导致辅助设备难以在室内使用，迫使人们依赖即兴移动方式或家人及照护者的支持。本研究通过参与式与共同推测的设计方法，探索家庭环境中的移动问题，重点关注下肢残障人士如何在居所内导航和活动。我们与22名下肢损伤参与者开展了一系列半结构化访谈及基于定制手册的参与式研讨会。为促进反思与讨论，我们设计了基于家庭设计摩擦的双语定制手册，通过图像与场景激发叙事、批评与推测。研究揭示的移动挑战与临床环境中观察到的典型问题存在显著差异。本研究并未提供一套固定的设计方案，而是贡献了关于家庭环境移动摩擦、参与者表达以及该情境下推测性参与局限性的情境化洞见。