Finalist 2024

Cadence: Assistive Wearable for Parkinson’s Disease

Vivek Barapatre

Cadence - a solution to alleviate walking and gait disturbances in Parkinson’s Disease (PD) by leveraging sensory cueing through wearable technology.

Many people living with PD experience a multitude of difficulties with walking and gait management. Gait Disturbances frequently cause disability and impairment in PD and significantly impact quality of life. Cadence is a wearable assistive device developed to alleviate these disturbances.

Cadence leverages clinically proven sensory cueing technologies to help establish a constant gait pattern by providing rhythmic cues. A green laser line and under-sole vibratory stimulation help the brain initiate and maintain the necessary movements for walking. Cadence is designed to enhance the confidence of people with PD, enabling them to move on their own with greater independency.

Design Brief:

Cadences’ design brief was outlined to address the mobility issues faced by people with Parkinson’s disease, particularly the gait disturbances that severely impact their quality of life. Parkinson’s patients often experience difficulties like slow movements, postural instability, and episodes of freezing of gait (FOG). These symptoms not only hinder their ability to walk but also increase the risk of falls and injuries.

The intended outcome was to create a wearable solution that could seamlessly integrate into the users’ daily lives, providing continuous support to improve their walking abilities. By utilising proven, yet perhaps underutilised sensory cueing technology in the form of visual, auditory, or haptic feedback, the goal was to develop a product that would help users establish a consistent gait pattern, thus enhancing their independence and overall well-being. The design needed to be both functional and discreet, and in turn, minimize the stigma associated with medical aids.


This project was developed by:

  • Vivek Barapatre

Design Process

The design process was methodically structured into two distinct phases. The initial phase began with comprehensive research and development to understand the project’s context, scope, and inherent challenges. Through extensive engagement with health professionals, literature reviews, personal case studies, user observations, journey mapping, and online surveys, potential market gaps were identified, and various technological interventions were explored. This holistic approach provided deep insights into user needs and the effectiveness of the various and/or combination of cueing modalities.

Among these findings, visual cueing emerged as the most promising solution for individuals with Parkinson’s disease, particularly through the use of laser light projections. Studies consistently showed positive responses to projecting a guiding line in front of the user’s foot, suggesting its potential for improving mobility and stability.

The second phase focused on refining design concepts and practical implementation. A prototype was developed to experiment with optimal body placement for the cueing device. Research into footwear challenges and sensory issues specific to Parkinson’s patients informed iterative sketching and physical prototyping to develop concept designs. Regular consultations with health professionals at this stage in the process provided crucial feedback, assisting in the evaluation process of two possible design pathways.

By presenting concept sketches and prototypes to health professionals throughout the iterative development process, the project’s viability and effectiveness were continuously evaluated and refined. This approach not only ensured alignment with user needs but also guided the project towards a successful outcome.

Design Excellence

Cadence excels in addressing the mobility challenges faced by individuals with Parkinson’s disease through a functional, yet aesthetic and convenient novel design. By embedding hands-free, real-time cueing technologies within a pair of everyday shoes, Cadence offers a practical and intuitive solution to improve gait patterns without directly drawing attention to the disability, allowing users to feel more confident and independent in their daily lives. Customizable to each individual, the green laser line and vibratory stimulation provide consistent and reliable sensory cues that help users overcome freezing of gait (FOG) episodes, maintain a steady pace, and reduce the risk of falls.

Central to the user experience was a redesign of conventional shoes’ key touchpoints to enhance comfort and ease of use, designed specifically to cater to the needs of people with Parkinson’s. Crafted from premium leather, the shoe features a large openable back that expands accessibility for foot insertion. Replacing traditional laces with convenient Velcro straps simplifies fastening. Wider soles enhance balance and stability, reducing the risk of toe-curling and swelling. Cadence also considers sustainable practices by facilitating modular components so that the hardware and components can be transferred and re-used.

Recent reports by the WHO suggest that more than 10 million people are currently living with Parkinson’s disease, with this figure expected to double by 2040. Cadence has the potential to set a new global benchmark for good design by combining functionality and practicality, with aesthetics and user experience in the field of assistive medical aids. By integrating proven technologies within everyday footwear, this project exemplifies how thoughtful design can address complex health challenges, providing a potential blueprint for future innovations in the field of assistive technology.

Design Innovation

Cadence addresses the challenges faced by individuals with Parkinson’s disease through the innovative application of sensory cueing technology. This emerging technology, which has limited real-world applications on the market despite its proven efficacy, is mostly confined to clinical or controlled settings. This restriction significantly hinders its effectiveness in real-life situations, where individuals face constant daily challenges associated with Parkinson’s and gait disturbances.

While therapy and rehabilitation sessions are vital for managing Parkinson’s, it is crucial that patients can access and utilize these tools in their daily lives where it matters most. Cadence enhances this accessibility by providing individuals with the appropriate tools to foster mobility and increase participation in daily activities, ultimately helping to improve their overall quality of life.

What sets Cadence apart is its unique approach to integrating sensory cues that work in real-time with users while they are out in the real world. The hands-free design ensures that the stimuli are provided in a way that does not require multitasking or add additional burdensome tasks, a common drawback of many mobility aids. This feature allows users to focus on their movement without being encumbered by the technology aiding them.

Cadence bridges the gap between science and design, offering a solution that is discreet, efficient, and stylish. This integration allows users to address their gait disturbances comfortably, without drawing attention to their condition or feeling stigmatized. By combining functionality with aesthetic appeal, Cadence empowers individuals to manage their mobility challenges effectively, thereby enhancing their independence and quality of life.

Design Impact

Cadence aims to significantly enhance the mobility and independence of individuals with Parkinson’s disease, directly addressing the motor symptoms that hinder daily activities. By integrating assistive technology into wearable devices, Cadence supports a more active and fulfilling lifestyle, aiming to improve the overall quality of life for users.

A key aspect of Cadence is its focus on reducing the stigma associated with medical aids. By transforming these aids into fashionable accessories, Cadence shifts the perception from disability management to style and personal expression. This approach not only enhances the user’s confidence but also promotes a more inclusive and accepting society.

Cadence also considered sustainable practices throughout the development process. Modularity with the hardware ensures that components can be easily replaced or upgraded, extending the lifespan of the parts beyond the typical 18 months associated with conventional footwear. This not only reduces waste but also offers a cost-effective solution for users, as they can replace parts rather than the entire device.

Cadence also has the potential to minimize and reduce the need for hospitalizations and dependency on pharmacological interventions, alleviating the burden on healthcare systems and caregivers. This not only has the potential to improve patient outcomes but also reduces the financial strain on healthcare providers and families, contributing to a more sustainable and efficient healthcare system.

In summary, Cadence offers a holistic impact by enhancing the quality of life for individuals with Parkinson’s, reducing stigma through fashionable design, promoting sustainability with its modular approach, and alleviating healthcare and caregiver burdens.

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