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- research-articleDecember 2024
The underestimation of speed perception while walking in virtual reality with bodyweight unloading
AbstractAs space agencies prepare for long-duration missions, such as establishing a permanent moon base, maintaining astronauts’ physical and mental health becomes crucial. Exercise is known to counteract the adverse effects of space travel, and virtual ...
- abstractNovember 2024
Wireless Vibrant Virtual Walker: Wireless Foot Vibration Device for Virtual Walking Experience
This research proposes a wireless foot vibration device designed to enhance virtual walking experiences in virtual environments. The device, constructed from snowboard bindings and 3D-printed parts, features vibrators and pressure sensors to provide ...
- research-articleSeptember 2024
Sonifying gait kinematics: generating water wading sounds through a digital Foley approach
Personal and Ubiquitous Computing (PUC), Volume 28, Issue 5Pages 823–843https://doi.org/10.1007/s00779-024-01829-1AbstractIn the growing field of sonic interaction design, increasing emphasis is being placed on walking-based interactions within an array of applications, including virtual reality, interactive media, and rehabilitation. Our study focuses on recreating ...
- ArticleNovember 2024
Do Vibrotactile Patterns on both Hands Improve Guided Navigation with a Walker?
Haptics: Understanding Touch; Technology and Systems; Applications and InteractionPages 391–404https://doi.org/10.1007/978-3-031-70058-3_32AbstractCurrent assistive technologies for navigation guidance using non-visual feedback often rely on audiovisual cues only. Haptic cues can also provide rich information while leaving the auditory sensory channel unencumbered. By enhancing the sensory ...
- research-articleJune 2024
Revisited Threshold Detection in Redirection Techniques
ICVARS '24: Proceedings of the 2024 8th International Conference on Virtual and Augmented Reality SimulationsPages 28–34https://doi.org/10.1145/3657547.3657558Overlapping rooms and translation gains are two redirection techniques that enable users to navigate larger virtual environments within a limited physical space. It is crucial to apply these methods subtly to ensure user immersion, as previous research ...
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- research-articleMarch 2024
Integrating an LSTM framework for predicting ankle joint biomechanics during gait using inertial sensors
Computers in Biology and Medicine (CBIM), Volume 170, Issue Chttps://doi.org/10.1016/j.compbiomed.2024.108016AbstractThe ankle joint plays a crucial role in gait, facilitating the articulation of the lower limb, maintaining foot-ground contact, balancing the body, and transmitting the center of gravity. This study aimed to implement long short-term memory (LSTM)...
Graphical abstractDisplay Omitted
Highlights- Advanced LSTM-MLP model decodes complex temporal patterns, elevating biomechanical analysis accuracy.
- Data-driven wearable sensor data boosts ankle biomechanics evaluation, targeting real-world biomechanical applications.
- In-depth ...
- research-articleNovember 2023
Comparing a friction-based uni-directional treadmill and a slip-style omni-directional treadmill on first-time HMD-VR user task performance, cybersickness, postural sway, posture angle, ease of use, enjoyment, and effort
International Journal of Human-Computer Studies (IJHC), Volume 179, Issue Chttps://doi.org/10.1016/j.ijhcs.2023.103101Highlights- Uni-directional and omni-directional treadmills significantly increase cybersickness symptoms in HMD-VR users after 10 min.
- Omni-directional treadmills increase cybersickness symptoms in HMD-VR users significantly more than uni-...
Treadmills allow users to translate their real world walking into movement in virtual worlds. Conventional treadmills used for fitness can be repurposed for users to move around in virtual reality, but permit walking in only one direction (uni-...
- ArticleAugust 2023
Comparison of Proximal Leg Strain in Locomotor Model Organisms Using Robotic Legs
AbstractInsects use various sensory organs to monitor proprioceptive and exteroceptive information during walking. The measurement of forces in the exoskeleton is facilitated by campaniform sensilla (CS), which monitor resisted muscle forces through the ...
- ArticleOctober 2023
Effect of Lower Limb Exoskeleton Robot on Walking Function of Stroke Patients
AbstractObjective: To study the clinical effect of lower limb exoskeleton robot on walking function of stroke patients with hemiplegia.
Methods: 46 stroke patients with hemiplegia were divided into control group (conventional rehabilitation therapy + ...
- Work in ProgressApril 2023
Impact of User Mobility on Attentional Tunneling in Handheld AR
CHI EA '23: Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing SystemsArticle No.: 171, Pages 1–6https://doi.org/10.1145/3544549.3585692Attentional tunneling in augmented reality (AR) refers to a phenomenon where users pay disproportionately high attention to virtual content while ignoring events in the real world. Although many handheld AR applications are deployed in public places ...
- posterMarch 2023
The Effect of Posture on Virtual Walking Experience Using Foot Vibrations
AHs '23: Proceedings of the Augmented Humans International Conference 2023Pages 304–306https://doi.org/10.1145/3582700.3583699The virtual walking systems that do not involve physical movement of the legs has the advantage of being able to be experienced while seated or supine. The sensation of virtual walking can be effectively elicited through the combination of optic flow ...
- research-articleSeptember 2022
Effects of coordinate system and position of AR notification while walking
AbstractAugmented reality (AR) head-mounted displays (HMDs) allow users to easily receive notifications while participating other tasks by projecting information directly in their field of view. Although HMDs offer such benefits in displaying ...
- research-articleSeptember 2022
Step on it: asymmetric gain functions improve starting and stopping in virtual reality walking
AbstractTransfer functions with a high translational gain can increase the range of walking in virtual reality. These functions determine how much virtual movements are amplified compared to the corresponding physical movements. However, it is unclear how ...
- demonstrationAugust 2022
Open Forest: Data, Stories, and Walking-With
PDC '22: Proceedings of the Participatory Design Conference 2022 - Volume 2Pages 309–312https://doi.org/10.1145/3537797.3537864Open Forest is a collective, experimental inquiry into different forests and more-than-human dataflows. The project explores how forests and forest data can be produced, thought of and engaged with otherwise, in co-creative ways that consider ...
- ArticleJune 2022
The Influence of Font Size, Contrast, and Weight on Text Legibility for Wearable Devices
Engineering Psychology and Cognitive ErgonomicsPages 124–136https://doi.org/10.1007/978-3-031-06086-1_10AbstractWearable devices have a rapid development and popularity in the last decade, and the human-computer interaction issues in this field have become prominent. In general, the screen size of wearable devices is much smaller. Besides, the usage ...
- research-articleJune 2022
Multi-scale Learning for Multimodal Neurophysiological Signals: Gait Pattern Classification as an Example
Neural Processing Letters (NPLE), Volume 54, Issue 3Pages 2455–2470https://doi.org/10.1007/s11063-021-10738-wAbstractNeurophysiological signals are manifestations of the underlying brain activity, and they contain an abundance of neural information. The decoding and understanding of these signals is useful to develop robotic exoskeletons, benefitting device-...
- short-paperFebruary 2022
- short-paperFebruary 2022
Aveiro within us: Sensorial walk with real time live video composition
- Rui Filipe Antunes,
- Catarina Canelas,
- Cecilia de Lima,
- Daniel Tércio,
- Michele Luceac,
- Sérgio Bordalo e Sá,
- Sofia Soromenho
ARTECH '21: Proceedings of the 10th International Conference on Digital and Interactive ArtsArticle No.: 88, Pages 1–4https://doi.org/10.1145/3483529.3483735TEPe (Technologically Expanded Performance) is a research project that aims at the qualification of urban experiences, through the negotiation of different times in the city, assuming the capacity and deceleration of rhythms; in this way, it seeks to ...
- ArticleAugust 2021
Understanding Motivations and Barriers to Exercise Among People with Blindness in India
AbstractPeople with vision impairments (PVIs) have inferior physical fitness compared to sighted individuals. Several studies have been conducted to understand concerns, motivations, barriers, and experiences with exercise in the blind population. However,...
- research-articleMarch 2021
The effects of assistive walking robots for health care support on older persons: a preliminary field experiment in an elder care facility
Intelligent Service Robotics (SPISR), Volume 14, Issue 1Pages 25–32https://doi.org/10.1007/s11370-020-00345-4AbstractIn the present research, we prepared a human-size humanoid that autonomously navigates alongside with a walking person. Its utterances were controlled by Wizard-of-Oz method. A field experiment in which older persons walked in an elder care ...