This study investigated the vibration perception differences between children with an idiopathic toe walking gait and their non-toe walking peers. Sixty children, between the ages of four and eight years, were grouped into an idiopathic toe walking group and non-toe walking group. Vibration perception threshold was assessed at the right hallux. A highly significant difference in the vibration perception threshold between the groups was determined. The idiopathic toe walking group demonstrated a lower vibration perception threshold (P = .001), indicating this group was highly sensitive to vibration input. This change in vibration perception could be symptomatic of physiological changes in the localized receptors within the skin or at a neural perception level. Heightened sensitivity to touch has not yet been explored with children who have an idiopathic toe walking gait. This finding could assist in understanding this gait pattern and allow further research into improved treatment options.
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http://dx.doi.org/10.1177/0883073811432748 | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, PA 15213.
Nat Commun
January 2025
Robotics Institute and State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.
Hydrogel-based soft machines are promising in diverse applications, such as biomedical electronics and soft robotics. However, current fabrication techniques generally struggle to construct multimaterial three-dimensional hydrogel architectures for soft machines and robots, owing to the inherent hydrogel softness from the low-density polymer network nature. Herein, we present a multimaterial cryogenic printing (MCP) technique that can fabricate sophisticated soft hydrogel machines with accurate yet complex architectures and robust multimaterial interfaces.
View Article and Find Full Text PDFBehav Res Methods
December 2024
Algoritmi Research Centre, University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal.
The vibration perception threshold (VPT) is the minimum amplitude required for conscious vibration perception. VPT assessments are essential in medical diagnostics, safety, and human-machine interaction technologies. However, factors like age, health conditions, and external variables affect VPTs.
View Article and Find Full Text PDFBiomimetics (Basel)
December 2024
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
This study develops biomimetic strategies for slip prevention in prosthetic hand grasps. The biomimetic system is driven by a novel slip sensor, followed by slip perception and preventive control. Here, we show that biologically inspired sensorimotor pathways can be restored between the prosthetic hand and users.
View Article and Find Full Text PDFHeliyon
December 2024
Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 121205, Moscow, Russia.
Mental imagery is a crucial cognitive process, yet its underlying neural mechanisms remain less understood compared to perception. Furthermore, within the realm of mental imagery, the somatosensory domain is particularly underexplored compared to other sensory modalities. This study aims to investigate the influence of tactile imagery (TI) on cortical somatosensory processing.
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