Presentation
Investigating Sensitivity to Vibrotactile Stimulation in Isometric and Dynamic Tasks: Implications for Ergonomic Intervention
DescriptionWork-related musculoskeletal disorders (WMSDs) and safety hazards are persistent concerns in physically demanding environments such as construction. While traditional ergonomic interventions often rely on visual or auditory feedback, these modalities can be compromised by environmental noise or visual obstructions. Vibrotactile feedback systems offer a promising alternative for both posture correction and real-time hazard awareness. This study evaluated vibrotactile sensitivity and spatial acuity during static and dynamic tasks to guide effective actuator placement. Participants received vibrations on the upper arm, lower back, upper back, and thigh while exerting force or simulating common construction tasks. Findings indicate that the lower back is a poor site for tactile feedback due to low sensitivity and acuity. Stronger vibrations are needed on the thigh during force exertion to ensure detectability, while the upper arm supports high perceptual accuracy, even during dynamic tasks. These insights support anatomically-informed, task-adaptive vibrotactile designs for improving workplace safety and injury prevention.
Event Type
Lecture
TimeThursday, October 16th3pm - 3:20pm CDT
LocationGrand Hall L
Perception and Performance
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