TibetCPR uses tactile feedback to train CPR in high-altitude regions

TibetCPR addresses the challenge of CPR training in the Tibet Autonomous Region, where instructor-led education is fragmented and learners have diverse linguistic and educational backgrounds. The system pairs a low-cost depth sensor with electrotactile feedback—a small electrical stimulus on the skin that indicates correct compression depth—and rhythm-driven visual cues, all embedded within a Tibetan-language narrative. Unlike conventional CPR manikins that require a human trainer or expensive sensors, TibetCPR is designed for autonomous, self-guided use.

In a randomized study with 40 lay community members aged 19–56, the experimental group using TibetCPR showed progressive minute-by-minute stabilization of both compression rhythm and depth across a 10-minute intervention, substantially outperforming a control group that practiced without feedback. Qualitative accounts described the feedback as “legible through bodily action,” and the system achieved a System Usability Scale (SUS) score of 84.3, indicating excellent usability. The researchers also derived three design principles for self-guided embodied training: feedback as a calibration reference rather than an immediate corrector, matching modality temporal granularity to the behavior’s temporal structure, and ensuring autonomous interpretability as a deployment prerequisite.