Policy Learning for Social Robot-Led Physiotherapy

• URL: http://arxiv.org/abs/2509.11297v1
• Date: Sun, 14 Sep 2025 14:40:30 GMT
• Title: Policy Learning for Social Robot-Led Physiotherapy
• Authors: Carl Bettosi, Lynne Ballie, Susan Shenkin, Marta Romeo,
• Abstract summary: Social robots offer a promising solution for autonomously guiding patients through physiotherapy exercise sessions.<n>Key challenge is the scarcity of patient behavior data for developing robust policies.<n>We engaged 33 expert healthcare practitioners as patient proxies, using their interactions with our robot to inform a patient behavior model.
• Score: 0.9666308705700454
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Social robots offer a promising solution for autonomously guiding patients through physiotherapy exercise sessions, but effective deployment requires advanced decision-making to adapt to patient needs. A key challenge is the scarcity of patient behavior data for developing robust policies. To address this, we engaged 33 expert healthcare practitioners as patient proxies, using their interactions with our robot to inform a patient behavior model capable of generating exercise performance metrics and subjective scores on perceived exertion. We trained a reinforcement learning-based policy in simulation, demonstrating that it can adapt exercise instructions to individual exertion tolerances and fluctuating performance, while also being applicable to patients at different recovery stages with varying exercise plans.

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