Article

MyoAcross: A Generalist Muscle-Driven Control Policy for Musculoskeletal Models Across Individuals

The study proposes the MyoAcross framework, which combines individual musculoskeletal model construction, morphology-conditioned policy learning, and virtual model augmentation to achieve muscle-driven reference-motion tracking without per-individual fine-tuning. Across 31 held-out individual models, it achieved a 99.24% completion rate and reduced tracking error by 22.60% relative to an unconditioned multilayer perceptron. Policy reuse also extended to 22 held-out individual models constructed from single-image shape estimates, height, and body mass, as well as to a model with unilateral lower-limb shortening after asymmetry augmentation.

Part of the event: MyoAcross: A Cross-Individual General Control Strategy for Musculoskeletal Systems

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