Madhu Mohan, R.Kattimani, S.Koorata, P.K.Girisha, C.2026-02-032025Prosthetics and Orthotics International, 2025, 49, 2, pp. 214-2193093646https://doi.org/10.1097/PXR.0000000000000398https://idr.nitk.ac.in/handle/123456789/20351Testing is one of the most significant phases of any engineering process, the last process followed by conceptualization, designing, and fabricating. If the testing outcomes are not genealogy sensible measurables, then eventually it calls for a redesign overhaul. Existing testing equipment to analyze the load and failures are conventional digital universal testing machines with minimum jigs and fixtures. In addition, the existing fixtures cannot be adapted to the anatomy of a human finger. Consequently, the present work explores the best possible design of a jig for testing the naturally articulated movement of a human finger (prosthetic wear-on). Furthermore, the present jig design checks a wide range of parameters such as freedom of motion, a path along with curvature, load, failures, and intermittent positions of applied load, which is adaptable to existing universal testing machines available for broader applications. © 2024 International Society for Prosthetics and Orthotics.anatomyArticlebody weightbone strengthfinger flexiongrip strengthhumanmusculoskeletal functionphalanx strengthpinch strengthprosthetic finger distal interphalangeal strengthproximal interphalangeal jointthree dimensional printingdevicesfingerfinger jointfinger phalanxmaterials testingphysiologyprosthesis designFinger JointFinger PhalangesFingersHumansMaterials TestingProsthesis Design