Evaluating FlexTail: a wearable device for spinal posture tracking
Arwed Masch, Jonas Walkling, Luca Sander, Thomas M. Deserno
This study quantifies the accuracy of FlexTail, a flexible wearable sensor with printed strain-gauge electronics for real-time three-dimensional spinal motion tracking. Across fixed flexion, torsion, and spine-shaped validation templates, FlexTail delivered reliable measurements with accuracy comparable to clinical systems. Its soft, integrated form factor supports long-term biomechanical analysis and digital health applications.