Measuring clinically relevant knee motion with a self-calibrated wearable sensor.

ABSTRACT: Low-cost sensors provide a unique opportunity to continuously monitor patient progress during rehabilitation; however, these sensors have yet to demonstrate the fidelity and lack the calibration paradigms necessary to be viable tools for clinical research. The purpose of this study was to validate a low-cost wearable sensor that accurately measured peak knee extension during clinical exercises and needed no additional equipment for calibration. Sagittal plane knee motion was quantified using a 9-axis motion sensor and directly compared to motion capture data. The motion sensor measured the field strength of a strong earth magnet secured to the distal femur, which was correlated with knee angle during a simple calibration process. Peak knee motions and kinematic patterns were compared with

SUBMITTER: Hullfish TJ 

PROVIDER: S-EPMC6587970 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature