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In-vivo Measurement of Wrist Movements During the Dart-Throwing Motion Using Inertial Measurement Units

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Background: This study investigates the dart-throwing motion (DTM) by comparing an inertial measurement unit-based system previously validated for basic motion tasks with an optoelectronic motion capture system. The DTM is interesting as wrist movement during many activities of daily living occur in this movement plane, but the complex movement is difficult to assess clinically. Methods: Ten healthy subjects were recorded while performing the DTM with their right wrist using inertial sensors and skin markers. Maximum range of motion obtained by the different systems and the mean absolute difference were calculated. Results: In the flexion-extension plane, both systems calculated a range of motion of 100◦ with mean absolute differences of 8◦ , while in the radial-ulnar deviation plane, a mean absolute difference of 17◦ and range of motion values of 48◦ for the optoelectronic system and 59◦ for the inertial measurement units were found. Conclusions: This study shows the challenge of comparing results of different kinematic motion capture systems for complex movements while also highlighting inertial measurement units as promising for future clinical application in dynamic and coupled wrist movements. Possible sources of error and solutions are discussed

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cc-by (c) Fischer, Gabriella et al., 2021

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Articles publicats en revistes (Matemàtiques i Informàtica)

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In-vivo Measurement of Wrist Movements During the Dart-Throwing Motion Using Inertial Measurement Units