20.500.12556/RUL-131636 Using inertial measurement units and electromyography to quantify movement during action research arm test execution In patients after stroke, ability of the upper limb is commonly assessed with standardised clinical tests that provide a complete upper limb assessment. This paper presents quantification of upper limb movement during the execution of Action research arm test (ARAT) using a wearable system of inertial measurement units (IMU) for kinematic quantification and electromyography (EMG) sensors for muscle activity analysis. The test was executed with each arm by a group of healthy subjects and a group of patients after stroke allocated into subgroups based on their clinical scores. Tasks were segmented into movement and manipulation phases. Each movement phase was quantified with a set of five parameters: movement time, movement smoothness, hand trajectory similarity, trunk stability, and muscle activity for grasping. Parameters vary between subject groups, between tasks, and between task phases. Statistically significant differences were observed between patient groups that obtained different clinical scores, between healthy subjects and patients, and between the unaffected and the affected arm unless the affected arm shows normal performance. Movement quantification enables differentiation between different subject groups within movement phases as well as for the complete task. Spearman’s rank correlation coefficient shows strong correlations between patient’s ARAT scores and movement time as well as movement smoothness. Weak to moderate correlations were observed for parameters that describe hand trajectory similarity and trunk stability. Muscle activity correlates well with grasping activity and the level of grasping force in all groups. stroke upper-limb movement quantification ARAT inertial measurement unit electromyography true false true Angleški jezik Ni določen Članek v reviji 2021-09-30 13:21:34 2021-09-30 13:21:35 2022-09-10 04:12:53 0000-00-00 00:00:00 2018 0 0 23 str. iss. 9, art. 2767 Vol. 18 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 616.831-005.1:616.74-073.7 1424-8220 10.3390/s18092767 5469803 RAZ_Cebasek_Eva_2018.pdf RAZ_Cebasek_Eva_2018.pdf 1 85D2453647FB38507A8D2BB7526DAAF5 8070f8bb7248f4f89b4ee5e712c0705ebfd981b67c56d5958ee5a0ca920a6019 37dab5c5-21e1-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149015 http://www.mdpi.com/1424-8220/18/9/2767 1 4a074e18-21e0-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149014 Fakulteta za elektrotehniko Zdravstvena fakulteta 0 0 0