Quantifying Pathological Synergies in the Upper Extremity of Stroke Subjects With the Use of Inertial Measurement Units: A Pilot Study

Miguel Maiur Claro Bhagubai, Gerjan Wolterink*, Anne Schwarz, Jeremia Philipp Oskar Held, Bernhard J.F. van Beijnum, Petrus H. Veltink

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
112 Downloads (Pure)


Background: Stroke is one of the main causes of disability in the world, causing loss of motor function on mainly one side of the body. A proper assessment of motor function is required to help to direct and evaluate therapy. Assessment is currently performed by therapists using observer-based standardized clinical assessment protocols. Sensor-based technologies can be used to objectively quantify the presence and severity of motor impairments in stroke patients. Methods: In this work, a minimally obstructive distributed inertial sensing system, intended to measure kinematics of the upper extremity, was developed and tested in a pilot study, where 10 chronic stroke subjects performed the arm-related tasks from the Fugl-Meyer Assessment protocol with the affected and non-affected side. Results: The pilot study showed that the developed distributed measurement system was adequately sensitive to show significant differences in stroke subjects’ arm postures between the affected and non-affected side. The presence of pathological synergies can be analysed using the measured joint angles of the upper limb segments, that describe the movement patterns of the subject. Conclusion: Features measured by the system vary from the assessed FMA-UE sub-score showing its potential to provide more detailed clinical information.
Original languageEnglish
Article number2100211
JournalIEEE journal of translational engineering in health and medicine
Publication statusPublished - 7 Dec 2020

Cite this