The assessment of spasticity: Pendulum test based smart phone movie of passive markers
Abstract
The pendulum test is the method for quantification of the level of spasticity in persons with spinal cord and brain injuries/diseases. The data for the assessment comes from the analysis of lower leg rotation in the sagittal plane while sitting caused by gravity. We built a simple instrument that uses the smart phone and passive markers for studying the pendulum movement of the leg. We compared the results of the new device with the results acquired with the conventional apparatus which uses a knee joint angle encoder and inertial sensors mounted on the upper and lower leg. The differences of parameters estimated from the test between the two systems are in the range of 5%, which is in the same range as the precision of the positioning of the pendulum apparatus on the leg. The new system is simple for the application (donning, doffing, setup time, accuracy, repeatability) and allows a straightforward interpretation to a clinician. © Serbian Journal of Electrical Engineering. 2018.
Keywords:
image processing / pendulum test / smartphone / spasticity assessmentSource:
Serbian Journal of Electrical Engineering, 2018, 15, 1, 29-39Publisher:
- Kragujevac : University of Kragujevac, Faculty of Science
Funding / projects:
- Research and development of ambient-intelligent service robots with anthropomorphic characteristics (RS-35003)
- Design of Robot as Assistive Technology in Treatement of Children with Developmental Disorders (RS-44008)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Aleksić, Antonina AU - Graovac, Stevica AU - Popović Maneski, Lana AU - Popović, Dejan B. PY - 2018 UR - https://dais.sanu.ac.rs/123456789/3744 AB - The pendulum test is the method for quantification of the level of spasticity in persons with spinal cord and brain injuries/diseases. The data for the assessment comes from the analysis of lower leg rotation in the sagittal plane while sitting caused by gravity. We built a simple instrument that uses the smart phone and passive markers for studying the pendulum movement of the leg. We compared the results of the new device with the results acquired with the conventional apparatus which uses a knee joint angle encoder and inertial sensors mounted on the upper and lower leg. The differences of parameters estimated from the test between the two systems are in the range of 5%, which is in the same range as the precision of the positioning of the pendulum apparatus on the leg. The new system is simple for the application (donning, doffing, setup time, accuracy, repeatability) and allows a straightforward interpretation to a clinician. © Serbian Journal of Electrical Engineering. 2018. PB - Kragujevac : University of Kragujevac, Faculty of Science T2 - Serbian Journal of Electrical Engineering T1 - The assessment of spasticity: Pendulum test based smart phone movie of passive markers SP - 29 EP - 39 VL - 15 IS - 1 DO - 10.2298/SJEE1801029A UR - https://hdl.handle.net/21.15107/rcub_dais_3744 ER -
@article{ author = "Aleksić, Antonina and Graovac, Stevica and Popović Maneski, Lana and Popović, Dejan B.", year = "2018", abstract = "The pendulum test is the method for quantification of the level of spasticity in persons with spinal cord and brain injuries/diseases. The data for the assessment comes from the analysis of lower leg rotation in the sagittal plane while sitting caused by gravity. We built a simple instrument that uses the smart phone and passive markers for studying the pendulum movement of the leg. We compared the results of the new device with the results acquired with the conventional apparatus which uses a knee joint angle encoder and inertial sensors mounted on the upper and lower leg. The differences of parameters estimated from the test between the two systems are in the range of 5%, which is in the same range as the precision of the positioning of the pendulum apparatus on the leg. The new system is simple for the application (donning, doffing, setup time, accuracy, repeatability) and allows a straightforward interpretation to a clinician. © Serbian Journal of Electrical Engineering. 2018.", publisher = "Kragujevac : University of Kragujevac, Faculty of Science", journal = "Serbian Journal of Electrical Engineering", title = "The assessment of spasticity: Pendulum test based smart phone movie of passive markers", pages = "29-39", volume = "15", number = "1", doi = "10.2298/SJEE1801029A", url = "https://hdl.handle.net/21.15107/rcub_dais_3744" }
Aleksić, A., Graovac, S., Popović Maneski, L.,& Popović, D. B.. (2018). The assessment of spasticity: Pendulum test based smart phone movie of passive markers. in Serbian Journal of Electrical Engineering Kragujevac : University of Kragujevac, Faculty of Science., 15(1), 29-39. https://doi.org/10.2298/SJEE1801029A https://hdl.handle.net/21.15107/rcub_dais_3744
Aleksić A, Graovac S, Popović Maneski L, Popović DB. The assessment of spasticity: Pendulum test based smart phone movie of passive markers. in Serbian Journal of Electrical Engineering. 2018;15(1):29-39. doi:10.2298/SJEE1801029A https://hdl.handle.net/21.15107/rcub_dais_3744 .
Aleksić, Antonina, Graovac, Stevica, Popović Maneski, Lana, Popović, Dejan B., "The assessment of spasticity: Pendulum test based smart phone movie of passive markers" in Serbian Journal of Electrical Engineering, 15, no. 1 (2018):29-39, https://doi.org/10.2298/SJEE1801029A ., https://hdl.handle.net/21.15107/rcub_dais_3744 .