WFRF:(Grip Helena)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03669naa a2200433 4500 | |
| 001 | oai:DiVA.org:umu-182776 | |
| 003 | SwePub | |
| 008 | 210504s2021 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1827762 URI |
| 024 | 7 | a https://doi.org/10.1088/1361-6579/ac325c2 DOI |
| 040 | a (SwePub)umu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Bäcklund, Tomas,d 1958-u Umeå universitet,Radiofysik4 aut0 (Swepub:umu)bato0003 |
| 245 | 1 0 | a Single sensor measurement of heel-height during the push-off phase of gait |
| 264 | c 2021-11-26 | |
| 264 | 1 | b Institute of Physics (IOP),c 2021 |
| 338 | a electronic2 rdacarrier | |
| 500 | a Previously included in thesis in manuscript form. | |
| 520 | a Objective: In healthy gait a forceful push-off is needed to get an efficient leg swing and propulsion, and a high heel lift makes a forceful push-off possible. The power of the push-off is decreased with increased age and in persons with impaired balance and gait. The aim of this study was to evaluate whether a wearable equipment (Striton) and algorithms to estimate vertical heel-height during gait from a single optical distance sensor is reliable and feasible for clinical applications.Approach: To assess heel-height with the Striton system an optical distance sensor was used to measure the distance to the floor along the shank. An algorithm was created to transform this measure to a vertical distance. The heel-height was validated in an experimental setup, against a 3D motion capture system (MCS), and test-retest and day-to-day tests were performed on 10 elderly persons. As a reference material 83 elderly persons were included, and heel-height was measured before and after surgery in four patients with the neurological disorder idiopathic normal pressure hydrocephalus (iNPH).Main results: In the experimental setup the accuracy was high with a maximum error of 2% at all distances, target colours and inclination angles, and the correlation to the MCS was R = 0.94. Test-retest and day-to-day tests were equal within ±1.2 cm. Mean heel-height of the elderly persons was 16.5 ± 0.6 cm and in the patients with iNPH heel-height was increased from 11.2 cm at baseline to 15.3 cm after surgery.Significance: Striton can reliably measure heel-height during gait, with low test-retest and day-to-day variability. The system was easy to attach, and simple to use, which makes it suitable for clinical applications. | |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Medicinteknik0 (SwePub)2062 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Medical Engineering0 (SwePub)2062 hsv//eng |
| 653 | a heel-height | |
| 653 | a optical sensor | |
| 653 | a heel-height variability | |
| 653 | a push-off phase | |
| 653 | a medical informatics | |
| 653 | a medicinsk informatik | |
| 700 | 1 | a Grip, Helenau Umeå universitet,Radiofysik4 aut0 (Swepub:umu)heagrp96 |
| 700 | 1 | a Öhberg, Fredrik,d 1969-u Umeå universitet,Radiofysik4 aut0 (Swepub:umu)froh0003 |
| 700 | 1 | a Sundström, Ninau Umeå universitet,Radiofysik4 aut0 (Swepub:umu)nian0004 |
| 710 | 2 | a Umeå universitetb Radiofysik4 org |
| 773 | 0 | t Physiological Measurementd : Institute of Physics (IOP)g 42:10q 42:10x 0967-3334x 1361-6579 |
| 856 | 4 | u https://doi.org/10.1088/1361-6579/ac325cy Fulltext |
| 856 | 4 | u https://umu.diva-portal.org/smash/get/diva2:1549065/FULLTEXT03.pdfx primaryx Raw objecty fulltext:print |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-182776 |
| 856 | 4 8 | u https://doi.org/10.1088/1361-6579/ac325c |
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