20.500.12556/RUL-131084 A novel approach to measuring muscle mechanics in vehicle collision conditions The aim of the study was to evaluate a novel approach to measuring neck muscle load and activity in vehicle collision conditions. A series of sled tests were performed on 10 healthy volunteers at three severity levels to simulate low-severity frontal impacts. Electrical activity-electromyography (EMG)-and muscle mechanical tension was measured bilaterally on the upper trapezius. A novel mechanical contraction (MC) sensor was used to measure the tension on the muscle surface. The neck extensor loads were estimated based on the inverse dynamics approach. The results showed strong linear correlation (Pearson's coefficient $\overline{r}_P$ = 0.821) between the estimated neck muscle load and the muscle tension measured with the MC sensor. The peak of the estimated neck muscle force delayed 0.2 ± 30.6 ms on average vs. the peak MC sensor signal compared to the average delay of 61.8 ± 37.4 ms vs. the peak EMG signal. The observed differences in EMG and MC sensor collected signals indicate that the MC sensor offers an additional insight into the analysis of the neck muscle load and activity in impact conditions. This approach enables a more detailed assessment of the muscle-tendon complex load of a vehicle occupant in pre-impact and impact conditions. biomechanics vehicle occupant impact in vivo muscle activity active muscle biomehanika vozila potniki trk prometne nesreče mišična aktivnost true false true Angleški jezik Slovenski jezik Članek v reviji 2021-09-22 12:15:23 2021-09-22 12:15:25 2025-05-28 06:23:42 0000-00-00 00:00:00 2017 0 0 17 str. iss. 6, art. 1389 Vol. 17 2017 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 [591.473:614.8]:656.1(045) 1424-8220 10.3390/s17061389 15539483 RAZ_Krasna_Simon_2017.pdf RAZ_Krasna_Simon_2017.pdf 1 2E043BC9F5AD35B61F217B2CD403157C eec5ee0d009711d13fcd45b37e68fe0ce16caf983ddcae4bb6e69ac605895cb1 0aad11c1-1b8e-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=148332 http://www.mdpi.com/1424-8220/17/6/1389 1 bc2de0e3-1b8d-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=148331 Fakulteta za strojništvo Medicinska fakulteta 0 0 0