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Statements

Subject Item
n2:RIV%2F00216208%3A11510%2F14%3A10288846%21RIV15-MSM-11510___
rdf:type
n6:Vysledek skos:Concept
rdfs:seeAlso
http://www.nel.edu/archive_issues/o/35_4/35_4_Fanta_290-296.pdf
dcterms:description
OBJECTIVE: For the evaluation of neck injury the relative distance was observed between a marker placed on the forehead and a marker placed on the shoulder and also by change of the angle. To compare the severity of head injury a value of maximum head acceleration was used, HIC and a 3 ms criterion. All criteria were related to the activity of musculus sternocleidomastoideus and musculus trapezius in a situation of expected or unexpected contact impact. MATERIALS AND METHODS: The situation was recorded using a Qualisys system, head acceleration of probands in three axes was recorded using the accelerometer, activity of neck muscles was monitored by a mobile EMG. RESULTS: Maximum head acceleration was 5.61 g for non-visual and 5.03 g for visual. HIC36 was 6.65 non visual and 5.97 for visual. 3-ms criterion was 5.37 g for non-visual and 4.89 g for visual and max. force was 291 N for non-visual and 314 N for visual. The average time of muscle activation of the observed group without visual perception is 0.355 s after hitting an obstacle, with visual perception 0.085 s before the crash. CONCLUSIONS: Kinematic values indicate more favourable parameters for neck injuries for visual. Head injury criteria show an average decrease of about 10% for visual. We can conclude that the visual perception means a significant increase in pre-activation of the observed muscle group of almost 745% and lower activation in following phase of approximately 90%. OBJECTIVE: For the evaluation of neck injury the relative distance was observed between a marker placed on the forehead and a marker placed on the shoulder and also by change of the angle. To compare the severity of head injury a value of maximum head acceleration was used, HIC and a 3 ms criterion. All criteria were related to the activity of musculus sternocleidomastoideus and musculus trapezius in a situation of expected or unexpected contact impact. MATERIALS AND METHODS: The situation was recorded using a Qualisys system, head acceleration of probands in three axes was recorded using the accelerometer, activity of neck muscles was monitored by a mobile EMG. RESULTS: Maximum head acceleration was 5.61 g for non-visual and 5.03 g for visual. HIC36 was 6.65 non visual and 5.97 for visual. 3-ms criterion was 5.37 g for non-visual and 4.89 g for visual and max. force was 291 N for non-visual and 314 N for visual. The average time of muscle activation of the observed group without visual perception is 0.355 s after hitting an obstacle, with visual perception 0.085 s before the crash. CONCLUSIONS: Kinematic values indicate more favourable parameters for neck injuries for visual. Head injury criteria show an average decrease of about 10% for visual. We can conclude that the visual perception means a significant increase in pre-activation of the observed muscle group of almost 745% and lower activation in following phase of approximately 90%.
dcterms:title
Kinematic and dynamic biomechanical values in relation to muscle activity during contact head impact Kinematic and dynamic biomechanical values in relation to muscle activity during contact head impact
skos:prefLabel
Kinematic and dynamic biomechanical values in relation to muscle activity during contact head impact Kinematic and dynamic biomechanical values in relation to muscle activity during contact head impact
skos:notation
RIV/00216208:11510/14:10288846!RIV15-MSM-11510___
n4:aktivita
n16:S n16:P n16:I
n4:aktivity
I, P(GAP407/10/1624), S
n4:cisloPeriodika
4
n4:dodaniDat
n14:2015
n4:domaciTvurceVysledku
n8:5011779 n8:9799508 n8:6813526 n8:9268170 n8:9794670
n4:druhVysledku
n18:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n17:predkladatel
n4:idSjednocenehoVysledku
24229
n4:idVysledku
RIV/00216208:11510/14:10288846
n4:jazykVysledku
n11:eng
n4:klicovaSlova
impact.; head; contact; during; activity; muscle; relation; values; biomechanical; dynamic; Kinematic
n4:klicoveSlovo
n7:head n7:values n7:muscle n7:biomechanical n7:Kinematic n7:contact n7:dynamic n7:relation n7:impact. n7:during n7:activity
n4:kodStatuVydavatele
SE - Švédské království
n4:kontrolniKodProRIV
[4F46A26119D0]
n4:nazevZdroje
Neuroendocrinology Letters
n4:obor
n13:FI
n4:pocetDomacichTvurcuVysledku
5
n4:pocetTvurcuVysledku
6
n4:projekt
n19:GAP407%2F10%2F1624
n4:rokUplatneniVysledku
n14:2014
n4:svazekPeriodika
35
n4:tvurceVysledku
Kubový, Petr Hadraba, Daniel Fanta, Ondřej Jelen, Karel Bouček, Jan Billich, Richard
n4:wos
000349383000009
s:issn
0172-780X
s:numberOfPages
7
n9:organizacniJednotka
11510