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Investigation of pediatric neck response and muscle activation in low-speed frontal impacts.
Comput Methods Biomech Biomed Engin. 2015; 18(15):1680-92.CM

Abstract

Pediatric necks present different responses and injury patterns compared with those of adults in motor vehicle crashes (MVCs). To evaluate the effect of different muscle modeling methodologies, three muscle models were developed and simulated under low-speed frontal impact conditions with an average peak acceleration of 3g's. The muscle activation curve for the curve-guided model, the muscle segment was curved using guiding nodes, was further optimized based on experimental data. The pediatric neck model was also simulated under more severe frontal impact conditions with an average peak acceleration of 8g's. Simulation results revealed that the curve-guided model needed more muscle force than the straight-guided model, in which the muscle segment was straight with guiding nodes, and the curve-constrained model, in which the muscle segment was curved without guiding nodes and which imposes more constraints on the head and neck than the curve-guided model. The predicted head responses for the child finite element neck model were within or close to the experimental corridors of 3- and 8-g's frontal impacts. The neck injuries for a 10-year-old child commonly occurred at the interspinous ligament in the C7-T1 segment. The model could be used to analyze the responses and injuries of pediatric neck and head in low-speed frontal impacts.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Dong L
a The State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University , Changsha, Hunan 410082 , P.R. China.
Mao H
No affiliation info available
Li G
No affiliation info available
Yang KH
No affiliation info available

MeSH

AccelerationAccidents, TrafficAdultBiomechanical PhenomenaCervical VertebraeChildComputer SimulationFinite Element AnalysisHumansLigamentsModels, BiologicalNeckNeck MusclesReproducibility of Results

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25130495

Citation

Dong, Liqiang, et al. "Investigation of Pediatric Neck Response and Muscle Activation in Low-speed Frontal Impacts." Computer Methods in Biomechanics and Biomedical Engineering, vol. 18, no. 15, 2015, pp. 1680-92.
Dong L, Mao H, Li G, et al. Investigation of pediatric neck response and muscle activation in low-speed frontal impacts. Comput Methods Biomech Biomed Engin. 2015;18(15):1680-92.
Dong, L., Mao, H., Li, G., & Yang, K. H. (2015). Investigation of pediatric neck response and muscle activation in low-speed frontal impacts. Computer Methods in Biomechanics and Biomedical Engineering, 18(15), 1680-92. https://doi.org/10.1080/10255842.2014.946914
Dong L, et al. Investigation of Pediatric Neck Response and Muscle Activation in Low-speed Frontal Impacts. Comput Methods Biomech Biomed Engin. 2015;18(15):1680-92. PubMed PMID: 25130495.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Investigation of pediatric neck response and muscle activation in low-speed frontal impacts. AU - Dong,Liqiang, AU - Mao,Haojie, AU - Li,Guangyao, AU - Yang,King H, Y1 - 2014/08/18/ PY - 2014/8/19/entrez PY - 2014/8/19/pubmed PY - 2015/12/15/medline KW - 10-year-old child KW - activation muscle KW - cervical spine KW - finite element KW - pediatric neck SP - 1680 EP - 92 JF - Computer methods in biomechanics and biomedical engineering JO - Comput Methods Biomech Biomed Engin VL - 18 IS - 15 N2 - Pediatric necks present different responses and injury patterns compared with those of adults in motor vehicle crashes (MVCs). To evaluate the effect of different muscle modeling methodologies, three muscle models were developed and simulated under low-speed frontal impact conditions with an average peak acceleration of 3g's. The muscle activation curve for the curve-guided model, the muscle segment was curved using guiding nodes, was further optimized based on experimental data. The pediatric neck model was also simulated under more severe frontal impact conditions with an average peak acceleration of 8g's. Simulation results revealed that the curve-guided model needed more muscle force than the straight-guided model, in which the muscle segment was straight with guiding nodes, and the curve-constrained model, in which the muscle segment was curved without guiding nodes and which imposes more constraints on the head and neck than the curve-guided model. The predicted head responses for the child finite element neck model were within or close to the experimental corridors of 3- and 8-g's frontal impacts. The neck injuries for a 10-year-old child commonly occurred at the interspinous ligament in the C7-T1 segment. The model could be used to analyze the responses and injuries of pediatric neck and head in low-speed frontal impacts. SN - 1476-8259 UR - https://www.unboundmedicine.com/medline/citation/25130495/Investigation_of_pediatric_neck_response_and_muscle_activation_in_low_speed_frontal_impacts_ DB - PRIME DP - Unbound Medicine ER -