Effects of active muscle contraction on whiplash injury

Sharma, Nisha Nandlal; Carmai, Julaluk; Koetniyom, Saiprasit; Markert, Bernd

doi:10.1002/pamm.201610041

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…Heavy load of mechanical force frequently acting on tendons can easily cause tendon damage. Understanding the basic anatomical structure and mechanical properties of tendons is helpful to further explore the causes of tendon damage [8][9]. Tendon is an important component of the skeletal muscle system.…”

Section: Tendon Structurementioning

confidence: 99%

Electron Microscopic Observation on Biological Characteristics of Tendon Stem Cells in People with Muscle Collision Injury in Pushing Foul

2021

IJPHPM

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The function of the tendon is to connect bones and muscles, transmit the force generated by muscle contraction to the bones, cause joint activity and body movement, and maintain the stability of the joints. Due to excessive use of body impact in the game, the phenomenon of fouling by teammates, resulting in tendon injury and muscle injury, is a common type of sports injury in sports training and daily life, often causing pain and affecting the body's normal ability to coordinate sports. Or even lead to changes in joint load patterns. Therefore, this article studies the biological characteristics of tendon stem cells in people who have been injured by muscle collision in the foul play. In this study, 30 cases of normal tendon stem cells and 10 cases of tendon stem cells from injured muscles were prepared for cell printing. All specimens were not treated with any anti-tumor treatment before surgery. Fix the sample with 3% formaldehyde solution, rinse with distilled water repeatedly, and dry in a clean space. The samples were dried and placed on the AFM stage, using IX-71 inverted phase contrast microscope to observe the dispersion of cells, select cells for scanning. Select the Tapping mode, adjust the laser to coincide with the tip of the needle, and place the laser spot of the detector on the center dot. Perform automatic frequency modulation in the operating software and adjust the probe until the needle tip touches the sample to start scanning. The experimental data shows that the average size of normal tendon stem cells is 221.11nm*173.88nm, and the average size of tendon stem cells of muscle collision injury is 223.75nm*267.73nm. The experimental results showed that the normal tendon stem cells were fresh under the microscope, and the tendon cells were evenly arranged; while the collagen fibers of the tendon stem cells of the injured muscles were partially lysed, and the tendon cells were disorderly arranged.

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Section: Tendon Structurementioning

confidence: 99%

Electron Microscopic Observation on Biological Characteristics of Tendon Stem Cells in People with Muscle Collision Injury in Pushing Foul

2021

IJPHPM

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“…The FE analysis results were compared to experimental results from volunteers [ 93 ] subjected to rear-end collisions, and it was revealed that the actions of the muscles affected the neck behavior of a driver involved in a rear-end car crash. Sharma et al [ 94 ] used a newly developed active human skeletal muscle FE model to analyze the impacts of active muscle contraction on occupant kinematics under rear-end collision [ 95 ]. Simulations of 4 g rear impacts on the model exhibited that the muscle activation level can mimic the biofidelic behaviour of humans during crash.…”

Section: Applicationsmentioning

confidence: 99%

“…Recently, de Bruijn et al [ 93 ] modeled a detailed finite element model with the muscle response validated to investigate head and neck motion during impacts. An OpenSim head-and-neck model was improved by Cazzola et al [ 94 ] to investigate loading on the cervical spine during rugby, and then, Mortensen et al [ 95 ] also modified OpenSim musculoskeletal models of the neck to study the moment generation and movement capabilities of Hyoid muscles.…”

Section: Applicationsmentioning

confidence: 99%

Application of Simulation Methods in Cervical Spine Dynamics

Sun

Cai

Liu

et al. 2020

Journal of Healthcare Engineering

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Neck injury is one of the most frequent spine injuries due to the complex structure of the cervical spine. The high incidence of neck injuries in collision accidents can bring a heavy economic burden to the society. Therefore, knowing the potential mechanisms of cervical spine injury and dysfunction is significant for improving its prevention and treatment. The research on cervical spine dynamics mainly concerns the fields of automobile safety, aeronautics, and astronautics. Numerical simulation methods are beneficial to better understand the stresses and strains developed in soft tissues with investigators and have been roundly used in cervical biomechanics. In this article, the simulation methods for the development and application of cervical spine dynamic problems in the recent years have been reviewed. The study focused mainly on multibody and finite element models. The structure, material properties, and application fields, especially the whiplash injury, were analyzed in detail. It has been shown that simulation methods have made remarkable progress in the research of cervical dynamic injury mechanisms, and some suggestions on the research of cervical dynamics in the future have been proposed.

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Effects of active muscle contraction on whiplash injury

Abstract: The objective of this work is to develop a finite element model of active human skeletal muscle, which can mimic its contraction behaviour. The model is then used to analyse the effects of active muscle contraction into occupant kinematics and injuries during rear-end collision.

Cited by 2 publications

References 5 publications

Electron Microscopic Observation on Biological Characteristics of Tendon Stem Cells in People with Muscle Collision Injury in Pushing Foul

Electron Microscopic Observation on Biological Characteristics of Tendon Stem Cells in People with Muscle Collision Injury in Pushing Foul

Application of Simulation Methods in Cervical Spine Dynamics

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