Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cardiopulmonary Resuscitation II: ACLS Airway Management01:22

Cardiopulmonary Resuscitation II: ACLS Airway Management

732
Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
732
Anatomical Positions01:11

Anatomical Positions

20.7K
In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
20.7K
Muscles that Move the Head01:19

Muscles that Move the Head

6.2K
The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
6.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A finite element study on the effect of initial head-neck posture on neck injury risk in frontal collisions.

Traffic injury prevention·2026
Same author

Correction: Biomechanically optimized 3D-printed titanium prostheses with stiffener arrangement for critical femoral diaphyseal defects: early weight-bearing capacity and combat readiness validated through integrated biomechanical-FEA approach.

Frontiers in bioengineering and biotechnology·2025
Same author

Biomechanically optimized 3D-Printed titanium prostheses with stiffener arrangement for critical femoral diaphyseal defects: early weight-bearing capacity and combat readiness validated through integrated biomechanical-FEA approach.

Frontiers in bioengineering and biotechnology·2025
Same author

Development and validation of a novel nomogram to predict worsening of gastroesophageal reflux symptoms after laparoscopic sleeve gastrectomy using Lasso-logistic regression.

Scientific reports·2024
Same author

Survival benefit of adjuvant TACE for patients with hepatocellular carcinoma and child-pugh B7 or B8 after hepatectomy.

BMC cancer·2024
Same author

Effect of Structure and Wearing Modes on the Protective Performance of Industrial Safety Helmet.

Journal of biomechanical engineering·2024
Same journal

Incidental Renal Cell Carcinoma in an Active-Duty Fighter Pilot.

Aerospace medicine and human performance·2026
Same journal

Large Language Models as Behavioral Health Teammates in Long-Duration Spaceflight.

Aerospace medicine and human performance·2026
Same journal

Long-Term Post-Bariatric Surgical Outcomes for Aeromedical Certification Consideration.

Aerospace medicine and human performance·2026
Same journal

Middle Ear and Sinus Barotraumas of Military Pilots in Finland.

Aerospace medicine and human performance·2026
Same journal

From Humanitarian Airlifts to Neonatal Intensive Care in the Sky.

Aerospace medicine and human performance·2026
Same journal

Cognitive Performance During Acute Hypoxia Is Associated with Cerebral Oxygenation and Blood Flow.

Aerospace medicine and human performance·2026
See all related articles

Related Experiment Video

Updated: Feb 18, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
07:30

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

Published on: September 21, 2017

9.4K

Initial Head-Neck Posture Affects Neck Injury Risk in Pilot Emergency Ejection.

Cheng-Fei Du, Xiao-Yang Zhang, Hua Zhao

    Aerospace Medicine and Human Performance
    |February 16, 2026
    PubMed
    Summary
    This summary is machine-generated.

    Pilot neck injury risk during emergency ejection is significantly influenced by initial head-neck posture. Axial rotation poses the greatest danger, increasing vertebral stress and ligament tension, underscoring the need for a neutral posture.

    Keywords:
    emergency ejectionfinite elementhead-neck postureneck injury

    More Related Videos

    Modified Drop Tower Impact Tests for American Football Helmets
    07:08

    Modified Drop Tower Impact Tests for American Football Helmets

    Published on: February 19, 2017

    11.5K
    Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
    07:48

    Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

    Published on: April 4, 2025

    1.3K

    Related Experiment Videos

    Last Updated: Feb 18, 2026

    A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
    07:30

    A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact

    Published on: September 21, 2017

    9.4K
    Modified Drop Tower Impact Tests for American Football Helmets
    07:08

    Modified Drop Tower Impact Tests for American Football Helmets

    Published on: February 19, 2017

    11.5K
    Eye Tracking During A Complex Aviation Task For Insights Into Information Processing
    07:48

    Eye Tracking During A Complex Aviation Task For Insights Into Information Processing

    Published on: April 4, 2025

    1.3K

    Area of Science:

    • Aerospace Medicine
    • Biomechanics
    • Human Factors Engineering

    Background:

    • Neck injuries are a common concern during emergency aircraft ejections.
    • Head-neck posture is a critical determinant of injury risk in these scenarios.
    • The specific relationship between initial head-neck posture and ejection-related neck injury requires further investigation.

    Purpose of the Study:

    • To investigate the impact of various initial head-neck postures on the dynamic neck response of pilots during emergency ejection.
    • To quantify the cervical loading and injury risk associated with different head-neck orientations.

    Main Methods:

    • Utilized the Total Human Model for Safety (THUMS) for advanced biomechanical simulations.
    • Simulated four initial non-neutral postures (rotation, flexion, extension, lateral bending) at 15 degrees.
    • Analyzed ejection acceleration curves applied to the T1 vertebra and inferior segments across varying initial rotation angles (0°, 15°, 30°, 45°).

    Main Results:

    • A neutral head-neck posture presented no risk of injury.
    • Non-neutral postures at 15 degrees introduced injury risk, with axial rotation at 15 degrees being particularly concerning.
    • The risk of neck injury demonstrably increased with escalating angles of axial rotation.

    Conclusions:

    • Initial head-neck posture is a significant factor influencing cervical loading and potential injury during pilot ejections.
    • Axial rotation of the head-neck complex presents the highest risk, leading to elevated vertebral stress and ligament tension.
    • Maintaining a neutral head-neck posture is paramount for mitigating cervical spine injury risk in emergency ejection scenarios.