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Updated: Aug 3, 2026

Kinematic Analysis Using 3D Motion Capture of Drinking Task in People With and Without Upper-extremity Impairments
Published on: March 28, 2018
A novel approach to forensic investigation: three-dimensional kinematic and kinetic motion analysis
P T O'Callaghan1, M D Jones, C A Holt
1Department of Physiology, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
Insights
Forensic biomechanics investigated a child
Area of Science:
- Forensic science
- Biomechanics
- Pediatric trauma
Background:
- A five-year-old child died following a domestic incident.
- Autopsy revealed peritonitis due to duodenal rupture as the cause of death.
- The suspect claimed the injury resulted from a game involving standing on the child.
Purpose of the Study:
- To investigate the feasibility of the suspect's account.
- To reconstruct the alleged game using biomechanical analysis.
- To determine if the described actions could cause the fatal injury.
Main Methods:
- Utilized 3-dimensional kinematic analysis.
- Employed kinetic motion analysis for reconstruction.
- Applied biomechanical principles to assess injury causation.
Main Results:
- The study reconstructed the alleged game scenario.
- Analysis focused on the forces and movements involved.
- Feasibility of the described game causing duodenal rupture was assessed.
Conclusions:
- The investigation aimed to correlate the alleged actions with the autopsy findings.
- Findings contribute to understanding injury mechanisms in child abuse cases.
- Biomechanical analysis provides objective data in forensic investigations.
Abstract:
Following a domestic incident, a five-year-old child was pronounced dead on arrival at hospital. The subsequent post-mortem examination found that the cause of death was peritonitis as a result of a rupture of the duodenum. During the police interview, the main suspect alleged that the injury occurred whilst playing a game which involved standing on the child's abdomen and chest. A reconstruction of the game was performed using 3-dimensional kinematic and kinetic motion analysis to investigate the feasibility of the statement as described by the defendant. Presented is a summary of the investigation together with a description of kinematic and kinetic methods employed.
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