Background: Arm wrestling has been recognized as a popular and potentially dangerous competition. Reports on injuries related to arm wrestling are increasing. The most important of these injuries are humeral shaft fractures. The generally accepted theory states that the shoulder joint is actively internally rotated against the opponent while the elbow is fixed in flexion resulting in enormous violent torque forces across the humeral shaft.
Methods: The reported fracture morphology seems similar so we theorized that the basis of this fracture type is the bone structure. There is no experimental model of the arm wrestling fracture other than a virtual one. We assess morphology of the humeral bone by means of the bone cutting procedures and to verify the theory that the structure of humeral bone is a basis of the arm-wrestling fracture by means of newly developed model on human bones.
Results: Results of the study suggest that the humeral shaft fracture morphology during arm wrestling is based on the spiral structure of the bone combined with the direction of the revolving, rotational force during the match.
Conclusion: The safety rules of the arm-wrestling match based on results of our experimental study and the literature metaanalysis are also formulate.
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Sports (Basel)
November 2024
Department of Martial Arts and Power Sports, National University of Physical Education and Sport, 03150 Kyiv, Ukraine.
Background/objectives: This study aims to investigate the daily variations in upper and lower body power performance in adolescent volleyball players.
Methods: The sample consisted of 50 young male volleyball players (14.12 ± 0.
J Neurosurg Case Lessons
November 2024
Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota.
Background: Snapping triceps is a dynamic condition in which a portion of the medial head of the triceps dislocates over the medial epicondyle during flexion or extension. Pushed by the triceps, the ulnar nerve typically also dislocates over the medial epicondyle, causing neuropathy. Posttraumatic cubitus varus deformities resulting from pediatric supracondylar fractures have been associated with snapping triceps.
View Article and Find Full Text PDFCureus
July 2023
Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, PSE.
Arm wrestling is a popular recreational activity that involves intense and repetitive muscular contractions of the upper extremity. Arm wrestling can result in various musculoskeletal injuries, including bone fractures. Humeral shaft fractures, particularly spiral fractures, are the most common fractures resulting from arm wrestling.
View Article and Find Full Text PDFCell Mol Biol (Noisy-le-grand)
May 2023
Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Üsküdar University, Istanbul, Turkey.
Sport genetics has become increasingly important in recent years. The concept of performance includes genetic and anthropometric factors. These factors have not been adequately examined when the current literature is examined.
View Article and Find Full Text PDFClin Med Res
June 2023
Division of Shoulder and Elbow Surgery, Rothman Orthopaedic Institute, Philadelphia, Pennsylvania, USA.
Humeral fractures in arm wrestling are rarely reported entities in the orthopedic literature and can present with significant pain and debilitation. These injuries are even more uncommon in female practitioners of the sport. Rotational forces applied to the humerus during competition can result in the transmission of stress into the distal part of the humerus, thereby causing a spiral fracture.
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