1. The different role of each head of the triceps brachii muscle in elbow extension
- Author
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Jae-Myeung Chun, Erica Kholinne, In-Ho Jeon, Rizki Fajar Zulkarnain, Sungjoon Lim, and Yucheng Sun
- Subjects
Adult ,Male ,Shoulder ,medicine.medical_specialty ,Modeling software ,Head (linguistics) ,0206 medical engineering ,Elbow ,02 engineering and technology ,Electromyography ,Kinematics ,Motion ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,lcsh:Orthopedic surgery ,Elbow Joint ,medicine ,Humans ,Orthopedics and Sports Medicine ,Muscle, Skeletal ,Muscle force ,medicine.diagnostic_test ,business.industry ,Triceps brachii muscle ,030229 sport sciences ,General Medicine ,020601 biomedical engineering ,Healthy Volunteers ,Biomechanical Phenomena ,lcsh:RD701-811 ,medicine.anatomical_structure ,Female ,Surgery ,Elbow extension ,business - Abstract
Objective: The aim of this study was to investigate the functional role of each head of the triceps brachii muscle, depending on the angle of shoulder elevation, and to compare each muscle force and activity by using a virtual biomechanical simulator and surface electromyography. Methods: Ten healthy participants (8 males and 2 females) were included in this study. The mean age was 29.2 years (23–45). Each participant performed elbow extension tasks in five different degrees (0, 45, 90, 135, and 180°) of shoulder elevation with three repetitions. Kinematics data and surface electromyography signal of each head of the triceps brachii were recorded. Recorded kinematics data were then applied to an inverse kinematics musculoskeletal modeling software function (OpenSim) to analyze the triceps brachii's muscle force. Correlation between muscle force, muscle activity, elbow extension, and shoulder elevation angle were compared and analyzed for each head of triceps brachii. Results: At 0° shoulder elevation, the long head of the triceps brachii generates a significantly higher muscle force and muscle activation than the lateral and medial heads (p
- Published
- 2018
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