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Title: Properties of the two neuromuscular compartments in a split bipennate muscle
Authors: Pereira, B.P. 
Prem, Kumar V. 
Tan, J.A.C.
Tan, B.-L.
Lim, A.Y.T.
Keywords: Isometric forces
Muscle architecture
Muscle forms
Neuromuscular compartments
Split muscle transfer
Issue Date: 2004
Citation: Pereira, B.P., Prem, Kumar V., Tan, J.A.C., Tan, B.-L., Lim, A.Y.T. (2004). Properties of the two neuromuscular compartments in a split bipennate muscle. Journal of Orthopaedic Research 22 (6) : 1325-1330. ScholarBank@NUS Repository.
Abstract: Bipennate muscles may be split along their distal aponeurosis, dividing each into two compartments. These sub-muscle units may be used in tendon transfers. This paper presents the contractile properties of the two sub-units of the flexor carpi ulnaris in a macaca fascicularis, after it was split by up to 80% of its length. The sub-muscle units were electrically stimulated and found to have independent isometric contraction, with minimal contraction recorded from the non-stimulated sub-unit. Also, the sum of the forces measured from each unit when stimulated individually, was found to be greater than the force of the whole muscle, given the same isometric conditions. The distal aponeurosis which is common allows force transmission between the compartments. Splitting the muscle along this distal aponeurosis alters this function and the force capacity of the muscle, providing a new potential for using the sub-units as grafts for tendon transfers. © 2004 Orthopaedic Research Society. Published by Elsevier Ltd. All rights reserved.
Source Title: Journal of Orthopaedic Research
ISSN: 07360266
DOI: 10.1016/j.orthres.2004.04.008
Appears in Collections:Staff Publications

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