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Some Numerical Reflections Upon the Simple Planimetric Muscle Model of Huijing & Woittiez

Some Numerical Reflections Upon the Simple Planimetric Muscle Model of Huijing & Woittiez SOME NUMERICAL REFLECTIONS UPON THE SIMPLE PLANIMETRIC MUSCLE MODEL OF HUIJING & WOITTIEZ by E. OTTEN (Laboratory of Neurophysiology, Department of Oral Biology, University of Groningen, 9712 KZ Groningen, The Netherlands) Recently, Huijing and Woittiez published a paper in this journal dealing with the effects of architecture on skeletal muscle performance. (Neth. J. Zool. 34 (1): 21-32 (1984)). This paper demonstrates that pennate muscles produce more work than parallel fibred muscles, when they have the same volume and fibre length. In this short note I will propose a correction of the model, using the same notation as the authors did. This gives the opportunity to use the figures of the original paper to which I will refer. The authors numbered their for- mulas in brackets; I will use the same brackets () wherever I refer to these formulas and braces {} where I refer to my own formulas. The authors calculated muscle length lm(n) from the measured value of the length of the tendon plate It. the fibre angle at optimal muscle length a(1.0) and a parameter cy. which was the change in distance between the tendon plates and the change in fibre length both relative to the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Netherlands Journal of Zoology (in 2003 continued as Animal Biology) Brill

Some Numerical Reflections Upon the Simple Planimetric Muscle Model of Huijing & Woittiez

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Publisher
Brill
Copyright
© 1984 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2960
eISSN
1568-542X
DOI
10.1163/002829685X00370
Publisher site
See Article on Publisher Site

Abstract

SOME NUMERICAL REFLECTIONS UPON THE SIMPLE PLANIMETRIC MUSCLE MODEL OF HUIJING & WOITTIEZ by E. OTTEN (Laboratory of Neurophysiology, Department of Oral Biology, University of Groningen, 9712 KZ Groningen, The Netherlands) Recently, Huijing and Woittiez published a paper in this journal dealing with the effects of architecture on skeletal muscle performance. (Neth. J. Zool. 34 (1): 21-32 (1984)). This paper demonstrates that pennate muscles produce more work than parallel fibred muscles, when they have the same volume and fibre length. In this short note I will propose a correction of the model, using the same notation as the authors did. This gives the opportunity to use the figures of the original paper to which I will refer. The authors numbered their for- mulas in brackets; I will use the same brackets () wherever I refer to these formulas and braces {} where I refer to my own formulas. The authors calculated muscle length lm(n) from the measured value of the length of the tendon plate It. the fibre angle at optimal muscle length a(1.0) and a parameter cy. which was the change in distance between the tendon plates and the change in fibre length both relative to the

Journal

Netherlands Journal of Zoology (in 2003 continued as Animal Biology) – Brill

Published: Jan 1, 1984

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