Universität zu Köln

Yang, Peng-Fei, Kriechbaumer, Andreas, Albracht, Kirsten ORCID: 0000-0002-4271-2511, Sanno, Maximilian, Ganse, Bergita ORCID: 0000-0002-9512-2910, Koy, Timmo, Shang, Peng, Brueggemann, Gert-Peter, Mueller, Lars Peter and Rittweger, Jorn ORCID: 0000-0002-2223-8963 (2015). On the relationship between tibia torsional deformation and regional muscle contractions in habitual human exercises in vivo. J. Biomech., 48 (3). S. 456 - 465. OXFORD: ELSEVIER SCI LTD. ISSN 1873-2380

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Abstract

The mechanical relationship between bone and muscle has been long recognized. However, it still remains unclear how muscles exactly load on bone. In this study, utilizing an optical segment tracking technique, the in vivo tibia loading regimes in terms of tibia segment deformation in humans were investigated during walking, forefoot and rear foot stair ascent and running and isometric plantar flexion. Results suggested that the proximal tibia primarily bends to the posterior aspect and twists to the external aspect with respect to the distal tibia. During walking, peak posterior bending and peak torsion occurred in the first half (22%) and second half (76%) of the stance phase, respectively. During stair ascent, two noticeable peaks of torsion were found with forefoot strike (38% and 82% of stance phase), but only one peak of torsion was found with rear foot strike (78% of stance phase). The torsional deformation angle during both stair ascent and running was larger with forefoot strike than rear foot strike. During isometric plantar flexion, the tibia deformation regimes were characterized more by torsion (maximum 135) than bending (maximum 052 degrees). To conclude, bending and torsion predominated the tibia loading regimes during the investigated activities. Tibia torsional deformation is closely related to calf muscle contractions, which further confirm the notion of the muscle-bone mechanical link and shift the focus from loading magnitude to loading regimes in bone mechanobiology. It thus is speculated that torsion is another, yet under-rated factor, besides the compression and tension, to drive long bone mechano-adaptation. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Yang, Peng-Fei UNSPECIFIED UNSPECIFIED UNSPECIFIED Kriechbaumer, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Albracht, Kirsten UNSPECIFIED orcid.org/0000-0002-4271-2511 UNSPECIFIED Sanno, Maximilian UNSPECIFIED UNSPECIFIED UNSPECIFIED Ganse, Bergita UNSPECIFIED orcid.org/0000-0002-9512-2910 UNSPECIFIED Koy, Timmo UNSPECIFIED UNSPECIFIED UNSPECIFIED Shang, Peng UNSPECIFIED UNSPECIFIED UNSPECIFIED Brueggemann, Gert-Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, Lars Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Rittweger, Jorn UNSPECIFIED orcid.org/0000-0002-2223-8963 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-412662
DOI:	10.1016/j.jbiomech.2014.12.031
Journal or Publication Title:	J. Biomech.
Volume:	48
Number:	3
Page Range:	S. 456 - 465
Date:	2015
Publisher:	ELSEVIER SCI LTD
Place of Publication:	OXFORD
ISSN:	1873-2380
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language KNEE-JOINT; BONE; MECHANOTRANSDUCTION; WALKING; SYSTEM; FORCE; GAIT Multiple languages Biophysics; Engineering, Biomedical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41266