Three-dimensional architecture of the whole human soleus muscle in vivo
Bolsterlee, B., Finni Juutinen, T., D’Souza, A., Eguchi, J., Clarke, E. C., & Herbert, R. D. (2018). Three-dimensional architecture of the whole human soleus muscle in vivo. PeerJ, 6, e4610. doi:10.7717/peerj.4610
© the Authors, 2018. This is an open access article distributed under the terms of the Creative Commons License.
Background Most data on the architecture of the human soleus muscle have been obtained from cadaveric dissection or two-dimensional ultrasound imaging. We present the first comprehensive, quantitative study on the three-dimensional anatomy of the human soleus muscle in vivo using diffusion tensor imaging (DTI) techniques. Methods We report three-dimensional fascicle lengths, pennation angles, fascicle curvatures, physiological cross-sectional areas and volumes in four compartments of the soleus at ankle joint angles of 69 ± 12° (plantarflexion, short muscle length; average ± SD across subjects) and 108 ± 7° (dorsiflexion, long muscle length) of six healthy young adults. Microdissection and three-dimensional digitisation on two cadaveric muscles corroborated the compartmentalised structure of the soleus, and confirmed the validity of DTI-based muscle fascicle reconstructions. Results The posterior compartments of the soleus comprised 80 ± 5% of the total muscle volume (356 ± 58 cm3). At the short muscle length, the average fascicle length, pennation angle and curvature was 37 ± 8 mm, 31 ± 3° and 17 ± 4 /m, respectively. We did not find differences in fascicle lengths between compartments. However, pennation angles were on average 12° larger (p < 0.01) in the posterior compartments than in the anterior compartments. For every centimetre that the muscle-tendon unit lengthened, fascicle lengths increased by 3.7 ± 0.8 mm, pennation angles decreased by −3.2 ± 0.9° and curvatures decreased by −2.7 ± 0.8 /m. Fascicles in the posterior compartments rotated almost twice as much as in the anterior compartments during passive lengthening. Discussion The homogeneity in fascicle lengths and inhomogeneity in pennation angles of the soleus may indicate a functionally different role for the anterior and posterior compartments. The data and techniques presented here demonstrate how DTI can be used to obtain detailed, quantitative measurements of the anatomy of complex skeletal muscles in living humans ...
MetadataShow full item record
- Liikuntatieteiden tiedekunta 
Except where otherwise noted, this item's license is described as © the Authors, 2018. This is an open access article distributed under the terms of the Creative Commons License.
Showing items with similar title or keywords.
Miettinen, Arttu; Chinga-Carrasco, Gary; Kataja, Markku (M D P I AG, 2014)Abstract: Nanofibrillated cellulose (NFC) films have potential as oxygen barriers for, e.g., food packaging applications, but their use is limited by their hygroscopic characteristics. The three-dimensional microstructure ...
Intregrating metallic wiring with three-dimensional polystyrene colloidal crystals using electron-beam lithography and three-dimensional laser lithography Tian, Yaolan; Isotalo, Tero; Konttinen, Mikko P.; Li, Jiawei; Heiskanen, Samuli; Geng, Zhuoran; Maasilta, Ilari (IOP Publishing, 2017)We demonstrate a method to fabricate narrow, down to a few micron wide metallic leads on top of a three-dimensional colloidal crystal self-assembled from polystyrene (PS) nanospheres of diameter 260 nm, using electron-beam ...
Tian, Yolan (University of Jyväskylä, 2016)This thesis focuses on studying phononic crystal structures. More specifically, it is aimed at fabrication and measurement of thermal properties of two-dimensional (2D) periodic microstructures and three-dimensional (3D) ...
In vivo muscle morphology comparison in post-stroke survivors using ultrasonography and diffusion tensor imaging Körting, Clara; Schlippe, Marius; Petersson, Sven; Pennati, Gaia Valentina; Tarassova, Olga; Arndt, Anton; Finni, Taija; Zhao, Kangqiao; Wang, Ruoli (Nature Publishing Group, 2019)Skeletal muscle architecture significantly influences the performance capacity of a muscle. A DTI-based method has been recently considered as a new reference standard to validate measurement of muscle structure in vivo. ...
Physical activity, aerobic fitness, and brain white matter : Their role for executive functions in adolescence Ruotsalainen, Ilona; Gorbach, Tetiana; Perkola, Jaana; Renvall, Ville; Syväoja, Heidi J.; Tammelin, Tuija H.; Karvanen, Juha; Parviainen, Tiina (Elsevier, 2020)Physical activity and exercise beneficially link to brain properties and cognitive functions in older adults, but the findings concerning adolescents remain tentative. During adolescence, the brain undergoes significant ...