Ricci-flow based conformal mapping of the proximal femur to identify exercise loading effects
Narra, N., Abe, S., Dimitrov, V., Nikander, R., Kouhia, R., Sievänen, H., & Hyttinen, J. (2018). Ricci-flow based conformal mapping of the proximal femur to identify exercise loading effects. Scientific Reports, 8, Article 4823. https://doi.org/10.1038/s41598-018-23248-y
Published in
Scientific ReportsAuthors
Date
2018Discipline
Gerontologia ja kansanterveysGerontologian tutkimuskeskusHyvinvoinnin tutkimuksen yhteisöGerontology and Public HealthGerontology Research CenterSchool of WellbeingCopyright
© the Authors, 2018. This is an open access article distributed under the terms of the Creative Commons License.
The causal relationship between habitual loading and adaptive response in bone morphology is commonly explored by analysing the spatial distribution of mechanically relevant features. In this study, 3D distribution of features in the proximal femur of 91 female athletes (5 exercise loading groups representing habitual loading) is contrasted with 20 controls. A femur specific Ricci-flow based conformal mapping procedure was developed for establishing correspondence among the periosteal surfaces. The procedure leverages the invariance of the conformal mapping method to isometric shape differences to align surfaces in the 2D parametric domain, to produce dense correspondences across an isotopological set of surfaces. This is implemented through a multi-parametrisation approach to detect surface features and to overcome the issue of inconsistency in the anatomical extent present in the data. Subsequently, the group-wise distribution of two mechanically relevant features was studied – cortical thickness and surface principal strains (simulation results of a sideways fall). Statistical inferences over the surfaces were made by contrasting the athlete groups with the controls through statistical parametric mapping. With the aid of group-wise and composite-group maps, proximal femur regions affected by specific loading groups were identified with a high degree of spatial localisation.
...
Publisher
Nature Publishing GroupISSN Search the Publication Forum
2045-2322Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/27964759
Metadata
Show full item recordCollections
- Liikuntatieteiden tiedekunta [3120]
License
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.
Related items
Showing items with similar title or keywords.
-
Acute Effects of High-intensity Resistance Exercise on Cognitive Function
Anders, John Paul V.; Kraemer, William J.; Newton, Robert U.; Post, Emily M.; Caldwell, Lydia K.; Beeler, Matthew K.; DuPont, William H.; Martini, Emily R.; Volek, Jeff S.; Häkkinen, Keijo; Maresh, Carl M.; Hayes, Scott M. (Uludag University, 2021)The purpose of the present study was to examine the influence of an acute bout of high-intensity resistance exercise on measures of cognitive function. Ten men (Mean ± SD: age = 24.4 ± 3.2 yrs; body mass = 85.7 ± 11.8 kg; ... -
Relationships between Heart Rate Variability, Sleep Duration, Cortisol and Physical Training in Young Athletes
Mishica, Christina; Kyröläinen, Heikki; Hynynen, Esa; Nummela, Ari; Holmberg, Hans-Christer; Linnamo, Vesa (Department of Sports Medicine, Medical Faculty of Uludag University, 2021)The aims of the current study were to examine the relationships between heart rate variability (HRV), salivary cortisol, sleep duration and training in young athletes. Eight athletes (16 ± 1 years) were monitored for 7 ... -
The effects of exercising in the cold on energy metabolism, skeletal muscle tissue oxygenation and immuno-endocrine responses
Gagnon, Dominique D. (University of Jyväskylä, 2014) -
Cardiovascular benefits and potential hazards of physical exercise in elderly people
Kallinen, Mauri (University of Jyväskylä, 2004)66–85-vuotiaiden liikunnallisesti aktiivisten naisten suorituskyky sydämen ja verenkiertoelimistön kuntoa mittaavassa kuormituskokeessa oli keskimäärin 40 % parempi kuin vastaavanikäisten harjoittelemattomien naisten. ... -
Changes in femoral neck bone mineral density and structural strength during a 12-month multicomponent exercise intervention among older adults : Does accelerometer-measured physical activity matter?
Savikangas, T.; Suominen, T. H.; Alén, M.; Rantalainen, T.; Sipilä, S. (Elsevier, 2024)Age-related bone loss is to some extent unavoidable, but it may be decelerated with regular exercise continued into older age. Daily physical activity alongside structured exercise may be an important stimulus for maintaining ...