Biomechanical quantification of deadbug bridging performance in competitive alpine skiers: Reliability, reference values, and associations with skiing performance and back overuse complaints
dc.contributor.author
Ellenberger, Lynn
dc.contributor.author
Jermann, Julia
dc.contributor.author
Fröhlich, Stefan
dc.contributor.author
Frey, Walter O.
dc.contributor.author
Snedeker, Jess Gerrit
dc.contributor.author
Spörri, Jörg
dc.date.accessioned
2020-07-10T08:01:04Z
dc.date.available
2020-07-09T05:26:24Z
dc.date.available
2020-07-10T08:01:04Z
dc.date.issued
2020-09
dc.identifier.issn
1466-853X
dc.identifier.other
10.1016/j.ptsp.2020.05.013
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/425391
dc.identifier.doi
10.3929/ethz-b-000425391
dc.description.abstract
Objectives
(1) To study the reliability of quantifying rear-chain stabilization capacity during deadbug bridging (DBB), (2) to provide reference values for competitive alpine skiers, and (3) to study associations with age, anthropometrics, maturation, skiing performance and back overuse complaints.
Design
Cross-sectional.
Setting
Biomechanical field experiment including questionnaires.
Participants
12 healthy subjects (reliability experiment); 133 skiers of the U16 category and 38 of the elite category (main experiment).
Main outcome measures
DBB performance was quantified using 3D motion capture as the maximum amplitude of the relative vertical displacement of two pelvis markers (DBBdisplacement). Additionally, in U16 skiers, age, anthropometrics, maturation, skiing performance, and back overuse complaints were assessed.
Results
The reliability experiment revealed an ICC(3,1) and 95% CI of 0.81 [0.61, 0.93]. Within-subject SEM was 3.89 mm [3.16 mm, 5.12 mm]. Depending on sex and category, medians of DBBdisplacement in skiers ranged between 29 mm and 45 mm. DBBdisplacement differed between elite and U16 skiers (p < 0.001), but not between sexes. In U16 skiers, DBBdisplacement was independent of age, anthropometrics, and biological maturation, however, associated with skiing performance and back overuse complaints (p < 0.05).
Conclusion
The proposed approach may be considered an adequate method to quantify athletes’ rear-chain stabilization capacity.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.title
Biomechanical quantification of deadbug bridging performance in competitive alpine skiers: Reliability, reference values, and associations with skiing performance and back overuse complaints
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2020-07-01
ethz.journal.title
Physical Therapy in Sport
ethz.journal.volume
45
en_US
ethz.pages.start
56
en_US
ethz.pages.end
62
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02518 - Institut für Biomechanik / Institute for Biomechanics::03822 - Snedeker, Jess G. / Snedeker, Jess G.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02518 - Institut für Biomechanik / Institute for Biomechanics::03822 - Snedeker, Jess G. / Snedeker, Jess G.
ethz.date.deposited
2020-07-09T05:26:28Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-07-10T08:01:16Z
ethz.rosetta.lastUpdated
2022-03-29T02:37:33Z
ethz.rosetta.versionExported
true
ethz.COinS
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