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Structure of Perturbation-based Balance Training Affects Coordination of Trip Perturbations

Beyerlein, Melina 1; Herzog, Michael ORCID iD icon 1; Stetter, Bernd J. ORCID iD icon 1; Stein, Thorsten 1
1 Institut für Sport und Sportwissenschaft (IfSS), Karlsruher Institut für Technologie (KIT)

Abstract:

Summary
Thirty-two participants performed a perturbation-based balance training (PBT) on a treadmill in blocked or randomized order. Principal component analysis (PCA) on full-body kinematics was used to extract movement components, i.e., kinematic synergies (kSYNs), of trip perturbations during the perturbed swing phase. The relative variance (rVar) of individual kSYNs was analyzed to assess training effects, i.e., quantifying the kSYNs’ contribution to the overall movement. The blocked compared to the random group showed a higher contribution for the knee flexion from swing initiation to the perturbation, highlighting differences in forward foot movement as part of trip preparation. The observed differences in coordination may be attributed to the increased predictability of blocked training schedules.

Introduction
PBT shows tremendous potential for fall prevention by improving reactive recovery mechanisms in response to nonpredictable perturbations [1]. However, while trip perturbations have been shown to cause adaptations in the recovery response, there is only limited transferability to different types of perturbations [1]. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000185802
Veröffentlicht am 15.10.2025
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Sport und Sportwissenschaft (IfSS)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2025
Sprache Englisch
Identifikator KITopen-ID: 1000185802
Erschienen in ISB 2025 - Conference Proceeding: The XXX Congress of the International Society of Biomechanics, Stockholm, 27-31 July 2025
Veranstaltung 30th Congress of International Society of Biomechanics (ISB 2025 2025), Stockholm, Schweden, 27.07.2025 – 31.07.2025
Verlag Academia de Stiinte Agricole si Silvice “Gheorghe Ionescu-Sisesti”, Secția de Horticultură
Seiten Art.-Nr.: 83156
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