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Authors: Sandra Hellmers 1 ; Sebastian Fudickar 1 ; Lena Dasenbrock 1 ; Andrea Heinks 1 ; Jürgen M. Bauer 2 and Andreas Hein 1

Affiliations: 1 Carl von Ossietzky University Oldenburg, Germany ; 2 Heidelberg University and Agaplesion Bethanien Hospital Heidelberg, Germany

ISBN: 978-989-758-213-4

Keyword(s): Force Platform, Counter Movement Jump, Vertical Jump, Balance, Strength, Geriatric Assessment, Jump Landing, DPSI.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Health Information Systems ; Physiological Modeling

Abstract: Counter movement jumps (CMJ) are well-suited to measure the muscle power and balance. Since it has been clarified that well accepted CMJ amplification-based balance measures (such as TTS or CoP) are significantly influenced by algorithmic, and measurement settings and thus, measurement results have limited meaningfulness among force platforms, we introduce a new model-based approach measuring the postural stability. In this, during the landing and recovery phases after vertical jumps, the lower extremities can be represented by an oscillating system and the corresponding transfer function is described by a second-order delay (PT2) element. In an initial prospective study with 20 subjects aged over 70 years, we observed an inverse relationship between the calculated parameter w and the jump height and could also identify an influence of sex, and body weight on the jump height. Furthermore, we also found a relation between the parameter w and the dynamic postural stability index (DPSI), even though these results must be ensured statistically using a larger cohort, due to the current limited number of subjects. Nevertheless, we could confirm the general applicability of the Systems and Control Technology perspective on describing human movements in a potentially more robust manner than current amplification based approaches. Further investigations on our model and the oscillating behavior in the phase of landing are needed to improve our system and to interpret the calculated parameters in a technical and physiological point of view. (More)

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Paper citation in several formats:
Hellmers, S.; Fudickar, S.; Dasenbrock , L.; Heinks, A.; Bauer, J. and Hein, A. (2017). Understanding Jump Landing as an Oscillating System: A Model-based Approach of Balance and Strength Analyses.In Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 5: HEALTHINF, (BIOSTEC 2017) ISBN 978-989-758-213-4, pages 159-168. DOI: 10.5220/0006171101590168

@conference{healthinf17,
author={Sandra Hellmers. and Sebastian Fudickar. and Lena Dasenbrock . and Andrea Heinks. and Jürgen M. Bauer. and Andreas Hein.},
title={Understanding Jump Landing as an Oscillating System: A Model-based Approach of Balance and Strength Analyses},
booktitle={Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 5: HEALTHINF, (BIOSTEC 2017)},
year={2017},
pages={159-168},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006171101590168},
isbn={978-989-758-213-4},
}

TY - CONF

JO - Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 5: HEALTHINF, (BIOSTEC 2017)
TI - Understanding Jump Landing as an Oscillating System: A Model-based Approach of Balance and Strength Analyses
SN - 978-989-758-213-4
AU - Hellmers, S.
AU - Fudickar, S.
AU - Dasenbrock , L.
AU - Heinks, A.
AU - Bauer, J.
AU - Hein, A.
PY - 2017
SP - 159
EP - 168
DO - 10.5220/0006171101590168

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