Does the Selected Segment Within a Two-Legged Hopping Trial Alter Leg Stiffness and Kinetic Performance Values and Their Variability?

Ourania Tata, Analina Emmanouil, Karolina Barzouka, Konstantinos Boudolos, Elissavet Rousanoglou

Abstract read

In one paragraph

Article in Methods and protocols, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Ourania TataSport Biomechanics Laboratory, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Daphne, Greece.ORCID 0009-0002-9351-8484

Analina EmmanouilSport Biomechanics Laboratory, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Daphne, Greece.ORCID 0000-0002-9953-9713

Karolina BarzoukaSport Biomechanics Laboratory, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Daphne, Greece.ORCID 0000-0001-5970-4975

Konstantinos BoudolosSport Biomechanics Laboratory, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Daphne, Greece.ORCID 0000-0003-1120-4677

Elissavet RousanoglouSport Biomechanics Laboratory, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, 17237 Daphne, Greece.ORCID 0000-0003-4604-2321

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two-legged hopping is a well-established model for assessing leg stiffness; however, in existing studies, it is unclear whether the trial segment selection affects the results. This study aimed to assess if the selected hopping segment alters the value and individual variability (%CVind) of leg stiffness and kinetic performance metrics. Elite women athletes (42, volleyball, basketball, handball) and 14 non-athletic women performed barefoot two-legged hopping (130 bpm) on a force-plate (Kistler, 9286AA, sampling at 1000 Hz). Leg stiffness was estimated from the Fz registration (resonant frequency method). Four cumulative range segments (1-10, 1-20, 1-30, and 1-40 hops) and three segments of 10-hop subranges (11-20, 21-30, and 31-40) were analyzed (repeated measures one-way Anova,

Indexed as

analysis sub-rangeduty cyclespring-mass model

Identifiers

PMID41441195

DOI10.3390/mps8060152

PMCPMC12736131

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.