Peak Power Assessment of Isokinetic Knee Flexor and Extensor Tests – Pitfalls of a Dynamometer- based Assessment

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Peak Power Assessment of Isokinetic Knee Flexor and Extensor Tests – Pitfalls of a Dynamometer- based Assessment. / Alt, Tobias; Knicker, Axel; Severin, Jannik; Horn, Dennis; Nodler, Yannick; Strüder, Heiko Klaus.

in: Measurement in Physical Education and Exercise Science, Jahrgang 24, Nr. 2, 01.2020, S. 123-128.

Publikationen: Beitrag in FachzeitschriftZeitschriftenaufsätzeForschungBegutachtung

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@article{0351773b812640ed99d557958bf43e69,
title = "Peak Power Assessment of Isokinetic Knee Flexor and Extensor Tests – Pitfalls of a Dynamometer- based Assessment",
abstract = "Many sports demand high forces at high movement speeds. Joint power combines these two measures and is frequently analyzed by isokinetic tests. However, various concepts of assessing joint power lead to conflicting results. The aim was to examine different methods to calculate peak power during isokinetic knee tests of sixty-one healthy male participants (20 y, 182 cm, 76 kg). Unilateral movements of the eccentrically working hamstrings and the concentrically working quadriceps at 150°/s were captured by high-speed cameras. Peak power derived from isokinetic data was significantly higher (p < 0.01, d > 1.54) compared to the camera-based kinematic procedures. To achieve best accuracy, peak power should be derived from the camera- based joint angular velocity and the measured moment at time of peak power during the dynamometer{\textquoteright}s isokinetic range of motion. A meaningful assessment of isokinetic joint power should incorporate a camera-based kinematic analysis to account for potential measuring inac- curacies owing to anatomical features, axis misalignment, and tissue deformation.",
author = "Tobias Alt and Axel Knicker and Jannik Severin and Dennis Horn and Yannick Nodler and Str{\"u}der, {Heiko Klaus}",
note = "MEASUREMENT IN PHYSICAL EDUCATION AND EXERCISE SCIENCE 2020, VOL. 24, NO. 2, 123–128",
year = "2020",
month = jan,
doi = "https://doi.org/10.1080/1091367X.2020.1716237",
language = "English",
volume = "24",
pages = "123--128",
journal = "Measurement in Physical Education and Exercise Science",
issn = "1532-7841",
publisher = "Routledge",
number = "2",

}

RIS

TY - JOUR

T1 - Peak Power Assessment of Isokinetic Knee Flexor and Extensor Tests – Pitfalls of a Dynamometer- based Assessment

AU - Alt, Tobias

AU - Knicker, Axel

AU - Severin, Jannik

AU - Horn, Dennis

AU - Nodler, Yannick

AU - Strüder, Heiko Klaus

N1 - MEASUREMENT IN PHYSICAL EDUCATION AND EXERCISE SCIENCE 2020, VOL. 24, NO. 2, 123–128

PY - 2020/1

Y1 - 2020/1

N2 - Many sports demand high forces at high movement speeds. Joint power combines these two measures and is frequently analyzed by isokinetic tests. However, various concepts of assessing joint power lead to conflicting results. The aim was to examine different methods to calculate peak power during isokinetic knee tests of sixty-one healthy male participants (20 y, 182 cm, 76 kg). Unilateral movements of the eccentrically working hamstrings and the concentrically working quadriceps at 150°/s were captured by high-speed cameras. Peak power derived from isokinetic data was significantly higher (p < 0.01, d > 1.54) compared to the camera-based kinematic procedures. To achieve best accuracy, peak power should be derived from the camera- based joint angular velocity and the measured moment at time of peak power during the dynamometer’s isokinetic range of motion. A meaningful assessment of isokinetic joint power should incorporate a camera-based kinematic analysis to account for potential measuring inac- curacies owing to anatomical features, axis misalignment, and tissue deformation.

AB - Many sports demand high forces at high movement speeds. Joint power combines these two measures and is frequently analyzed by isokinetic tests. However, various concepts of assessing joint power lead to conflicting results. The aim was to examine different methods to calculate peak power during isokinetic knee tests of sixty-one healthy male participants (20 y, 182 cm, 76 kg). Unilateral movements of the eccentrically working hamstrings and the concentrically working quadriceps at 150°/s were captured by high-speed cameras. Peak power derived from isokinetic data was significantly higher (p < 0.01, d > 1.54) compared to the camera-based kinematic procedures. To achieve best accuracy, peak power should be derived from the camera- based joint angular velocity and the measured moment at time of peak power during the dynamometer’s isokinetic range of motion. A meaningful assessment of isokinetic joint power should incorporate a camera-based kinematic analysis to account for potential measuring inac- curacies owing to anatomical features, axis misalignment, and tissue deformation.

U2 - https://doi.org/10.1080/1091367X.2020.1716237

DO - https://doi.org/10.1080/1091367X.2020.1716237

M3 - Journal articles

VL - 24

SP - 123

EP - 128

JO - Measurement in Physical Education and Exercise Science

JF - Measurement in Physical Education and Exercise Science

SN - 1532-7841

SN - 1091-367X

IS - 2

ER -

ID: 5361235