The interday reliability of ankle, knee, leg, and vertical musculoskeletal stiffness during hopping and overground running

C W Joseph; E J Bradshaw; J Kemp; Ross Clark

doi:10.1123/jab.29.4.386

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The interday reliability of ankle, knee, leg, and vertical musculoskeletal stiffness during hopping and overground running

Journal article

Peer reviewed

The interday reliability of ankle, knee, leg, and vertical musculoskeletal stiffness during hopping and overground running

C W Joseph, E J Bradshaw, J Kemp and Ross Clark

Journal of Applied Biomechanics, Vol.29(4), pp.386-394

2013

DOI: https://doi.org/10.1123/jab.29.4.386

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Abstract

leg spring

joint stiffness

lower extremity

self-selected frequency

kinetic

kinematic

A number of methods are used to measure lower extremity musculoskeletal stiffness, but there is a paucity of research examining the reliability of these techniques. Therefore, we investigated the reliability of vertical, leg, knee, and ankle stiffness during overground running and hopping in 20 active men. Participants were required to run on a 10 m overground runway at 3.83 m/s (actual; 3.35±0.12 m/s) and to hop in place at 2.2 Hz (actual; 2.37±0.03 Hz), and at a self-selected frequency (actual; 2.05±0.12 Hz) and at 2.2 Hz (actual; 2.39±0.04 Hz). Reliability was determined using the intraclass correlation coefficient, coefficient of variation, mean differences, and Cohen's effect sizes. There was good reliability for vertical stiffness, moderate reliability for leg stiffness, and poor reliability for knee and ankle stiffness during the running task. Similar results were observed during the 2.2 Hz hopping tasks, with good reliability displayed for vertical stiffness and poor reliability for ankle and knee stiffness. In conclusion, our results suggest that vertical stiffness is a reliable measure when running at 3.83 m/s and hopping at 2.2 Hz. © 2013 Human Kinetics, Inc.

Details

Title: The interday reliability of ankle, knee, leg, and vertical musculoskeletal stiffness during hopping and overground running
Authors: C W Joseph (Author) - Australian Catholic University
E J Bradshaw (Author) - Australian Catholic University
J Kemp (Author) - Australian Catholic University
Ross Clark (Author) - Australian Catholic University
Publication details: Journal of Applied Biomechanics, Vol.29(4), pp.386-394
Publisher: Human Kinetics
Date published: 2013
DOI: 10.1123/jab.29.4.386
ISSN: 1065-8483
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
Language: English
Record Identifier: 99450605602621
Output Type: Journal article

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