Isokinetic profiling of elite youth footballers: informing selection of a practicable and efficacious isokinetic screening test

Timothy Horn, Chris Brogden, Matt Greig*

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

95 Downloads (Pure)

Abstract

Isokinetic dynamometry represents the clinical gold standard for strength assessment but testing lack consensus. Elite youth male football players (n=28) completed 20 repetitions (analysed as 4 epochs) of eccentric knee flexor (eccKF) and concentric knee extensor (conKE) trials at 60, 180 and 270°∙s-1, quantifying peak torque (PT) and functional range (FR). There was a significant (P < 0.001) main effect for fatigue and angular velocity in conKE PT; eccKF PT was not significant across epoch (P = 0.35) and velocity (P = 0.12) and a velocity x epoch interaction highlighted more repetitions were required to elicit fatigue as velocity increased. FR decreased with fatigue (P < 0.001) and velocity (P < 0.01) in conKE and eccKF, indicative of a narrowing of the strength curve. Clinical interpretation advocates an isokinetic test comprising at least 15 reps at a velocity ≥ 180°∙s-1 and analysis beyond the peak of the strength curve (PT) to inform clinical reasoning and individualised exercise prescription.
Original languageEnglish
Pages (from-to)125-136
Number of pages12
JournalResearch in Sports Medicine
Volume31
Issue number2
Early online date23 Jun 2021
DOIs
Publication statusPublished - 1 Jan 2023

Keywords

  • Isokinetic dynamometry
  • professional football
  • screening
  • youth

Fingerprint

Dive into the research topics of 'Isokinetic profiling of elite youth footballers: informing selection of a practicable and efficacious isokinetic screening test'. Together they form a unique fingerprint.

Cite this