Are isokinetic leg torques and kick velocity reliable predictors of competitive level in taekwondo athletes?

PloS One
P. V. S. MoreiraM. Goncalves

Abstract

The aim of this study is to analyze how isokinetic knee and hip peak torques and roundhouse kick velocities are related to expertise level (elite vs. sub-elite) in taekwondo athletes. Seven elite and seven sub-elite athletes were tested for kick-specific variables (KSV, composed of kinematic variables and power of impact) and for concentric isokinetic peak torque (PT) at 60°/s and 240°/s. First, KSVs and PTs were compared between groups, then PTs were correlated with KSVs. Parametric variables with larger effect sizes (Cohen's d) were entered in a stepwise linear discriminant analysis (LDA), generating an equation to estimate competitive level. Between-group differences were found in hip flexors (p = 0.04, d = 0.92) and extensors (p = 0.04, d = 0.96) with PT at 240°/s. Hip flexion PT at 60°/s and 240°/s correlated negatively with kick time (R = -0.46, p = 0.0499 and R = -0.62, p = 0.01 respectively). Hip flexion torque at 60°/s correlated positively (R = 0.52, p = 0.03) with peak linear velocity of the foot (LVF) and power of impact (R = 0.51, p = 0.03). Peak torque of hip extension at 60°/s and hip abduction at 240°/s also correlated with LVF (R = 0.56, p = 0.02 and R = 0.46, p = 0.0499). Hip extension at 60°/s correlated posi...Continue Reading

References

Apr 1, 1992·Sports Medicine·G J Bell, H A Wenger
Dec 1, 1996·Journal of Sports Sciences·H SørensenK Klausen
Feb 28, 2001·Biological Research for Nursing·J M Gaines, L A Talbot
Sep 18, 2002·Journal of Applied Physiology·Per AagaardPoul Dyhre-Poulsen
Oct 16, 2009·Journal of Sport Rehabilitation·Kathleen R LustNathan Wilder
Dec 30, 2009·European Journal of Applied Physiology·Paola SbriccoliFrancesco Felici
Apr 19, 2011·Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine·Shirley S M Fong, Gabriel Y F Ng
Sep 14, 2011·Journal of Strength and Conditioning Research·Isaac EstevanIsabel Castillo
Apr 27, 2012·British Journal of Sports Medicine·Ross Tucker, Malcolm Collins
Oct 24, 2012·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Federico QuinziPaola Sbriccoli
Jul 25, 2013·Journal of Sports Sciences·Isaac EstevanCoral Falco
Oct 1, 2013·Human Movement Science·Federico QuinziValentina Camomilla
Mar 13, 2014·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Sutima Thibordee, Orawan Prasartwuth
Aug 26, 2014·Journal of Strength and Conditioning Research·Cristina MenescardiIsaac Estevan
Sep 7, 2014·European Journal of Applied Physiology·Federico QuinziPaola Sbriccoli
Jun 9, 2016·Biology of Sport·N JonesK A Grimaldi
Jun 15, 2016·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Pedro Vieira Sarmet MoreiraMauro Gonçalves
Mar 2, 2018·European Journal of Sport Science·Pingwei LiJikkemien Vertonghen
Jun 14, 2019·Journal of Chiropractic Medicine·Azza M Abdelmohsen
Jun 21, 2019·Nature Methods·Joses HoAdam Claridge-Chang

❮ Previous
Next ❯

Software Mentioned

Nexus
Plugin Gait Reference Guide
Vicon® Nexus
Vicon®
SPSS
MATLAB
Mathworks®
Noraxon® MR

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.