Evidence map›Paper›PMID 19777253›Full record

ArticleEuropean journal of applied physiology2010

Leg dominancy in relation to fast isometric torque production and squat jump height.

Cornelis Jo de Ruiter, Alex de Korte, Sander Schreven, Arnold de Haan

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Article in European journal of applied physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

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0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

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  6. Single-step test for unilateral limb ability following total knee arthroplasty.The Journal of orthopaedic and sports physical therapy · 2013
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Cornelis Jo de RuiterResearch Institute MOVE, FBW, VU University Amsterdam, Van der Boechorststraat 9, 1081 BT, Amsterdam, The Netherlands. C_J_de_Ruiter@FBW.VU.NL
Alex de Korte
Sander Schreven
Arnold de Haan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We hypothesized that maximal unilateral isometric knee extensor torque, the rate of torque development during maximally fast isometric contractions and unilateral squat jump performance would be better with the dominant than non-dominant leg. Limb dominancy was established using the step up, balance recovery, and ball kick test. On two days, eight men (21.5 +/- 2.2 years, means +/- SD) performed unilateral maximal isometric contractions with their knee extensors (120 degrees knee angle) with superimposed electrical stimulation to determine maximal torque and voluntary activation for both limbs. In addition, maximally fast isometric contractions without countermovement and unilateral squat jumps (SJ) starting from 120 degrees knee angles were performed. Torque time integral (contractile impulse) over the first 40 ms after torque onset (TTI40) and maximal rates of torque development (MRTD) during voluntary and maximal electrical nerve stimulation were used to quantify initial torque rise. Limb dominancy tests were very consistent, but none of the parameters was (or tended to be) significantly different between limbs, neither during maximal electrical stimulation nor during voluntary attempts. Between limbs there were significant relationships for voluntary TTI40 (r (2) = 0.94) and maximal SJ height (r (2) = 0.88) and both parameters were significantly related in both limbs (r (2) = 0.69 and 0.75). In conclusion, unilateral fast torque generating capacity, muscle activation and squat jump performance were similar in both limbs, but differed substantially among subjects, with strong correlations between fast voluntary isometric torque development and jump height. These findings further challenge the concept of lower limb dominancy in dynamometry testing in sports and rehabilitation.

Indexed as

AdultElectromyographyHumansIsometric ContractionKnee JointLower ExtremityMaleMuscle, SkeletalTask Performance and AnalysisTorque

Identifiers

PMID19777253
PMCPMC2799630

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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.