Evidence map›Paper›PMID 20617909›Full record

Trial reportJournal of athletic training

The reliability of portable fixed dynamometry during hip and knee strength assessments.

Roger O Kollock, James A Onate, Bonnie Van Lunen

Open access · bronzeAbstract readClinical TrialValidation Study
In one paragraph

Trial report in Journal of athletic training. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.5field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 72 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Roger O KollockOld Dominion University, Norfolk, VA, USA.
James A Onate
Bonnie Van Lunen
Old Dominion University · USThe Ohio State University · US

Funding

Lower Extremity Assessment Program for Collegiate Athletes: NCAA LEAPR03AR054031 · NIAMS · OLD DOMINION UNIVERSITY · PI ONATE, JAMES ARTHUR · 2006 to 2007
$140k
NIAMS NIH HHS R03 AR054031
6 · The paper itself

Abstract

contextInsufficient lower extremity strength may be a risk factor for lower extremity injuries such as noncontact anterior cruciate ligament tears. Therefore, clinicians need reliable instruments to assess strength deficiencies.

objectiveTo assess the intrarater, interrater, intrasession, and intersession reliability of a portable fixed dynamometer in measuring the strength of the hip and knee musculature.

designCrossover study.

settingSports medicine research laboratory. PATIENTS OR OTHER

participantsThree raters (A, B, C) participated in this 2-phase study. Raters A and B tested 11 healthy college graduate students (2 men, 9 women) in phase 1. Raters A and C tested 26 healthy college undergraduate students (7 men, 19 women) in phase 2. MAIN OUTCOME MEASURE(S): The dependent variables for the study were hip adductor, hip abductor, hip flexor, hip extensor, hip internal rotator, hip external rotator, knee flexor, and knee extensor peak force.

resultsThe phase 1 intrasession intraclass correlation coefficients for sessions 1, 2, and 3 ranged from 0.88 to 0.99 (SEM = 0.08-3.02 N), 0.85 to 0.99 (SEM = 0.26-3.88 N), and 0.92 to 0.96 (SEM = 0.52-2.76 N), respectively. Intraclass correlation coefficients ranged from 0.57 to 0.95 (SEM = 1.72-13.15 N) for phase 1 intersession values, 0.70 to 0.94 (SEM = 1.42-9.20 N) for phase 2 intrarater reliability values, and 0.69 to 0.88 (SEM = 1.20-8.50 N) for phase 2 interrater values.

conclusionsThe portable fixed dynamometer showed good to high intrasession and intersession reliability values for hip and knee strength. Intrarater and interrater reliability were fair to high, except for hip internal rotation, which showed poor reliability.

Indexed as

Muscle Strength DynamometerAdultCross-Over StudiesFemaleHealth StatusHip JointHumansIsometric ContractionKnee JointMaleMuscle, SkeletalReproducibility of ResultsRisk FactorsStatistics as TopicYoung Adult

Identifiers

PMID20617909
PMCPMC2902028
OpenAlexW2116074096

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.