Evidence map›Paper›PMID 30789016›Full record

ArticleChronic respiratory disease

Inter-day test-retest reliability and feasibility of isokinetic, isometric, and isotonic measurements to assess quadriceps endurance in people with chronic obstructive pulmonary disease: A multicenter study.

Erik Frykholm, Sarah Géphine, Didier Saey, Hieronymus van Hees, Arthur Lemson, Peter Klijn, François Maltais, André Nyberg

Abstract readMulticenter Study
In one paragraph

Article in Chronic respiratory disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  16. Measuring and monitoring skeletal muscle function in COPD: current perspectives.International journal of chronic obstructive pulmonary disease · 2019
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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

8 authors.

Erik Frykholm1 Department of Community Medicine and Rehabilitation, Unit of Physiotherapy, Umeå University, Umeå, Sweden.ORCID 0000-0002-3212-4708
Sarah Géphine2 Quebec Heart and Lung Institute Research Centre, Faculty of medicine, Laval University, Quebec city, Canada.
Didier Saey2 Quebec Heart and Lung Institute Research Centre, Faculty of medicine, Laval University, Quebec city, Canada.
Hieronymus van Hees3 Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, the Netherlands.
Arthur Lemson3 Department of Pulmonary Diseases, Radboud University Medical Center, Nijmegen, the Netherlands.
Peter Klijn4 Department of Pulmonology, Pulmonary Rehabilitation Centre Merem, Hilversum, the Netherlands.
François Maltais2 Quebec Heart and Lung Institute Research Centre, Faculty of medicine, Laval University, Quebec city, Canada.
André Nyberg1 Department of Community Medicine and Rehabilitation, Unit of Physiotherapy, Umeå University, Umeå, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aims were to determine reliability and feasibility of measurements to assess quadriceps endurance in people with chronic obstructive pulmonary disease. Sixty participants (forced expiratory volume in one second (mean ± standard deviation) 55 ± 18% of predicted, age 67 ± 8 years) were tested in an inter-day, test-retest design. Isokinetic, isometric, and isotonic protocols were performed using a computerized dynamometer. Test-retest relative and absolute reliability was determined via intraclass correlation coefficient (ICC), coefficient of variation (CV%), and limits of agreement (LoA%). Isokinetic total work demonstrated very high relative reliability (ICC: [95% confidence interval] = 0.98 [0.94-0.99]) and the best absolute reliability (CV% (LoA%) = 6.5% (18.0%)). Isokinetic fatigue index, isometric, and isotonic measures demonstrated low-to-high relative reliability (ICC = 0.64 [0.46-0.77], 0.88 [0.76-0.94], 0.91 [0.85-0.94]), and measures of absolute reliability (CV% (LoA%)) were 20.3% (56.4%), 14.9% (40.8%), and 15.8% (43.1%). For isokinetic total work and isometric measurements, participants performed better on retest (4.8% and 10.0%, respectively). The feasibility was similar across protocols with an average time consumption of less than 7.5 minutes. In conclusion, isokinetic, isometric, and isotonic measurements of quadriceps endurance were feasible to a similar extent and presented low-to-very high relative reliability. Absolute reliability seems to favor isokinetic total work measurements.

Indexed as

Muscle ContractionMuscle StrengthMuscle Strength DynamometerPhysical EndurancePulmonary Disease, Chronic ObstructiveAgedDyspneaFeasibility StudiesFemaleHumansMaleMiddle AgedMuscle FatigueOutcome Assessment, Health CareQuadriceps MuscleReproducibility of ResultsCOPDIntra-rater agreementleg extensionlower limb muscle endurancereproducibility

Identifiers

PMID30789016
PMCPMC6302975

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Registered trials

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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.