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Intensive Care Med. 2010 Jun;36(6):1038-43. doi: 10.1007/s00134-010-1796-6. Epub 2010 Mar 6.

Inter-rater reliability of manual muscle strength testing in ICU survivors and simulated patients.

Author information

1
Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, 1830 East Monument Street, 5th Floor, Baltimore, MD 21205, USA. eddy.fan@jhmi.edu

Abstract

OBJECTIVE:

The goal of the paper is to determine inter-rater reliability of trained examiners performing standardized strength assessments using manual muscle testing (MMT).

DESIGN, SUBJECTS, AND SETTING:

The authors report on 19 trainees undergoing quality assurance within a multi-site prospective cohort study.

INTERVENTION:

Inter-rater reliability for specially trained evaluators ("trainees") and a reference rater, performing MMT using both simulated and actual patients recovering from critical illness was evaluated.

MEASUREMENTS AND RESULTS:

Across 26 muscle groups tested by 19 trainee-reference rater pairs, the median (interquartile range) percent agreement and intraclass correlation coefficient (ICC; 95% CI) were: 96% (91, 98%) and 0.98 (0.95, 1.00), respectively. Across all 19 pairs, the ICC (95% CI) for the overall composite MMT score was 0.99 (0.98-1.00). When limited to actual patients, the ICC was 1.00 (95% CI 0.99-1.00). The agreement (kappa; 95% CI) in detecting clinically significant weakness was 0.88 (0.44-1.00).

CONCLUSIONS:

MMT has excellent inter-rater reliability in trained examiners and is a reliable method of comprehensively assessing muscle strength.

PMID:
20213068
PMCID:
PMC2891143
DOI:
10.1007/s00134-010-1796-6
[Indexed for MEDLINE]
Free PMC Article

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