Journal article
Reliability and Minimum Detectable Change for Common Clinical Physical Function Tests in Sarcopenic Men and Women
Journal of the American Geriatrics Society (JAGS), Vol.65(4), pp.839-846
04/01/2017
DOI: 10.1111/jgs.14769
PMID: 28295148
Abstract
ObjectivesTo determine the test-retest reliability and minimum detectable change scores for seven common clinical measurements of muscle strength and physical function in a multiethnic sample of sarcopenic, malnourished men and women.
DesignEach participant visited the laboratory seven times over 25 to 26 weeks. Reliability was assessed for each measurement from Familiarization 1 to Familiarization 2 (R1), Familiarization 2 to baseline testing (R2), Familiarization 3 to 12-week testing (R3), and Familiarization 4 to 24-week testing (R4).
SettingData were collected during a clinical trial at 23 sites in the United States, Belgium, Italy, Mexico, Poland, Spain, Switzerland, and the United Kingdom.
ParticipantsSarcopenic, malnourished, older adults (N = 257; n = 98 men aged 76.8 6.3, n = 159 women aged 75.9 6.6).
MeasurementsDuring each visit, participants completed the Short Physical Performance Battery (SPBB) and isometric handgrip and isokinetic leg extensor and flexor strength testing at a slow (1.05 rad/s) and fast (3.15 rad/s) velocity.
ResultsHandgrip strength, gait speed, SPPB score, and isokinetic leg extension and flexion peak torque (PT) had intraclass correlation coefficients (ICCs) that were significantly greater than 0 (all 0.59) at R1, R2, R3, and R4, although most of these variables demonstrated systematic increases at R1, and several exhibited systematic variability beyond the baseline testing session.
ConclusionThe ICCs and standard errors of the measurement (SEMs) generally improved with familiarization, which emphasizes the need for at least one familiarization trial for these measurements in sarcopenic, malnourished older adults. A three tier-approach to interpreting the clinical importance of statistically significant results that includes null hypothesis testing, examination and interpretation of the effect magnitude, and comparison of individual changes with the SEM and minimum detectable change of the measurements used is recommended.
Details
- Title: Subtitle
- Reliability and Minimum Detectable Change for Common Clinical Physical Function Tests in Sarcopenic Men and Women
- Creators
- Nathaniel D. M. Jenkins - Oklahoma State UniversityJoel T. Cramer - University of Nebraska–Lincoln
- Resource Type
- Journal article
- Publication Details
- Journal of the American Geriatrics Society (JAGS), Vol.65(4), pp.839-846
- DOI
- 10.1111/jgs.14769
- PMID
- 28295148
- NLM abbreviation
- J Am Geriatr Soc
- ISSN
- 0002-8614
- eISSN
- 1532-5415
- Publisher
- Wiley
- Number of pages
- 8
- Grant note
- Abbott Nutrition; Abbott Laboratories 1009500 / U.S. Department of Agriculture, National Institute of Food and Agriculture Hatch project
- Language
- English
- Date published
- 04/01/2017
- Academic Unit
- Center for Social Science Innovation; Injury Prevention Research Center; Health, Sport, and Human Physiology
- Record Identifier
- 9984259652302771
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