Journal article
Pain-free grip strength in individuals with lateral elbow tendinopathy: Between- and within-session reliability of one versus three trials
Physiotherapy Theory and Practice, Vol.39(5), pp.1007-1015
2023
PMID: 35114892
Abstract
Background
Pain-free grip strength is an important outcome measure in lateral elbow tendinopathy (LET); yet, the reliability and minimum detectable change (MDC) in functional positions are unknown.
Purpose
The purpose of this study is to examine the between- and within-session pain-free grip strength reliability and MDC in LET.
Methods
Twenty-three individuals with LET completed three pain-free grip strength trials with the elbow flexed and extended. The first trial and the mean of three trials were analyzed. Between-session data were collected 2–28 days apart. Within-session data were collected 20–30 min apart.
Results
Between-session intraclass correlation coefficients (ICCs) were good (ICC2,1 = 0.75) for single trials (flexed), excellent (ICC2,1 = 0.89–0.94) for single trials (extended), and excellent for the mean of three trials (both positions). Within-session ICCs were excellent for single (ICC2,1 = 0.89–0.91) and the mean of three trials (ICC2,3 = 0.96–0.98) in both positions. Between-session flexed MDCs were 133 N (single) versus 90 N (mean) and extended MDCs were 118 N (single) versus 92 N (mean). Within-session flexed MDCs were 79 N (single) versus 52 N (mean) and extended MDCs were 125 N (single) versus 46 N (mean).
Conclusions
Using the mean of three trials is recommended, and clinicians can be confident of true change if between-session differences are >92 N and within-session differences are >52 N.
Details
- Title
- Pain-free grip strength in individuals with lateral elbow tendinopathy: Between- and within-session reliability of one versus three trials
- Authors
- Caitlin E Hill - Central Queensland UniversityLuke J Heales - Central Queensland UniversityRobert Stanton - Central Queensland UniversityCrystal O Kean (Corresponding Author) - Central Queensland University
- Publication details
- Physiotherapy Theory and Practice, Vol.39(5), pp.1007-1015
- Publisher
- Taylor & Francis Inc.
- Date published
- 2023
- DOI
- 10.1080/09593985.2022.2030445
- ISSN
- 1532-5040
- PMID
- 35114892
- Organisation Unit
- School of Health - Sports & Exercise Science
- Language
- English
- Record Identifier
- 991047398802621
- Output Type
- Journal article
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