Reliability and Validity of a Crane Scale for Isometric Knee and Shoulder Strength Assessment.

ABSTRACT:

Background

Due to cost barriers and/or space constraints, electromechanical and hand-held dynamometry are underutilized in rehabilitation settings. As a result, clinicians often rely on semi-quantitative methods that may fail to detect deficits in upper or lower extremity strength. The purpose of this study was to examine the between-trials test-retest reliability and concurrent criterion validity of an accessible crane scale for measuring isometric knee and shoulder strength.

Study design

Observational cohort, Cross-sectional study.

Methods

Twenty healthy, recreationally active adults underwent isometric knee and shoulder strength testing using a crane scale, electromechanical dynamometer, and hand-held dynamometer during a single session. Knee extension and flexion,

SUBMITTER: Dignazio J 

PROVIDER: S-EPMC11964687 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature