Reliability and Validity of the Medial Standing Overhead Arm Reach (SOAR) Test as a Measure of Functional Hip Adduction Motion

Document Type

Peer-Reviewed Article

Publication Date

2024

Abstract

Objective

The Posterior Standing Overhead Arm Reach (SOAR) test has been previously reported as a reliable clinical measure of closed chain hip extension motion. The proposed Medial SOAR test expands on that testing approach to provide a similar measure of functional hip adduction motion. This was a preliminary intrarater and interrater reliability and validity study of the Medial SOAR test as a measure of functional hip adduction.

Design

Cross-sectional.

Setting

University motion analysis laboratory.

Participants

Fifty hips were assessed in 25 (22 female) asymptomatic participants (mean age = 23.4 years, SD = 0.8).

Main measures

Maximum hip adduction during the Medial SOAR test was measured with a standard goniometer independently by two examiners. The test was also performed using three-dimensional motion capture. The intrarater and interrater reliability of the goniometric measure was determined using intraclass correlation coefficients, and the relationship between measures obtained via goniometry and three-dimensional motion capture was assessed with Pearson correlations and Bland–Altman analysis.

Results

Intrarater reliability (ICC2,3) was 0.88 (95% CI = 0.80–0.92) for Examiner 1 and 0.87 (95% CI = 0.79–0.92) for Examiner 2. The standard error of measurement and minimal detectable change were less than 3.0°. Interrater reliability demonstrated an intraclass correlation coefficient = 0.62 (95% CI = 0.28–0.79). Pearson correlations were significant with low-to-moderate associations (r = 0.49, P < 0.001; r = 0.24, P = 0.045).

Conclusions

Similar to the previously reported Posterior SOAR test, the Medial SOAR test demonstrated acceptable intrarater and interrater reliability, along with low-to-moderate associations with three-dimensional motion capture. The Medial SOAR test has the potential to provide a reliable and accurate assessment of closed chain hip adduction.

Comments

Online before print, March 5, 2024

At the time of publication, Casey DiZinno, Thomas Fogarty, Brendan Rooney, and Taylor Roy were students in the Department of Physical Therapy & Human Movement Science, Sacred Heart University

DOI

10.1177/02692155241236600

Publication

Clinical Rehabilitation

Publisher

Sage Publications

Link to Full Text


Share

COinS