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Concurrent Validation and Reference Values of Gluteus Medius Clinical Test.

Amanda S S Teixeira¹, Paula L Silva², Sabrina P Cintra¹

¹Federal University of Minas Gerais.

International Journal of Sports Physical Therapy

|April 12, 2021

Summary

The gluteus medius clinical test is reliable for assessing hip abductor function, complementing hand-held dynamometry. This low-cost test offers valuable insights into muscle function beyond strength.

Keywords:

endurance gluteus medius injury movement system physiotherapy strength

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Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients

Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients

Published on: April 12, 2011

Area of Science:

Biomechanics
Musculoskeletal assessment
Sports medicine

Background:

Hip abductor muscles, primarily the gluteus medius, are crucial for controlling hip adduction in closed kinetic chains.
Impaired frontal plane knee alignment during activities like squatting and jumping can overload joint structures, including the ACL and patellofemoral joint.
Hand-held dynamometry (HHD) is a reliable tool for assessing hip abductor muscle strength.

Purpose of the Study:

To evaluate the concurrent validity between a gluteus medius clinical test and HHD-based maximal isometric hip abductor force testing.
To determine the intra- and inter-examiner reliability of the gluteus medius clinical test.
To establish reference values for the gluteus medius clinical test in young athletes.

Main Methods:

A cross-sectional study design was employed.
Thirty healthy individuals underwent maximal isometric hip abductor testing using HHD and the gluteus medius clinical test in separate weeks.
Intraclass correlation coefficients (ICC2,2) were calculated for reliability, and the clinical test was administered to 273 athletes for reference values.

Main Results:

A weak positive correlation (r = 0.436, p = 0.001) was observed between the clinical test and HHD, suggesting they assess different aspects of gluteus medius function (likely endurance vs. strength).
Excellent intra- and inter-examiner reliability (ICC > 0.95) was demonstrated for the gluteus medius clinical test.
Reference values were established for the gluteus medius clinical test in a population of youth athletes.

Conclusions:

The gluteus medius clinical test is a reliable measure of hip abductor function.
This clinical test assesses a different domain of muscular function than HHD, likely encompassing aspects beyond maximal strength.
The low-cost nature of the gluteus medius clinical test makes it a practical addition to hip abductor assessments in clinical settings.