TRENDELENBURG'S

TEST

​• Test positioning

The client stands on one lower extremity.

​• Action

The client remains in this position for approximately 10 seconds and then switches extremities.

​• Positive finding

A positive finding is seen when the pelvis on the unsupported side drops noticeably lower than the pelvis on the supported side.

This indicates a weakness of the gluteus medius muscle on the supported side.

​• Special considerations & comments

With a negative test, the gluteus medius on the supported side will perform a reverse action since the supported femur is stabilized.

This will allow for the unsupported pelvis to remain level with the supported pelvis.

With a weak gluteus medius on the supported side, the supported pelvis drops as the muscles fatigues.

This test may also indicate an unstable hip on the supported side.

The Trendelenburg Test, named after Dr. Friedrich Trendelenburg, was developed to assess hip abductor function, with contributions from Dr. James Cyriax in diagnosing lumbar spine and hip joint involvement.