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 unsupported pelvis drops as the muscle fatigues.

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