0:00:00.000,0:00:02.000
(English captions by Andrea Matsumoto from the University of Michigan)

0:00:02.760,0:00:05.910
The Trendelenburg test assesses for hip stability.

0:00:05.910,0:00:11.020
The examiner sits behind the patient and places[br]thumbs in the posterior superior iliac spines

0:00:11.020,0:00:14.830
and hands on the iliac crests to check for[br]level height.

0:00:14.830,0:00:19.140
The patient then stands on one leg with the[br]raised unsupported leg flexed at the knee

0:00:19.140,0:00:21.000
and hip.

0:00:21.000,0:00:25.680
In normal function, the unsupported pelvis[br]elevates slightly, indicating the gluteus

0:00:25.680,0:00:29.840
medius muscle appropriately abducts the supported[br]hip.

0:00:29.840,0:00:34.570
If the pelvis drops on the unsupported side[br]or remains level, it's considered a positive

0:00:34.570,0:00:40.010
Trendelenburg, indicating a weak gluteus medius[br]or intra-articular pathology in the supported hip.