Gluteal muscles (anatomy)

Back to the backside with a look at the three gluteal muscles and what they're there for. And what is Trendelenburg's sign?
Daily Anatomy App:

For a random human anatomy question every day on your phone you can get my Daily Anatomy question app from the Apple App Store:

https://itunes.apple.com/gb/app/daily-anatomy/id1001729137

or Google Play Store:

https://play.google.com/store/apps/details?id=com.suanatomy.dailyanatomy
Music by Jahzzar
Album: HiFi City Tales
Song: Bodies
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Видео Gluteal muscles (anatomy) канала Sam Webster