In above video you are watching hip mobilization treatment with movement or you can call passive internal rotation treatment for left hip.
Patient came to clinic with chronic left hip pain, which increases with prolong standing and walking. Pain was constant and sharp in nature and started with no apparent reason. He tried some medication and massage therapy treatment which relieves the pain in non weight bearing position, but pain returns as soon as he stands or walks.
I started with regular hip assessment including range of motion, strength etc; he stood with left foot externally rotated.