fighting the wall

Film still: View of a white wall, at the bottom of the picture a dark brown parquet floor. In front of the wall is a person dressed in black with short sleeves and dark, short hair. She can be seen from behind and seems to take a step towards the wall in a quick movement. In her hands, to the left of her body, she holds a stick at forearm length, which she moves quickly and which is blurred. Her left arm is bent to strike. fighting the wall, video, 0:42 mn (2016)
The same scenario. Now the person is standing with legs set further apart and slightly bent toward the wall, the cane can be seen on the right side of her body at the level of the lower legs, again slightly blurred. Courtesy of Kulturstiftung des Freistaates Sachsen
The scenario repeats itself. The person has now placed one foot further towards the wall and seems to lunge from the right to strike. The stick can now be seen blurred and moving at chest level.
Another movement in the same scenario. The person has turned slightly towards the camera, both legs are now almost behind each other, the stick is vertically aligned at belly button height and again blurred in motion.