The skier on the left is absorbing the top of the bump before the pole plant. The knees and ankles are flexed along with slight hip flexion. The pole is planted in the snow to add stability to the body. A slight touch of the pole in the snow may be all that is required in moderate bumps. In steep bumps a more aggressive pole plant may be required for more stability and for quicker turns in the bumps. The photo of the upper right shows the extension of the knees and ankles at the completion of the turn before the next bump is encountered.

The two photos above show the skier making quick edge changes, a must in bump skiing to prevent excessive speed and to form a serpentine path through the bumps. Picking the proper path through the bumps is a skill that will develop over time. Try to be looking at least one bump ahead so that the turning is smooth and continuous.

The left photo above shows the skier flexing the legs to absorb the bump. The center and right photos show leg extension while carving around and down the side of the bump.

The left photo above shows the skier flexing the legs at the bump for the next turn while the last two photos illustrate leg extension in the control and completion phases of the turn.

Video of mogul skiing with normal speed and slow motion