Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to hockey powerskate [title] Get into hockey posture. [step] Bend knees to a position where the lower part of the upper leg is perpendicular to the ice (90 degrees). Skates are shoulder width apart.

Ending1: Keep eyes on one side of the board. [title] Loop your left skate through your right arm. Ending2: The back is straight, and the chest upright. Bend at the hips, shoulders back, the upper body leaning forward (50 degrees), and hold your stick with two hands. Ending3: Your arms should be on the sides of your head. This posture should act as a push to the puck and/or not make you skate down flat. Ending4: [substeps] To do a handstand, the blades of your skates should be facing each other. Stand with feet slightly wider than shoulder width apart.

Answer format: ending1/ending2/ending3/ending4