What type of jump is characterized by a horizontal position of the leg at the apex of the jump?

The jump characterized by a horizontal position of the leg at the apex is the pike jump. In a pike jump, the body folds at the hips while the legs are extended straight ahead, creating a horizontal line at the peak of the jump. This position is distinct because the gymnast touches their legs together and ideally creates the straight line from the hips to the toes at the apex.

In contrast, the straight jump keeps the body in an upright position without folding at the hips, and the side leap involves a lateral movement rather than a defined horizontal leg position. A full turn involves rotation rather than the specific posture of the legs at the apex. Thus, the pike jump accurately captures the described horizontal leg positioning.