The vaulting mount is the first skill every vaulter learns and one that most beginners struggle with for the same predictable reasons. The most common mistake is attempting the mount through upper body strength alone, pulling with the arms rather than using the momentum generated by the running approach and the swing of the legs. A correct mount uses the running approach to generate kinetic energy, the grip on the handles to redirect that energy upward, and a strong swing of the legs to carry the body onto the horse.
The second common mistake is looking down at the horse or the ground during the approach rather than forward through the motion. Looking down causes the chin to drop, the shoulders to round, and the core to lose tension at the exact moment when body stability is most needed.
The third common mistake is arriving on the horse's back in a collapsed position with a rounded back and dropped shoulders rather than in a correctly tensioned basic seat. Vaulters who train the mount on the stationary barrel until they can arrive in a correct basic seat consistently will find the transition to the moving horse significantly easier.