Takeoff power depends on dorsiflexion
The push off the takeoff foot is loaded through the front of the ankle. A stiff ankle limits how much force the calf and Achilles can generate before the pole catches. Mobility = energy in.
Ankle mobility is an underrated pole vault limiter. The takeoff requires a strong push from a dorsiflexed ankle; the planting motion requires the back ankle to flex enough to support the drive. Vaulters with stiff ankles tend to leave power on the runway. Below: the drills that move mobility, and how to test if yours is the limiter.
The push off the takeoff foot is loaded through the front of the ankle. A stiff ankle limits how much force the calf and Achilles can generate before the pole catches. Mobility = energy in.
Sprinting on a stiff ankle is slower, stride for stride, than a mobile ankle. Sprinters and jumpers with limited dorsiflexion shorten their drive phase and lose runway speed.
Wall calf stretches for the gastroc, knee-bent calf stretches for the soleus, banded ankle distractions for joint mobility. 3-5 minutes a session, daily. Cheap, no equipment.
Mobility work is hard to see in itself, but the carry-over shows on the runway. Film an approach, AI grades drive-phase angle and stride length on the takeoff side. Mobile ankles produce a cleaner drive and a longer last-3-strides pattern.
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