A study in the Journal of Physical Therapy Science found a high correlation between the strength of the big toe flexor muscle and countermovement jump height.
Researchers speculated that weak big toe strength leads to energy loss at the ankle joint, resulting in less explosive movements.
You can strengthen this flexor muscle area by pushing through the big toe when jumping and sprinting.
In the weight room, you can curl the big toe through the ground when coming upward on a Squat or Deadlift.
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