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Dr. Stuart McGill: Build a Strong, Pain-Proof Back

Huberman Lab

ANECDOTE

Triathlete Example - Tuned Stiffness

  • A triathlete's body must adapt to three different movement demands: swimming, cycling, and running.
  • Swimming requires flexibility, cycling requires core stiffness for power transfer, and running requires tuned stiffness for elastic energy recovery.
  • These varying demands highlight how athletes must adjust their muscle stiffness and neurology for optimal performance in each discipline.
  • The most efficient runners pre-stiffen their muscles to store and recover elastic energy, similar to a kangaroo’s hop, contrasting with the flexibility needed for swimming.
  • Maximal muscle contraction creates immobility, demonstrating the importance of tuned muscle stiffness.
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