Dr. Kwon Explains Ground Reaction Forces (GRF) in Golf | The Science Behind Power
Dr. Young-Hoo Kwon, a leading biomechanist, explains the science of Ground Reaction Forces (GRF) using Newton's Laws of Motion. He demonstrates how golfers can maximize power not by pushing harder, but by moving the body correctly to trigger 'unweighting' and 'active push' phases through efficient transitions.
Ground Reaction Force (GRF) is the reaction to the force you apply to the ground; it is the force that actually moves your body.
GRF is the only force you can control (magnitude and direction), whereas body weight is a constant downward force.
Force causes acceleration, meaning your body motion is the direct result of how you interact with the ground.
To maximize force, use 'change of direction' (downward to upward transition) rather than trying to push the ground from a static position.
Correct body motion automatically generates the ideal force pattern; focusing on movement quality improves force plate data.
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