When the Trail Foot Wins = Early Extension

Dr. Greg Rose of TPI joins Smart2move to analyze the biomechanical cause of early extension through ground reaction forces. He explains that when the trail foot exerts more force than the lead leg during the downswing, the body is forced to extend early to create space for the club.

• Early extension is often a mechanical response to an imbalance in ground reaction forces.
• The lead leg must 'win' the force battle against the trail foot to maintain posture through impact.
• If the trail foot dominates the force profile too late into the downswing, the hips will likely thrust toward the ball.
• Using ground force data helps identify why a golfer cannot stay in their posture.

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