Biomechanics and the Golf Swing by Jim Estes

Biomechanics and the Golf Swing

by: Jim Estes

Recent test results from Titliest Performance Institute has changed the way golf is being taught!

In order to properly diagnose swing flaws, functional movement screens that test trunk mobility, core stability, balance, and coordination have to be completed.

Case Study:

Player experiences low back pain because of weak left gluteal.

Biomechanical Analysis in 2D:
  • C-posture rounded back limits shoulder rotation
  • Flat shoulder turn
  • Slight Forward Lunge
Results of Medical Assesment:
  • Asked student to do a Pelvis Tilt, Deep Squat, Pelvic Bridge, Side Bridge, Standing One leg Trunk Rotation.
  • Asked the student to turn shoulders without turning the hips. Limited bilateral mobility only 30 degrees
  • Modified Thomas Test for hip flexors revealed tightness and limited Internal and External Hip Rotation
Golf Swing Faults:
  • Player cannot maintain dynamic spinal posture through impact because hips thrust toward the ball due to lack of rotation internally of the left hip
  • Work on Hip-Trunk Separation
  • Plevis Tilts with Rotation of hips only
  • Pelvic Bridges one leg on your back for glutieus strength
  • Posture Exercises: Stand againsit wall with heels touching the wall, lower back, mid back, and head. Push head against wall at the same pushing palms against wall
Player in 2D video from the face on view is sliding the right hip instead of turning the right hip. The root cause of a lateral sway of the hips is lack of internal rotation of the right hip.

Swing Check List:
  • Proper Hip Hinge at Address by pushing rear end back while bending forward from spine
  • Awareness of hip alignment and shoulder alignment
  • Work on loading into right ball of foot while maintaining a braced right leg and maintaining balance
  • Hips should tilt on backswing or slide
  • Turn shoulders 45 degrees without turning hips
  • Standing Arm Slide ( Stand with your back against the wall and walk your feet several feet away from the wall keeping the arms elevated against the wall in a 90 degree angle)
  • Push the front of your arms against the wall with the arms elevated above your head

Jim Estes Jim Estes
Director of Golf Instruction
Performance Golf Academy
Olney Golf Park
f 301-570-2676
p 301-570-6600

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