Qualitative Analysis of the Golf Swing

Open Kinetic Chain

Throw Like Movement

Kinematic Sequence – Summation of segmental forces

• Project an object
• Distal segments lag behind the proximal
• Achieve maximum velocity
• Object through curvilinear path
• Rotation movements

Follow Through

• Deceleration of the arm and club speed by displacing the energy created
• Deceleration of arm and club

Assessment Criterion - Golf swing

Downswing

• Overlaps with the back swing
• Forward movement of hips
• body rotates back in the opposite direction releasing the stored elastic energy to hit the ball as far as possible.

Backswing

Evaluation Phase

Good

X Factor Rotation in back swing

Timing (Ratio)

• Rotation of the body and arms
• Club travels backwards, up and around the body

"The back swing acts as a loading phase in which energy is generated and stored through the rotation and stretching of tendons "

(Biewener & Roberts)

transfer of weight

Ratio= 3.15 : 1

• Loss of posture early in back swing

Set-up

Grip

• Left hand on bottom, Right on top
• Thumbs pointing down the shaft
• Little finger (RH) interlock with index finger (LH)

Stance

• Feet shoulder width apart
• Knees slightly bent
• Straight arms
• Neutral spine (change this and pic)

Early extension in downswing into impact

Background

What? The act of swinging a golf club to hit a golf ball

Desired Outcome: Distance & accuracy

Mechanical purpose: Speed and accuracy

4 Phases: Set-up, back swing, downswing & follow through

Intervention Phase

Qualitative Analysis of the Golf Swing

Correcting Errors

Potential causes of error

Presenters: David Williams, Adrian Lees, David Woo

• Incorrect equipment
• Incorrect swing mechanics
• Physical limitations

1. Equipment check

2. Consult with Coach

3. TPI Golf Specific screening to identify physical limitations

Error correction- Loss of posture in back swing

Physical drill

Technical drill

Sweep dust

Lunges

Error correction -Early extension in downswing(pelvis thrusting towards ball)

physical drill

Technical drill

Patio chair drill

one leg hip rotation

References

Biewener, A. & Roberts, T. (2000). Muscle and Tendon Contributions

to Force, Work, and Elastic Energy Savings: A Comparative Perspective. Journal

of Exercise and Sports Science Reviews

Hay, J (1993). The biomechanics of Sports Techniques. 4th edition.

Prentice Hall, New Jerse

Moss, Shane (no date). What biomechanics contribute to the power and accuracy of the golf drive swing? Retrieved 23 of April 2015 from, < http://golfdrivebiomechanics.weebly.com/>

Cheetham, P (2013). The Difference Between X-Factor And X-Factor Stretch. Retrieved 26 of April 2015 from < http://www.mytpi.com/articles/biomechanics/the_difference_between_x-factor_and_x-factor_stretch>

Cheetham, P (2013). Measuring the timing of the golf swing. Retrieved 26 of April 2015 from <http://www.mytpi.com/articles/biomechanics/measuring_the_timing_of_the_golf_swing_from_video>

The twelve most common swing faults (no date). Retrieved 24 April 2015 from <http://www.finishfirstsports.com/the-twelve-most-common-swing-faults.html>

Early Extension (no date). Retrieved 28 of April 2015 from <http://www.mytpi.com/improve-my-game/swing-characteristics/early-extension>

Brown, M (no date). Repair Services. Retrieved 20 April 2015 from < http://www.clubshop-ct.com/repair%20services/rpair-services.html>