Putting Report Details: Key and Diagrams: This section provides a visual diagram of the. information is saved in the client s database

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Bruce Underwood
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1 Quintic Putting Report Information Guide Putting Report Details: Enter personal details of the client or individual who is being analysed; name, address, date, mass, height and handicap. This information is saved in the client s database under Players Details. There is no limit to the number of clients you can store. It is possible to create multiple reports for one player. Once the excel files have been created (via Quintic Biomechanics) it is then possible to analysis up to 6 putts in one Quintic Putting Analysis Report, putts can be from different putters, distances, indoors/outdoors, dates, green speeds, technical thoughts, set-up changes, psychological interventions... the list is endless. The interpretation of the data is primarily down to the coach / player to implement. The Quintic Putting Analysis Report allows 6 putts to be analysed and compared within one report. Average values and graphical representation are displayed when more than 2 files are analysed. Please note: if only one putt is analysed, then no average or standard deviation values are reported. The summary section allows instructors to reinforce advice and lesson tips. Any messages that are relevant to the person or the stroke can be added into the summary section so that the client can look back and focus on the advice / drills given by the coach. Key and Diagrams: This section provides a visual diagram of the location where the markers need to be placed in order for the software to gain the necessary information to create the putting report. If any of the markers are missing, then the software will be unable to produce the report correctly. Please take your time whilst placing the markers on the subject. Ensure the markers on the shoulders and elbows are not on loose fitting clothing. The markers should represent the shoulder and elbow joint centres from the face on camera view. SD (Standard Deviation) measures the amount of variation or dispersion the average. A low standard deviation indicates that the data points tend to be very close to the mean (consistent values) ; a high standard deviation indicates that the data points are spread out over a large range of values (inconsistent values). Backswing = Position at Address to Top of Backswing (Club is stationary / transition phase) Downswing = Position at Top of Backswing (Club stationary) to Impact (Ball Contact) Throughswing = Ball Contact to finish of the putting stroke (maximum horizontal distance) 1

2 Positions: Shoulder Tilt (degrees): Angle of the shoulders relative to the horizontal. Negative angle (trail shoulder higher than lead) or positive angle (lead shoulder higher than trail). Ideally a 0⁰ difference between Address & Impact (or as close to as possible) is required for consistency. Shaft Angle (degrees): Angle of the putter shaft relative to the vertical. Negative (forward press of shaft = de-loft) or positive (backwards shaft lean = adding loft). Ideally we are looking for 0⁰ or as close to as possible between address and impact. Lead Wrist Angle (degrees): Angle between club shaft, lead wrist and lead elbow. Minimal change required between Address and Impact to highlight no breakdown in this angle: < Angle compared to Address = wrist bow forward and de-loft the putter head. > Angle compared to Address = wrists breakdown and add loft to the putter. Minimal difference in angle between Address / Impact will increase likelihood of consistency in stroke and ball strike. Elbow Distance (cm): Distance between lead elbow and trail elbow. (<0.5cm) difference throughout the putting stroke to ensure consistency. Ball position relative to sternum (cm): Positive ball position promotes a positive attack angle which is preferred. Negative ball position means that the ball is positioned behind the sternum. A positive ball position of cm relative to sternum is optimal. Remember the radius of a golf ball is 2.13cm (Quintic will measure the middle of the golf ball). Angles and distance as described in the above table Head Kinematics: Head Displacement in the Backswing (cm): Preferred to stay stationary (or as close too as possible) throughout the stroke in order to maintain pivot points and body angles. Minimal movement (<0.5cm) in both directions (Sway& Lift). If the movement is greater than 0.5cm the pivot point will change due to movement in the head displacement. For example a negative sway during the downswing will affect the attack angle of the putter and launch angle of the ball. Head Displacement in the Downswing (cm): Lift of the head will often lead to different strikes on the putter face which will change ball speed / impact ratio. Head Displacement in the Throughswing (cm): The results shown represent a 1.24cm positive lift during the throughswing. The head is lifting upwards during the throughswing. Head Displacement from Address to Impact (cm): Any movement from the beginning of the stroke through to contact is not encouraged as it will change the pivot point of the stroke and change the strike of the putt. For consistency, minimal movement 0.5cm is required in both directions (Sway& Lift). 2

3 Pendulum Motion of Stroke: Line 2 Line 1 Intersect The angle is produced from the intersection between line 1 and line 2. In this case the angle is close to 90 degrees. Intersect Angle (degrees): Shoulder / Club Intersect: Should be as close to 90⁰ however it is more important to keep the angle as consistent as possible with little change. Angles >90⁰ shaft leaning forwards. Angles press. Elbow / Club Intersect: Should be as close to 90⁰ however it is more key to keep the angle as consistent as possible with little change. The results are slightly over 90 which suggest a slight forward press of the shaft. Wrist/Club intersect: The wrist is likely to have a greater than 90⁰ angle which simply occurs due to the forward press of the shaft but as long as this is maintained or stays as close to the original angle then the pivot point won' 't change and the stroke consistence improves. Address and top of backswing (degrees): Difference between all intersect angles from beginning of stroke to where the club changes direction (stationary). Top of backswing to impact (degrees): Difference between all intersect angles from top of backswing (club changes direction) and ball contact. Address and impact (degrees): Difference between all intersect angles from the beginning of the putting stroke to ball contact. This angle should be as close to 0⁰ as the golfer to ensure a pendulum putting action. The focus as always is consistency and to minimise manipulation of the putter during the putting stroke. The impact to finish angle (degrees): Difference between all intersect angles from ball contact to the end of putting stroke. The larger this angle, the more the putter releases through the putting stroke (lead wrist angle ncreasing). 3

4 Shoulder and Upper Trunk Kinematics: Throughout the stroke the Percentage Attributable to each Shoulder velocity should be maintained for all three phases of the putting stroke. This ensures a pendulum stroke with the shoulders and upper trunk rotating correctly. The shoulder joint has movement in all three planes (X,Y& Z). The results opposite highlight the backswing at 60% for the lead shoulder. However, this increases during the downswing / throughswing to 70%. The lead shoulder is more dominant for these phases of the putting stroke. Consistency between the three phases for both lead and trail shoulderss are optimal for performance. Backswing Velocity (m/s): Maximum velocity of the Lead and Trail shoulder from beginning of stroke to top of backswing. Downswing Velocity (m/s): Maximum velocity of the Lead and Trail shoulder from top of backswing to ball contact. Ideally the downswing velocity should be double the speed of the backswing velocity. Throughswing Velocity (m/s): Maximum velocity of the Lead and Trail shoulder from ball contact to end of stroke. Higher velocities in the throughswing (post impact) indicate high acceleration values for the putter head. Possible implications for this are poor distance control, excess body movement and poor contact. Maximum velocity = Ball contact. Shoulder Tilt (degrees): The horizontal angle of the shoulders during the different phases of the putting stroke. In this example, the golfer has a negative shoulder tilt (lead shoulder low), however the difference between Address and Impact is <1degree which is excellent. Address: Angle of the shoulders to the horizontal at beginning of putting stroke. Top of Backswing: Angle of the shoulders to the horizontal at point where the club changes direction (transition). Impact: Angle of the shoulders to the horizontal at point of ball contact. Impact Relative to Address: Horizontal angle of the shoulders at the beginning of stroke compared with the angle of the shoulders at ball contact. (Note: close to 0⁰ as possible) Degree of tilt in Backswing: Angle of the shoulder tilt at maximum shoulder velocity. Degree of tilt in Downswing: Angle of the shoulder tilt at maximum shoulder velocity. Angle: Horizontal, Trail Shoulder, Lead Shoulder: Maximum Angular Velocity of Backswing (deg/s): Maximum speed around the lead and trail shoulder from beginning of stroke to top of backswing (point where the club changes direction and moves back to the ball). Maximum Angular Velocity of Throughswing (deg/s): Maximum speed around the lead and trail shoulder from ball contact to end of stroke. Ratio of Angular Velocity for Backswing compared to Throughswing: Relationship between backswing speed and throughswing speed. (1:1) = same angular velocity on backswing and throughswing. For symmetry a (1:2) ratio is required. 4

5 Trunk Kinematics: Sway of the trunk during the putting stroke is not beneficial as it will lead to change in the pivot point (where you strike the ball during the stroke). It will affect attack angle and launch angle which need to remain the same if the rolll and strike of the putt are to remain consistent. For consistency results, minimal movement (<0.5cm) in both directions (Sway& Lift). Head displacement in backswing (cm): Amount of head movement from beginning of stroke to top of backswing Downswing (cm): Amount of head movement from top of backswing to ball contact Throughswing (cm): Amount of head movement from ball contact to end of stroke From address to impact (cm): Amount of head movement from beginning of stroke to ball contact Elbow Kinematics: Symmetry of the putting stroke requires the Percentage Attributable to each Elbow velocity should be maintained for all three phases of the putting stroke. If one side of the body creates a higher percentage of the putting stroke, this can cause problems to the repeatability of the stroke. For example, the percentage velocity of the lead elbow may increase as the player lifts the elbow in the vertical direction during the throughswing. Backswing Velocity (m/s): Maximum velocity of lead and trail elbows during the beginning of stroke to top of backswing. Downswing velocity (m/s): Maximum velocity of lead and trail elbows from top of backswing to ball contact. Throughswing velocity (m/s): Maximum velocity of lead and trail elbows from ball contact to end of stroke. Distance of elbows relative to each other (cm): Distance between lead and trail elbow during the putting stroke. This will be different for every individual but the key to this aspect is to maintain the distance from address to finish. As seen in these results the elbows become closer by 0.71cm during the backswing. They then move further apart by 0.71cm from top of Backswing until Impact and continue to move further apart until Finish. Ideally <0.5cm is preferred during the complete putting stroke. Every time the elbow distance changes, the resulting pivot point of the club also changes. 5

6 Wrist Kinematics: Symmetry of the putting stroke requires the Percentage Attributable to each Wrist velocity should be maintained for all three phases of the putting stroke. Backswing velocity (m/s): Maximum velocity of lead and trail wrists from beginning of stroke to top of backswing. Downswing Velocity (m/s): Maximum velocity of lead and trail wrists from top of backswing to ball contact. Throughswing velocity (m/s): Maximum velocity of lead and trail wrists from ball contact to end of stroke of lead wrist. As shown in the graph the golfer is still accelerating post impact. This is due to the length of the follow through. Maximum velocity would ideally occur at the point of impact. Distance of wrist relative to each other (cm): Distance between lead and trail wrist. This distance as with the previous distances of body part must stay the same throughout. The distance (9.05cm) remains constant (Address vs. Impact) which is exactly what you would like to see. However, it is interesting to note a reduction in this distance (0.28cm) during the top of the backswing and an increase (0.43cm) in separation during the throughswing. Ideally <0.5cm is preferred during the complete putting stroke. Every time the wrist distance changes, the resulting pivot point of the club also changes. Lead Wrist Angle (degrees): Lead wrist, Club Shaft and Club head angle. For consistent strike and ball contact there should be a minimal change in wrist angle during the difference phases of the putting stroke (<1⁰). In the example opposite, from the Top of BS (170⁰) to Finish (162⁰) there is approximately 8⁰ change in lead wrist angle! There is however, no difference in lead wrist angle comparing Address to Impact. 6

7 Club Kinematics: The club head velocity should produce a gentle acceleration (or as close to a constant velocity as possible) during the impact area. In the example opposite, the downswing and throughswing are similar in velocity, but both are more than three times that of the backswing. This highlights the excessive acceleration through the contact area. Distance / pace control becomes very difficult with this amount of acceleration. Ideally the downswing should be double the speed of the backswing = (1:2) ratio. Maximum Velocity of Club (m/s): - Backswing velocity (m/s): Maximum velocity from address to top of backswing. - Downswing Velocity (m/s): Maximum velocity from top of backswing to ball contact. - Throughswing Velocity (m/s): Maximumm velocity from ball contact to end of stroke. Location of Club at Max Velocity (m): Positive = distance AFTER point of impact. Negative = distance BEFORE point of impact. Path Length of Club Head (m) - Backswing (m): Distance from beginning of stroke to top of backswing. - Downswing (m): Distance from top of backswing to ball contact. - Throughswing (m): Distance from ball contact to end of stroke. Ratio of Downswing to Throughswing (Length/Distance): Relationship between backswing length and throughswing length. As the velocity of this player s downswing is more than three times that of the backswing, the club path has more than doubled the distance in the throughswing. Ideally the length of the Backswing = Throughswing for symmetry. Tempo Time (seconds): Rhythm / Tempo are individual to a specific player. - Time of Backswing (s): Time from beginning of stroke to top of backswing. - Time of Downswing (s): Time from top of backswing to ball contact. - Time of Throughswing (s): Time from ball contact to end of stroke. - Ratio of Backswing to Downswing (time): Relationship between the time of backswing and downswing. (Ratio 1:1) is optimal for symmetry. - Ratio of Backswing to Downswing and Throughswing (time): Relationship between the time of backswing compared to the downswing and throughswing times combined. Shaft Angle (degrees): Angle of the shaft relative to the vertical. The key is to focus on the any differences between address and impact (as small a change as possible). A negative shaft angle will indicate a forward press or a slight cocking of the wrist. A positive shaft angle increased dynamic loft on the putter hands behind the ball at impact. Attack Angle (degrees): Angle to the tangent the putter (toe) trajectory creates relative to the horizontal (5 frames Pre Impact) and (5 Frames Post Impact). The path of the toe can be displayed in Quintic Biomechanics software. Symmetry is the key focus to creating a consistent putting stroke. The attack angle during impact should be between 1 & 2 degrees. The attack angle (5 frames Pre Impact) and (5 Frames Post Impact) should mirror each other as closely as possible. Page 8 of 8: Blank Page for handwritten notes for the golfer / coach / parent 7

Quintic Ball Roll Key Parameters

Quintic Ball Roll Key Parameters How to interpret the numbers... www.quinticballroll.com 1. Face Angle & Start Direction 2. Clubhead Twist 3. Ball Speed & Pace Control 4. Launch Angle 5. Spin & Roll Key