the ssc vu test for 3d driven biomechanics
TRANSCRIPT
![Page 1: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/1.jpg)
1Dr. Andy Franklyn-Miller 1
RETURN TO PLAY MOVEMENT ANALYSIS FOR RTP DECISION MAKING
JOIN THE LIVE TWITTER COVERAGE: @AFRANKLYNMILLER
![Page 2: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/2.jpg)
AGILITY VERSUS CHANGE OF DIRECTION
FATIGUE RESISTANCE AND SPEED
MEDICAL CLEARANCE FOR FULL PARTICIPATION IN SPORTS
WITHOUT RESTRICTION OR PAIN
FOR THE MAJORITY OF INJURIES OUTSIDE OF ACL REHABILITATION
THERE IS LITTLE ORIGINAL RTP RESEARCH
LACK OF STANDARDISATION LEADS TO MEDICOLEGAL OR
FINANCIAL IMPLICATION CLUB VS COUNTRY
PLAY VERSUS PERFORMANCE
Return to Play Quick Overview about Return to Play
2 2 @AFRANKLYNMILLER – “Lack of standardisation leads to medico-legal risk in medical clearance of return to play”
![Page 3: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/3.jpg)
Basic Mechanics
3 3
Joint moment
@AFRANKLYNMILLER – “Each joint has an angular velocity , but joints need coordination to produce performance”
T = Fd
![Page 4: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/4.jpg)
Basic Mechanics
4 4
Angular velocity
@AFRANKLYNMILLER – “Each joint has an angular velocity , but joints need coordination to produce performance”
LEVER ARM IS MEASURED FROM THE AXIS OF ROTATION AXIS OF ROTATION
POINT OF APPLICATION OF THE FORCE
RADIUS FROM AXIS OF ROTATION TO POINT OF APPLICATION OF THE FORCE
F APPLIED FORCE
![Page 5: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/5.jpg)
Muscle Contribution
5 5
Multi joint Multi plane
Mh
Ma
ILIOPSOAS GLUTEUS MAXIMUS SEMITENDINOSUS SEMIMEMBRANOSUS BICEPS FEMORIS SARTORIUS RECTUS FEMORIS
GASTROCNEMIUS SOLEUS TIBIALIS POSTERIOR PERONEI TIBIALIS ANTERIOR
Mk
SEMITENDINOSUS SEMIMEMBRANOSUS BICEPS FEMORIS SARTORIUS RECTUS FEMORIS VASTUS MEDIALIS VASTUS LATERALIS VASTUS INTERMEDIUS GASTROCNEMIUS
Mh
Mk
Ma
@AFRANKLYNMILLER – “Multi planar , segmental coordination key in managing return to play, but can you see it?”
![Page 6: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/6.jpg)
Motor Recruitment
6 6
Its not just about the joint moment
@AFRANKLYNMILLER – “Rate of force development and motor recruitment makes it more complex”
![Page 7: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/7.jpg)
Rate of force development
7 7
Motor unit recruitment
@AFRANKLYNMILLER – “Imagine a dimmer switch and the need to turn it to max”
![Page 8: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/8.jpg)
Understanding Groin Pain
8 8
We’re experts in the field of groin pain treatment
![Page 9: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/9.jpg)
3D Biomechanics
9 9
Objective reliability of markers at instant time points
@AFRANKLYNMILLER – “Multi plane, multi joint segmental coordination assessment under load”
1
2
3 4 5
6
7
Quantify complex movement
Understand mechanism of injury
Identify joint load
Define greater performance
Determine Variability
Reduce Injury risk
Monitor field based pre and post injury
Return to performance
![Page 10: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/10.jpg)
Side Hurdle Video
10 10
A quick demo of our animation
![Page 11: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/11.jpg)
3600 biomechanics Patients in ACL and Groin
![Page 12: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/12.jpg)
8 Tests per protocol
![Page 13: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/13.jpg)
2 time points, 7 segments and 3 planes
![Page 14: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/14.jpg)
746,592 data points per subjects
![Page 15: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/15.jpg)
268,560,000 datA points since we started
![Page 16: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/16.jpg)
16
1 - 2
3 - 4
5 - 6
7 - 8
Movement Patterns
Absolute Strength
Performance
Fatigue
Joint Loading
Intersegmental Coordination
Variability
Coaching
Factor influencing Biomechanics What we don't know
1616 16 @AFRANKLYNMILLER – “How does variability and segmental linkage effect re-injury?”
![Page 17: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/17.jpg)
17
Joint Loading Athletic Groin Pain (Part 2): A prospective cohort study on the biomechanical evaluation of change of direction Franklyn-Miller, A BJSM ( In review)
17 17 @AFRANKLYNMILLER – “Movement patterns distinguish joint loading differentiation”
![Page 18: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/18.jpg)
18
Movement Patterns Athletic Groin Pain (Part 2): A prospective cohort study on the biomechanical evaluation of change of direction Franklyn-Miller, A British Journal of Sports Medicine (Under review)
18 18 @AFRANKLYNMILLER – “Movement patterns distinguish joint loading differentiation”
![Page 19: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/19.jpg)
19
Intersegmental Coordination: Inter-Segmental Coordination Pattern in Patients with Anterior Cruciate Ligament Deficiency during a Single-Step Descent Mohammadreza Nematollahi, PLOS One 2016
19 19 @AFRANKLYNMILLER – “The coordination of multiple joint is vital in controlling COM and COP”
![Page 20: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/20.jpg)
20
Absolute Strength Comparison of strength and power measures in identifying a rehabilitation status following anterior cruciate ligament reconstruction – O’Malley, E 2016 JBJS(Br) submitted
20 20 @AFRANKLYNMILLER – “Control of Torque production is greater than absolute strength”
![Page 21: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/21.jpg)
21
Variability Foot contact angle variability during a prolonged run with relation to injury history and habitual foot strike pattern M. R. Paquette et al Scandinavian Journal of Medicine and Science in Sports 2016 Early View
21 21 @AFRANKLYNMILLER – “We do not understand whether variability is protective or injurous”
![Page 22: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/22.jpg)
22
Fatigue Changes in drop-jump landing biomechanics during prolonged intermittent exercise Schmitz et al SportsHealth.2014Mar;6(2):128-35
22 22 @AFRANKLYNMILLER – “Fatigue effects both reproducibility and segmental coordination”
Sports health. 2014 Mar;6(2):128-35. doi: 10.1177/1941738113503286.
Changes in drop-jump landing biomechanics during prolonged intermittent exercise
Schmitz RJ1, Cone JC2, Tritsch AJ3 Pye ML1, Montgomery MM4, Henson RA5, Shultz SJ1.
![Page 23: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/23.jpg)
23
Coaching Through Intrinisic motivation and attention to Learning - Gabriele Wolf Psychon Bul 2016 Online First
23 23 @AFRANKLYNMILLER – “Best method of effecting coaching change in change of direction yet to be understood”
![Page 24: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/24.jpg)
24
Performance BiomechanicalfactorsassociatedwithFmetocompleteachangeofdirecFoncuIngmaneuver.Marshall B et al J Strength Cond Res 2014 28(10) 284
24 24 @AFRANKLYNMILLER – “Understanding segmental coordination improves performance in COD”
![Page 25: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/25.jpg)
Existing Agility Tests
25 25
Validated against time only
@AFRANKLYNMILLER – “Change of Direction is a closed skill in predetermined direction”
![Page 26: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/26.jpg)
Concept behind VU
26 26
Reproducibility of performance
@AFRANKLYNMILLER – “The journey from injury to performance controlled biomechanically”
Execution of movement
Reactive Chaos
Controlled condition
Reproducibility under fatigue
RETURN TO TRAIN
RETURN TO
PERFORMANCE
![Page 27: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/27.jpg)
The SSC VU data collection
27 27
Lab and field based data collection
@AFRANKLYNMILLER – “XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX”
![Page 28: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/28.jpg)
28 @AFRANKLYNMILLER – “VU @SSCSantry is new biomechanically driven RTP lab and field test”
SSC VU Test A biomechanically driven RTP field test
LABORATORY
FIELD
GLOBAL CENTRES
SPORTS SURGERY
CLINIC
VU DATABASE
DEIDENTIFIED SERVER INDIVIDUAL
RECREATIONAL CLUB
PROFESSIONAL CLUB
![Page 29: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/29.jpg)
Dr. Chris
Richter
Dr. Eanna
Falvey
Enda
King
Eamon O'Reilly
Mr. Ray
Moran
29 29 @AFRANKLYNMILLER – “A Team dedicated to advancing knowledge and practical rehabilitation”
Presentation thanks to
![Page 30: The SSC VU test for 3D Driven Biomechanics](https://reader031.vdocuments.us/reader031/viewer/2022030118/589fada01a28abf9038b47eb/html5/thumbnails/30.jpg)
30
Contact Dr. Andy Franklyn-Miller Sports Surgery Clinic, launched in 2007 in Dublin, is a state of the art orthopaedic hospital with orthopaedic surgery, medical imaging and specialise in 3D biomechanical rehabilitation of athletes from across the world.
http://drandyfranklynmiller.com
Twitter.com/afranklynmiller
Northwood Avenue, Santry, Dublin 9