BioStageTM for the Life Sciences October 2010 Draft Version Computer Vision Systems BioStageTM for the Life Sciences October 2010 Draft Version

Overview kinematic systems Camera-based Sensor-based Video Camera Infra-red Camera Goniometer – 1D, 2D Inertial Sensors Marker-less Systems Marker-based Systems Marker-based Systems Electromagn. Sensors – 3D Xsens MVN Animazoo IGS-190 PEAK SIMI motion sensors (accelerometers) and rotation sensors (gyroscopes) to calculate the position, orientation, and velocity BioStage Aktiv-Marker Polhemus Vicon MAC Qualisys Optitrack Passiv-Marker

Biomech analysis systems Anthro- pometry Kinematics Kinetics Electro-myography “Body” “Motion” “Forces” “Neuromusc. Control” BioStage Body- - Dimensions -Structure - Proportion Position, Angle, Velocity, etc. Forces, Moments, Pressure Distribution Muscle- action- potiential Kinesiological Analysis Data integration & Correlation

Why Motion Capture? Planes of Motion

Why Motion Capture? Joint Actions – i.e. hip http://www.brianmac.co.uk/musrom.htm http://www.physical-solutions.co.uk/articles/Understanding%20Planes%20and%20Axes%20of%20Movement.pdf

Why Motion Capture? BioStage - Research Biomechanics Kinesiology Exercise Science Physical Therapy Physical Medicine & Rehabilitation Human Movement Science Health, Physical Education, and Recreation Biomedical Engineering

BioStage – Clinical Applications Why Motion Capture? BioStage – Clinical Applications Orthopaedics Cerebral Palsy Neuroscience Physical and Occupational Therapy Rehabilitation Podiatry Chiropractic Posturology Sports Medicine

BioStage – Sports Applications Why Motion Capture? BioStage – Sports Applications Golf Baseball Pitching and Throwing Fitness Biking Tennis Soccer et altri

Applications and Benefits Clinical Apps and the Academics Why Motion Capture? Applications and Benefits for Clinical Apps and the Academics

BioStage – Specific Clinical Use Why Motion Capture? BioStage – Specific Clinical Use Pre-and post surgery evaluations Rehabilitative Treatment Lower extremities - Gait Analysis Upper body Analysis Orthopaedic Joint Replacements Posture Analysis Orthotics and Prosthesis Development

Clinical Motion Analysis to… Why Motion Capture? Clinical Motion Analysis to… develop predictive models of pathology diagnose/quantify functional limitations identify multi-level motion problems document functional status support Healthcare Research

Motion Analysis – General Benefits Why Motion Capture? Motion Analysis – General Benefits Surgeon  optimize their techniques Surgeon  design an optimal surgical plan Surgeon  determine if and when surgery is necessary Implant designer  improve devices Coach  better quantify improvement / loss of performance during training Patient  better educated by seeing changes Athlete  better quantify improvement by comparing with other athletes Club owner  find out if athlete is prone for injury PT/Rehab doctor  better quantify improvement during therapy Health care system  long-term improvement in cost and quality of treatment Student  Easier access to motion capture technology

Benefits for Clinical Apps Why Motion Capture? Benefits for Clinical Apps Reduced patient preparation time Easier on patients with impairments Easier for nurses to work with patients More natural movement leads to higher data quality Immediate results and reports available to doctor and patient for review True and valid data comparison over repeated trials Reduced cost for motion analysis for the patient and the doctor Fun 3D immersive visuals encourage patients to exercise more often Improved exercise experience, patients are more actively engaged in recovery regime

Benefits for the Academics Why Motion Capture? Benefits for the Academics Markerless system allows all students to get hands-on experience with computerized motion analysis Streamlined real-time capture process for fixed class times and research timelines User-friendly interfaces ideal for multi-discipline and interdepartmental use A state-of-the-art-solution to attract students, businesses, and professionals to the University

Why Motion Capture? Challenges Tracking children Tracking subjects with impairments (cannot stand or walk straight, arms close to the torso, etc.) Tracking of amputees Tracking of subject in wheel chairs, using walker, cane, crutches or other equipment Tracking internal / external rotation What validation have you done? What is the accuracy of the data? Do you have any publications?

Integration Software & Hardware Why Motion Capture? Integration Software & Hardware

Integrated Motion Analysis Why Motion Capture? Integrated Motion Analysis OM Motion Tracking Kinematics TMM Motion Analysis Software Video Force Plates Forces and Moments Kinetic EMG Muscle Activity

Integration The MotionMonitor Why Motion Capture? Integration The MotionMonitor Real Time Animation Kinematics Kinetics EMG

Integration Force Plates Why Motion Capture? Integration Force Plates Measurement of floor reaction forces in 3 dimensions

Why Motion Capture? Integration EMG Wireless EMG electrodes

Validation and Accuracy Why Motion Capture? Validation and Accuracy

Why Motion Capture? BioStage Model BioStage Model Tracking of 21 Segments Segment length directly measured or derived from separate measurements Static and dynamic (functional) user calibration Length ratios based on Drillis and Contini (1966)

Joint Degree of Freedom Why Motion Capture? Joint Degree of Freedom BioStage Model Head/Neck: 3DoF Neck/Upper Chest: 1DoF Upper Chest/Mid Torso: 3DoF Mid / Lower Torso: 3DoF Hip Joint: 3DoF Knee Joint: 3DoF Ankle Joint: 1DoF Shoulder Joint: 3DoF Elbow Joint: 1DoF Wrist: Locked to lower arm

Validation study in Cologne Why Motion Capture? Validation study in Cologne Evaluation and Acurracy tests Comparison with Vicon system Jan 2010 – Jun 2010 Goal: Proof translational accuracy of 5mm and rotational accuracy of 3deg Problem: Reference marker-less with marker-based Institut für Biomechanik und Orthopädie German Sports Science University in Cologne Prof. G.P. Brueggemann Kai Oberländer

Validation Goals Show accuracy Validate vs existing systems provide a fitting system that ensures precise, repeatable, consistent length measurements of human bones/segments. deliver anthropometric measurements through a defined protocol in a totally "non-invasive" method in real-time. evaluate BioStage, its performance, and to assess its accuracy, reliability and suitability for use in research, sports and clinical settings. perform an assessment of errors that affect temporal, kinematic, and kinetic variables when estimated by means of the proposed markerless system compared to the existing markerbased motion capture systems using reflective markers currently used in motion analysis. validate BioStage for biomechanical research, sports and clinical use

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage 2D Video Analysis / Full Range of Motion Gait Squatting Pendulum motion Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Organic Motion - BioStage Validation and Accuracy Overview Organic Motion - BioStage 8/27/2010

Why Motion Capture? Tradeshows

Important Tradeshows CSM (Combined Section Meeting) ACSM (American College of Sports Med) APTA (American PT Association) ASB (American Society of Biomechanics) ISBS (Internat. Society of Biom.in Sports) GCMAS (Gait and Clinical MovAnal Society) AACPDM (American Academy for Cerebral Palsy and Developmental Medicine )