HTMR Workshop, 2006

Applications for Qualitative

and Quantitative Motion

AnalysisGary D. Heise, PhD

Mark Peters, MA, ATC, CSCS

Cory L. Christiansen, MS, PT

University of Northern Colorado

School of Sport & Exercise Science

Biomechanics Lab & Human Performance Lab

HTMR Workshop, 2006

Greeley, CO

Colorado Springs, CO

210 km

HTMR Workshop, 2006

OutlineOutline

Historical Comments

Qualitative Applications

Quantitative Applications

Peak Motus

HTMR Workshop, 2006

Historical CommentsHistorical Comments

Early Motion AnalysisPhotography

Moving Pictures

MuybridgeMarey

HTMR Workshop, 2006

20th Century Motion AnalysisMany descriptive studies

More RecentlyHypothesis-driven research

Modeling more common

Historical CommentsHistorical Comments

HTMR Workshop, 2006

OutlineOutline

Historical Comments

Qualitative Applications

Quantitative Applications

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Question:How can clinicians (e.g., athletic trainers)

improve the rehabilitation of injured athletes?

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Application:Record baseline, “healthy movement profiles” for possible, post-injury comparison.

Dartfishsample video

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Example:golf

Dartfishnon-numerical

cues & tools

“key positions”

easily shared

Dartfishhigh school golfer

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Example:squat

poor form

DartfishUNC Human Performance Lab

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Example:squat

good form

DartfishUNC Human Performance Lab

HTMR Workshop, 2006

Qualitative ApplicationsQualitative Applications

Dartfish, SimulCamUNC Human Performance Lab

HTMR Workshop, 2006

OutlineOutline

Historical Comments

Qualitative Applications

Quantitative Applications

Peak Motus

HTMR Workshop, 2006

Quantitative ApplicationsQuantitative Applications

Questions:Does flexibility influence motion? Do alterations

from stretching influence motion?

HTMR Workshop, 2006

Quantitative ApplicationsQuantitative Applications

Applications:stretching and dynamic stiffness

stretching and locomotion in older adults

flexibility and runners

HTMR Workshop, 2006

Quantitative ApplicationsQuantitative Applications

Range of Motionactive ROMmeasured with videohigh reliabilityclinician bias removed

Peak Motus 9.0Vicon Motion Systems, Inc.

Ankle Angle (df+, pf-)

HTMR Workshop, 2006

Peak Motus 9.0Vicon Motion Systems, Inc.

Quantitative ApplicationsQuantitative Applications

Ankle Angle (top), EMG activity (bottom)

Stretchingactive ROM dynamic stiffnessEMG measures

Leg SpringModel

HTMR Workshop, 2006

Peak Motus 9.0Vicon Motion Systems, Inc.

Joint Angles: Hip (top), Knee, Ankle (bottom)

Stretchingolder adultswalking kinematics

HTMR Workshop, 2006

Peak Motus 9.0Vicon Motion Systems, Inc.

Angular Velocities: Hip (top), Knee, Ankle (bottom)

Stretchingolder adultswalking kinematics

HTMR Workshop, 2006

Peak Motus 9.0Vicon Motion Systems, Inc.

Stick Figures: Runner A (top), Runner B (bottom)

sideview

topview

HTMR Workshop, 2006

Peak Motus 9.0Vicon Motion Systems, Inc.

Runner A: Shoulder Line, Hip Line, (Shoulder – Hip)

A-P axis

Left Shoulder

Right Shoulder

(Shoulder – Hip)

HTMR Workshop, 2006

Concluding CommentsConcluding Comments

Qualitativefamiliarity with system

feedback for patient

Quantitativefamiliarity with system

feedback for experts

Relevant Informationkeep it simple

use proven variablesBorelli

HTMR Workshop, 2006

AcknowledgementsAcknowledgements

Peak Motus