Introduction to Biomechanics

9/5/2000


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Table of Contents

Introduction to Biomechanics

Biomechanical Analysis of Movement

Cause and Effect

Kinematics the geometry of motion

Motion Analysis

PPT Slide

Motion Analysis Space and Time

Motion Analysis

Motion Analysis

Temporal Analysis

Temporal Analysis Application: Locomotion

Temporal Analysis Left Front Paw Contact (LFPC) to next Left Front Paw Contact

PPT Slide

Representation of a system of interest as a single point Center of Mass

Total Body Center of Mass (TBCM)

Total Body Center of Mass

PPT Slide

Body Segment Parameters Define Segment End points, Segment Mass, Segment CM, and Moments of Inertia

PPT Slide

PPT Slide

Cause and Effect

Free Body Diagram

Mass Acceleration Diagram

Free Body Diagram = Mass Acceleration Diagram

Analysis of a Multiple Link System beyond the total body center of mass (TBCM)

Linear Position qualitative

Linear Position quantitative analysis

Locomotion

Temporal Analysis Left Front Paw to Left Front Paw

Linear Displacement

Linear Displacement of LFP

Average Linear Velocity of LFP

Angular Position global reference system

Angular Position anatomical reference system

Angular Displacement

PPT Slide

Average Angular Velocity

PPT Slide

Angular Displacement

Projectile Motion special case

High Jumper

Projectile Motion special case

Projectile Motion special case

Flight Phase with air resistance FBD MAD

Tennis Player

FBD MAD

Gymnastics

FBD MAD

Ergonomics

FBD MAD

Projectile Motion

Projectile Motion

Projectile Motion special case

Free Body Diagram special case

Mass Acceleration Diagram special case

Projectile Motion Position

Projectile Motion

Projectile Motion

Projectile Motion

Projectile Motion

Projectile Motion Vertical Velocity

Projectile Motion

Total BodyKinetics

What Causes a Change in Total Body Momentum?

PPT Slide

More Than One Way to Achieve Change in Total Body Momentum

PPT Slide

PPT Slide

PPT Slide

Orientation of TBCM Relative to the Ankle

Joint Kinetics

Joint Kinetics free weights

Joint Kinetics pulley system

Joint Kinetics free weights FBD MAD

Joint Kinetics pulley system FBD MAD

Joint Kinetics free weight FBD MAD

Joint Kinetics pulley system FBD MAD

Segment Angle Relative to Reaction Forces Influences Mechanical Demand

Muscle Forces*

Net Joint Moments Achieved with Different Muscle Activation Patterns

Relationship Between Linear and Angular Motion

Relationship Between Linear and Angular Motion

Relationship Between Linear and Angular Motion

Relationship Between Linear and Angular Motion

Author: Jill McNitt-Gray

Email: kcosta@usc.edu

Home Page: http://www.usc.edu/dept/LAS/kinesiology/exsc408l/index.html