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Introduction to Kinesiology & Biomechanics. Definitions  Kinesiology  Biomechanics.

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Presentation on theme: "Introduction to Kinesiology & Biomechanics. Definitions  Kinesiology  Biomechanics."— Presentation transcript:

1 Introduction to Kinesiology & Biomechanics

2 Definitions  Kinesiology  Biomechanics

3 Definitions  Kinematics  Kinetics

4 Definitions  Static Analysis  Dynamics Analysis

5 Definitions  Anthropometrics

6 Why study biomechanics?  Biomechanist vs Applied Biomechanist  Sports Performance  Ergonomics  Injury Prevention  Improved Rehabilitation

7 Ways to Solve Biomechanical Problems  Qualitative vs Quantitative  Scalar vs Vector Quantities

8 Basic Structural Analysis  Stress-Strain Curve Stress Strain Key Points on Curve  Elastic Modulus  Yield Point  Plastic Region  Elastic Region  Residual Strain  Failure  Safety Factor  Mechanical Energy

9 Basic Structural Analysis  Stress-Strain Curve Stress Strain Key Points on Curve  Elastic Modulus  Yield Point  Plastic Region  Elastic Region  Residual Strain  Failure  Safety Factor  Mechanical Energy

10 Basic Structural Analysis  Stress-Strain Curve Stress Strain Key Points on Curve  Elastic Modulus  Yield Point  Plastic Region  Elastic Region  Residual Strain  Failure  Safety Factor  Mechanical Energy = ½ stress * strain Area under the curve

11 Types of Materials  Elastic Linear relationship between stress & strain

12 Types of Materials  Viscoelastic Nearly all biologic tissues Manifestations of Viscoelastic Properties  Rate of Loading  Hysteresis  Creep

13 Types of Materials  Viscoelastic Nearly all biologic tissues Manifestations of Viscoelastic Properties  Rate of Loading  Hysteresis  Creep

14 Types of Materials  Viscoelastic Nearly all biologic tissues Manifestations of Viscoelastic Properties  Rate of Loading  Hysteresis  Creep

15 Types of Materials  Viscoelastic Nearly all biologic tissues Manifestations of Viscoelastic Properties  Rate of Loading  Hysteresis  Creep

16 Material Characteristics  Stiff  Compliant  Brittle

17 Review Anatomical Terms  Directional Terms Superior/Inferior Proximal/Distal Anterior/Posterior Medial/Lateral Superficial/Deep  Movement Terms Flexion/Extension Abduction/Adduction Horizontal Abduction/Hor. Adduction Internal Rotation/External Rotation Radial Deviation/Ulnar Deviation Supination/Pronation Inversion/Eversion

18 Reference Systems

19  Why?  Absolute vs Relative Absolute Reference Frame  Segments intersect in joint center & movement of segment is described with respect to that joint

20 Reference Systems  Why?  Absolute vs Relative Absolute Reference Frame Relative Reference Frame  Movement of segment described relative to adjacent segment

21 Reference Systems  Spatial Reference Frame Movement of body relative to ground Occurs in xyz directions x y z Forward (+) Backward (-) Left (+)Right (-) Up (+) Down (-)

22 Reference Systems  Cartesian Coordinate System Fixed reference point x,y and z coordinates

23 Anatomical Planes & Axes  Plane of Motion 2 dimensional flat surface  Axis point about which movement occurs perpendicular to the plane of movement  Whole Body Planes and Axes  Segmental Planes and Axes

24 Anatomical Planes

25 Planes of movement  Sagittal left/right halves Perpendicular Axis - Frontal or Mediolateral

26 Planes & Axes  Frontal Plane Anterior/posterior halves Axis - Anteroposterior or Sagittal

27 Planes & Axes  Transverse Plane Upper/lower halves Axis - Longitudinal

28 Other Planes and axes  Diagonal or Oblique plane of movement perpendicular to the plane how to find


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