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**Introduction to Kinesiology & Biomechanics**

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Definitions Kinesiology Biomechanics

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Definitions Kinematics Kinetics

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Definitions Static Analysis Dynamics Analysis

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Definitions Anthropometrics

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**Why study biomechanics?**

Biomechanist vs Applied Biomechanist Sports Performance Ergonomics Injury Prevention Improved Rehabilitation

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**Ways to Solve Biomechanical Problems**

Qualitative vs Quantitative Scalar vs Vector Quantities

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**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

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**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

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**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

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Types of Materials Elastic Linear relationship between stress & strain

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**Types of Materials Viscoelastic Nearly all biologic tissues**

Manifestations of Viscoelastic Properties Rate of Loading Hysteresis Creep

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**Types of Materials Viscoelastic Nearly all biologic tissues**

Manifestations of Viscoelastic Properties Rate of Loading Hysteresis Creep

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**Types of Materials Viscoelastic Nearly all biologic tissues**

Manifestations of Viscoelastic Properties Rate of Loading Hysteresis Creep

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**Types of Materials Viscoelastic Nearly all biologic tissues**

Manifestations of Viscoelastic Properties Rate of Loading Hysteresis Creep

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**Material Characteristics**

Stiff Compliant Brittle

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**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

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Reference Systems

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**Reference Systems Why? Absolute vs Relative Absolute Reference Frame**

Segments intersect in joint center & movement of segment is described with respect to that joint

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**Reference Systems Why? Absolute vs Relative Absolute Reference Frame**

Relative Reference Frame Movement of segment described relative to adjacent segment

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**Reference Systems Spatial Reference Frame**

Movement of body relative to ground Occurs in xyz directions x Up (+) Forward (+) z Down (-) Backward (-) y Left (+) Right (-)

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**Reference Systems Cartesian Coordinate System Fixed reference point**

x,y and z coordinates

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**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

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Anatomical Planes

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**Planes of movement Sagittal left/right halves**

Perpendicular Axis - Frontal or Mediolateral

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**Planes & Axes Frontal Plane Anterior/posterior halves**

Axis - Anteroposterior or Sagittal

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

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**Other Planes and axes Diagonal or Oblique plane of movement**

perpendicular to the plane how to find

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