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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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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 y z Forward (+) Backward (-) Left (+)Right (-) Up (+) Down (-)

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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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