Kinetic Concepts for
Analyzing Human Motion
Presentation Created by
Dr. Hazrat Bilal Malakandi. PT
DPT (IPM&R, KMU)
Objectives
• Identify common units of measurement for mass,
force, weight, pressure, volume, density, specific
weight, tor...
Basic Concepts
Related to Kinetics
• Inertia
• Mass
• Force
• Center of Gravity
• Weight
• Pressure
• Volume
• Density
• S...
Common Units for
Kinetic Quantities
Quantity Symbol Metric Unit English Unit
Mass m kg slug
Force F N lb
Pressure P Pa psi...
Mechanical Loads on
the Human Body
• Compression
• Tension
• Shear
• Stress
• Torsion
• Bending
• Combined loading
The Effects of Loading
• Deformation
When an external force is applied to the human
body, several factors influence whethe...
Repetitive vs. Acute Loads
• Repetitive loading
• Acute loading
• Macrotrauma
• Microtrauma
Tools for Measuring
Kinetic Quantities
• Electromyography (EMG)
– To study neuromuscular function
• Dynamography
– Primari...
Vector Algebra
• Vector
• Kinetic vector quantities
– force weight, pressure, specific weight &
torque
• Kinematic vector ...
Vector Resolution
Vertical
Horizontal
Example: A ball is thrown into the air
Kinetic concepts for analyzing human motion
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Kinetic concepts for analyzing human motion

Published on: Mar 3, 2016
Published in: Government & Nonprofit      Technology      Business      
Source: www.slideshare.net


Transcripts - Kinetic concepts for analyzing human motion

  • 1. Kinetic Concepts for Analyzing Human Motion Presentation Created by Dr. Hazrat Bilal Malakandi. PT DPT (IPM&R, KMU)
  • 2. Objectives • Identify common units of measurement for mass, force, weight, pressure, volume, density, specific weight, torque, and impulse • Identify and describe the different types of mechanical loads that act on the human body • Identify and describe the available instrumentation for measuring kinetic quantities • Solve quantitative problem involving vector quantities using both graphic and trigonometric procedures
  • 3. Basic Concepts Related to Kinetics • Inertia • Mass • Force • Center of Gravity • Weight • Pressure • Volume • Density • Specific weight • Torque • Impulse
  • 4. Common Units for Kinetic Quantities Quantity Symbol Metric Unit English Unit Mass m kg slug Force F N lb Pressure P Pa psi Volume (solids) V m3 ft3 (liquids) liter gallon Density ρ kg/m3 lb/ft3 Specific weight γ N/m3 lb/ft3 Torque T N-m ft-lb Impulse N • s lb • s
  • 5. Mechanical Loads on the Human Body • Compression • Tension • Shear • Stress • Torsion • Bending • Combined loading
  • 6. The Effects of Loading • Deformation When an external force is applied to the human body, several factors influence whether an injury occurs – Magnitude and direction of force – Area over which force is distributed – Load-deformation curve – Yield point (elastic limit) – Failure
  • 7. Repetitive vs. Acute Loads • Repetitive loading • Acute loading • Macrotrauma • Microtrauma
  • 8. Tools for Measuring Kinetic Quantities • Electromyography (EMG) – To study neuromuscular function • Dynamography – Primarily employed in gait research – Starts, takeoffs, landings, baseball & golf swings, and balance
  • 9. Vector Algebra • Vector • Kinetic vector quantities – force weight, pressure, specific weight & torque • Kinematic vector quantities – Displacement, velocity & acceleration • Scalar quantities – Mass, volume, length & speed
  • 10. Vector Resolution Vertical Horizontal Example: A ball is thrown into the air

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