Introduction: Why Study Biomechanics

Objectives:
Define biomechanics
  • Define exercise and sport biomechanics
  • Identify the goals of exercise and sports biomechanics
  • Describe the methods used to achieve the goals of exercise and sport biomechanics
  • Be somewhat familiar with the history and development of exercise and sports biomechanics
  • Define mechanics
  • Outline the organization of mechanics
  • Define length and the units of measurement for length
  • Define time and the units of measurement for time
  • Define mass and the units of measurement for mass

What is biomechanics?
The study of forces and their effects on living systems

Why is biomechanics important to Exercise Science majors and minors?

Technique improvement

  • Dick Fosbury
    7' 4 1/4'
  • Dwight Phillips
  • Gymnast

Equipment improvement or unimprovement

  • Cycling
  • Javelin
    Mick Hill
  • Tennis
  • Pole vault

Improved training and accelerated learning

  • Pole Vault
  • Ice Skating

Injury prevention and rehabilitation

  • Tennis Elbow


What will we learn in Kinesiology and Biomechanics???

  • Kinetics and kinematics
  • Fluid mechanics
  • Qualitative anyalsis

The organization of mechanics
Mechanics Flowchart

Rigid Body Flowchart

Units of Measurement
Quantity Symbol SI Unit Abbreviation for SI Unit Other Units
Time t second s millisecond, minute, hour, day, week, year
Length l meter m millimeter, centimeter, inch, foot, yard, kilometer, mile
Mass m kilogram kg gram, slug
Force F Newton N pound


Mass is the measure of inertia, whereas weight is the measure of the force of gravity acting on an object.

Distance from earth to sun: 93 million mi, 150 million km, or 5,905,511,811,024 in
My height: 5'10", 1.78 m, or 0.00000000000000019 lightyears
Mass of earth: 5.98x10^24 kg

Numerography

Einstein confused

Converting units
What is your weight?
1lb = 4.45N
What is your mass?
1sl = 14.6kg

Google converter: "165 pounds to N"