Intro to Biomechanics and Kinematics

Question 1

Definition of biomechanics

Answer 1

The application of mechanics to the study of living systems

Question 2

What are mechanics?

Answer 2

Classified into three categories:

• Kinematics: defining movement without reference to the forces that cause the movement
• Kinetics: An analysis of the forces that cause movement
• Energetics: Applying concepts of work, energy and power to human movement

Question 3

Kinematic Measures

Answer 3

Time (seconds)
Displacement (m)
Velocity (m/s)
Acceleration (m/s^2)

Question 4

Angular Kinematics

Answer 4

This is how people move (and all other vertebrate animals)

• Time
• Angular Displacement (degrees or radians)
• Angular Velocity (degrees/s or radians/s)
• Angular Acceleration (degrees/s^2 or radians/s^2)

Question 5

Average Angular Velocity

Answer 5

(Pheta2 - Pheta1) / (t2-t1)

Question 6

Average velocity

Answer 6

• Can either be deltaV/deltaT
• Or (V1+V2)/2
• So when we start at rest V1=0 and therefore V2= 2*averageV

Question 7

Projectile Motion

Answer 7

dy = v1*t + 1/2(gt^2)