Chapter 4 Work, Energy, & Power
Explaining the causes of motion without Newton.
Mechanically, work is done on an object when a force causes a
change in position.
The work done on a body by a force is equal to the product of its
magnitude and the distance
Chapter 6 Angular Kinematics
Angular motion occurs about an axis of rotation
all parts of a body move through
the same angle
Angular kinetics deals with angular
Nearly all human moveme
Chapter 7 Angular Kinetics
Angular kinetics is the study of torques and their rotational effects on
Torque is the turning effect of a force exerted at a distance to an axis:
T = F r
Torque trumps force
Forces create linear movement, but
Chapter 5 Torques and Moments of Force
Moment of Force or Torque:
What causes a change in the state of linear motion of an
What causes a change in the state of angular motion of an
Angular analog of force
Centric vs. eccentric force
Linear Kinematics Chapter 2
Describing objects in motion
Forms of motion?
What information do we get
Identifying location in space
At the start of movement?
At the end of movement?
At a specific time in the midst of movement?
Instructor: Joshua Weinhandl, Ph.D.
TA: Kevin (Cody) Fontenot
My Research Interests
Injury mechanisms and risk factors
Movement coordination variability
Computer simulation of human movement
Branches of Mechanics
Rigid Body Mechanics
Chapter 1: Forces
What is a force?
Effect that one body has on another
A push or pull applied to an object
That required to change the state of motion of
an object (i.e., that which causes acceleration)
Chapter 3: Linear Kinetics
Vertical GRFs in Walking and Running
Running has higher force for a shorter duration.
less dynamic than running
forces closer to bodyweight
more similar to standing
than to running
Resistance Exercise and High Intensity Exercise as Weight Loss Methods for Overweight or Obese Adults
Jennifer R. Warner SPRING 2013 EXSC 431 22747
2 Everyone has an idea of what his or her perfect body would look like, however there are many
Group Project #4
April 28, 2013
1. There are a number of techniques available to measure body composition.
Describe at least 5 tests that are available for body fat estimation. Describe each technique
in detail and compar
Group Project #3
April 14, 2013
1. Defining Muscular Performance: As defined in the lecture notes.
Muscular Strength is the maximal force a muscle or muscle group can generate. Muscular Power
is the product of strength an