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Transcript of Biomechanics Intro
"study of the actions of forces"
applies the analysis of the actions of forces in the context of the anatomical and functional capabilities of the human body
systems at rest or in a constant state of motion
systems where acceleration is present
study of the forces associated with motion
what we can observe when watching a body in motion
no reference to the forces causing it
what is biomechanics used to study or treat?
effect of form on performance
doesn't always indicate success...
gold medal in 5000m, 10000m, and marathon in the same week at 1952 Olympics
called "Emil the Terrible" and "the bouncing Czech" because of his running form
maintaining bone and muscle in zero gravity
mobility in the elderly
occupational safety & ergonomics
1989 Tour de France - 8 seconds
"non-textile" suits banned after 168 world records broken
approaches to problem solving
words, not numbers
numbers are involved
the more specific, the better
solving qualitative problems:
1. form a question about the movement
can be general or specific
2. collect data
usually visual observation or video
plan optimal distance and perspective for observation
multiple views may be necessary
3. analyze data
(more on this in the next topic)
formal quantitative problems have 3 characteristics:
1. set of given information
2. a particular answer or goal
3. a set of operations/processes that can use the info to find the answer
solving quantitative problems:
1. read the problem CAREFULLY
2. make a list of the info provided
3. write down specifically what you are trying to solve
4. draw a diagram of the problem
5. write down useful formulas
6. pick appropriate formulas and substitute in the given info
7. solve formulas for desired answer
put what you're looking for on one side of the "equal" sign all by itself
8. do a common sense check of your answer
this is the only "discipline-specific" info you need to solve ANY qualitative problem