technological influences on human performance 12.1 ergonomics
TRANSCRIPT
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Technological Influences on Human Performance
12.1
Ergonomics
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Ergonomics
• study of human-factors engineering, attempts to make the interactions of humans and mechanical objects (desks, chairs, etc.) as efficient as possible and to reduce the strain placed on the user.
• An ergonomist determines how to alter a mechanical object to fit humans in general and the specific user. Many technological breakthroughs in sport are based on ergonomics.
• Many sports injuries are a result of repetitive stress (RSI) or cumulative trauma (CTD). Can you name any RSI’s?
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Hockey
• Goalie masks
http://www.youtube.com/watch?v=yMbXU4njAw4&feature=relmfu
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Football
• http://www.youtube.com/watch?v=CPr4-P19NtE
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Auto racing
• Nomex suits
• http://www.youtube.com/watch?v=YK4E9SrVTKs
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Fabrics
• Elastic
• Lycra – whole garments can be “elasticized”
• Wicking fabrics
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Evolution of the hockey stick
• http://www.youtube.com/watch?v=ONB9kJR_-wE
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Tennis Racquet
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Speed skating• Clap skate invented by
Dutch scientists
• A longer stride is achieved
• Mocked at first than in Nagano (1998) records were shattered
• Caused controversy, but the clap skate is now widely accepted
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Swimming• http://www.youtube.com/watch?v=wLBscMz3O5Y
• FINA banned all body-length swimsuits. The decision was made during the 2009 World Aquatics Championships.
• The new policy states that men's swimsuits may maximally cover the area from the waist to the knee, and women's counterparts from the shoulder to the knee.
• They also ruled that the fabric used must be a "textile" or a woven material and that a suit may not have any fastening devices such as a zipper (drawstrings on male jammers are allowed). FINA did not specify what they meant by "textile." The new regulations took effect in January 2010.
• http://www.youtube.com/watch?v=aTCA9JI5354
• Do you agree that these suits are now banned?