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dmcfarlane
03-02-2006, 02:56 PM
Dear all,

When I studied physiology at uni (back in the mid 70s!) we were told
that adrenalin could increase the strength and endurance of muscles by
increasing the blood flow to the larger voluntary muscles.

In many media tales of earthquakes we hear about people who perform
almost superhuman feats when lifting masonry off buried loved ones. One
sometimes hears similar anecdotes concerning the children or parents
from crushed or overturned cars. Does an adrenalin rush really increase
muscle strength dramatically? Has anyone published any research on this?

Woodchoppers perform astonishing rates of work when competing for a
prize. Can excitement and competition be helpful at work if it gets the
adrenalin pumping? Is sort of thing sustainable in real-life work
situations? And, if so, is that a good thing?

Regards,

David McFarlane
Ergonomist,
WorkCover Authority of New South Wales

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