|
|
|
|
|
|
|
|
|
|
|
|
|
|
• |
At
rest, muscles provide 18% of total heat
|
|
|
• |
Voluntary
exercise- heat production increased 10
|
|
|
times
|
|
|
• |
Involuntary
exercise- shivering
|
|
|
|
– |
heat
production increased 4-5 times
|
|
|
|
– |
but
90% of heat produced by shivering lost by
|
|
|
convection
because of body movements
|
|
|
• |
Non-shivering
thermogenesis
|
|
|
|
– |
Metabolism/hormones
of body adjust and increase heat
|
|
production
|
|