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Nutrition and exercise

Nutrition and Exercise


Definition of Terms

Food Fallacy     A pronouncement on false reasoning or choice of food based on erroneous concepts of food. ...      Animal glycogen

Carbohydrate Balance in Exercise
*dependent on
          -duration and intensity
          -fitness and nutritional status
*intense exercise
          -blood glucose
          -muscle glycogen
*moderate to prolonged exercise
     -transition from rest to exercise glycogen
     -50-50 CHO and FAT around the 20-min. ...      Unsaturated Fatty Acids
-monounsaturated
-polyunsaturated
-hydrogenation – changes unsaturated fatty acid to saturated fatty acid
-formation of trans unsaturated fatty acid


*fish oils
-omega-3 fatty acids (tuna, sardines, mackerel, herring)
*linoleic acid
     -essential fatty acid


Lipid Balance in Exercise
*light and moderate exercise = 50%
*prolonged exercise = 70-80%



Role of Lipid

1. ... 83g per kg of body mass

Pregnant = 20g per kg of body mass
Nursing = 10g per kg of body mass
Infants and growing children = 2g per kg of body mass
Endurance and strength athletes = requires further research*


Kinds and Sources

Essential Amino Acids

Non-Essential Amino Acids

---

Complete Proteins – contains all 8 essential amino acids

Incomplete Proteins – lack 1 or more


Protein Balance In Exercise

     *prolonged exercise – alanine used in gluconeogenesis (alanine-glucose cycle)
     *40-50% of total glucose released
     *protein catabolism increases when CHO stores are low
     *amino acid supplements – not been shown to increase muscle mass or improve strength, endurance or power


General Role of Protein [not in transparencies]

1.


Approximate Word count = 923
Approximate Pages = 3.7
(250 words per page double spaced)
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