Lipid Metabolism for Exercise Prescription
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.6 Vol.6】
Lipid metabolism for exercise prescription was studied from view point of changes in fatty acid composition of various lipids by using human beings and animals (rats and guinea pigs). Obtained results were as follows:
1) Unsaturation of fatty acid composition of serum triglyceride was significantly observed at one day after 38 km walking. Changes in fatty acid composition of triglyceride and free fatty acids were greater than those in 5 min. run. Then, amount of exercise which mobilize much free fatty acid seems to have a possibility to cause changes in lipid metabolism for exercise prescription.
2) During repetitive swimmings of the rats, there were antagonistic motions in fatty acid composition of serum, liver and skeletal muscle triglycerides and adipose tissue free fatty acid and total phospholipids between palmitic acid (C₁₆) and oleic acid (C₁₈₌₁) or linoleic acid (C₁₈₌₂). Linoleic acid composition of cardiolipin in heart muscle remarkably increased with number of repetitive swimmings. Then, biochemical changes in cellular component lipids by the swimming were obtained. However, there was not any changes in fatty acid composition of phos-phatidylethanolamine (PE) and phosphatidylcholine (PC).
3) In perfused heart, addition of various fatty acids (C₁₄, C₁₆, C₁₈, C₁₈₌₁, C₁₈₌₂) caused arrhythmia based on sinus node by increase of each concentration and competitive actions of these fatty acids should be considered to make clear physiological functions of the heart.
From these results, changes in fatty acid composition of each lipid would be a indicator to evaluate lipid metabolism, metabolic improvement in the living body, and make it possible for changes in biochemical cellular component lipids to physiological functions.
DESCENTE SPORTS SCIENCE Vol.6/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
1) Unsaturation of fatty acid composition of serum triglyceride was significantly observed at one day after 38 km walking. Changes in fatty acid composition of triglyceride and free fatty acids were greater than those in 5 min. run. Then, amount of exercise which mobilize much free fatty acid seems to have a possibility to cause changes in lipid metabolism for exercise prescription.
2) During repetitive swimmings of the rats, there were antagonistic motions in fatty acid composition of serum, liver and skeletal muscle triglycerides and adipose tissue free fatty acid and total phospholipids between palmitic acid (C₁₆) and oleic acid (C₁₈₌₁) or linoleic acid (C₁₈₌₂). Linoleic acid composition of cardiolipin in heart muscle remarkably increased with number of repetitive swimmings. Then, biochemical changes in cellular component lipids by the swimming were obtained. However, there was not any changes in fatty acid composition of phos-phatidylethanolamine (PE) and phosphatidylcholine (PC).
3) In perfused heart, addition of various fatty acids (C₁₄, C₁₆, C₁₈, C₁₈₌₁, C₁₈₌₂) caused arrhythmia based on sinus node by increase of each concentration and competitive actions of these fatty acids should be considered to make clear physiological functions of the heart.
From these results, changes in fatty acid composition of each lipid would be a indicator to evaluate lipid metabolism, metabolic improvement in the living body, and make it possible for changes in biochemical cellular component lipids to physiological functions.
DESCENTE SPORTS SCIENCE Vol.6/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Suketune Iwagaki*1, Masatoshi Kazami*1, Masayuki Watanabe*2, Keizo Kobayashi*3 |
|---|---|
| University or institution | *1 Tokai University, *2 Department of Exercise Physiology, Tokyo Gakugei University, *3 Department of Physiology, Jikei University School of Medicine |
Keywords
Lipid metabolism, exercise prescription, triglyceride, walking, repetitive swimmings, cellular component lipids, perfused heart, fatty acid composition