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To investigate the effect of exercise on alimentary lipernia, 6 healthy volunteers were exmained for their plasma parameters successively for 6 hr after ingestion of emulsified butter (1 g/kg body weight) with and without subsequent intermittent loading of exercise (720 kilopound meters per min for 2 min, 6 times at hourly intervals) using a bicycle ergometer.No apparent differences were found between the fat loading test and the fat and exercise loading test in the 6 hr levels of plasma chylimicron-triglyceride, lipoprotein-triglyceride and endogenous lipolytic activity measured by the usual lipoprotein lipase assay method, although the increase in plasma free fatty acids in the fat and exercise loading test was significantly greater than that in the single fat loading test. It is concluded that the intermittent muscle exercise adopted in this study has no significant influence on the triglyceride elevation after the fat loading in man.exercise; plasma triglyceride; alimentary lipemia; fat loading Plasma free fatty acids (Friedberg et al. 1963; Havel et al. 1963Havel et al. , 1964 as well as triglyceride-fatty acids (Carlson 1967;Jones and Havel 1967;Froberg 1971; Hunter et al. 1972) are known to be the main substrates for energy source in the skeletal muscle during exercise. It was demonstrated that the prolonged exercise could reduce the plasma triglyceride level in man (Carlson and Mossfeldt 1964;Young et al. 1967), thus suggesting a beneficial effect of exercise on hypertriglyceridemia and atherogenesis. However, most of the studies on the effect of exercise on lipid metabolism have been carried out on the fasting subjects, and there have been few reports about the influence of exercise on postprandial elevation of plasma chylomicron-triglyceride and lipoprotein-triglyceride levels. It is well known that plasma triglyceride increases gradually after fatty meal, reaching the peak level between 3-5 hr and returning to the fasting level between 6-9 hr after the fat ingestion (Bassett and Kuo 1963;Hollister 1963; Shah et al. 1963;Angervall 1964). The diurnal observation of plasma triglyceride in man on regular Japanese diet revealed that the periods of the postprandial triglyceride elevation reached approximately 15-18 hr during the day (Maruhama et al. 1967).
To investigate the effect of exercise on alimentary lipernia, 6 healthy volunteers were exmained for their plasma parameters successively for 6 hr after ingestion of emulsified butter (1 g/kg body weight) with and without subsequent intermittent loading of exercise (720 kilopound meters per min for 2 min, 6 times at hourly intervals) using a bicycle ergometer.No apparent differences were found between the fat loading test and the fat and exercise loading test in the 6 hr levels of plasma chylimicron-triglyceride, lipoprotein-triglyceride and endogenous lipolytic activity measured by the usual lipoprotein lipase assay method, although the increase in plasma free fatty acids in the fat and exercise loading test was significantly greater than that in the single fat loading test. It is concluded that the intermittent muscle exercise adopted in this study has no significant influence on the triglyceride elevation after the fat loading in man.exercise; plasma triglyceride; alimentary lipemia; fat loading Plasma free fatty acids (Friedberg et al. 1963; Havel et al. 1963Havel et al. , 1964 as well as triglyceride-fatty acids (Carlson 1967;Jones and Havel 1967;Froberg 1971; Hunter et al. 1972) are known to be the main substrates for energy source in the skeletal muscle during exercise. It was demonstrated that the prolonged exercise could reduce the plasma triglyceride level in man (Carlson and Mossfeldt 1964;Young et al. 1967), thus suggesting a beneficial effect of exercise on hypertriglyceridemia and atherogenesis. However, most of the studies on the effect of exercise on lipid metabolism have been carried out on the fasting subjects, and there have been few reports about the influence of exercise on postprandial elevation of plasma chylomicron-triglyceride and lipoprotein-triglyceride levels. It is well known that plasma triglyceride increases gradually after fatty meal, reaching the peak level between 3-5 hr and returning to the fasting level between 6-9 hr after the fat ingestion (Bassett and Kuo 1963;Hollister 1963; Shah et al. 1963;Angervall 1964). The diurnal observation of plasma triglyceride in man on regular Japanese diet revealed that the periods of the postprandial triglyceride elevation reached approximately 15-18 hr during the day (Maruhama et al. 1967).
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