The influence of intense intermittent versus moderate continuous exercise on postprandial lipemia

Abstract

INTRODUCTION:Postprandial lipemia is characterized by an increased concentration of circulating lipids after fat intake and is an independent risk factor for cardiovascular disease. Exercise is known to reduce postprandial lipemia and its negative clinical outcomes. OBJECTIVE:This study investigated the effect of intense intermittent versus moderate continuous exercise using the same energy expenditure in postprandial lipemia.MATERIALS AND METHODS:Twenty healthy men (aged 21.5±3.5 years) performed a random sequence of either rest or 500 Kcal tests separated by a minimum 48 h interval as follows: (a) no exercise (control), (b) intense intermittent exercise, or (c) moderate continuous exercise. Each test series was completed 30 min before ingestion of a high-fat meal (1 g fat/kg). Venous blood was collected before and at 1, 2, 3 and 4 hours after the high-fat meal. Postprandial lipemia was assessed using the area under the curve approach as well as a kinetic profile of mean lipid variables. Statistical significance was tested at the p≤0.05 level.RESULTS:With both statistical approaches, intense intermittent and moderate continuous exercises were both effective in reducing postprandial triglycerides; however, only intense intermittent exercise reduced the levels of postprandial very low density lipoprotein. Intense intermittent and continuous exercise produced lower levels of insulinemia using the area under the curve analysis only.CONCLUSION:Intense intermittent or continuous exercise with an energy expenditure of 500 kcal completed 30 min before ingestion of high-fat meal reduced postprandial lipid levels to different levels in physically active men. Understanding these relevant differences will enable clinicians to provide the best exercise prescription for patients.

Effect of High-Intensity Intermittent Exercise on Postprandial Plasma Triacylglycerol in Sedentary Young Women

“…Tsekouras et al (2008) demonstrated that chronic HIIE-30 reduced hepatic VLDL secretion by 35% with no changes in basal plasma VLDL clearance. Also postprandial VLDL decreased more in a single bout of HIIE-30 compared with SSE (Ferreira et al, 2011). Similar results were found by Bellou et al (2013) who found that a bout of aerobic exercise combined with HIIE reduced fasting plasma VLDL concentration in normal weight men the next day by elevating VLDL clearance.…”

Effects of an acute bout of moderate-intensity exercise on postprandial lipemia and airway inflammation

“…Timing of the exercise bout also affects the degree of attenuation of PPL. Optimum attenuation of PPL appears 13 to be delayed by 12-16 hours after exercise (29,41,103). Additionally, energy replacement after exercise diminishes the protective effect on PPL (10,35,45).…”

“…This attenuation has been shown to be dependent on energy expended during a bout of exercise, not on exercise intensity per se (29,95,96). Timing of the exercise bout also affects the degree of attenuation of PPL.…”

Acute Exercise and Postprandial Lipemia in Young People

“…More recently, acute high intensity exercise (ranging from 90% peak O V  2 to maximal sprint intensity), where the total exercise dose is probably considerably less than that reported in many of the moderate intensity exercise studies, has been shown to reduce postprandial [TAG] in healthy adults (16,18,20). It has even been suggested that this type of exercise may be more efficacious than moderate intensity exercise …”