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Randomized Controlled Trial
. 2018 Apr 16;10(4):492.
doi: 10.3390/nu10040492.

High-Intensity Intermittent Exercise Increases Fat Oxidation Rate and Reduces Postprandial Triglyceride Concentrations

Tsung-Jen Yang  1 , Ching-Lin Wu  2 , Chih-Hui Chiu  3
Affiliations
Randomized Controlled Trial

High-Intensity Intermittent Exercise Increases Fat Oxidation Rate and Reduces Postprandial Triglyceride Concentrations

Tsung-Jen Yang et al. Nutrients. .

Abstract

(1) Background: This study investigated the effect of acute barehanded whole body high-intensity intermittent exercise (HIIE) and moderate intensity and continuous exercise (MICE) at the same quantity of energy expenditure on postprandial triglyceride (TG) concentrations. (2) Methods: Nine healthy males completed three trials (HIIE, MICE and control (CON)) in a random order separated by at least 14 days. After each intervention, the participants rested for 12 h and consumed a high-fat test meal on the next day. The blood samples and respiratory exchange ratio were observed in the fasted state and for 4 h after consuming the test meal. (3) Results: The HIIE had a significantly higher area under the curve of postprandial fat oxidation rate than MICE (p = 0.027) and CON (p = 0.035) and exhibited significantly lower postprandial TG concentration than the MICE and CON at 2 and 4 h after the test meal. Moreover, the HIIE displayed a higher postprandial TG concentration area under the curve than MICE (p = 0.013) and CON (p = 0.048). (4) Conclusions: The present study concluded that acute barehanded whole body HIIE could significantly lower postprandial TG concentrations. It possibly can induce a rise in the postprandial fat oxidation rate.

Keywords: cardiovascular disease; creatine kinase; energy expenditure; respiratory exchange ratio.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The postprandial fat oxidation rates over the 4 h (a) and the fat oxidation AUC (area under the curve) (b). # The HIIE trial was significantly higher than the MICE trial (p = 0.027) and the CON trial (p = 0.035).
Figure 2
Figure 2
Plasma triglyceride (TG) concentrations over the 4 h during the postprandial period (a) and TG AUC (b). # Mean HIIE was significantly lower than MICE and CON after the high fat meal (p < 0.05). * Mean HIIE significantly was higher than CON (p = 0.028).
Figure 3
Figure 3
Plasma glycerol concentrations (a) and plasma NEFA concentrations (b) during the 4-h postprandial period. There were no significant differences between trials after a high fat meal.
Figure 4
Figure 4
The plasma concentrations of CK (a) and CK AUC (b). # Mean HIIE significantly higher than the MICE trial and the CON trial (p < 0.05). * Mean HIIE significantly higher than CON (p < 0.05).
See this image and copyright information in PMC

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