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EFFECTS OF ACUTE L-CARNITINE SUPPLEMENTATION DURING LOW-INTENSITY TREADMILL EXERCISE

Abstract

C. Snoke, G. Agnesse, K. Boles, J. Daniels, A. Holum, J. McKenzie

Gonzaga University, Spokane, WA

PURPOSE: The effectiveness of L-carnitine supplementation has been debated throughout research as an aid to increased fat metabolism and weight loss. The purpose of this study is to evaluate the effectiveness of acute L-carnitine supplementation in humans as an aid in lipid metabolism during low-intensity treadmill exercise. METHODS: In this study, participants will complete two separate sessions of treadmill exercise after consuming either 3g of L-carnitine or placebo (consumed with Gatorade Zero) one hour prior to exercise. After this, participant Respiratory Exchange Ratio (RER) and Volume of Oxygen consumed (VO2) will be collected with the Parvo-Medics metabolic cart while the participant completes 33 minutes of treadmill exercise at 3.1 mph and 1% grade. RER values will be converted to kilocalories (kcal) of fat using a Zuntz table. RESULTS: Microsoft Excel and IBM SPSS will be used for data analysis. A paired-samples t-test and independent samples t-test will be utilized to compare placebo and treatment conditions. CONCLUSION: If our proposed population of 30 participants was utilized for this experiment, we may find that acute L-carnitine supplementation does not significantly increase fat burning during exercise. This may be due to many participants having sufficient carnitine levels in the body. Therefore, L-carnitine supplementation is likely not an effective aid in weight loss.

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