Fluid Containing Highly Branched Cyclic Dextrin: An Alternative Ergogenic Aid to Enhance Endurance Exercise Performance in Long-Distance Runners.

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From: Journal of Exercise Physiology Online(Vol. 25, Issue 4)
Publisher: American Society of Exercise Physiologists
Document Type: Clinical report
Length: 4,526 words
Lexile Measure: 1520L

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Abstract :

Chuychai J, Srihirun K, Chinapong S, Sanpasitt C, Khaosanit P, Nokkaew N. Fluid Containing Highly Branched Cyclic Dextrin: An Alternative Ergogenic Aid to Enhance Endurance Exercise Performance in Long-Distance Runners. JEPonline 2022;25(4):1-13. Thirteen male marathon runners completed the randomized, double-blind, and crossover study to investigate the effects of the highly branched cyclic dextrin (HBCD) and glucose-containing beverages (GLUC) on running endurance capacity. Thirty minutes before each time to exhaustion (TTE) test, participants ingested 500 mL of either 1.5 g*[kg.sup.-1] BW of HBCD or glucose. The TTE consisted of a 3-minute warm-up, a 30-minute run at the velocity at VT1 and running at the velocity at VT2 until exhaustion to determine the endurance capacity, as well as blood glucose and lactate concentration, HR, RPE, and fluid loss. There was no significant difference in the interaction effect for blood glucose and lactate concentration, HR, and RPE between HBCD and GLUC over the period of trials. HBCD ingestion prior to exercise resulted in longer TTE than GLUC (42.67 [+ or -] 4.92 vs. 40.77 [+ or -] 4.40 minutes, P = 0.02) and less body fluid loss than GLUC (0.28 [+ or -] 0.18 vs. 0.50 [+ or -] 0.32 kg, P = 0.04). In conclusion, an HBCD beverage ingestion may help to maintain fluid loss more effectively than consuming an isocaloric glucose beverage, resulting in improved endurance performance. Key Words: Endurance Performance, Highly Branched Cyclic Dextrin, Sport Drinks, Marathon Runner

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Gale Document Number: GALE|A713972285