The Effect of Alginate Encapsulated Plant-Based Carbohydrate and Protein Supplementation on Recovery and Subsequent Performance in Athletes.

Autor: Nielsen LLK; Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark., Lambert MNT; Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark., Haubek D; Municipal Dental Service, Jammerbugt Municipality, Kattedamsvej 34, 9440 Aabybro, Denmark., Bastani NE; Department of Nutrition, Division of Molecular Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway., Skålhegg BS; Department of Nutrition, Division of Molecular Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway., Overgaard K; Department of Public Health, Section of Sport Science, Aarhus University, Dalgas Avenue 4, 8000 Aarhus, Denmark., Jensen J; Department of Physical Performance, Norwegian School of Sports Sciences, 0863 Oslo, Norway., Jeppesen PB; Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark.
Jazyk: angličtina
Zdroj: Nutrients [Nutrients] 2024 Jan 31; Vol. 16 (3). Date of Electronic Publication: 2024 Jan 31.
DOI: 10.3390/nu16030413
Abstrakt: The main purpose of this study was to investigate the effect of a novel alginate-encapsulated carbohydrate-protein (CHO-PRO ratio 2:1) supplement (ALG) on cycling performance. The ALG, designed to control the release of nutrients, was compared to an isocaloric carbohydrate-only control (CON). Alginate encapsulation of CHOs has the potential to reduce the risk of carious lesions.
Methods: In a randomised cross-over clinical trial, 14 men completed a preliminary test over 2 experimental days separated by ~6 days. An experimental day consisted of an exercise bout (EX1) of cycling until exhaustion at W ~73% , followed by 5 h of recovery and a subsequent time-to-exhaustion (TTE) performance test at W ~65% . Subjects ingested either ALG (0.8 g CHO/kg/hr + 0.4 g PRO/kg/hr) or CON (1.2 g CHO/kg/hr) during the first 2 h of recovery.
Results: Participants cycled on average 75.2 ± 5.9 min during EX1. Levels of plasma branched-chain amino acids decreased significantly after EX1, and increased significantly with the intake of ALG during the recovery period. During recovery, a significantly higher plasma insulin and glucose response was observed after intake of CON compared to ALG. Intake of ALG increased plasma glucagon, free fatty acids, and glycerol significantly. No differences were found in the TTE between the supplements ( p = 0.13) nor in the pH of the subjects' saliva.
Conclusions: During the ALG supplement, plasma amino acids remained elevated during the recovery. Despite the 1/3 less CHO intake with ALG compared to CON, the TTE performance was similar after intake of either supplement.
Databáze: MEDLINE