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Enhancement of Interferon-γ Secretion by Extract Supplementation After Exhaustive Endurance Exercise in Healthy Men: A Double-blind, Placebo-controlled Trial.
Int J Med Sci
January 2025
Center for General Education, Taipei Medical University, Taipei 110301, Taiwan.
To investigate the effects of 12-week extract supplementation on immune responses and inflammatory cytokines after exhaustive endurance exercise (EEE), emphasizing its novel focus on peripheral blood mononuclear cells (PBMCs) cytokine secretion and the implications of interferon-γ (IFN-γ) as a marker for immune modulation. Twenty healthy men were recruited and assigned into maca and placebo groups using a matched-pair design based on their maximal oxygen consumption (V̇O). All participants consumed 2.
View Article and Find Full Text PDFThe Effect of Ingesting Alginate-Encapsulated Carbohydrates and Branched-Chain Amino Acids During Exercise on Performance, Gastrointestinal Symptoms, and Dental Health in Athletes.
Nutrients
December 2024
Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, Palle Juul-Jensens Boulevard 165, 8200 Aarhus, Denmark.
Background: This study aimed to compare the effects of a carbohydrate (CHO) hydrogel with (ALG-CP) or without (ALG-C) branched-chain amino acids, and a CHO-only non-hydrogel (CON), on cycling performance. The hydrogels, encapsulated in an alginate matrix, are designed to control CHO release, potentially optimising absorption, increasing substrate utilisation, and reducing gastrointestinal distress as well as carious lesions.
Methods: In a randomised, double-blinded, crossover trial, 10 trained male cyclists/triathletes completed three experimental days separated by ~6 days.
Effect of A1470T Polymorphism on Lactate and Potassium Concentrations After Caffeine Ingestion During Acute Resistance Exercise.
Nutrients
December 2024
Laboratory of Genetics of Aging and Longevity, Kazan State Medical University, 420012 Kazan, Russia.
Background: The monocarboxylate transporter 1 (MCT1) plays a crucial role in regulating lactate and pyruvate transport across cell membranes, which is essential for energy metabolism during exercise. The A1470T (rs1049434) polymorphism has been suggested to influence lactate transport, with the T (major) allele associated with greater transport efficiency. This study aimed to investigate the effect of the polymorphism on lactate and potassium (K) concentrations in response to resistance exercise (RE) following caffeine (CAF) ingestion.
View Article and Find Full Text PDFComparing the Effects of Collagen Hydrolysate and Dairy Protein on Recovery from Eccentric Exercise: A Double Blind, Placebo-Controlled Study.
Nutrients
December 2024
School of Sport, Exercise & Nutrition, College of Health, Massey University, Palmerston North 4410, New Zealand.
Background: Consuming collagen hydrolysate (CH) may improve symptoms of exercise-induced muscle damage (EIMD); however, its acute effects have not been compared to dairy protein (DP), the most commonly consumed form of protein supplement. Therefore, this study compared the effects of CH and DP on recovery from EIMD.
Methods: Thirty-three males consumed either CH ( = 11) or DP ( = 11), containing 25 g of protein, or an isoenergetic placebo ( = 11) immediately post-exercise and once daily for three days.
The effect of post-exercise heat exposure (passive heat acclimation) on endurance exercise performance: a systematic review and meta-analysis.
BMC Sports Sci Med Rehabil
January 2025
Idaho College of Osteopathic Medicine, 1401 E. Central Dr, Meridian, ID, 83642, USA.
Background: "Active" heat acclimation (exercise-in-the-heat) can improve exercise performance but the efficacy of "passive" heat acclimation using post-exercise heat exposure is unclear. Therefore, we synthesised a systematic review and meta-analysis to answer whether post-exercise heat exposure improves exercise performance.
Methods: Five databases were searched to identify studies including: (i) healthy adults; (ii) an exercise training intervention with post-exercise heat exposure via sauna or hot water immersion (treatment group); (iii) a non-heat exposure control group completing the same training; and (iv) outcomes measuring exercise performance in the heat (primary outcome), or performance in thermoneutral conditions, V̇Omax, lactate threshold, economy, heart rate, RPE, core temperature, sweat rate, and thermal sensations.
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