Malate or Not? Acute Effects of L-Citrulline Versus Citrulline Malate on Neuromuscular Performance in Young, Trained Adults: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial.

IF 3 3区 医学 Q2 NUTRITION & DIETETICS International journal of sport nutrition and exercise metabolism Pub Date : 2024-12-11 Print Date: 2025-03-01 DOI:10.1123/ijsnem.2024-0006
Juan J Martín-Olmedo, Sergio Miras-Moreno, Kevin Cuadra-Montes, Amador García-Ramos, Jonatan R Ruiz, Lucas Jurado-Fasoli
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Abstract

L-citrulline (CIT) supplementation seems to improve resistance training performance; yet, whether malate has additive ergogenic effects when combined with CIT is unknown. This randomized, double-blind, placebo-controlled crossover trial aimed to compare the acute effects of CIT versus citrulline malate (CMA) supplementation on neuromuscular performance and exertion and emotional perceptions in young, trained men and women. 43 (21 women; 24.2 ± 3.7 years) participants ingested a placebo, CIT (5.3 g of CIT), or CMA (5.3 g of CIT, 2.7 g of malate) 45 min before three experimental sessions in a counterbalanced manner. We evaluated the upper and lower limb maximal neuromuscular and ballistic performance through the two-point method and countermovement jump. Strength-endurance was assessed across three sets of 10 repetitions in the squat and bench press exercises. Exertion and emotional perceptions were evaluated before and after the assessment and during the strength-endurance assessment. CIT and CMA supplementation did not enhance maximal neuromuscular performance (all p ≥ .061, ηp2≤.066), or ballistic strength (all p ≥ .348, ηp2≤.025). Neither CIT nor CMA supplementation improved strength-endurance as observed in the total number of repetitions (all p ≥ .590, ηp2≤.013), repetitions before reaching velocity loss threshold (all p ≥ .623, ηp2≤.010), mean velocity (all p ≥ .792, ηp2≤.004), mean velocity decline (all p ≥ .293, ηp2≤.029), and mean velocity maintenance (all p ≥ .393 ηp2≤.022), or exertion and emotional perceptions (both p ≥ .306, ηp2≤.028). In conclusion, CIT and CMA supplementation may not increase the neuromuscular performance during low- to moderate-volume resistance training sessions in young, trained adults. This trial was registered at ClinicalTrials.gov (No. NCT05183893).

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苹果酸还是苹果酸?l -瓜氨酸与苹果酸瓜氨酸对年轻训练成人神经肌肉功能的急性影响:一项随机、双盲、安慰剂对照交叉试验。
补充l -瓜氨酸(CIT)似乎可以提高阻力训练的表现;然而,当苹果酸盐与CIT联合使用时,是否具有累加性的人体作用尚不清楚。这项随机、双盲、安慰剂对照的交叉试验旨在比较CIT与补充瓜氨酸苹果酸(CMA)对年轻、训练有素的男性和女性神经肌肉表现、运动和情绪感知的急性影响。43人(女性21人;24.2±3.7年)的参与者在三个实验前45分钟以平衡方式摄入安慰剂、CIT (5.3 g CIT)或CMA (5.3 g CIT, 2.7 g苹果酸)。我们通过两点法和反向跳跃来评估上肢和下肢最大神经肌肉和弹道性能。在深蹲和卧推练习中,通过三组每组10次的重复来评估力量耐力。在力量-耐力测试前、测试后和测试过程中分别对运动强度和情绪感知进行评估。CIT和CMA的补充没有提高最大神经肌肉性能(均p≥0.061,ηp2≤0.066)或弹道强度(均p≥0.348,ηp2≤0.025)。CIT和CMA补充均未改善力量耐力,观察到总重复次数(均p≥0.590,ηp2≤0.013)、达到速度损失阈值前的重复次数(均p≥0.623,ηp2≤0.010)、平均速度(均p≥0.792,ηp2≤0.004)、平均速度下降(均p≥0.293,ηp2≤0.029)和平均速度维持(均p≥0.393,ηp2≤0.022),或运动和情绪感知(均p≥0.306,ηp2≤0.028)。综上所述,CIT和CMA的补充可能不会增加年轻、受过训练的成年人在低至中量阻力训练期间的神经肌肉表现。该试验已在ClinicalTrials.gov注册(编号:NCT05183893)。
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来源期刊
CiteScore
5.00
自引率
8.00%
发文量
50
审稿时长
6-12 weeks
期刊介绍: The International Journal of Sport Nutrition and Exercise Metabolism (IJSNEM) publishes original scientific investigations and scholarly reviews offering new insights into sport nutrition and exercise metabolism, as well as articles focusing on the application of the principles of biochemistry, physiology, and nutrition to sport and exercise. The journal also offers editorials, digests of related articles from other fields, research notes, and reviews of books, videos, and other media releases. To subscribe to either the print or e-version of IJSNEM, press the Subscribe or Renew button at the top of your screen.
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