Velasquez Carina M, Rodriguez Christian, Wohlgemuth Kealey J, Tinsley Grant M, Mota Jacob A
Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX 79409, USA.
Nutrients. 2025 May 8;17(10):1604. doi: 10.3390/nu17101604.
: Structured medium- and long-chain triglycerides (sMLCT) may be a superior vehicle for medium-chain fatty acid delivery to peripheral tissues, such as skeletal muscle. Limited information is available concerning the effect of sMLCT on muscular performance or recovery after a muscle-damaging exercise protocol. The purpose of this study was to establish the effect of a novel formulation of sMLCT on muscular performance and recovery. : Forty female adults (mean ± SD age = 22 ± 3 years; body mass index = 23.5 ± 3.4 kg/m) were randomized into one of two study groups, placebo control [CON; = 20] or sMLCT [ = 20], and completed five total visits to the laboratory. The baseline (i.e., pre-exercise) assessments of muscle performance, size, and soreness were compared to assessments immediately following exercise and 24, 48, and 72 h post-exercise. : No statistically significant condition × time interactions were noted for strength outcomes, although trends for condition × time interactions were present for torque over 25 ms ( = 0.06) and peak torque ( = 0.05). Similarly, no condition x time interactions were present for ultrasound echo intensity, the subjective ratings of soreness and pain, thigh circumference, leg volume, and vertical jump performance. : Within the context of the current study, the ingestion of sMLCT did not significantly influence the rate of muscle strength recovery following muscle damaging resistance exercise.
结构化中长链甘油三酯（sMLCT）可能是将中链脂肪酸输送到外周组织（如骨骼肌）的一种优质载体。关于sMLCT对肌肉损伤运动方案后肌肉性能或恢复的影响，目前可用信息有限。本研究的目的是确定一种新型sMLCT制剂对肌肉性能和恢复的影响。
40名成年女性（平均±标准差年龄=22±3岁；体重指数=23.5±3.4kg/m²）被随机分为两个研究组之一，即安慰剂对照组[CON；n=20]或sMLCT组[n=20]，并总共完成了5次实验室访视。将肌肉性能、大小和酸痛的基线（即运动前）评估与运动后立即以及运动后24、48和72小时的评估进行比较。
力量结果未发现统计学上显著的条件×时间交互作用，尽管在25毫秒以上的扭矩（P=0.06）和峰值扭矩（P=0.05）方面存在条件×时间交互作用的趋势。同样，超声回声强度、酸痛和疼痛的主观评分、大腿围度、腿部体积和垂直跳跃性能方面也不存在条件×时间交互作用。
在本研究的背景下，摄入sMLCT对肌肉损伤性抗阻运动后肌肉力量的恢复速度没有显著影响。
