Barker Gaven A, Parten Alyssa L, Lara David A, Hannon Kensey E, McAllister Matthew J, Waldman Hunter S
Department of Kinesiology, University of North Alabama, Florence, AL 35632, USA.
Metabolic & Applied Physiology Lab, Department of Health and Human Performance, Texas State University, San Marcos, TX 78666, USA.
Muscles. 2023 Jun 8;2(2):228-237. doi: 10.3390/muscles2020017.
Strenuous exercise involving eccentric muscle actions induces skeletal muscle damage resulting in delayed onset muscle soreness (DOMS). Antioxidant supplementation, such as astaxanthin (AX), may alleviate muscle injury following intense exercise. The purpose of this study was to investigate the effect of a four-week course of AX supplementation at 12 mg/day on subjective markers of DOMS, recovery, and performance after a bout of muscle damaging eccentric exercise. Nineteen resistance-trained men (mean ± SD: age, 22.6 ± 2.2 y) completed a between-group design with a four-week supplementation period of 12 mg/day of either AX or a placebo. Subjects completed four trials, with trials One and Three designed to induce muscle damage, consisting of a one repetition maximum test (1RM) for leg-press, followed by five sets of ten repetitions at 65% of 1RM. Trials Two and Four were performance trials, conducted 48 h later and consisting of repetitions to failure at 65%, 70%, and 75% of 1RM. Subjective markers of DOMS and recovery were collected at multiple timepoints post-trial for trials One and Three. Although performance was not affected ( > 0.05), AX supplementation significantly decreased subjective markers of DOMS ( = 0.01) compared to the placebo. The results demonstrated that AX may enhance recovery by reducing DOMS without detriment to performance in resistance-trained men.
涉及离心肌肉动作的剧烈运动会导致骨骼肌损伤，进而引发延迟性肌肉酸痛（DOMS）。补充抗氧化剂，如虾青素（AX），可能会减轻高强度运动后的肌肉损伤。本研究的目的是调查连续四周每天补充12毫克AX对一组进行肌肉损伤性离心运动后的DOMS主观指标、恢复情况和运动表现的影响。19名经过抗阻训练的男性（平均±标准差：年龄，22.6±2.2岁）完成了一项组间设计，为期四周，期间每天补充12毫克AX或安慰剂。受试者完成了四项试验，试验一和试验三旨在诱导肌肉损伤，包括腿部推举的一次重复最大值测试（1RM），然后以1RM的65%进行五组，每组十次重复。试验二和试验四是运动表现试验，在48小时后进行，包括以1RM的65%、70%和75%重复至力竭。在试验一和试验三后的多个时间点收集DOMS和恢复情况的主观指标。尽管运动表现未受影响（P>0.05），但与安慰剂相比，补充AX显著降低了DOMS的主观指标（P = 0.01）。结果表明，AX可能通过减少DOMS来促进恢复，且不会损害抗阻训练男性的运动表现。
