■本研究旨在通过一套全面的参数研究单次和重复轻度高压氧治疗(MHOT)对自行车运动引起的肌肉疲劳的时序恢复效果。
■本研究采用了一种控制交叉设计,涉及12名中国二级国家级男子运动员。每位参与者在六天内完成了两项相同的试验。每个试验包括90分钟的自行车运动,然后进行对照(CON)干预(1atm绝对值(ATA),20.9%氧气,60分钟)或MHOT干预(1.25ATA,26%-28%氧气,60分钟)。各种生理参数,包括感知锻炼等级(RPE),心率(HR)外周血氧饱和度(SpO2),灌注指数(PI%),肌酸激酶(CK),乳酸脱氢酶(LDH),乳酸(LA),血尿素氮(BUN),超氧化物歧化酶(SOD),丙二醛(MDA),在整个试验中在六个不同的时间点测量站立跳远距离(SLJ)。
■RPE显示,与CON组相比,MHOT组的主观疲劳减少(P<0.05)。此外,与CON组相比,MHOT的HR和PI%恢复更快(P<0.05)。关于CK,洛杉矶,BUN,SOD,和MDA水平,MHOT组在6次干预后和6次干预后24小时表现出加速恢复,与CON组相比有显著改善(P<0.05)。然而,在SpO2、LDH、SLJ
■MHOT的单次和重复疗程均显示出在缓解肌肉疲劳后的主观疲劳和促进心率和血液灌注恢复方面的功效,确保并行结构和效果的一致性。重复的MHOT会话(六次)显示与肌肉损伤相关的血液标志物水平显着降低,代谢物,和氧化应激。然而,单一MHOT干预的影响不那么明显.
UNASSIGNED: This study aimed to investigate the timing sequence recovery effects of single and repeated Mild Hyperbaric Oxygen Therapy (MHOT) on muscle fatigue induced by cycling exercise through a comprehensive set of parameters.
UNASSIGNED: This study employed a controlled crossover design involving 12 Chinese secondary national-level male athletes. Each participant completed two identical trials over six days. Each trial consisted of a 90-min cycling exercise followed by either a Control (CON) intervention (1 atm absolute (ATA), 20.9 % oxygen, 60 min) or MHOT intervention (1.25 ATA, 26%-28 % oxygen, 60 min). Various physiological parameters including Rating of Perceived Exertion (RPE), Heart Rate (HR), Peripheral Oxygen Saturation (SpO2), Perfusion Index (PI%), Creatine Kinase (CK), Lactate Dehydrogenase (LDH), Lactic Acid (LA), Blood Urea Nitrogen (BUN), Superoxide Dismutase (SOD), Malondialdehyde (MDA), and Standing Long Jump Distance (SLJ) were measured at six different time points throughout the trials.
UNASSIGNED: RPE revealed that the MHOT group experienced reduced subjective fatigue in comparison to the CON group (P < 0.05). Additionally, MHOT demonstrated quicker recovery in HR and PI% compared to the CON group (P < 0.05). Regarding CK, LA, BUN, SOD, and MDA levels, the MHOT group exhibited accelerated recovery post-6 intervention and at the 24-h mark after six interventions, showing significant improvement over the CON group (P < 0.05). However, no notable disparity was observed between groups concerning SpO2, LDH, and SLJ.
UNASSIGNED: Both single and repeated sessions of MHOT demonstrated efficacy in alleviating subjective fatigue and promoting recovery of heart rate and blood perfusion following muscle fatigue, ensuring parallel structure and consistency in their effects. Repeated MHOT sessions (six times) exhibit a significant reduction in levels of blood markers associated with muscle damage, metabolites, and oxidative stress. However, the impact of a single MHOT intervention was less pronounced.