Peng Yong, Meng Liang, Zhu Huan, Wan Li, Chen Fen
School of Physical Education, Hubei Minzu University, Enshi, China.
Graduate Schools, Moscow State Academy of Physical Culture, Malakhovka, Russia.
Front Genet. 2022 Jun 1;13:901862. doi: 10.3389/fgene.2022.901862. eCollection 2022.
To explore the effect of normobaric oxygen inhalation intervention on microcirculatory blood flow of college students after exercise and the impact of the elimination of exercise-induced fatigue, to provide a theoretical and methodological reference for the rapid elimination of fatigue of college students after endurance exercise. Forty-eight male non-sports majors of Hubei University for nationalities were randomly divided into the control group (n = 24) and intervention group (n = 24). The subjects in both groups completed the same exercise program twice (running 3,000 m on the treadmill at maximum speed). After running, the issues in the intervention group inhaled portable oxygen for 30 min, and the control group recovered naturally. Microcirculatory blood flow (MBP), blood flow velocity (AVBC), blood flow concentration (CMBC), muscle oxygen saturation (SmO2), heart rate (HR), blood lactic acid (BLA), blood urea (BU), and creatine kinase (CK) were measured before exercise, immediately after exercise and 30 min after exercise. 1) MBP and AVBC had interaction between groups and time before and after exercise, MBP and AVBC immediately after exercise in the intervention group were significantly higher than those before exercise and 30 min after exercise, and 30 min after exercise in the intervention group were significantly higher than those in the control group. 2) SmO2, HR, BLA, BU, and CK had interaction between groups and time, and SmO2 immediately after exercise in the intervention group was significantly lower than that before exercise and 30 min after exercise, but significantly higher than that in the control group at 30 min after exercise. The HR and BLA immediately after exercise in the intervention group were significantly higher than those before exercise and 30 min after exercise, but significantly lower than those in the control group at 30 min after exercise, and the BU and CK in the intervention group were significantly higher than those before exercise, but significantly lower than those in the control group at 30 min after exercise. Normobaric oxygen inhalation for 30 min after exercise can delay the decrease of microcirculatory blood flow, increase muscle oxygen saturation, and promote the recovery of heart rate, blood lactic acid, blood urea and creatine kinase. Therefore, normobaric oxygen inhalation for 30 min after exercise can be used as an effective means to promote the elimination of exercise-induced fatigue after endurance running.
为探讨常压吸氧干预对大学生运动后微循环血流量的影响及对运动性疲劳消除的作用，为耐力运动后大学生疲劳的快速消除提供理论与方法参考。选取湖北民族大学48名男性非体育专业学生，随机分为对照组（n = 24）和干预组（n = 24）。两组受试者均完成相同的运动方案2次（在跑步机上以最大速度跑3000米）。运动后，干预组受试者吸入便携式氧气30分钟，对照组自然恢复。分别于运动前、运动后即刻、运动后30分钟测量微循环血流量（MBP）、血流速度（AVBC）、血流浓度（CMBC）、肌肉氧饱和度（SmO2）、心率（HR）、血乳酸（BLA）、血尿素（BU）和肌酸激酶（CK）。1）MBP和AVBC在运动前后组间与时间存在交互作用，干预组运动后即刻的MBP和AVBC显著高于运动前及运动后30分钟，且干预组运动后30分钟显著高于对照组。2）SmO2、HR、BLA、BU和CK在组间与时间存在交互作用，干预组运动后即刻的SmO2显著低于运动前及运动后30分钟，但运动后30分钟显著高于对照组。干预组运动后即刻的HR和BLA显著高于运动前及运动后30分钟，但运动后30分钟显著低于对照组，干预组的BU和CK显著高于运动前，但运动后30分钟显著低于对照组。运动后常压吸氧30分钟可延缓微循环血流量下降，提高肌肉氧饱和度，促进心率、血乳酸、血尿素和肌酸激酶的恢复。因此，运动后常压吸氧30分钟可作为促进耐力跑后运动性疲劳消除的有效手段。
