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Influence of long-term aerobic exercise sports on microcirculation function and maximum oxygen uptake on the lower limbs of college studentsChinese Full TextEnglish Full Text (MT)

YANG Mei;ZHU Huan;XIAO Jiewen;PENG Yong;ZHANG Hui;Physical Education College of Hubei Minzu University;

Abstract: Objective To explore the effect of long-term aerobic exercise on microcirculation function and VO2 max of college students, and to explore the relationship between microcirculation function and VO2 max. Methods Seventy sports major college students were selected as the exercise group, 70 sedentary non-sports major students were selected as the control group. PF6000 dual-channel laser Doppler blood flow detector was used to assess the skin microcirculation function on the quadriceps femoris muscle of the subjects’ right lower limbs.The PFT Ergo cardiopulmonary function test system and the equipped power bicycle were used to measure the VO2 max of the subjects. Results The baseline value of MBP in the exercise group was significantly lower than that in the control group(6.5±1.8 vs. 8.1±2.5), but the microvascular reactivity(1 666.3±588.6 vs. 1 165.2±407.1) was significantly higher than that in the control group(t=-3.42,4.46,P<0.01). The absolute value of VO2 max(2 684.8±451.1 vs. 2 474.4±423.5) and relative value(42.7±4.3 vs. 35.1±4.8) in exercise group were significantly higher than those in control group(t=2.16,3.25,P<0.01). Multiple regression showed that there was a positive correlation between microvascular reactivity and VO2 max(relative value)(β=0.40, P=0.03), but no significant correlation between percutaneous oxygen partial pressure and VO2 max(relative value)(β=0.23, P=0.19). Conclusion Long-term physical exercise can decrease microcirculation perfusion volume, improve microvascular reactivity, percutaneous oxygen partial pressure among college students. Improvement of the microvascular reactivity may be a sport improving VO2 max(relative) one of the most important peripheral physiological mechanism.
  • DOI:

    10.16835/j.cnki.1000-9817.2021.07.010

  • Series:

    (E) Medicine & Public Health; (H) Education & Social Sciences

  • Subject:

    Physical Education

  • Classification Code:

    G807.4

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