Relationship among maximal oxygen uptake, heart rate recovery and lactate clearance rate in college students in Xinjiang
10.16835/j.cnki.1000-9817.2019.02.028
- VernacularTitle:新疆某高校大学生最大摄氧量心率恢复及乳酸消除速率的关系
- Author:
YUAN Qiubao, FAN Dandan
1
Author Information
1. Kashgar Unversity, Kashgar (844006), Xinjiang Uygur Autonomous Region, China
- Publication Type:Journal Article
- Keywords:
Oxygen consumption;
Heart rate;
Lacticacid;
Motor activity;
Minority groups;
Students
- From:
Chinese Journal of School Health
2019;40(2):259-263
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To understand the aerobic endurance level, aerobic metabolism ability and cardiovascular function recovery ability of 4 ethnic college students in Xinjiang, and to provide experimental basis for students of different ethnic groups to participate in physical exercise and sports teaching load design.
Methods:In September 2018, 80 college students of Uygur,Kazak, Tajik and Han nationalities were randomly selected, and their VO2max levels were predicted by using a 12 min running test. Blood lactic acid and heart rate levels after exercise were detected by quantitative load exercise, and the correlation among the three was analyzed. Results Male Tajik students had the highest VO2max level [(48.36±4.75)mL·(kg·min)-1], and female Uygur students had the highest VO2max level [(36.04±4.21)mL·(kg·min)-1]. After quantitative load exercise, HRR1 of male Kazak students was higher than that of male Uygur, Kazak and Han students. The blood lactic acid recovery rate of Uygur students was higher than that of Kazak students (P<0.05), and there was no significant difference between the other groups (P>0.05). The results of correlation analysis showed that HRR1 was negatively correlated with VO2max in Uygur, Tajik and Han male students (r=-0.93,-0.87,P<0.05). There was a negative correlation between HRR1 and VO2max in Uygur and Han students (r=-0.88, -0.73,-0.94,P<0.05). There was a positive correlation between blood lactic acid recovery ability and VO2max level in 4 ethnic college students except Kazak male students (male:r=0.58, 0.98, 0.77; Female:r=0.75, 0.89, 0.90, 0.94,P<0.05). Male Uygur, Tajik and Kazak (r=-0.74, -0.67, -0.81, P<0.05) and female Uygur,Tajik and Han (r= -0.98, -0.87, -0.73, P<0.05)HRR1 was negatively correlated with blood lactic acid recovery rate after exercise.
Conclusion:There are ethnic and gender differences in the aerobic metabolism, heart rate recovery and lactic acid elimination rate of the four ethnic college students in Xinjiang.
