| Children have intermittent high-intensity activity characteristics in sports,such as intermittent running,jumping,etc.But after exercise,especially after strenuous exercise,the recovery characteristics and related factors of children fail to reach a consensus due to the factors such as research and experimental conditions.In order to further clarify the short-term recovery of children after high-intensity intermittent exercise,this article selected 45 children respectively aged from 7 to 9 years old in Xi'an Waldorf Primary School.Let these subjects do high-intensity intermittent test on the basis of literature statistics and expert interviews,and we got the following test results by the grouping test of all ages:1?The heart rate recovery and subjective fatigue sensation index showed the inverted "U" characteristics in the 3 × 6m high intensity intermittent exercise,and the heart rate recovered to the quiet state within 5min after exercise.,Subjective fatigue experience index is close to pre-exercise level.2?The mean heart rate was 8.8.6 b / min and the heart rate was 86.7 b / min.7-year-old girl's average heart rate of 87.6b / min,5min after exercise heart rate average heart rate of 91.8b / min.The recovery rate of HRR was 48.1 b / min,the recovery rate was 68.5%,the mean value of HRR of 7 years old was 60.3 b / min,and the recovery rate was 68% in the 7-year-old boy's 3 × 10 m intermittent run.7-year-old boys and girls at the end of exercise 5min,heart rate recovery were restored to the quiet heart rate of 100% and 95.4%.There was no significant difference in the subjective fatigue susceptibility index between the seven-year-old boys and girls before and after the test.3?8-year-old boy's mean heart rate of 84.7b / min,5min after exercise heart rate average heart rate of 85 b / min.8-year-old girl's average heart rate of 85.7b / min,5min after exercise heart rate average heart rate of 85.8b / min.The recovery rate of HRR was 39 b / min,the recovery rate was 55.4%,the mean value of ? HRR was 38.1b / min and the recovery rate was 57.8% in 8-year-old boy 3 × 6m intermittent exercise.8-year-old boys and girls at the end of exercise 5min,heart rate recovery were restored to the quiet heart rate of 99.6% and 99.9%.There was no significant difference in subjective fatigue susceptibility index between male and female under 8 years old.4?The mean heart rate of the children aged 4 and 9 was 84 b / min,and the mean heart rate was 82.5b / min.9-year-old girl's average heart rate of 83.2b / min,5min after exercise heart rate average heart rate of 83.9b / min.The recovery rate of HRR was 70.7 b / min,the recovery rate was 71.3%,the mean value of HRR was 68 b / min and the recovery rate was 64.9% in the 9-year-old boy 3 × 6m intermittent exercise.9-year-old boys and girls at the end of exercise 5min,heart rate recovery were restored to 100% of the quiet heart rate and 99.1%.There was no significant difference in the subjective fatigue susceptibility index between the nine-year-old boys and girls before and after the test.Analysis conclusion:1?The recovery rate was the fastest and the recovery rate was the fastest at 1 min after the end of the intermittent exercise at 1 and 7 years old,and the rate of heart rate recovery was decreased at 3 min after exercise.After 5 min of exercise,the children recovered to a quiet state The2?The rate and degree of heart rate recovery were gender and age after the group of high intensity intermittent exercise in the 7 ~ 9 years old children.In general,with age,the rate of recovery of boys is slightly higher than the girls,recovery faster.3?There were no significant differences in the subjective fatigue susceptibility index between the groups at 3,7 and 9 years old during the high intensity intermittent exercise.4?7 ~ 9 years old children's psychological awareness is caused by high-intensity intermittent exercise after the heart rate recovery characteristics of the main factors. |
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