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目的:探讨定量负荷运动对血液胃肠激素的影响。方法:9名体育学院健康男性大学生,进行哈佛台阶定量负荷运动,测定其运动前安静时及负荷Ⅰ、Ⅱ、Ⅲ后即刻心率和主观体力感觉等级,及其安静及定量负荷后即刻、10min、30min和60min血清胃泌素(GAS)、血浆胰高糖素(GLU)和血管活性肠肽(VIP)水平的变化。结果:本实验采用的运动负荷介于近极量强度与亚极量强度之间,运动后产生明显的疲劳症状。定量负荷运动后10min,血清GAS浓度较安静时显著升高(P<0·05),运动后60min基本恢复至安静水平;运动后30min血浆GLU浓度较安静时显著升高(P<0·05),运动后60min仍未恢复到安静水平;定量负荷后即刻血浆VIP浓度较安静时明显升高,运动后60min仍处于较高水平,但运动后各时点值与安静值比较均无统计学意义。上述结果提示定量负荷运动对血液胃肠激素含量有一定的影响。
Objective: To investigate the effect of quantitative exercise on blood gastrointestinal hormones. Methods: Nine male college majors from the Institute of Physical Education conducted the Harvard step quantitative load exercise. The heart rate and subjective physical sensory rating immediately after exercise were measured before exercise, and immediately after exercise for 10 minutes, 30min and 60min serum gastrin (GAS), plasma glucagon (GLU) and vasoactive intestinal peptide (VIP) levels. Results: The exercise load used in this experiment ranged from proximal to proximal intensity and sub-polar intensity, and produced obvious fatigue symptoms after exercise. Serum GAS concentration was significantly increased at 10 min after exercise (P <0.05), and returned to a resting level at 60 min after exercise. Plasma GLU concentrations at 30 min after exercise were significantly higher than those at rest (P <0.05) ). After 60 minutes of exercise, the level of VIP was not restored to the resting level immediately after the exercise. The plasma VIP level immediately after the quantitative load was significantly higher than that at rest, and remained at a high level at 60 minutes after exercise, but there was no statistical difference between the time points after exercise and the resting value significance. The above results suggest that the exercise of quantitative load on the blood gastrointestinal hormone have a certain impact.