作为一名从事青少儿田径业余训练的教练员,工作中最大的难点是训练对象的不可控性。他们除在放学后来体校进行大约一个半小时的业余训练外,对其他情况了解掌握甚少,如文化课的学习、作息时间、营养及家庭状况等等。因此,在训练工作中很难把握好运动负荷对每位青少儿的刺激深度。又由于受客观条件的限制,目前我们还无法采用仪器设备来对运动负荷进行综合的监测和评定。所以,选择和采用能对运动负荷进行简单而实效的监测手段和评定标准,则成了影响我们能否顺利完成训练任务的重要因素之一。 心率是指一分钟心脏跳动的次数。心率与 As a trainer engaged in youth track and field amateur training, the biggest difficulty in the work is the uncontrollable nature of the training target. Apart from going to school for about an hour and a half after school, they know little about other situations such as study of culture classes, work schedules, nutrition and family conditions, and so on. Therefore, it is very difficult to grasp the stimulus depth of exercise load for every teenager in training work. Due to the restriction of objective conditions, at present, we can not use the equipment to monitor and evaluate the exercise load comprehensively. Therefore, the selection and adoption of simple and effective monitoring means and assessment standards for exercise load have become one of the important factors that affect whether we can successfully complete the training task. Heart rate is the number of beats in a minute. Heart rate and