英语翻译It is no secret among athletes that in order to improve

英语翻译
It is no secret among athletes that in order to improve performance you’ve got to work hard.However,hard training breaks you down and makes you weaker,It is rest that makes you stronger.Improvement only occurs during the rest period following hard training.This adaptation is accomplished by improving efficiency of the heart and certain systems within the muscle cells.During recovery periods these systems build to greater levels to compensate for the stress that you have applied.The result is that you are now at a higher level of performance.
If sufficient rest is not included in a training program,imbalance between excess training and inadequate rest will occur,and performance will decline.The “overtraining syndrome(综合症)” is the name given to the collection of emotional,behavioral,and physical symptoms due to overtraining that has persisted for weeks to months.It is marked by cumulative exhaustion that persists even after recovery periods.
The most common symptom is fatigue.This may limit workouts and may be present at rest.The athlete may also become moody,easily imitated,have altered sleep patterns,become depressed,or lose the competitive desire and enthusiasm for the sport,Some will report decreased appetite and weight loss.Physical symptoms include persistent muscular soreness,increased frequency of viral (病毒性的) illnesses,and increased incidence of injuries.
The treatment for the overtraining syndrome is rest.The longer th

在运动员们中间,为了提高表现而不得不努力训练不是什么秘密.然而艰苦的训练是你垮掉,使你更弱.而休息反而使你更其强壮.提高出现在努力训练之后的休息中.这种变化通过提高心脏工作效率和肌肉细胞系统来实现的.在恢复期间,这些系统被锻炼到更好的水平来补偿你所付出的压力.结果你可以表现得更好了.如果足够的休息没有被包含在训练项目中,那么过分训练和不足够休息的不平衡就会出现.过渡训练综合症就是情绪的,行为的,和身体的由于持续几个星期或者几个月的过渡训练的病症的总称.这是由于积累疲劳,这种疲劳甚至持续到恢复期之后.最常见的症状就是疲劳.这可能限制锻炼,可能出现在休息中.运动员也可能变得情绪多变,很容易被激怒,改变睡眠习惯,变得消沉,或者失去在运动上的竞争动力和热情.一些运动员被报告出现没有胃口或者体重下降.身体上的症状包括持续的肌肉疼痛,常常出现病毒性疾病,还经常意外受伤.