It looks easy, but it's actually tough on the muscles and can lead to injuries in a hurry.
这看起来简单，但实际上会让肌肉很费力，还可能一下子使肌肉造成损伤。
But if you understand what causes trauma to these areas, it's easy to adjust your practice to avoid or help heal injuries. Here's a primer on each.
如果你理解了损伤是如何造成的，那么通过调整当下的练习来预防或恢复已有损伤都不在话下。
And injuries were very easy to happen.
而且受伤是很容易发生的。
The movement of track and field is the most basic sport, easy to produce sports injuries.
田径运动是各项运动中最基础的体育项目，极易产生运动伤害事故。
The movement of track and field is the most basic sport, easy to produce sports injuries.
田径运动是各项运动中最基础的体育项目，极易产生运动伤害事故。
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