Neck Injury

In  Martial arts world  training, injury is really common in the gym.  But preparing the body before engaging in heavy physical activity is very good.  Stretching has been imposed in any martial arts.  I think in all arts stretching has been used as warm up for the whole body.   Some prefer to run, then stretching after few rounds.  After warm up it is time to review same moves and techniques. In taekwondo review kicks and in Aikido basic moves that relates to techniques.  I have a friend who suffers shoulder injury from executing extreme techniques.  Neck pain or neck injury is very common in any martial arts like rolling or drop move in Aikido, if you are not taught properly accidents will occur.  This is why practice makes it perfect in any art.