As you participate in running 100m and 200m, you need to observe the following safety measures.
Perform warm up activities before running
Do not cross in front of each other while running
Look out for objects like stones and remove them from the track.
The safety precautions assist to avoid injury of self and others while using the athletic track. You are therefore required to observe these rules for your own safety.
Then stand up with arms raised and rise up on to the balls of the feet with hips extended. (Balls of the feet - portion of the sole between the toes and the arch)
Then bring the arms back behind you and bend the knee and hips
Drive as powerfully as possible off the ground while throwing the arms forward as forcefully as possible.
Once you are airborne, extend the hips up and out and throw the feet forward.