Balance, posture and core muscles are the foundation for a good sprinter. Your goal should be to run at a faster speed, while exerting less energy.
- Stretch properly to avoid injury (10-30sec stretches of your legs and torso).
- Warm up by jogging one lap around the track, then running one lap around the track.
- Do dynamic stretches (Arm/Leg swings, rotating the torso etc...)
- Sprint a certain phase of your race (sprint the first 100m, stride 50, then sprint the last 50 of the 200m....but for the 100 m dash, sprint full blown speed the entire time).
- Repeat steps 2-3 as many times as you like.