Sprint start form: what to check in your first three steps
Acceleration is decided early. By the time an athlete is upright and running, most of what determined the first ten metres has already happened. That makes the first three steps the highest-value part of a sprint clip to review — and the part most often filmed badly.
Film it side-on, and give yourself room
A sprint start needs a wider frame than people expect. The athlete travels several metres in under a second. Frame so there is space ahead of them, keep the camera still, and let them run out of frame rather than panning to follow.
Step one: shin angle
Pause on the first ground contact. Look at the angle of the shin of the driving leg relative to the ground.
In acceleration, that shin should be angled forward — the athlete is pushing themselves along, not bouncing upward. A vertical shin on the first step usually means the athlete stood up too early and traded horizontal push for height.
Step one: trunk position
On the same frame, look at the trunk. Early acceleration involves real forward lean, and that lean should come from the whole body forming a line, not from bending at the waist.
Bending at the waist while the hips stay back is the common fault, and it is obvious on a side view once you know to look.
Steps two and three: does the athlete rise gradually?
Play the clip at normal speed and watch the head. It should rise smoothly across the first several steps rather than popping up between step one and step two.
A sudden rise is worth investigating. So is staying low for too long — an athlete who cannot rise is usually fighting the ground rather than pushing off it.
Step length early on
Early steps are short. That is correct. Athletes who try to reach for long strides out of the start typically land with the foot ahead of the hips, which brakes.
On video, look at where the foot contacts relative to the body. In the first three steps it should be under or slightly behind the hips, not out in front.
Arm action
Arms should be driving in the direction of travel, not crossing the body. Crossing usually shows up alongside trunk rotation, and it is easier to see from the front view than the side — worth a second clip if the side view raises the question.
What to compare
Two starts from the same session tell you what is repeatable. Two starts from different weeks tell you whether something changed. Film from the same distance and angle each time, or the comparison is between camera positions rather than between starts.
The short version
- Shin angled forward on first contact, not vertical
- Lean from a whole-body line, not a bend at the waist
- Head rising gradually across the first steps
- Short early steps, foot landing under the hips
- Arms driving forward, not across
See the track and field video analysis guide, or how to film a training video for framing that makes these visible.