NSCA Sprinting and Running Practice Test

At the start of a sprint, you’re trying to push hard against the ground to overcome inertia and drive the body forward, so the size and timing of that initial force matter a lot. The approximate peak starting force is about 1,500 newtons, a benchmark coaches and studies often use because it reflects a level of horizontal propulsion that supports rapid acceleration without overemphasizing vertical movement or sacrificing technique. If an athlete can reach roughly this peak, they’re generating enough drive to get the sprint rolling efficiently; values well below it suggest insufficient initial propulsion, while greatly exceeding it is uncommon and can disrupt posture or energy transfer. So the around-1,500-Newton mark is the best, practical target for many sprinters.