The research on faster sprinters shows why you need strength for speed. And we are not just talking about weight on a barbell.
Integrating Strength & Power Training for Sprinters into the Track
Acceleration and Power: Breaking Down the Start - SimpliFaster
Technique: Analysis of Usain Bolt's Running Technique
Speed Archives - Velocity Sports Performance
Sports Science Archives - Velocity Sports Performance
Sprint Faster - How Faster Athletes Develop Elite Speed With More
Is it possible to react within 100 ms in a sprint start?
Is there something like naturally fast runners or can everybody
Researchers reveal large glutes key for sprint speed and performance
Force-Velocity Curve – Sport Science Insider