Performance training requires a proper warmup, and we use a dynamic warmup to begin a training session. This is different than a static stretch which is used at cool down.
Dynamic Sports Performance - Lateral Speed Training - American Coaching Academy
Dynamic Warmup Drills for Speed Training
Dynamic Warm Up
Dynamic Warmup Drills for Speed Training
How To Run Faster INSTANTLY With This Dynamic Warmup - Speed Training Workout
Speed Training Session Full Dynamic Speed Warm-Up
5-Minute Dynamic Warm-Up Routine
7 Must Do Dynamic Warm Up Exercises for Runners
Warm Up Routine 3, Warm Up Drills, Pre-Game Warm Up