Training method Description Primary Focus on technique. Compromise on speed to improve technique. Secondary Improve speed and agility with assisted and resisted sprinting. Assisted: Improve stride frequency by forcing the body to a faster gravity-assisted sprinting speed. Resisted: Improve stride length and speed-strength by applying gravity-based resistance during a sprint. Tertiary Improve speed and agility through basic fitness, power, and speed-endurance training. Basic fitness: Any speed or power training must be conducted with individuals who have achieved a foundation level of general fitness (strength, aerobic endurance, mobility). Power: Train movements in the kinetic chain used in the sport. With sprinting, -closed chain is primary -open chain is secondary. Speed-endurance: Training with sport-specific work-rest intervals based on competition modeling procedures (see page 486 to 487).