From the net...Speed, agility, and quickness are qualities that all athletes work very hard to maximize. By definition, running speed is the interaction of stride frequency and stride length . Stride frequency is how fast one can move the legs back and forth while running. Stride length is related to body height and leg length, making it unique for each individual, and is also determined by the force generated when the foot comes in contact with the ground. As running speed approaches maximum, frequency changes more than length and is therefore more important in determining final velocity.
When one thinks of "speed", what usually comes to mind is how fast an athlete can cover a standard 40-yard dash test or complete a 100-meter sprint. Thus, linear-speed, the ability to achieve high velocity while running in a straight line, is often the quality spoken about and exaggerated among athletes and coaches. Linear-speed is not any more important than possessing the quickness and agility needed to excel in most sports. Linear runs of 40 yards or more are rarely performed while participating in any sport except track and field.
Agility (the ability to explosively brake, change direction, and accelerate again) is often more important than simply achieving and maintaining high velocity. Agility and quickness are determined by one?s ability to stop and change direction while maintaining balance and velocity. Many athletes and coaches underestimate the strength and skill needed to make rapid stops and changes in directions. Athletes need to dedicate more training time to drills that will improve their ability to decelerate their body in a proper and efficient manner, decreasing the risk of non-contact injuries to the knee or ankle joint. A training program that includes exercises to improve agility, quickness, balance, strength, and coordination should be emphasized along with drills that will improve pure linear-speed.
Sammy in my opinion technique is very important! Especially when it comes to the female body. Their center of gravity is lower and they land as much as 5 times their body weight . So to be able to change direction is critical and it comes back to programs such as the PEP program that have studied this through the CDC and NCAA.
Howard