Zero to 22mph (36km/hr) in 3 seconds
Brian Mackenzie provides an overview of speed development.
Speed is the quickness of movement of a limb, whether this is the legs of a runner or the arm of the shot putter. Speed is an integral part of every sport and can be expressed as any one of, or combination of, the following:
What is speed influenced by?
Energy system for speed
The anaerobic alactic pathway supplies energy for absolute speed. The anaerobic (without oxygen) Alactic (without lactate) energy system is best challenged as an athlete approaches top speed between 30 and 60m while running at 95% to 100% of maximum. This speed component of anaerobic metabolism lasts for approximately six seconds and should be trained when no muscle fatigue is present (usually after 24 to 36 hours of rest)
How do we develop Speed?
The technique of sprinting must be rehearsed at slow speeds and then transferred to runs at maximum speed. The stimulation, excitation, and correct firing order of the motor units, composed of a motor nerve (Neuron) and the group of muscles that it supplies, makes it possible for high-frequency movements to occur. The whole process is not clear, but the complex coordination and timing of the motor units and muscles most certainly must be rehearsed at high speeds to implant the correct patterns.
Flexibility and a correct warm-up will affect stride length and frequency (strike rate). Stride length can be improved by developing muscular strength, power, strength endurance, and running technique. The development of speed is highly specific, and to achieve it, we should ensure that:
When should speed work be conducted?
It is important to remember that the improvement of running speed is a complex process that is controlled by the brain and nervous system. For a runner to move more quickly, the leg muscles, of course, have to contract more quickly, but the brain and nervous systems also have to learn to control these faster movements efficiently. If you maintain some form of speed training throughout the year, your muscles and nervous system do not lose the feel of moving fast, and the brain will not have to re-learn the proper control patterns at a later date.
In the training week, speed work should be carried out after a period of rest or light training. In a training session, speed work should be conducted after the warm-up, and any other training should be of a low-intensity.
Sprinting speed can be developed in many ways:
I am sure you can appreciate the potential dangers of these two methods.
Downhill sprinting is a safer alternative to developing sprinting speed. A hill with a maximum of a 15° decline is most suitable. Use 40m to 60m to build up to full speed and then maintain the speed for a further 30m. A session could comprise of 2 to 3 sets of 3 to 6 repetitions. The difficulty with this method is to find a suitable hill with a safe surface.
Over-speed work could be carried out on the track when there are prevailing strong winds - run with the wind behind you.
Reaction Speed Drill
The athletes start in a variety of different positions - lying face down, lying on their backs, in a push-up or sit-up position, kneeling or seated. The coach stands some 30m from the group then gives a signal for everyone to jump up and run towards him/her at slightly faster than race pace. Repeat using various starting positions and with the coach standing in different places so that the athletes have to change directions quickly once they begin to run. Speed reaction drills can also be conducted whilst controlling an item (e.g. football, basketball, hockey ball) with an implement (e.g. feet, hands, hockey stick).
The general principles for improved speed are as follows:
Seven Step Model
The following is a seven-step model for developing playing speed.
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About the Author
Brian Mackenzie is a British Athletics level 4 performance coach and a coach tutor/assessor. He has been coaching sprint, middle distance, and combined event athletes for the past 30+ years and has 45+ years of experience as an endurance athlete.
The following Sports Coach pages provide additional information on this topic: