How to Increase Your Speed
Acceleration
Speed is a product of stride length (the distance your feet travel
in a stride) and stride frequency (the number of steps you take in a given time). However, you will not reach top speed by focusing on increasingly
larger steps to increase stride length or by taking short, quick steps to increase
stride frequency. Instead, top speeds are created by applying 'optimal' force
to the ground. Both length and frequency are improved by strength, so better
strength application results in faster speeds. Acceleration training is
a form of strength training.
Ground contact times (the amount of time each foot spends on the
ground) are another important factor to consider during acceleration. During
the earliest parts of acceleration, especially the first two steps, you are
trying to overcome (inertia) the weight of your body by moving it forward as
quickly as possible. This takes a great deal of strength and power. The
stronger and more efficient you are, the more you can extend your acceleration
phase.
High-intensity sprint work involves recruiting specific groups of
muscle fibres and improves the efficiency of neuromuscular firing patterns.
Sprinting is taxing to the central nervous system (CNS), and once the CNS
becomes fatigued, workouts quickly lose their effectiveness. Any speed
work must be done with full recovery - one minute of rest for
every 10 metres that you run. Sprinting is a highly technical activity.
Without full recovery, both your muscles and your CNS will begin
to fatigue quickly, reducing the short and long-term effects of your
training. For this reason, acceleration should not be trained with fatigue
present. To optimise your success, full recovery must be adhered to both in
your workouts as well as your weekly plan. It takes 36-48
hours to recover from a speed workout.
Acceleration Cues
- Drive the lead arm (same as the front leg) up as you begin to
sprint.
- Drive out so the body is at a 45° angle to the ground.
- Keep the heel recovery low during the first 6-8 strides.
- Drive the elbows down and back. Keep the hands loose, but not
open.
- Arms should remain at 90 degrees at the
elbow.
- Step over the opposite knee and drive the foot down into the
ground to create maximal force.
- Do not force yourself to 'stay low'. This will limit the amount
of force you can apply to the ground and lead to poor acceleration.
- Let your upper body unfold naturally. 'Staying low' will occur
naturally if you are already strong enough.
During acceleration, the foot should strike directly below or
slightly behind the hips. You must be able to drive out, so your body is at a
45° angle to the ground, step over the opposite knee, and drive the foot
down into the ground to create maximal force.
Acceleration work should be used at the beginning of your training
season. You cannot be efficient in running longer distances without getting the
proper strength levels and neuromuscular efficiency from the shorter intervals.
You want to be driving out as far as possible, so the stronger you are, the
further the acceleration phase will be, which in turn will improve your top
speed.
Article Reference
This article first appeared in:
- BETH, P. (2006). How to Increase Your Speed - Acceleration. Brian Mackenzie's Successful Coaching, (ISSN 1745-7513/ 38/ December), p. 8-9
Page Reference
If you quote information from this page in your work, then the reference for this page is:
- BETH, P. (2006) How to Increase Your Speed - Acceleration [WWW] Available from: https://www.brianmac.co.uk/articles/scni38a5.htm [Accessed
About the Author
Patrick Beth is a co-owner of Athletes' Acceleration, Inc., a company devoted to performance enhancement whose mission is to improve the knowledge base of motivated coaches and athletes to improve athletic performance. He is a Performance Consultant certified by the National Strength and Conditioning Association (CSCS), the American Council of Sports Medicine (HFI), and the National Academy of Sports Medicine (PES). He is a USA Track and Field Level II Coach in the Sprints, Hurdles, and Jumps.