[i]Originally posted by danimal9[/i]
I don’t know but speed is distance over time. acceleration is distance over time squared.
All correct. But we were talking about speed work for a sprinter. By most sources (NCSA, USATF, USTCA, etc.) this would consist of sprints of less than 150m at maximal intensity.
Speed work to me is anything that produces a time that is race pace or faster.
Your definition is much more broad than ours. I’m going to go out on a limb and say you have a distance running background. Both your terminology and your training regimens reflect it.
By our definition (which actually isn’t ours it’s the accepted langauge of sprint training) what you are describing could be classified as any number of things: acceleration development, maxV development, short speed endurance, speed endurance, special endurance 1 or special endurance 2 depending on how the workout is performed. Typically only acceleration development, maxV development, and short speed endurance would be considered true “speed work” in this terminology scheme.
How in the world is a 20m thru 50m sprint considered speed endurance?
This would be classified as short speed endurance because of the incomplete rest interval you listed and the fact that maximal velocity can only be maintained for about 1s or 10m. Because of the latter point, attempting to run at maximal speed for anything beyond 40-50m (30-40m to get to top speed + 10m of running at top speed) is actually working on speed (in this case short speed) endurance or the ability to sustain maximal speed.