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Infographic titled “Speed & Special Endurance” explaining speed endurance as the ability to maintain top-end speed for short efforts (95–100% maximal velocity) lasting about 7–20 seconds, with a small graph showing an orange curve that decays slower than a gray curve; notes what speed endurance is not (200–300m repeats or lactic-focused work at 30m), and describes special endurance divided into SE1 (20–40 s) and SE2 (40 s–2 min) with runner and stopwatch icons and a colored SE1/SE2 timeline.

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