Wall drills, for drive-phase angle
Hands on a wall, body leaned to ~45 degrees, drive one knee up alternately for 10 contacts per leg. Three sets. Trains the same posture as the first 10m of a sprint, indoors, on any wall.
Sprint speed is built at the track, but the patterns that make sprinters fast can be drilled anywhere. Wall drills, A-skips, fast-feet ladders, and isometric hip-flexor holds work in a hallway or on a stretch of grass. Below: the drills that actually transfer, set and rep ranges, and how to film them so you can check yourself.
Hands on a wall, body leaned to ~45 degrees, drive one knee up alternately for 10 contacts per leg. Three sets. Trains the same posture as the first 10m of a sprint, indoors, on any wall.
A 10-foot stretch of chalk lines, hash marks, or a ladder gives you 30 fast ground contacts per pass. Trains turnover frequency. 4-6 passes per session.
30-second knee-up holds against a wall, one leg at a time. Trains the position you want at top speed. Cheap, no equipment, transfers directly.
Home drills only matter if they show up in your sprint. Film a flying 30m at the track before and after 6 weeks of home work. AI checks knee height, stride frequency, and drive-phase angle. If the drills are working, those numbers improve.
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