The LJP journal

Ideas behind the work.

Soccer coaching, sports science and player development. Articles by Luis Jeronimo.

5 articles for families

Inside a FIFA Window: 5 Matches. 15 Days. 4 Countries.
YouthProFamiliesCoaches

Pro performance · 2026-10-07

Inside a FIFA Window: 5 Matches. 15 Days. 4 Countries.

What it takes to keep a pro available when the calendar gives you nothing.

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YouthFamilies

The LJP approach · 2026-09-15

What LJ Performance Actually Is

A complete soccer high performance system usually only seen at the professional levels.

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YouthFamilies

Youth performance · 2026-08-31

The Wall Every Athlete Hits Around Minute Sixty

It's rarely conditioning. Most of the time, it's what your athlete ate three hours before practice.

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LJP Cover SpeedDrills
YouthFamiliesCoaches

Speed development · 2026-08-24

Why Your Kid's Speed Drills Aren't Making Them Faster

Ladders and cones build coordination. They don't build speed. Here's the difference.

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