How We Train  ›  Biomechanics
Progression 1 of 9 · Ages 7–18
Learn to run correctly
Most kids are never taught how to run — they just run. This is the sequence every RSP athlete starts with: arms before legs, marching before skipping, one leg before two.
13 drills, in order. Each one assumes the drill before it.
0:00
Drill 1 · Split Stance · Biomechanics
13Drills in order
3Levels covered
FreeFirst drill
2004U.S. Olympian
The order
Every athlete, every level. Arms before legs, marching before skipping, single leg before alternating. Each drill assumes the one before it.
1

Split Stance

Beginner Free

The shape everything is built on. Get it wrong and every drill after teaches the wrong pattern.

  • Opposite arm to opposite leg
  • Front arm at 45 degrees, not across the body
  • Weight forward on the ball of the front foot
  • Tall chest, ribs down
2
🔒

Arm Drive

Beginner

Arms standing still first, so they feel it without thinking about their legs.

  • Hip to chin, nothing crosses the midline
  • Elbows stay bent at about 90
  • Shoulders down and loose
  • Drive the elbow back, don't punch the hand forward
3
🔒

Arm Drive With Skips

Beginner

Where you find out if the arms and legs actually coordinate. Most young athletes lose the arms here.

  • Arms lead, the skip fits around them
  • Same range as standing — it usually shrinks
  • Stay tall, do not lean back
  • Rhythm before height
4
🔒

A-March

Beginner

Marching before skipping. Slow enough that every position can be held and corrected.

  • Knee to hip height, thigh parallel
  • Toe pulled up toward the shin
  • Foot lands under the hip, not out in front
  • Stay tall — no leaning back to lift the knee
5
🔒

Marching High Knees

Beginner

Same position, continuous. The march becomes a rhythm rather than a series of poses.

  • Knee height does not drop as the tempo rises
  • Ankle stays dorsiflexed
  • Ground contact under the hip every step
  • Arms keep the count
6
🔒

Walk Cycle

Beginner

First look at the full sprint cycle, at walking pace. Every position is holdable here.

  • Knee drives, then extends, then sweeps back under
  • Heel recovers close to the hamstring
  • Foot lands under the centre of mass
  • Slow is the point — do not rush it
7
🔒

Jog Cycle

Intermediate

The same cycle at jog pace. Fast enough to be real, slow enough to still fix.

  • Same shape as the walk, just quicker
  • Do not let the heel drop away behind
  • Stay tall through the hips
  • If it breaks down, go back to the walk
8
🔒

Leg Cycle

Intermediate

Full-speed cycle. This is what sprinting is, isolated from having to run fast.

  • Heel up, knee through, foot down under you
  • No reaching — the foot lands, it does not stretch out
  • Hips stay square
  • Arms match the leg speed
9
🔒

Cycling Over Knees

Intermediate

Cycle with a target. The opposite knee gives the athlete something to clear so the recovery gets high enough.

  • Heel travels over the opposite knee
  • Do not swing the leg out to get around
  • Quick off the ground on the stance side
  • Same height both legs
10
🔒

A-Skip Single-Leg

Intermediate

Skipping starts here, one leg at a time. One side works while the other just keeps rhythm.

  • Working leg does the full A position
  • Rhythm leg stays quiet and short
  • Arms stay full range on both sides
  • Switch sides evenly
11
🔒

A-Skip

Intermediate

Alternating A-skip. Both legs working, which is where coordination is exposed.

  • Same knee height as the single-leg version
  • No pause between sides
  • Foot still lands under the hip
  • Tall through the whole thing
12
🔒

B-Skip Single-Leg

Advanced

B before alternating B. The extension and paw-back added to one leg at a time.

  • Knee up first, then extend, then paw back
  • The paw is the point — a B without it is an A
  • Do not reach the foot out in front
  • Rhythm leg stays quiet
13
🔒

Alternating B Skip

Advanced

The full B-skip. The most advanced drill in the ladder and the closest to sprint mechanics.

  • Both legs doing the full pull, extend and sweep
  • Ground contact stays short despite the range
  • Hips square, they will want to rotate
  • If the paw disappears, drop back to single leg
12 more drills in this progression

Every one filmed, with the cues Coach J actually says. Online Studio opens all nine progressions and the programs built on them.

Open the full progression — $19/mo
© 2026 Run Speed Performance · Carrollton, TX
Founded by 2004 U.S. Olympian Coach J
Run Speed Performance
runspeedperformance.com