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TrainersEye · Calf & Shin Health
Calf & Shin Z
Trainer's Eye
Phase 5 · Impact and return · Session Z

One leg.
Off the floor.
Both sides equal.

Single-leg hopping — the test that decides whether the calf is ready to run.

  • Zsession
  • P5Return
  • 12:00on the clock
  • — donecompleted

Return is judged on symmetry

Readiness to run is judged on heel-raise count and hop symmetry between legs, not on weeks passed.

Balance is a calf task

Standing on one leg is held largely by the calf and foot. Balance work is quiet calf training.

Soleus strains are sneaky

Soleus injuries build up quietly over weeks rather than tearing suddenly, and they take longer to settle than gastrocnemius tears.

Three couplets · two rounds · twelve minutes · legs that take the miles

A

One-leg spring

Single-leg pogo + hop for height
A1

Single-leg pogo

60 s · slow reps

Small stiff-ankle bounces on one foot, thirty seconds each side, quiet contacts.

Easier two feet  ·  Harder travel forward

R1R2—
A2

Single-leg hop for height

8/side · ×2

Hop as high as you can on one leg and land back on the same spot, absorbed.

Easier two feet  ·  Harder higher

R1R2
B

Sideways

Lateral bounds + skater hops
B1

Lateral bounds

60 s · slow reps

Push off the outside foot side to side, landing on the forefoot and sticking it.

Easier small hop  ·  Harder further

R1R2—
B2

Skater hops

10/side · ×2

Bound sideways and hold the landing one second before the next.

Easier step, no hop  ·  Harder further

R1R2
C

Distance

Bounding + triple hop
C1

Bounding

60 s · steps to beat

Exaggerated long strides driving fully off each leg — count the bounds.

Easier normal walking  ·  Harder longer bounds

R1R2—
C2

Triple hop

6/side · ×2

Three linked hops on one leg, sticking the third; smooth rather than maximal.

Easier two hops  ·  Harder further

R1R2

The clock

Round 1settle in — 70%, perfect tracking
0:00A1 → A2
2:00B1 → B2
4:00C1 → C2
Round 2own it — beat Round 1 by quality
6:00A1 → A2
8:00B1 → B2
10:00C1 → C2

Each couplet: 60 s scored → the loading set → 10 s to move on. Done at 12:00.

How to run it

  1. Springs before miles: the calf must store and return load before it runs on it.
  2. Quiet feet are the test. A loud landing is a landing the muscle did not absorb.
  3. Return to running on alternate days only, and add roughly ten per cent a week, not more.
  4. Any return of the old shin or calf pain during or the morning after: drop back one week and hold.

Tick it off

MovementRound 1Round 2Best
A1Single-leg pogoslow reps in 60 s —
A2Single-leg hop for height8/side
B1Lateral boundsslow reps in 60 s —
B2Skater hops10/side
C1Boundingsteps in 60 s —
C2Triple hop6/side
Session time
StreakDay —
Client / Patient
Coach / Clinician signature
Date
TE-12-CALFSHIN-Z