Running Tips from Coach Diaz

Overview

Coach Diaz explains how runners’ biomechanics and technique choices affect efficiency and fatigue. He compares two athletes’ approaches—Katie’s cadence management and Josh’s strategic pacing—and connects these choices to how the body accumulates lactate during a race.

Cadence, “Turning Over,” and Lactate

• Katie’s cadence focus: Diaz looks at her cadence and how quickly she can “turn over” her legs.
  • Some runners become sluggish.
  • Others increase cadence too much, which can be inefficient.
• Why turnover matters: Increasing leg turnover can raise the body’s lactate (“lactic acid buildup”), which may become a problem later in the race.

Josh’s Strategic Pacing

Diaz contrasts Katie’s approach with Josh’s strategy:

1. Push pace strategically Josh slightly sacrifices cadence to make the other runner work harder.

2. Recover

3. Surge near the finish He saves energy so he can accelerate again late in the race.

The Efficiency Target: ~180 Strides Per Minute

Diaz explains why a cadence around 180 strides per minute is generally more efficient for most races, with an important exception:

• Not for very short sprints (approximately 100–300 meters)

The “Gate Cycle” Concept

• The gate cycle is the time from one foot striking the ground until that same foot returns to the gait cycle.
• If runners overreach—especially when trying to go faster—the extra distance makes the next step take longer.
• This can create:
  • Vertical oscillation (up-and-down motion)
  • Greater ground impact
  • More “breaking force,” which interrupts forward progress and increases instability.

Landing Mechanics: Forefoot/Heel Model

Diaz breaks down landing using a forefoot/heel framework.

Toe Mobility and Arch Stability

• He emphasizes great-toe mobility at the metatarsal-phalangeal joint.
• This mobility helps the arch function for stability.

Dorsiflexion and the “Bone Bridge”

• With proper dorsiflexion, the foot’s “bone bridge” locks down at contact.
• If the foot lands with an unstable, toe-dived position, it can create problems that radiate upward, potentially affecting:
  • calf/ankle region
  • related structures

Strengthing vs. Root Cause

Diaz notes that simply strengthening the calf may not solve the issue if the real problem is repeated instability at ground contact.

Drills and Training Adjustments

Correction Practice: Overstriding and Unstable Landings

Diaz recommends drills to improve technique and reduce overstriding/instability.

• “Treadmill frolic” (treadmill drill)
  • Hopping on one foot for repetitions
  • Switching feet afterward
  • Key cues:
    • Do not overstride
    • Avoid “peg-leg” running form

Future Workout: Hill / “Peg Leg” Training

He also references a future hill workout to expose ankle weaknesses:

Athletes may struggle going uphill—may need to stop—then realize they must train both legs.

Presenters / Sources

• Coach Diaz (speaker)
• Quintilian (referenced)