QT2.0 Specificity Block Comments

QT2.0 Specificity Block Comments

What This Phase Is Actually About

The Specificity block is where fitness becomes usable.

From an athletic architecture standpoint, this phase is focused almost entirely on the guy inside the house.

That “guy” is not you, the athlete.
It is your ability to apply whatever fitness you already have - under the exact demands that you will face on race day.

At this point, we stop trying to build the house.
We focus on learning how to live inside it.

1. Muscle Fiber Utilization

Race intensity defines the fibers

Muscle fiber emphasis during the Specificity block depends almost entirely on the event.

Rather than targeting a physiological adaptation, we target race demands.

Typical emphasis by race type:

  • IRONMAN

    • Mid → high Type I (slow-twitch) fibers

    • Slight engagement of lower Type IIA - Oxidative fibers

  • IRONMAN 70.3

    • Mid → high Type IIA - Oxidative fibers

  • Olympic Distance

    • High Type IIA - Oxidative

    • Lower Type IIA - Glycolytic

  • Open Marathon

    • High Type I

    • Mid Type IIA - Oxidative

  • Open Half Marathon

    • High Type IIA - Oxidative

    • Low Type IIA - Glycolytic

This block does not attempt to change fiber characteristics.
It trains the athlete to express the right fibers, at the right intensity, for the right duration.

2. The Athletic Architecture Model

Maximizing the guy inside the house

In other training blocks:

  • We built the foundation

  • We raised the ceiling

  • We lifted the roof

  • We balanced the structure

In the Specificity block:

  • We accept the size of the house

  • And make the guy inside it as large as possible

That means:

  • Translating fitness into execution

  • Practicing race-specific intensities

  • Operating under race-specific stressors

Examples:

  • On the bike: holding race power in the aero bars, while fueling

  • On the run: sustaining race pace while fueling, under accumulating fatigue

  • Across disciplines: rehearsing how effort, posture, nutrition, and pacing interact

The goal is not to gain more fitness.
The goal is to fully access the fitness that already exists.

3. Quality, Duration, and Fatigue Accumulation

Fitness must not be buried under fatigue

This block typically sits:

  • Closest to the key race or event

  • And often contains the taper

Because of that:

  • Fatigue accumulation is heavily restricted

  • Workout quality is prioritized above all else

  • CTL growth is intentionally flat - or slightly declining

Why?

Because fitness that cannot be accessed is useless.

During this phase:

  • We want the athlete able to shed fatigue on demand

  • We want freshness without losing specificity

  • We want race fitness available, not hidden

As taper begins:

  • CTL often drops slightly

  • Training Stress Balance improves

  • The athlete gains access to the fitness they’ve already built

The objective is not to feel “trained.”
The objective is to feel ready.

The Big Picture

The Specificity block is about execution.

Not growth.
Not expansion.
Not proving fitness.

It is about making sure:

  • The right intensities are familiar

  • The right stressors have been practiced

  • And the athlete can express their fitness without a blanket of fatigue

When race day arrives, nothing should feel new - only decisive.

That’s the role of Specificity in QT2.0.