WORKING THEORY SERIES

The series where we dive into the science.
We take popular training claims, checks it against the actual research, and tells you what to do about it.
No trends, no dogma — just the reasoning behind how we coach.

Working Theory Series

Working Theory 08: Will Heavy Lifting Make You Bulky and Slow?

Angela Naeth

Working Theory 08 · Training Science Will Heavy Lifting Make You Bulky and Slow? The short answer Heavy lifting does not inevitably make endurance athletes bulky or slow. In these...

Working Theory 08: Will Heavy Lifting Make You Bulky and Slow?

Angela Naeth

Working Theory 08 · Training Science Will Heavy Lifting Make You Bulky and Slow? The short answer Heavy lifting does not inevitably make endurance athletes bulky or slow. In these...

Working Theory 07: Your Off-Season Break Won't Erase Your Fitness

Angela Naeth

A short break after your last race costs less than you fear. The detraining research shows the loss levels off, and you keep more of your foundation than you think....

Working Theory 07: Your Off-Season Break Won't Erase Your Fitness

Angela Naeth

A short break after your last race costs less than you fear. The detraining research shows the loss levels off, and you keep more of your foundation than you think....

Working Theory 6: Durability

Angela Naeth

Durability: The Fourth Pillar Your Zone Test Can't See The short answer ============================================================ WORKING THEORY 06 · Durability Shopify blog: Working Theory Series Paste into Shopify code view (<>). All...

Working Theory 6: Durability

Angela Naeth

Durability: The Fourth Pillar Your Zone Test Can't See The short answer ============================================================ WORKING THEORY 06 · Durability Shopify blog: Working Theory Series Paste into Shopify code view (<>). All...

Working Theory 05: You Don't Have to Train by Power

Angela Naeth

You Don’t Have to Train by Power. But Your Zones Should Come From CP, Not FTP. The short answer HERO Working Theory 05 · Training Science Pace, heart rate, lactate,...

Working Theory 05: You Don't Have to Train by Power

Angela Naeth

You Don’t Have to Train by Power. But Your Zones Should Come From CP, Not FTP. The short answer HERO Working Theory 05 · Training Science Pace, heart rate, lactate,...

Working Theory 4: Zone 2 (ANC Zone 1) isn't Magic.

Angela Naeth

Zone 2 Isn’t Magic. It’s a Volume Tool — and You’re Probably Doing the Wrong Zone. The short answer HERO Working Theory 04 · Training Science The internet says Zone...

Working Theory 4: Zone 2 (ANC Zone 1) isn't Magic.

Angela Naeth

Zone 2 Isn’t Magic. It’s a Volume Tool — and You’re Probably Doing the Wrong Zone. The short answer HERO Working Theory 04 · Training Science The internet says Zone...

Working Theory 3: The carb revolution is real. But the number that matters most isn't grams per hour — it's your blood sugar.

Angela Naeth

The carb revolution is real. But the number that matters most isn't grams per hour — it's your blood sugar. The short answer Working Theory 03 The "carb revolution" says...

Working Theory 3: The carb revolution is real. But the number that matters most isn't grams per hour — it's your blood sugar.

Angela Naeth

The carb revolution is real. But the number that matters most isn't grams per hour — it's your blood sugar. The short answer Working Theory 03 The "carb revolution" says...

Working Theory 02 Sodium Loading — What to Do the Morning of Your Race

Angela Naeth

Working Theory 02 The short answer Working Theory 02 – Sodium Loading Sodium Loading — What to Do the Morning of Your Race Angela Naeth Coaching · May 6, 2026...

Working Theory 02 Sodium Loading — What to Do the Morning of Your Race

Angela Naeth

Working Theory 02 The short answer Working Theory 02 – Sodium Loading Sodium Loading — What to Do the Morning of Your Race Angela Naeth Coaching · May 6, 2026...

Working Theory 01: Heat Acclimation — What the Research Actually Shows

Angela Naeth

What heat acclimation research actually shows The short answer Working Theory · Issue 01Annotated study notes on endurance research By Angela Naeth · April 28, 2026 A note before we...

Working Theory 01: Heat Acclimation — What the Research Actually Shows

Angela Naeth

What heat acclimation research actually shows The short answer Working Theory · Issue 01Annotated study notes on endurance research By Angela Naeth · April 28, 2026 A note before we...

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