HOW TO NAIL SUB-THRESHOLD SESSIONS (NORWEGIAN METHOD)

In this episode I’m joined by Sota — a running coach who’s currently focused on ultras and has done a lot of thinking and experimenting with threshold and sub-threshold training.

The goal of this conversation is simple: How do you actually run sub-threshold sessions at the RIGHT intensity?

We dig into the Norwegian-inspired approach I’ve been using (“Norwegian singles”) and break down what it really means to train in that “sweet spot” zone without overcooking it.

IN THIS EPISODE WE COVER

• State, not pace: Why the true goal is a physiological state – not a magic pace or heart rate number

• Heart rate done properly:

  • Why wrist-based HR can be unreliable

  • Why a chest strap matters

  • Using max heart rate from a proper test vs a hard 5K

  • What happens when HR drifts up and when that doesn’t mean you ruined the session

  • The kind of HR range I typically see by the end of reps (not the start)

• Pace as a surrogate (with caveats):

  • Why calculators only give a range, not a target to obsess over

  • How hills, heat and humidity radically change what “the right pace” looks like

  • Examples from big marathons like Berlin vs London to show what weather does to performance

• RPE, breathing and talk test:

  • Using feel, breathing and talking to understand when you’re under control

  • The clear breathing “line” where you know you’ve stuffed it and gone too hard

  • Why I don’t obsess over the 1–10 RPE number, but still use the idea

• Recovery, reps in reserve and motivation:

  • Why I want to feel like I could do another sub-threshold session the next day

  • Using “reps in reserve” thinking for threshold, not just in the gym

  • How motivation and how you feel the next day can signal if you’ve pushed too hard

• Trusting your body vs chasing numbers:

  • How all metrics (pace, HR, power, etc.) are just surrogates for the same state

  • Why triangulating multiple signals beats relying on just one

  • Learning to trust feel once you’ve calibrated it

• My experiment with Norwegian singles:

  • The 10 x 3-minute sessions I’ve been doing

  • How my pace has jumped by ~10 seconds per km in six weeks at the same effort and HR

  • Why this style of training feels easier, more fun – yet progress has never been faster

We finish by talking through common mistakes people make with sub-threshold work and Sota’s top tips for getting this style of training right long term: consistency over perfection, aiming for the dartboard rather than the bullseye, and remembering that it’s always better to leave a little in the tank than to blow up.

If you’re trying to understand the practical side of the Norwegian method and want more than just pace charts and screenshots, this episode will help you join the dots.

WATCH THE ORIGINAL VIDEO: https://youtu.be/jLQbdboNwVA

MORE ON NORWEGIAN TRAINING: YouTube playlist – https://www.youtube.com/playlist?list=PLdBf6Px_3oJpAkqogzmcpR1GuF7bwhw2_

FOLLOW YouTube: https://www.youtube.com/@jimmyrunsoz?sub_confirmation=1

Strava: https://www.strava.com/athletes/jimmyruns

RESOURCES • Make Your Own DIY Energy Gels: https://youtu.be/1x0pUjKQN6w • Free Energy Gel Calculator: https://docs.google.com/spreadsheets/d/1THr2b68yFp69gFfox1LGelckZTimJCXBxHVIZ5225Bo/copy

PARTNER LINKS: • Get 20% off BIX → https://www.bixvitamins.com/discount/JIMMYRUNS • Movement Vault (10% off with code JIMMYRUNS) → https://app.movementvault.com/auth/affiliate#via=james • @BobandBrad Q2 Pro Mini Massage Gun ___Amazon AU: https://www.amazon.com.au/dp/B0D16W8531 → 10% OFF Code: BOBBRAD10 ___Amazon US: https://amzn.to/4eB1slM → 10% OFF Code: BOBBRADQ2 • Zorali Apparel → https://alnk.to/1C9FzT2

#NorwegianMethod #SubThreshold #ThresholdTraining #MarathonTraining #JimmyRuns #RunningCoach #HeartRateTraining #RunByFeel

In this marathon deep-dive, Jimmy sits down with Andy Raynor (FOD Runner) and James Copeland (Sirpoc) to unpack what runners get wrong about marathon prep — from pacing and fueling to how the Norwegian Singles Approach (NSA) actually works for real-world athletes. We break down long-run structure, threshold training, fatigue management, and how to stop blowing up on race day. One of the most practical marathon conversations you’ll ever hear.

Watch the full video on YouTube - https://youtube.com/@jimmyrunsozhttps://youtu.be/zYHcctpQ2rQ