Skip to content

Power and metrics

  • What is TSS, and why do I have a problem with it?

    Training Stress Score explained — how TSS is calculated, how the Performance Management Chart uses it, and where the metric misleads riders.

    Training metricsPower

  • Ramp testing: yea or nay?

    Ramp tests are quick and repeatable, but they suit some riders far better than others. When a ramp test gives you a usable FTP.

    PowerTraining metrics

  • Understanding FTP: VLaMax vs VO2 max

    Two riders with the same FTP can need opposite training. How VLaMax and VO2 max shape threshold, and what that means for your plan.

    PowerTraining metrics

  • How to actually raise your anaerobic threshold

    The physiology behind a higher FTP — mitochondrial density, capillary growth, and why work close to threshold and HIIT both earn a place in a plan.

    Training metricsPowerIntervals

  • FTP: why does it matter?

    What functional threshold power actually represents, why it anchors every training zone, and what it does and does not tell you.

    Training metricsPower

  • The pitfalls of FTP testing

    Twenty-minute tests, ramp tests and software modelling all give different numbers. Where each protocol misleads, and how to test well.

    PowerTraining metrics

  • Why does cadence matter?

    What changes in the muscle at 70, 90 and 110 rpm, why riders self-select different cadences, and what that means for how you train.

    PowerTraining metrics

  • What is lactate?

    Lactate is not what causes the burn, and it is not a waste product. What it actually is, and why that changes how you read a threshold test.

    Training metrics

  • What are the power training zones?

    A plain guide to cycling power zones — what each one trains, how they are set from FTP, and what a session in each should feel like.

    PowerTraining metrics

  • What is power, and why do we train with it?

    Why watts became the reference measure in cycling, and what power tells you about a ride that heart rate and perceived effort cannot.

    PowerTraining metrics

How training is structured

Indoor and Zwift

Strength and recovery

Fuelling and nutrition

Events and racing

Training guides

New training guides, as they go up

Shayne writes about how training actually works — thresholds, intervals, fuelling, strength. Get each new guide when it is published.

No spam. Unsubscribe in one click.