Critical power and W′: the two numbers behind every attack
Critical power is the line between sustainable and unsustainable effort; W′ is the reserve above it. How to estimate both and use them to train and race.
Read
Race analysis: how to read a race file after the finish
A race file holds the story of the race in numbers. How to find the moments that decided it, count surges, check durability and turn it into actions.
Read
The power curve explained: what your hardest efforts say
How a cycling power curve is built from your hardest efforts, what its shape says about your strengths, and how to tell a real weakness from an untested one.
Read
Durability in cycling: why late-race power decides races
Fresh test numbers do not win long races. What durability is, how to measure the power you keep after hours of riding, and how riders train it.
Read
What is FTP? Functional threshold power, explained
FTP is the power you can hold steadily for a long effort. How it was defined, how to test it, how it differs from lactate threshold, and when it misleads.
Read
HRV training: should one number decide today's ride?
What heart rate variability measures, what HRV-guided training studies found, how to take a clean morning reading, and why weekly trends beat single days.
Read
Zone 2 training for cyclists: the science and the practice
What zone 2 means in power, heart rate and lactate, what research on professional riders shows, how much to ride and how to check it in your data.
Read
Cycling aerodynamics: lessons from the hour record
On flat roads, air is most of what slows you. What the hour record teaches about CdA, position and testing, and how to measure your own drag.
Read
Polarised training: what the 80/20 research says
Polarised, pyramidal or threshold? What the studies show, why the way you count intensity matters, and how to use it on 6 to 10 hours a week.
Read
Heart rate vs power: which should you train with?
Power measures the work, heart rate the cost. When each is the better guide, why heart rate drifts, and how aerobic decoupling puts the two together.
Read
Cycling training zones: power and heart rate made simple
Coggan's seven power zones, heart rate zones from your threshold heart rate and the three-zone model, with worked numbers and what each zone trains.
Read
Watts per kilo: why climbers live by one number
On a steep climb, power per kilogram decides who reaches the top first. How W/kg, VAM and climb times connect, and where the number misleads.
Read