for example, in this picture, the 'X' represent the shoulders identified by this method - its clear these happen when the curve takes a dive from flat/positive to negative

(nb a couple are missed due to the 3s smoothing we applied)

essentially, when you look at the PD relationship derived from real-world data you don't get a smooth curve; you get parts of the curve where it is flat (same MMP for multiple durations) and parts when it suddenly drops (the point between where its flat and where it drops suddenly are 'shoulders'

How it started vs how it ended

Ignore what the press and critics say…this is an incredible classics campaign

Name the mountain

Big avalanche issues coming up on shady slopes after the next snowfall

Me as as coach and sports scientist: ‘it’s important to progressively increase training’

Also me with my own training….

Jacob Eriksson won Swedish Nationals wearing a Tudor watch this year

@drmarkburnley.bsky.social - look what you’re missing over on Twitter