Fartlek vs Tempo vs Threshold vs Intervals
we reveal it all...
By Alicja Pilarska · · Training
Finally Understand the Difference (and When to Use Each on Trails) If you’ve ever stood at a trailhead wondering whether today is a “tempo day”, a “threshold session”, or just “some fartlek”, you’re not alone. Coaches and training plans throw these words around like everyone secretly agrees on what they mean.
Finally Understand the Difference (and When to Use Each on Trails)
If you’ve ever stood at a trailhead wondering whether today is a “tempo day”, a “threshold session”, or just “some fartlek”, you’re not alone. Coaches and training plans throw these words around like everyone secretly agrees on what they mean. Spoiler: most people don’t.
Here’s the simple truth, explained once and for all.
Origin: Swedish for “speed play”. Invented in the 1930s by Gösta Holmer because even Swedes get bored running steady.