Fartlek Training

Fartlek is Swedish for Speedplay and was developed in 1937 by Swedish coach Gösta Holmér. Whilst I recommend you google it and learn more about it and the more advanced methods and styles this challenge (4 weeks of Fartlek training)  is going to stick to a very simple form of Fartlek training. 
It involves interval training on a treadmill, track or road, however a treadmill is preferred as you can monitor your speeds better.

Started running on the beach/sand this week. 😁😝 Upside: my knee hasn’t been hurting at all. 👍Downside: my calves burn and my Achilles’ tendons are feeling it. 👎Overall, I’ve decided I like this better than going to the crowded, “resolutioner”-filled gym. 👌 #IHazTired #NewportBeach #IntervalRunning #MoonlightIsSoPrettay 🌕 #ButIStillWannaLift (at Newport Beach)