2024 RunBlogRun Spring Training Program, Week 6, Day 4, I say Fartlek, You have the need for Speed!

This is Thursday, April 18, 2024. This is Week 6, Day 4. This is Fartlek Day. Gosta Holmer, a Swedish Olympian who competed against Jim Thorpe, invented this interval program for running on trails and in parks. Mr. Holmer developed it for the Swedish cross-country team in the 1930s, which did poorly in European competitions, […]