![man running downstairs](https://d2z0k43lzfi12d.cloudfront.net/blog/vcdn250/wp-content/uploads/2019/04/thumbnail_blog_1200x800-5-1-400x267.jpg)
Are you ready to push your running performance up to the next level? Try a fartlek run or fartlek training and watch your running improve.
The post Fartlek: Improve Your Running with Speed Work appeared first on Runtastic Blog.
The post Fartlek: Improve Your Running with Speed Work appeared first on Runtastic Blog.