https://motivationtheoryrunning.com/blogs/blog/motivation-theory-running-a-decade-of-inspiration-on-youtube-and-our-bold-new-nbsp-expansion-for-middle-aged-and-older-endurance-athletes 2026-02-24T20:16:16-05:00 weekly https://motivationtheoryrunning.com/blogs/blog/ultra-marathon-training-explained-the-5-phases-you-actually-need-to-know 2026-02-24T20:15:24-05:00 weekly