A great article from the American Trail Running Association. https://trailrunner.com/trail-news/growing-older-with-trail-running-advice-from-a-70-year-old-athlete/
Running
http://www.espn.com/espnw/culture/article/27073873/103-year-old-runner-julia-hurricane-hawkins-bikes-bucket-list-brooklyn-bridge When someone says they didn't start running until "late in life", we don't expect that to be after their...
https://www.runnersworld.com/news/a25593341/70-year-old-marathon-record/ No matter your age, there's always somebody older that you can look to for inspiration.
http://www.weekendtriathlete.com/blog/how-to-best-prepare-for-your-first-triathlon I'm a strong believer that training like a triathlete--even if you have no interest in competing in a triathlon--is...
http://www.triathlete.com/2017/05/training/train-5-top-age-groupers-share-favorite-workouts_301387 From serious interval workouts to simply commuting to work by bike - some great tips from some outstanding age-groupers.