If you want to be a faster, more fit runner, speed interval training once a week is the key. Give it a try and let us know how it went in the comments. This was my first week back after 2 months off of running while recovering from a pulled hamstring and sprained ankle. I ran 5 one-minute intervals at 9mph, walking 2 minutes in-between. #speedintervals #runtraining #runfaster #mifitclub #getinshape #healthandfitness #longevity #morsefitness #trainsmart #OscodaRunning | Michigan Fit Club

A 30 minute workout to make you a stronger runner! 🏃‍♂️ Simple format. Rest 1 minute between exercises, lift heavy and complete 4 rounds. Stronger runners can be built from home! | London Fitness Guy

Jim Fixx | Marc Lefrançois