After John Korir won the 2025 Boston Marathon, runners flocked to his Instagram to learn more about the 28-year-old’s training. Yes, there were the typical postrace photos with trophies and training ...
Box jumps: Pick a stable surface that you can jump onto and land safely (use a step, bench in the gym, low wall outside, etc). Start in a squat and jump from both feet to land on both feet in a squat ...