Rucking vs. Running: Pros and Cons Rucking and running each build character, improve fitness, and positively effect mental health, but they're functionally quite different. Which burns more calories? Which is easier on my knees and back? Can I do both? Let's answer some common questions and check out some pros and cons of rucking vs. running. 1. Injuries & Longevity Perhaps the most important questions in the rucking vs. running conversation surround injuries. As more and more runners take to...