Walking Burns as Many Calories Per Kilometre as Running — Here's the Biomechanics That Explains Why
Walking burns approximately the same calories per kilometre as running — because running is twice as fast but twice as many calories per minute, netting out the same per distance. The pendulum mechanics of walking and spring-bounce mechanics of running are fundamentally different energy systems that happen to converge at similar efficiency per unit distance. Here's the biomechanics, why brisk walking is the most efficient gait, the NEAT advantage of higher step count, and why fitness trackers give different calorie estimates for the same steps.