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Walking Burns as Many Calories Per Kilometre as Running — Here's the Biomechanics That Explains Why

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.

Jun 26, 2026
Why 10,000 Steps on a Hill Burns Far More Than 10,000 Steps on Flat Ground: Gradient and Calorie Reality

Why 10,000 Steps on a Hill Burns Far More Than 10,000 Steps on Flat Ground: Gradient and Calorie Reality

Walking uphill burns substantially more calories per step than flat walking — but most step-to-calorie calculators don't account for this. A 70 kg person walking brisk on flat ground burns ~315 kcal/hour; the same person hiking uphill at 10% grade burns ~525 kcal/hour for the same steps. Here's the physics of vertical work, how MET values capture gradient, why GPS devices estimate terrain calories better than accelerometers alone, and the descending asymmetry (downhill costs fewer calories but isn't free).

Jun 16, 2026
How Step Counters Actually Work — and Why Your Phone and Smartwatch Never Quite Agree

How Step Counters Actually Work — and Why Your Phone and Smartwatch Never Quite Agree

A smartphone in your pocket and a fitness tracker on your wrist can disagree by 10-20% on the same walk — and neither is necessarily "wrong." Here's how accelerometer-based step counting actually works, why wrist-worn and hip-worn devices have different error patterns, what validation studies show about accuracy, and why trend-tracking matters more than absolute numbers.

Jun 16, 2026