Why Running is Better Than Walking: 8 Reasons

Running and walking are both excellent forms of exercise — but they are not the same. In this article, we explore eight reasons why running delivers unique health and fitness benefits that walking alone cannot match.

For most people, most of the time, walking is the more practical, accessible, and sustainable choice. But if your body can handle it, running delivers a set of physiological changes that walking simply cannot replicate. 

The greater stress it places on your heart, lungs, bones, muscles, and nervous system is not a downside — it’s the driving force behind its health benefits.

#1.  More health benefits per minute of exercise

Running can burn three times as many calories per minute, and up to twice as many calories per mile. Studies have shown similar health effects between walkers and runners when the total amount of calories burned is the same. However, running beats walking when the total amount of time spent exercising is the same.^[1]

Put simply, a 30-minute run produces greater health benefits than a 30-minute walk. In fact, a 15-minute run will probably beat, or at least equal, the health benefits of a 30-minute walk.

So, for people with busy lives who don’t have time for exercise, running is a more efficient use of that time, as the same cardiovascular and metabolic health benefits can be achieved in half the time.

Pro Tip: The current physical activity guidelines recognise this — 75 minutes of vigorous activity (like running) per week is considered equivalent to 150 minutes of moderate activity (like brisk walking).^[2]

#2.  Superior cardiovascular adaptations

Running places a substantially higher demand on the heart and blood vessels than walking does. 

Over time, this greater stress usually produces greater cardiovascular adaptation: stronger, more efficient heart muscles, lower resting heart rate, better (more flexible) blood vessels, lower blood pressure, and better circulation.

Higher-intensity exercise has been shown to produce superior improvements in cardiovascular risk markers compared to moderate-intensity exercise, even when the total amount of exercise is the same.^[3] 

For people looking to meaningfully improve their heart health, not just maintain it, running will be a more powerful exercise to improve their health.

#3.  Running improves VO2max more than walking

VO2max, the maximum volume of oxygen your body can use during intense exercise, is one of the single strongest predictors of long-term health and longevity, and you can meaningfully improve it. Low VO2max is associated with increased risk of many diseases, reduced quality of life and reduced life expectancy.

Walking can modestly improve VO2max in people who are inactive. But running, at moderate-to-hard efforts, is one of the most effective and efficient ways to improve VO2max. 

A higher VO2max means your heart, lungs, and muscles operate more efficiently at every exercise intensity — including during everyday activities (making them easier to do). So, improving it through running is one of the best long-term investments you can make in your health.

Workout — VO2max builder

After a 5-minute warm-up walk, run at a "comfortably hard" pace (you can speak only in short phrases) for 20–30 minutes, three times per week — progress by adding 5 minutes every week or two. Read our articles on how to improve your VO2max and how to calculate and use training zones to improve your training

#4.  Running builds stronger bones — especially as you age

Bone is a living tissue that responds and adapts to the demands placed upon it. When your bones are repeatedly exposed to stress (via impact forces), they’ll adapt and get stronger. While walking does stimulate bone-building benefits, the higher forces that your body is exposed to during running produce a stronger signal to improve bone strength and bone density.^[4]

This matters more as you get older. Osteoporosis affects a lot of seniors and significantly increases fracture risk. Running regularly and starting earlier in life can help build and preserve bone health. For those at risk of osteoporosis who cannot run, brisk walking is still beneficial — but for those who can run, it offers more benefits for your bones.

#5.  Running builds and strengthens your muscles

Running engages all the muscles of the lower body (glutes, hamstrings, quadriceps, calves), putting them under greater load than walking does. This greater demand over time translates to greater muscle strength, endurance, and coordination.

Greater muscle mass and strength are associated with better health, functional capacity, and lower injury risk as you age. The “propulsive phase” of running, where you push off the ground, activates your calves, glutes and hamstrings in a way that walking can’t. Running won't replace strength training benefits, but its muscular demands are meaningfully greater than walking's are.

Workout: Hill repeats for muscles 

Find a moderate incline and run uphill for 30–60 seconds at a strong effort, then walk back down to recover. Repeat 6–10 times. Hill running dramatically increases the use of your quads and calves compared to flat-ground walking or running.^[5]

#6.  Running trains your lungs more effectively

The lungs, just like the heart, bones, and muscles, will adapt to the demands placed on them. As you’re probably aware, if you’ve ever been on a hard run, it significantly increases how often and deeply you breathe, which strengthens your respiratory muscles. This improves how efficiently you breathe as you become better at extracting and delivering oxygen into your body. 

Walking doesn’t elevate your breathing rate to the same degree as running does. For people with respiratory conditions (like asthma, COPD, pneumonia or viral infections), supervised running programmes have been shown to improve lung function and general health.^[2] 

Getting oxygen into your body efficiently isn’t just for athletes and powering exercise high-end performance — it also underpins your energy levels, brain power, and resilience throughout the day when you're not exercising.

#7.  Running Suppresses Appetite More Than Walking

High-intensity exercise, like running, suppresses your 'hunger hormone' (ghrelin) for longer than lower-intensity exercise does. This means that you’ll eat less food after a hard run compared to a gentle stroll.^[6] 

For people who want to lose weight or lose fat, running may have an edge over walking. Higher-intensity exercise may make it easier for those who are following a calorie-restricted diet. 

However, don’t give up on walking entirely. Research has shown that both walking and running naturally increase the amount of the hunger-suppressing GLP-1 (the 'fat jab' hormone) and another one called PYY.

#8.  Running extends life expectancy — even at slow speeds

While both walking and running improve health, quality of life and life expectancy, the evidence on running is more convincing. Even running as little as 5 minutes a day at slow speeds (10-minute mile pace or slower) is associated with better life expectancy and lower rates of cardiovascular disease.^[7] 

Running is enough in itself to improve your health without worrying about volume, times, heart rates or your pace. Those who kept running regularly for at least 6 years were in the best health and lived longest. So the message is clear: running consistently, at any pace, is one of the most powerful single lifestyle habits you can do for a longer, healthier life.

How to start running: a beginner's guide

When starting, it shouldn’t be about speed but consistency and avoiding injury.