Balancing Marathon Training: The Role of Walking vs. Running
Aug 13, 2026
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**Rethinking Training: The Balance Between Running and Walking**
Training for a marathon can often lead to anxiety over missed workouts. I found myself grappling with this concern as I prepared for the Sydney Marathon. While it's standard advice from coaches that perfection isn't necessary in following a training plan, I was acutely aware of the importance of sticking to my regimen. My primary aim was to enjoy the marathon experience, ensuring I felt adequately prepared to avoid a painful struggle on race day.
Recently, I had a moment of clarity about this issue while lamenting a missed run. A friend pointedly reminded me, “Didn’t you walk five miles today?” Upon checking my Apple Health app, I realized that he was right. Living and commuting in New York City, accumulating several miles on foot is generally par for the course.
This got me pondering: Is a full day's walk equivalent to a simple, easy run? Conversely, if I walk five miles and still manage to squeeze in a five-mile easy run, am I overdoing it? To unpack this idea, I consulted both a running coach and an exercise physiologist to understand how walking and running affect our bodies differently.
**Understanding the Physiological Differences**
Walking and running trigger different physiological responses, and understanding these nuances is crucial for any serious contender. Jason Machowsky, a recognized exercise physiologist, explains that various training zones target specific adaptations in the body. For example, Zone 2, encompassing brisk walking or light running, is key for cultivating aerobic capacity, while deeper zones focus on intensity and lactate threshold improvement.
It's interesting to note that lower-intensity activities like walking won’t provide the same physiological gains as running, even if the distances are similar. Walking doesn’t allow for high-intensity exercise, which is essential for significant fitness advancement. According to a study published in the *European Heart Journal*, moderate to vigorous activity is an impressively effective marker for enhancing fitness, outperforming simple walking by a factor of three.
Form also plays a role. You have to practice running to see improvement in it—this is grounded in the principle of specificity. Simply put, the more you run, the better you understand your stride mechanics, which translates to better performance on race day. As Machowsky emphasizes, effective practice is what leads to improvements.
**Can Walking Substitute for Running?**
From a practical standpoint, replacing runs with walks isn't something Machowsky advocates frequently, primarily because running builds the fitness required for marathon success more effectively than walking. Nevertheless, certain scenarios do call for it. If your training mileage is already substantial—perhaps running over 40 miles weekly—it may occasionally benefit you to swap some easy runs for a brisk walk without compromising your overall progress.
If your total weekly mileage is higher, say walking a few miles wouldn’t significantly impact your regimen. As Machowsky explains, this is particularly valid when you're fatigued; reducing intensity can be sensible for recovery without derailing your performance.
Energy management is another key consideration. Occasionally opting for a walk instead of a run can allow you to conserve energy for those essential workouts that demand maximum effort, such as tempo runs or long distances.
On the other end of the spectrum, dealing with injuries is another area where swapping a run for a walk is sensible. If you’re feeling sore or even on the brink of injury, pushing yourself too hard could lead to long-term setbacks. It's better to take it easy with a walk rather than risk an injury that could sideline you for much longer.
**The Impact of Extra Walking**
That said, there’s a difference between intentional walking miles and the unintended effects of urban living, which can lead to inadvertently adding many walking miles on top of your running schedule. For instance, both Machowsky and fellow trainer Greg Laraia often find themselves unintentionally nearing ten thousand steps daily, which can create a cumulative impact on their overall training.
Whether this extra walking aids or hinders your training largely depends on your body's adaptation to such activity. If you’re accustomed to walking alongside your running, you might see little to no negative effects. However, increasing your walking volume dramatically while training for a marathon could increase your risk of overtraining, leading to fatigue and potential injuries.
Interestingly, should someone find themselves walking significantly during a training block, adjustments in running mileage may be beneficial. The cumulative effect of activity—stressing joints and muscles—can impede performance even if you don’t feel fatigued. Over time, too much walking, alongside marathon-specific training, could lead to various stress-related injuries.
Ultimately, striking the right balance between walking and running while remaining attentive to your body’s signals is vital for a successful marathon experience and, importantly, for long-term health.
Source:
Michael Jones
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https://www.runnersworld.com/training/a73428987/walking-marathon-training-miles/