Walking might just be the most underrated form of cardio out there. You can go for a walk anywhere, anytime, in or outside of the gym, and the benefits are significant whether you stick to a steady pace or add more intensity for a greater cardiovascular challenge. Today, we are going to cover some of the incredible benefits of walking and dive into the Japanese walking method, also known as Japanese Interval Walking Training, that you can add to your weekly routine to improve your VO2 max, support heart health, reduce visceral fat, and improve your long-term health.
What Walking Does For Your Body
Walking can help with:
- Burning additional calories
- Lowering cortisol, your primary stress hormone
- Improving coordination and balance
- Supporting heart health
- Improving digestion. A short walk after eating, often referred to online as a “fart walk,” can support digestion, ease constipation, and help move gas through the digestive tract, reducing that uncomfortable bloated feeling
- Reducing post-meal blood sugar spikes. Walking 10 to 15 minutes after a meal can improve insulin sensitivity and help your body process carbohydrates rather than storing them as fat
- Supporting better sleep and more consistent energy levels
- Increasing blood flow to the brain, calming your central nervous system
Why Your Daily Steps Matter More Than You Think
Even if you are getting in solid workouts of 1 hour a day, lifting, for example, at Rocky Mountain Flex, then spending the rest of your day sitting at a desk, in the car, and on the couch keeps you largely sedentary. That sedentary time works against the calorie deficit you are building in the gym.
Increasing your daily step count is one of the simplest ways to raise your total daily calorie burn without adding more gym sessions or extra cardio. Every additional step burns more calories, and those small increases stack up significantly over time. Pair that with consistent training and good nutrition, and you create the kind of daily deficit that drives real fat loss results.
You have probably heard that 10,000 steps per day is the recommended target. That number actually originated from a Japanese pedometer marketing campaign in the 1960s rather than a specific clinical finding. However, you will find many examples online of real-world results that support the idea that walking 10,000 to 15,000 steps per day leads to noticeably greater fat loss, particularly around the midsection. Where you land in that range will depend on your body, your diet, and your current activity level.
How to Start Increasing Your Daily Step Count
Ten minutes of walking at a normal pace equals roughly 1,000 steps. If you sit at a desk for most of the day, building in short 10-minute walks between meetings is an easy way to start increasing your daily steps if you can’t go for one long walk. A walking pad at your standing desk or under your TV in the evenings is another practical option that fits into a busy schedule without feeling like extra work.
To help track your steps more accurately, consider using a wearable fitness tracker. Devices like Whoop, Oura ring, or the Apple Watch do more than just count steps; they offer other valuable biofeedback that helps you stay mindful of your movement and daily habits, such as sleep, HRV, and other factors, which can help improve your health in many ways outside of activity. Keep in mind that the calorie burn on fitness trackers are notoriously for being overly exaggerated.
Once you have a way to track your effort and begin increasing your daily movement, you can take it a step further by utilizing the incline features on the treadmills at Rocky Mountain Flex. Adding an incline is a simple way to increase your energy output a couple of days per week, allowing you to boost intensity and burn more calories without needing to increase your speed. A 5% incline can raise your calorie burn by more than 50% compared to flat walking. A 10% incline nearly doubles it. Incline walking also builds leg strength, similarly to running, but without the joint impact.
Unlike running or high-volume cardio, walking is inherently muscle-sparing. It allows you to burn fat while preserving most of the muscle mass you’ve built in the gym.
Keep in mind that more steps and more walking will not overcome a poor diet. Increased activity needs to be paired with solid nutrition to produce real changes in body composition.
A simple way to increase your step goal:
- If you are currently averaging around 3,000 steps per day, work toward 6,000
- If you are already at 5,000 steps per day, aim for 10,000
- For the greatest impact on daily calorie burn, set a goal of 10,000 to 15,000 steps per day
Why VO2 Max is the Strongest Predictor of Your Lifespan
Your cardiovascular fitness is one of the strongest predictors of long-term health and longevity, and VO2 max is the primary way it is measured. VO2 max is measured by tracking how much oxygen your body consumes as exercise intensity increases, typically through a graded exercise test on a treadmill or bike pushed to maximum effort. The number itself is expressed in milliliters of oxygen per kilogram of body weight per minute. A higher VO2 max means a more efficient cardiovascular system and a lower risk for chronic disease.
What makes VO2 max such a powerful indicator is what it reveals about how well your entire cardiovascular system is functioning. When your heart, lungs, and muscles work together efficiently to deliver and use oxygen, every system in your body benefits. When that efficiency declines, the risks compound quickly. Low cardiorespiratory fitness has been linked to higher rates of heart disease, type 2 diabetes, metabolic syndrome, and certain cancers. Some large-scale studies have found that low VO2 max is a stronger predictor of early death than smoking, high blood pressure, and obesity. A landmark study published in JAMA found that each one-unit increase in VO2 max was associated with a measurable reduction in cardiovascular and all-cause mortality risk. Put simply, the more fit your cardiovascular system is, the longer and healthier your life tends to be.
Improving VO2 Max with Intervals
Research published in Mayo Clinic Proceedings among older adults found that improvements from interval walking training were primarily driven by time spent walking at higher intensity. Participants alternated 3-minute intervals of fast walking at about 70% effort with slower walking, increasing aerobic capacity by about 14% and reducing lifestyle-related disease risk scores by 17% over five months.
High Intensity Walking and Visceral Fat
This ‘hidden’ fat, which sits deep around your organs, is highly metabolically active, meaning it directly influences your hormones, blood sugar, and inflammation levels. By bridging the gap between sedentary habits and active recovery, walking becomes an essential pillar for long-term metabolic health and a leaner midsection.
A Harvard Health article on belly fat explains that visceral fat is strongly linked to several chronic diseases, including cardiovascular disease, dementia, asthma, and certain cancers. Research shows that a larger waist size significantly increases the risk of heart disease, even after accounting for other factors like BMI, blood pressure, and cholesterol. Visceral fat is also associated with higher blood pressure, blood sugar, and triglycerides, along with lower “good” HDL cholesterol, which are key markers of metabolic syndrome and increased risk for type 2 diabetes.
Additionally, higher levels of abdominal fat have been linked to a greater risk of dementia, asthma due to inflammation, and certain cancers, including breast and colorectal cancer. Overall, visceral fat is not just a cosmetic concern. It plays a major role in long-term health risks.
High-intensity exercise has been shown to help decrease waist size by reducing overall belly fat, including dangerous visceral fat. The Japanese Interval Walking Method captures these same benefits through a low-impact structure, making it possible to get high-intensity results without the wear and tear that comes with traditional cardio. Here is what the research shows it can do:
Benefits of the Japanese Interval Walking Method
- Increases aerobic capacity (VO2 max) by around 14%
- Reduces lifestyle-related disease risk scores by around 17%
- Improving blood pressure up to 3 times more effectively than steady-state walking when done as intervals
- Improves insulin sensitivity and metabolic health markers
- Increases leg strength
- Improves overall cardiovascular fitness
How to do the Japanese Interval Walking Method
- High-Intensity Interval: 3 minutes at a brisk pace where talking is difficult (70-80% max heart rate)
- Low-Intensity Interval: 3 minutes at a slow, comfortable pace where you can talk easily (40-50% effort)
- Engage your glutes as you walk
- Pump your arms to increase energy expenditure
- Keep your chest up, shoulders back, and core engaged
Train With Us in Denver
If you are in Denver and looking to improve your VO2 max, decrease body fat, get stronger, or all of the above, connect with one of our personal trainers at Rocky Mountain Flex. Our personal trainers are available to build a program tailored specifically to your goals, your body, and your lifestyle. We invite you to take advantage of our 7-day trial membership to explore our facilities and community firsthand.
