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Walking Can Build Muscle and Burn Fat, Science Says

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  Published in Health and Fitness on Wednesday, November 26th 2025 at 8:46 GMT by Bowl of Quick Cook

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Walking for Muscle and Fat: What the Science Really Says

A growing number of people are turning to walking as their go‑to exercise, hoping it will help them build lean muscle, burn stubborn fat, and improve overall health. A recent article on MSN Health explores the evidence behind the claim that walking can do more than just keep you moving—specifically, whether it can actually build muscle and help with fat loss. The piece blends current research findings with practical advice, making it a useful resource for anyone looking to optimize their walking routine.

The Basics: How Walking Affects Muscle

The article begins by addressing the common misconception that walking is “too easy” to develop muscle. It points out that while walking is indeed a low‑impact activity, it engages a number of muscle groups, especially the calves, quadriceps, hamstrings, glutes, and core. According to a 2017 study from the American College of Sports Medicine, consistent walking at a moderate intensity can increase muscular endurance in the lower body—though the changes in muscle size (hypertrophy) are modest compared to resistance training.

The key factor is intensity. The MSN piece cites research showing that walking at 65‑75 % of maximal heart rate (roughly 3.5–4.5 mph on a flat surface) can stimulate muscle fibers enough to trigger mild adaptations. The article references a more recent 2021 meta‑analysis that found walking at this intensity, performed 4–5 times per week for 30‑45 minutes, led to measurable increases in lean body mass in older adults. Importantly, these changes were most pronounced in individuals who were initially sedentary, suggesting walking can help mitigate age‑related muscle loss (sarcopenia).

Walking and Fat Loss: The Calorie Connection

When it comes to burning fat, the article underscores that calorie expenditure is the primary driver. A 2020 review published in Sports Medicine demonstrated that a 30‑minute walk at 3.0 mph can burn roughly 150 calories in an average adult, whereas a brisk 5‑minute walk can burn up to 100 calories—comparable to a light jog. The article explains that while walking is less intense than running or cycling, its longer duration can create a moderate calorie deficit when performed regularly.

The MSN piece also discusses post‑exercise oxygen consumption (EPOC). Though walking induces a smaller EPOC compared to high‑intensity interval training (HIIT), the cumulative effect over the week can still contribute to net fat loss. Moreover, walking improves insulin sensitivity, which helps the body manage glucose more efficiently, preventing excess glucose from being stored as fat.

How to Walk Like a Muscle‑Builder

The article moves beyond theory to give readers actionable tips:

1. Add Incline or Hills – Walking uphill forces the calves and glutes to work harder, effectively turning the walk into a low‑intensity resistance session. Even a 3% incline on a treadmill can elevate muscle activation.

2. Use Walking Poles – A 2019 study found that pole walking can engage the upper body and core more significantly, offering a full‑body stimulus without the joint impact of running.

3. Incorporate Strength‑Based Variations – Simple body‑weight exercises such as wall sits or step‑ups performed during breaks can boost muscle engagement. The article references a home‑based protocol combining walking with “micro‑sessions” of resistance moves.

4. Maintain a Consistent Pace – Rather than alternating between slow and fast, aim for a steady 4.0 mph pace for at least 30 minutes, 5 days a week. The MSN article quotes Dr. Laura K. O’Donnell (University of Arizona), who notes that consistency leads to better adaptations than sporadic, intense bursts.

5. Track Your Heart Rate – Wear a smartwatch or use a heart‑rate monitor to stay within the 65–75 % target zone. The article links to a guide on setting heart‑rate zones for walking.

The Role of Walking in a Holistic Fitness Plan

While walking can support muscle endurance and aid in fat loss, the article emphasizes that it is most effective when combined with other forms of exercise. A balanced routine might include:

• Resistance Training – 2–3 sessions per week with free weights or resistance bands to target hypertrophy more directly.
• Flexibility Work – Yoga or dynamic stretching to keep joints mobile.
• Mind‑Body Practices – Meditation or breathing exercises to reduce stress, which can indirectly influence body composition.

The MSN piece also references a link to a WHO guideline on “Physical Activity for All Ages,” underscoring that walking is a cornerstone of global health recommendations.

Real‑World Success Stories

To illustrate feasibility, the article profiles a few everyday walkers. One story follows a 55‑year‑old accountant who, after starting a 30‑minute walk daily with a slight incline, noticed increased leg strength and a 4‑lb reduction in waist circumference over 12 weeks. Another case study highlights a middle‑aged mother who added resistance band walks, leading to a measurable increase in gluteal muscle mass as confirmed by DEXA scans.

These anecdotal accounts reinforce the article’s central thesis: walking, when performed with intentionality and paired with minor resistance elements, can indeed contribute to building muscle and burning fat—especially for those who are new to exercise or prefer low‑impact activities.

Bottom Line

The MSN article concludes that while walking alone may not replace a dedicated gym routine for maximal muscle hypertrophy, it is a powerful, accessible tool for improving muscle endurance and supporting fat loss. By incorporating inclines, using walking poles, or pairing walks with light resistance work, walkers can harness the full potential of this ubiquitous activity.

For anyone looking to step up their health, the takeaway is clear: lace up your shoes, set a consistent pace, and consider a few simple variations to turn a familiar stroll into a strategic muscle‑building and fat‑burning workout.