Rucking for Fat Loss, Strength, and Sanity — No Gym Required

Rucking is the simplest workout most people have never tried: walk with weight.

Carry a loaded backpack or wear a weighted vest, then get outside and move. It builds strength and endurance while making an ordinary walk more challenging. No gym required.

I’m Preston, founder of Rucking.Pro. I used to weigh 250 pounds. Rucking, strength training, and disciplined nutrition helped me lose 90 pounds. These days, I train with a weighted vest and rucking pack—and share what I learn along the way.

📱 The Rucking App — Now on iPhone and Android

Put on the weight. Hit Start Ruck. Get moving.

The Rucking app goes beyond a calorie calculator. You can track a ruck as it happens, see your route and distance, and watch your estimated calorie burn update while you move.

Both versions include:

Live ruck tracking with GPS distance and route
Calorie estimates that account for the weight you carry
Backpack and weighted-vest options
A manual calorie calculator for workouts you didn’t track live
A weight-loss calculator to help plan toward a goal
Past rucks and workout details you can review afterward
Health integration: Apple Health on iPhone and Health Connect on Android

Whether you’re carrying 20 pounds around the block or putting in miles with a heavier load, the app is built to track the work you’re actually doing.

iPhone: Download Rucking Calorie Calculator on the App Store

Android: Download Rucking on Google Play

Click below to download it

Rucking Android app promo showing the Start Ruck screen and Google Play download badge — Track your rucks, carried weight, distance, and estimated calories. Download the Rucking app on Google Play.

❓ What Is Rucking?

Rucking means walking with a loaded rucksack, ruckpack, or weighted vest.
It’s the perfect collision of strength training, cardio, and real-world movement — and it works extremely well for fat loss.

You don’t need a gym, a treadmill, or complicated routines.
You just need some weight, decent shoes (or none — I ruck barefoot sometimes), and the willingness to move.

🔥 Why Try Rucking?

Burns more calories than walking
Keeps your heart rate in the ideal fat-burning zone
Strengthens legs, core, and back naturally
Improves posture and grip
Mental toughness + stress relief
Low-impact alternative to running
Works anywhere — sidewalks, gravel, trails, and hills

I ruck because it keeps me grounded, strong, and sane.

How I Lost 90 Pounds (and got below 10% body fat)

Rucking Before and after Photo — rucking before and after photo

My name is Preston Shamblen. I lost 90 lbs with rucking, strength training, and outdoor work. No TRT. No steroids. No shortcuts. Just reps, miles, and consistency.

Here’s the part most people don’t get: the hardest fat to lose is the last bit. That’s where rucking became the weapon. It’s low-impact, it’s repeatable, and it keeps you in that fat-burning zone without constantly smashing your joints or burning yourself out.

I tried doing it “too fast” at times — biking hard, pushing intensity too high, trying to force the scale down. The problem is that when you live in “redline cardio” nonstop, you can end up burning muscle, wrecking recovery, and losing momentum. I learned the hard way that being too eager can backfire.

Rucking is different.
It’s more calculated. It builds strength while you cut fat. It’s steady progress with fewer steps backwards.

What rucking did better than most cardio for fat loss:

Keeps heart rate in the fat-burning zone longer (without spiking into redline every 2 minutes)
Low impact compared to running (easier on knees/feet)
Strengthens legs, core, back, and posture while you’re burning calories
Easy to recover from, so you can do it more often
Progressive overload is simple: add a little weight, or add distance, or speed up slightly

Running and biking absolutely have their place — I still do them — but if your goal is lean + strong (not just “lighter”), rucking is one of the most efficient tools I’ve ever found.

🎒 My Rucking Setup

I ruck almost daily with:

Wolf Tactical weighted vest — 50 lbs in steel plates
CamelBak Motherlode pack — another 50+ lbs when training heavy
Apple Watch Ultra 2 — for heart rate and zone tracking
GoPro — to film challenges and heavy-load tests

Want to see it in action?
Here’s my 105 lb rucking challenge:

Gear guides and full builds are coming soon.

🧢 Quick Gear Picks

Ruck Like I Do:

These are the exact products I use in my daily training. Every link supports the site.

🧍‍♂️ Rucking for Beginners

New to rucking? Start light.

Most beginners start with:

15–30 lbs in a backpack or rucksack
1 to 2 miles on a sidewalk, trail, or around the block
20–30 minutes a few times per week

You’ll still get:

Increased calorie burn
Improved posture and stability
A surprisingly effective mental reset

You can use sandbags, dumbbells, bricks, or anything you’ve got at home. You don’t need expensive gear to start — just weight + walking = rucking.

My [Beginner Rucking Guide] is coming soon and will walk you through gear, weight recommendations, and how to avoid injury while building endurance.

📊 How Many Calories Does Rucking Burn?

Rucking burns significantly more calories than walking — especially with extra weight.

Here’s a quick example from my real-world data:

I carry 50 lbs daily using a weighted vest.
That alone doubles my calorie burn compared to walking without weight.
A typical ruck at my weight (165 lbs) for 1 hour burns ~650–800 calories with a 50 lb load — depending on pace and terrain.

Even 20–25 lbs can give you 40–60% more burn than regular walking.

👉 Want exact numbers for your body weight, pack, and distance?
Try the Rucking Calorie Calculator

🚫 Wait — Can’t I Just Run to Burn More?

Yes, running burns more calories per minute. But here’s the catch:

You spike your heart rate, which shifts your body into sugar-burning mode
If you’re in a calorie deficit (trying to lose fat), your body often starts breaking down muscle for fuel — a process called gluconeogenesis
That means more hunger, more muscle loss, and worse results long-term

Rucking avoids that spiral. It’s low-impact, keeps you in the zone, and builds strength while burning fat.

If you’re trying to lose weight, gain lean muscle, and avoid crash-and-burn cycles, rucking is one of the most effective forms of cardio you can do.

🧠 The Fat-Burning Zone: Why Rucking Works So Well

Your body burns the most fat when your heart rate stays in a steady range called the fat-burning zone.

That range is typically 60% to 70% of your maximum heart rate.

To calculate your max heart rate:
Use the simple formula: 220 - your age
For me (age 37), that means my max heart rate is 183 bpm.

So my target heart rate range for burning fat is:

60% of 183 = 110 bpm
70% of 183 = 128 bpm

I use my Apple Watch Ultra 2 to track this in real time while rucking. I consistently stay between 110 and 130 bpm. With running, I spike way over this, which causes fatigue, hunger, and muscle loss.