Rucking Workout: How to Start, How Much Weight to Carry, and How to Progress

Rucking is walking with a weighted backpack, and it works because it turns an ordinary walk into a loaded, low-impact conditioning session. Most beginners should start with about 10% of bodyweight in the pack, walk 20-40 minutes, 2-3 times a week, and add distance before adding weight.

What Is Rucking

Rucking comes from military "ruck marching" — moving on foot with a loaded rucksack — but the version that has spread into general fitness is simpler: pick a backpack, load it with plates or sandbags, and walk. No treadmill incline setting, no special trail, no running required.

What makes it a distinct training method rather than just "walking with a bag" is the load. Adding external weight increases the metabolic and muscular demand of walking without adding the impact forces of running, which is why it shows up as a recommendation for people who want a harder cardio session but want to protect their knees, or who want to add a joint-friendly conditioning day between heavier lifting sessions.

Why Rucking Works

Two things happen when you load a walk: your heart rate and oxygen consumption climb, and your legs, hips, and core have to stabilize against the extra weight the entire time.

A 2022 physiological review in Physiological Reports (Faghy et al.) found that adding load to walking or marching consistently raises oxygen uptake and heart rate compared to the same pace unloaded, with terrain making a large difference — energy cost measured in that line of research jumped from roughly 5.1 kcal per minute on level ground to roughly 7.4 kcal per minute uphill under load, which works out to a rough range of 300-450+ kcal per hour depending on grade, pace, and load. That is a meaningful conditioning stimulus from an activity that still feels like "just walking."

The fitness benefit is not only aerobic. A 2019 study in the Journal of Strength and Conditioning Research (Wills et al.) put 15 healthy adult men through a 10-week program combining resistance training with loaded walking and found significant improvements in estimated VO2max, squat jump force, push-ups, and sit-ups — plus a measurable drop in how hard the loaded walk felt afterward. In other words, the body adapts to loaded walking the same way it adapts to other progressive training: it gets more efficient and stronger at the specific task.

Rucking sits in the same low-intensity, sustainable-effort category as zone 2 cardio, but adds load-bearing work for your legs, hips, and grip that plain walking or easy cycling doesn't provide.

How Much Weight to Carry

Start light. A common and sensible starting point used across both coaching guidance and rucking communities is about 10% of your bodyweight — for a 75 kg (165 lb) person, that's roughly 7-8 kg (15-18 lb). That is a practical starting range, not a hard scientific threshold, so treat it as a default to adjust from rather than a rule.

There's a real reason to start conservative. A 2017 biomechanics study in the International Journal of Exercise Science (Strube et al.) found that loads in the 16-20.5 kg range significantly increased postural sway — a measure of balance instability — during standing and walking tasks, and noted that musculoskeletal injuries are common specifically among people with less load-carriage experience. Military guidance allows experienced personnel to carry up to 45% of bodyweight on long marches, but that number reflects years of progressive conditioning, not a beginner's first few sessions. If your goal is a sustainable weekly habit rather than a one-off gut-check, build up gradually.

A simple progression that respects that research:

Weeks 1-2: about 10% bodyweight, 20-30 minutes, 2x per week.

Weeks 3-4: about 10-15% bodyweight, 30-40 minutes, 2-3x per week.

Weeks 5-8: about 15-20% bodyweight, 40-60 minutes, 2-3x per week.

Week 8 onward: 20%+ bodyweight, only once sessions feel fully pain-free at the prior load, 45-60+ minutes, 2-3x per week.

Add distance or duration before you add weight. If a session leaves your lower back sore rather than just fatigued, that's a signal to drop back a step, not push through it.

Building a Rucking Routine

Rucking fits most easily into a week as either a standalone cardio session or an active-recovery day between harder lifting or running sessions. It doesn't require the same recovery time as running at the same duration, because the joint impact is much lower — but the loaded carry still fatigues your legs and lower back, so don't stack it directly before or after a heavy squat or deadlift day.

A workable weekly template for someone adding rucking to an existing training routine:

1-2 rucks per week of 30-45 minutes at a light-to-moderate load, placed on days you'd otherwise do easy cardio.

Progress distance first, load second, using the same progressive overload principle you'd apply to any other lift — small, consistent increases beat sporadic jumps.

Keep your pace conversational. Rucking is meant to be a sustained, moderate effort, not an all-out push; if you can't hold a conversation, you're moving too fast for the load you're carrying.

If a stretch of ruck sessions has left your legs and lower back consistently tired rather than just working, treat it like any other training block and schedule a deload week rather than pushing through accumulated fatigue.

If you're following a HYROX training plan, rucking is a natural cross-training addition — several HYROX stations (the sled push, the farmer's carry) demand the same loaded, sustained-effort tolerance that rucking builds.

Common Mistakes

Loading too heavy, too soon. The research on postural instability under load is clearest on this point: your balance and control degrade under weight you haven't adapted to, well before you feel "tired." Build tolerance gradually.

Wearing a normal daypack. Standard backpacks aren't designed to carry dense weight close to your spine and tend to sag, shifting the load and your posture. A rucking-specific pack or a plate carrier keeps the weight high and tight against your back.

Ignoring footwear. Loaded walking increases the force through your feet and ankles with every step. Worn-out or unsupportive shoes are a common source of shin and foot pain in new ruckers.

Treating it as a substitute for strength training. Rucking builds carrying capacity for your legs, hips, and grip, but it isn't a replacement for structured resistance training. It complements a lifting program; it doesn't replace one.

Skipping a warm-up. A short warm-up walk without load, plus a few minutes of hip and ankle mobility work, reduces the odds of starting a loaded session with a stiff, cold gait pattern.

Do You Need Special Gear?

Not much. A sturdy backpack, something to add weight (a weight plate wrapped in a towel, a sandbag, or a purpose-made ruck plate), and supportive walking shoes cover the essentials. Dedicated ruck plates are worth it once you're carrying more than about 10 kg regularly, since they sit flat against your back instead of shifting like loose weights or books. Beyond that, no gym, no machines, and no specific terrain are required — rucking works on a sidewalk, a trail, or a treadmill.

Carrying a loaded pack for 30-60 minutes is also a legitimate grip strength training stimulus in its own right, since your hands and forearms are working to keep the pack's straps and your posture stable for the entire session.

Tracking Rucking Progress With MyTrainer

Because rucking progress is a mix of distance, load, and pace rather than a single number like a 1-rep max, it's easy to lose track of by feel alone. Log each session's distance, pack weight, and duration in MyTrainer the same way you'd log any other workout, so you can see load and distance trending up over weeks rather than guessing whether last month's rucks were actually easier.

FAQ

Does rucking really build muscle?

Rucking is primarily a conditioning and endurance activity, not a hypertrophy tool — the load and rep ranges (an entire walk under moderate, continuous tension) don't match what drives significant muscle growth. It does build meaningful muscular endurance in the legs, hips, core, and grip, and can support general strength work, but it shouldn't replace dedicated resistance training if building muscle is a primary goal.

How far should I ruck as a beginner?

Most beginners do well starting with 20-30 minutes, or roughly 1.5-3 km (1-2 miles), at a light load, and building duration before adding distance targets like 5 km. There's no fixed "correct" starting distance — comfort and recovery the next day are better guides than a specific number.

What are the downsides of rucking?

The main risks are the same as any loaded, repetitive-impact activity: overuse injuries to the lower back, hips, knees, and feet if load or duration increases too quickly, and postural strain from an ill-fitting pack. These risks are highest in the first few weeks, before your body has adapted to carrying load, which is why a conservative starting point matters more than an aggressive one.

Is a 20-pound ruck good?

For many adults, 20 lb (about 9 kg) is a reasonable working load once you're past the first few weeks — it's above the typical 10% bodyweight beginner starting point for someone in the 180-200 lb range, but well below loads associated with the postural instability seen in research on heavier, military-style loads. Whether it's "good" for you specifically depends on your bodyweight and how many weeks of consistent rucking you already have behind you.

Author and Reviewer Note

This article was prepared by the MyTrainer coaching team and reviewed for accuracy of exercise guidance and citation data. All cited studies were retrieved firsthand from PubMed/PMC. This content is for informational purposes and does not substitute for advice from a qualified medical or fitness professional, particularly if you have an existing back, hip, or joint condition.