Rucking: Walking With a Weighted Pack

Rucking is simply walking with a weighted pack, a habit borrowed from military training that has turned into a fun fitness trend. The pitch is delightfully simple: take a walk you were going to take anyway and make it a little more of a workout. Let’s look at why it works, where the evidence is still catching up, and how to start in a way that feels good. This is general education, not medical advice.

Why it works

Adding a load to your walk raises the energy cost of every step, and the relationship is wonderfully predictable. Military researchers described it decades ago in a widely used model by Pandolf and colleagues (1977), which links energy use to body weight, the load carried and walking speed. More weight and a quicker pace both make the walk work harder. That is the heart of rucking, and it is one of the more dependable findings in exercise physiology.

Here is a fun bonus: a recent small study of special forces soldiers, reported in a summary I could not check against the paper, suggests that speed may matter more than load for how hard a walk feels. If that holds up, simply walking a little faster could do as much as adding weight, which is great news if you would rather leave the pack at home.

Where the evidence is still growing

• Rucking itself is new to researchers. There are almost no trials in everyday adults yet, so many of the hoped-for bone, heart and mood benefits are borrowed from research on walking, strength training and load carriage.
• Walking is a proven winner. A 2022 meta-analysis by Paluch and colleagues of 15 studies and 47,471 adults linked more daily steps with a lower risk of dying during follow-up. Our guides to how much walking is enough and the 10,000-steps myth tell that story.
• A heavy pack is not a shortcut. A recent trial of weighted vests during weight loss, which we describe in our weighted vest guide, did not show the extra protection some hoped for, so there is no need to load up.

Starting out comfortably

A pack adds some pressure to the spine, hips and knees that an ordinary walk does not, and most bumps along the way come from doing too much too soon. A gentle start keeps it fun.

• Start light. Many beginners begin with a small amount of weight in a snug pack and add a little over several weeks.
• Carry it well. A pack that sits high and close to your back, with a chest or hip strap, feels much better than one that swings.
• Stand tall. If you are leaning far forward or your stride is getting shorter, the load is too heavy. Lighten up and enjoy the walk.
• Check in first if you need to. If you have osteoporosis, back, hip or knee problems, balance trouble or are pregnant, a quick chat with your clinician is a smart first step.
• Keep your other workouts. Rucking is a lovely partner to the strength work in our guides to strength training for beginners and how often to lift, not a replacement.

Is it for you?

If you love the feel of a loaded walk, it is a great way to give familiar routes a new challenge and to enjoy the outdoors with a friend. If it does not appeal, no worries: brisk walking, hills and short bursts of activity, like those in our guide to exercise snacks, can give you much of the same benefit with no pack at all.

Sources

• Pandolf KB, Givoni B, Goldman RF. Predicting energy expenditure with loads while standing or walking very slowly. Journal of Applied Physiology, 1977;43(4):577-581.
• Paluch AE, Bajpai S, Bassett DR, et al. Daily steps and all-cause mortality: a meta-analysis of 15 international cohorts. The Lancet Public Health, 2022;7(3):e219-e228.
• Summaries of load-carriage research and a 2026 speed-versus-load study in military personnel (details from secondary summaries; check the papers for exact figures).