Getting Started with Rucking in the UK: Questions Answered

Three different readers land on this page: the person who hasn’t laced up yet and wants the short version before committing to anything, the person a few rucks in who’s already sore somewhere they didn’t expect, and the person who just wants to check whether something they read elsewhere holds up. All three get answered below, with a link through to the full guide wherever the short version isn’t enough.

Is rucking better than running for my joints?

Rucking sidesteps the repetitive trauma that forces so many people to quit running, keeping your heart rate elevated without the impact that punishes the joints of anyone who has been sitting at a desk for a decade. For most UK adults over forty it’s the smarter cardiovascular bet, building strength without the shin splints and IT band issues that often accompany high-impact cardio. The load triggers adaptation in your bones and core while keeping you in a fat-burning zone that feels sustainable for longer periods. The full breakdown of where rucking wins over running and where it doesn’t covers the trade-offs in more depth.

How much weight should I start with?

The honest starting point is around 10% of your body weight, which feels lighter than most people expect but is the load your joints and tendons adapt to faster than a heavy ego lift. Your cardiovascular system adjusts relatively quickly; your joints and tendons do not, which is where pushing too hard too fast turns into pain. If you’re unsure where to begin, load a rucksack and walk three kilometres to see if it still feels manageable at the halfway point. The step-by-step beginner’s guide walks through the full progression from there.

Do I need a weighted vest or a rucksack?

A weighted vest is a load-distribution device that sits against your torso and spreads weight across your shoulders, chest and back, while a rucksack is a container that only stays stable if it’s packed correctly — get that wrong and the load shifts with every stride, creating that unpleasant “bouncing” feeling. Picking the wrong one is how you end up with shoulder ache after half a mile, or a rucksack that lives in the cupboard because you never worked out how to load it properly. The full vest-vs-rucksack comparison breaks down which suits a first-time buyer.

Will my knees hurt if I ruck on concrete?

Concrete has effectively no give, so close to 100% of the force has to be handled by your shoe’s midsole and your joints, whereas trail or packed earth deforms slightly under each footfall and absorbs a share of that force itself. Trail shoes are built for the outdoors, but if you’re loading up on a seafront or city park, you’re mostly hitting concrete or tarmac — a different proposition for your knees entirely. What actually changes between concrete and trail is worth reading before you settle on a regular route.

Can I just use my normal trainers, even if it rains?

You do not need dedicated “rucking shoes,” but you do need the right shoe for the load you’re carrying and the ground you’re covering, which in practice usually comes down to trainers versus hiking boots. Trainers are fine for a one-off, light ruck on dry ground — cheaper, more convenient, no real downside. Once you’re out twice a week or more on wet grass, muddy coastal paths, or whatever else British weather throws at you, boots start earning their keep, holding up better under load and keeping your feet drier for longer. The failure mode either way isn’t dramatic, it’s cumulative: wet feet, sore arches and hot spots that turn what should be a decent five miles into a miserable one. The full shoe breakdown covers trainers, boots and everything in between.

How do I stop my lower back hurting?

Pack fit matters more than brand, and a pack that doesn’t match your torso length transfers load to your lower back instead of your hips — the single biggest cause of first-ruck back pain. It’s entirely preventable once you understand the framework for picking gear that actually fits your build. If your hips start reminding you they exist around the three-kilometre mark, that’s a good sign; if it’s your lower back complaining instead, the load is sitting in the wrong place. The complete beginner’s guide covers fit and adjustment in more detail.

Is the 10% rule actually enough, whatever I weigh?

The 10% rule is the widely-cited starting point for beginners, but it comes with conditions attached: flat, even ground, a baseline level of fitness, and a pack that actually fits. Drop any one of those — say, a local trail with real hills — and the number starts to slip, and your knees might make noises that weren’t in the manual. Bodyweight matters here too: under 70kg, 10% still gives most people a workable load on the right terrain, but the same caveats apply regardless of what the scales say. Terrain in particular catches people out — a load that feels perfectly fine on the flat can turn into a real problem once hills get involved, which is exactly why the rule needs adjusting rather than following it blind. The full 10-20% breakdown covers exactly when and how.

How long should my first ruck be?

Thinking distance is the goal is the most common beginner rucking mistake. Tendons, ligaments and bone remodel far slower than muscle or your cardio fitness does, and pushing distance before those tissues catch up is how overuse injuries end a rucking habit before it starts. So the safer protocol is time-based, not distance-based: start lighter than feels necessary and add load gradually over weeks, not days. The full first-ruck protocol sets out pace, distance and when to call it a day.

Why do my shoulders hurt more than my legs?

Your upper traps work constantly from the moment you shoulder a pack or strap on a vest — stabilising the weight, keeping the straps from digging in, holding your posture against a load your body hasn’t learned to handle yet. That’s why shoulder fatigue often beats leg fatigue on a first ruck, especially with a backpack that doesn’t have a properly adjusted hip belt. Load-bearing activity does upgrade your cardio system, but that’s a byproduct of the mechanical challenge, not the point of it. More on pacing your first few sessions explains why shoulders usually give up before legs do.

Will rucking make me stronger?

Rucking simply means walking or hiking with load, usually in a rucksack or a weighted vest, and it’s the “with load” part that changes everything — your musculoskeletal system has to adapt to carrying weight in a way an ordinary walk never asks of it. Bones get denser, your core gets more stable, and your heart rate settles into a fat-burning zone without needing to sprint to get there. The difference from a normal walk is subtle until you add meaningful weight, but that mechanical challenge is what actually does the work. How that stacks up against running for building fitness is covered in more depth in the comparison guide.

If none of the above quite covers it

Fair enough — ten short answers can’t cover every edge case. The full beginner’s guide goes deeper into everything above: weight, pace, kit, and the mistakes worth skipping entirely.