Ask about training for hiking and you’ll get the same three words back, on forums, in Facebook groups, from the guy at the trailhead with the sun-bleached pack.
Just hike more.
It’s the most repeated training advice in the sport. It’s also the least examined, and the gap between what it promises and what it delivers is where a lot of good trips go sideways.
First, the part that’s true
The advice deserves a fair hearing, because the principle underneath it is correct.
Specificity is the most powerful idea in training. The closest thing to preparing for an activity is doing that activity. If you could hike four or five days a week, on terrain that matched your objective, carrying the pack you’ll actually carry, with real elevation both up and down, then yes, hiking would be the best training available to you and everything else would be a distant second.
That’s the strong version of the argument and we’re not going to pretend otherwise.
The problem isn’t the principle. It’s the conditions. Almost nobody has flexible weekday hours, mountains within driving distance, and the recovery capacity to absorb that volume. What actually happens is two hours on a local trail on Saturday, some rolling terrain, an empty daypack, and a total of maybe 300 metres of gain. Then a trek that asks for 800 metres of climb and 800 of descent, six days running, with weight on your back and thinner air.
Same activity on paper. Different sport in practice.
So the honest version of the advice is this: hike as much as your life allows, then deliberately train the things your hiking never touches.
What hiking builds well
Give it credit. Regular hiking develops real aerobic capacity at walking intensity, teaches your feet and ankles the feel of uneven ground, builds pacing judgement, and gets you comfortable being out for hours. That’s a genuine base and it isn’t nothing.
It also builds the specific thing nobody can train indoors: time on your feet without getting bored or mentally checking out. That matters more than people expect on day four.
The four gaps hiking leaves open
Descent strength
The muscles that control you on the way down work eccentrically, lengthening under load instead of shortening. That’s a different demand from climbing, and it’s the one that produces the deep, next-day soreness after a big descent day.
The useful part: your body adapts to this specifically. Do enough controlled downhill and eccentric work and the same descent produces meaningfully less damage the next time. That protective adaptation only happens if you train the descent, and a gentle out-and-back on rolling terrain doesn’t provide enough of it.
Most trek days end lower than they start, or return to where they started. Every metre you climb is a metre you have to control coming back down. If your training only ever asks you to go uphill for an hour and stroll back, you’ve trained half the job. We’ve written the full case for this in The Descent Is What Breaks You.
Load tolerance
Carrying weight isn’t the same activity as walking. It costs more energy, shifts your posture forward, changes your stride, loads your low back and shoulders differently, and makes every step down harder to control.
Day hikers usually carry water, a shell, and a sandwich. Trekkers carry considerably more, sometimes for eight hours, six days in a row. Your spine, shoulders and hips need weeks of progressive exposure to that. Adding weight for the first time on day one of a trek is a bad experiment to run at 4,000 metres.
This is the entire case for rucking, and it’s the single highest-return addition for anyone who already hikes.
Cumulative fatigue
Weekend hiking gives you six days to recover. A trek gives you one night.
Day one you feel excellent. Day two you’re fine. Day three the sleep is poor, the food is unfamiliar, your quads are already sore and there’s another pass in front of you. That’s the state you actually need to perform in, and a Saturday hike never puts you there.
Training that stacks work on consecutive days, or asks for a hard session on already-tired legs, is what builds tolerance for it. It feels worse than fresh training. That’s the point.
Balance and control on ground that moves
Trails near town tend to be maintained. Scree, moraine, wet root, loose talus and river crossings are a different problem, and they get harder as your legs get tired and your reactions slow.
Ankles that roll on trail are usually undertrained rather than unlucky, and the stability that prevents it is built through single leg work and deliberate balance training, not accumulated flat miles. Full breakdown in Tired of Rolled Ankles.
What this looks like on the trail
The pattern repeats itself every season.
Someone hikes 15km on local trails regularly and feels ready. Day three of their trek, with a loaded pack and 900 metres of descent behind them, their quads are shot, their knees ache on every step down, and they spend the rest of the trip managing discomfort instead of looking at the mountains. They finish. They describe it afterwards as harder than expected.
Nothing went wrong. Their training simply matched a different activity than the one they showed up for.
The injuries follow the same logic. Knee pain on descent from quads that never learned eccentric control. Low back trouble from a core that never carried load for hours. A rolled ankle on scree from stabilisers that only ever met groomed dirt. These aren’t bad luck. They’re the predictable result of a gap between preparation and demand.
Training for hiking: what to add
Keep hiking. Then close the four gaps.
Strength that transfers
Not bodybuilding. Not general gym fitness. Training that looks like what the mountain asks for.
- Single leg work. Step ups, split squats, lunges. Hiking is a single leg activity and every step up onto a high rock is a one-legged press with a pack on.
- Controlled eccentrics. Slow lowering phases, step downs, downhill sessions. This is the descent insurance.
- Loaded carries and core under load. Not crunches. Anti-rotation and anti-flexion work with weight on you.
- Posterior chain. Hinges and glute work for climbing and for stability under a pack.
More on why gym numbers don’t automatically transfer in Strength Training for Hiking: Why Gym Fit ≠ Trail Ready.
Vertical, even without mountains
Stair machines, stadium steps, and steep treadmill work give you the climbing stimulus on a weekday evening when there’s no mountain nearby. They’re not identical to real terrain, and the differences matter, which we broke down in Stairmaster vs Incline Treadmill vs Real Hills.
Progressive load
Start conservative, add weight or time gradually, and build toward the duration your trek days will actually be. Long steady rucks are the backbone. Adding weight faster than your connective tissue can adapt is the most common way people injure themselves in trek prep.
Aerobic work with some range
Steady state builds the engine. Some harder efforts, hills repeated, tempo work, sustained climbing at an uncomfortable but controlled pace, teach your body to keep functioning when the trail gets steep and your breathing gets loud. Not sprinting, and not racing hazards. Mountains reward controlled effort and punish rushed movement. The aim is to raise the ceiling so that a hard climb sits well inside it.
If your trek goes high, altitude has its own preparation problem, covered in Training for Altitude When You Live at Sea Level.
Sequencing it
You don’t need a specific number of weeks. You need the right order in whatever runway you have.
Early phase. General strength, movement quality, aerobic base. Build the foundation and fix obvious weaknesses.
Middle phase. Trek-specific work moves to the front. Ruck duration climbs, vertical sessions get longer, strength shifts toward single leg and eccentric work.
Late phase. Sessions start to resemble trek days. Long loaded efforts, back to back training days, real descent volume, terrain that’s uncomfortable.
Taper. Volume drops, quality stays, legs arrive fresh.
That sequence compresses or expands. With six months you spend longer in each phase. With eight weeks you move through them faster and prioritise harder. Eight weeks of correctly ordered training beats six months of unstructured hiking, and it’s a perfectly reasonable runway to start from.
Not sure where you’re starting? Run through Am I Fit Enough for My Trek first.
Five ways people get the supplemental work wrong
Generic gym programs. Chest and arms three times a week doesn’t prepare you for a pass. The work needs to look like the demand.
Ignoring the descent. The most commonly skipped element and the one that causes the most trouble. Uphill training feels productive. Downhill training feels pointless right up until day three.
Training everything separately. Strength on one day, cardio on another, balance never. The trail asks for all of them simultaneously, on tired legs. Some of your training should too.
Loading up too fast. Going from a daypack to 15kg in a fortnight because the trek is close. Tendons and ligaments adapt more slowly than muscle, so your legs can feel ready weeks before the connective tissue is.
Underestimating recovery. Adding training stress on top of a full life without adjusting sleep or easy days. You get the fatigue without the adaptation, and you arrive at the trailhead already dug out.
The part that isn’t physical
Structured training builds something hiking rarely does: familiarity with voluntary discomfort.
When you’ve finished a session you didn’t want to start, carried a load longer than felt reasonable, or held form on the last set with your legs shaking, you’ve collected evidence about yourself. On day five of a trek, when the pass is still an hour above you and the weather is turning, that evidence is what you draw on.
It also sharpens judgement. Learning to make decisions while physically stressed in training, whether to push, whether to back off, whether the discomfort is fatigue or something wrong, is the same skill that keeps you honest about a turnaround decision on a real mountain.
Confidence built on preparation holds up. Confidence built on hoping it goes well tends not to.
Where to start
Keep hiking. Add strength for your legs and core, add load progressively, add vertical, and train the way down as deliberately as you train the way up.
That’s the whole argument. Hiking is necessary and it isn’t sufficient, and the difference between the two is where most trek disappointments live.
If you’d rather not assemble it yourself, our 8-Week Trekking Fitness Plan does the sequencing for you: strength and aerobic conditioning, stair climber sessions, and a ruck progression that starts at 45 to 75 minutes and builds toward 3 to 4 hours by week 8. Every exercise has a video demo, with bodyweight alternatives if you don’t have a gym. One time purchase, lifetime access, downloadable PDF.
For the wider picture beyond fitness, permits, gear, logistics and everything else, start with The Complete Trek Preparation Guide.
Your trek will ask specific questions. Train the answers.
