Hill running: benefits, technique and workouts

Hill running is running up and down hills on purpose, either as a structured workout like hill repeats or simply by choosing hilly routes. It makes the same run harder without making it faster, which is exactly why runners use it: more work for your legs and lungs, less pounding than flat speed work, and a built-in lesson in pacing by effort.

It's also the session most runners either avoid entirely or attack like it owes them money. Neither works. This guide covers the real hill running benefits, how to run uphill and downhill properly, the hill workouts worth doing, and how to fit them around the rest of your week, whether you plan it yourself or use an app that balances mileage with gym days.

What is hill running?

Hill running covers anything from a hilly easy run to short, hard hill sprints. It breaks down into a few distinct sessions:

• ›Hilly easy runs: normal easy running on a rolling route, by effort.
• ›Hill sprints: 8–15 seconds near-max uphill, full recovery.
• ›Short hill repeats: 30–90 seconds hard uphill, jog or walk down.
• ›Long hill repeats: 2–4 minutes at a hard, sustainable effort.
• ›Hill fartlek: a continuous run where you push the uphills and recover on the flats.

Newer runners don't need all of these. If you're starting with a beginner-friendly week, hilly easy runs are plenty for the first couple of months. Structured hill workouts come once easy running feels comfortable.

Good hill running starts with good mechanics on the flat. Our guide to running drills covers the skips and form work that make driving up a hill feel natural rather than desperate.

Hill running benefits

Here's what the evidence supports, and where it runs out.

• ›Uphill intervals can improve running economy and 5 km performance. In 20 well-trained runners doing six weeks of different uphill interval programs, the mean 5 km time-trial improvement across all programs was 2.0%, and the highest-intensity program was best for running economy, improving it by 2.4% (Barnes et al., 2013).
• ›Hills aren't magic compared with flat intervals. In well-trained distance runners, six weeks of uphill or level-grade interval training both improved how long they could run at the speed linked to VO2 max, and the authors noted the level-grade training produced greater gains (Ferley, Osborn and Vukovich, 2013).
• ›The pooled evidence is still thin. A 2026 systematic review of 13 randomized trials found narrative improvements in running economy, repeated sprint ability and some aerobic markers, but its meta-analysis found no significant pooled effect on knee strength, jumping or aerobic capacity, with low overall certainty (Tham et al., 2026).
• ›Uphill running is lower impact. In a lab study at a steady 3 m/s, normal impact force peaks were smaller uphill than on the level and absent at a 9° incline, while propulsive forces rose (Gottschall and Kram, 2005).

The honest summary: hill running is a useful, flexible way to do hard aerobic work with less impact than flat speed work. It isn't a shortcut, and flat intervals work too. The case for hills is mostly that they're effective, cheap, and kinder to your legs on the way up.

There's a cost on the way down, which we'll get to.

How to run uphill

Running uphill well is mostly about not fighting the hill.

1. ›Shorten your stride. Take quicker, smaller steps. Long, bounding strides burn out your legs.
2. ›Stay tall. Lean slightly into the hill from your ankles, not by folding at the waist.
3. ›Drive your arms. Forward and back, not across your body. Your arms set the rhythm your legs follow.
4. ›Look ahead, a few meters up the hill, not at your feet.
5. ›Run by effort, not pace. Your pace will drop on a hill. That's the hill, not you.
6. ›Walk when it's steep. On an easy run, walking a steep climb to stay easy is the correct answer.

Your breathing will tell you if you're overdoing it. If you're gasping a third of the way up an easy run, slow down. Asking how should you breathe when running uphill has a simple answer for most people: let your breathing set the effort, and if you can't talk in short sentences on an easy day, you're going too hard.

How to run downhill

Downhill running is the part people ignore, and the part that leaves you sore for three days.

The physics is not on your side. In the same lab study, at a −9° slope, normal impact force peaks rose by 54% and braking force peaks by 73% compared with level running (Gottschall and Kram, 2005). A 2025 review describes downhill running as relying heavily on eccentric muscle contractions, which are associated with more fatigue and higher injury risk (Lu et al., 2025).

How to run downhill without paying for it all week:

• ›Quick, light steps. Short stride, high cadence, feet landing under your hips.
• ›Don't lean back and brake. Stay roughly perpendicular to the slope and let gravity help a little.
• ›Relax your arms. Use them for balance, a bit wider than usual if the hill is steep.
• ›Control the speed. Faster isn't the goal. Smooth is.
• ›Build it gradually. If you're new to hilly routes, expect sore quads at first, and add downhill volume slowly.

Anything that hurts more as you run, rather than just feeling worked, is a reason to stop and see a professional.

Hill workouts to try

Every hill session starts with a proper running warmup routine: 10–15 minutes easy, a few drills, a couple of strides. Never run hard uphill on cold legs.

Rules that keep hill workouts useful:

• ›Same effort every rep. The last rep should look like the first.
• ›Jog down slowly. The descent is your recovery, not a race back to the bottom.
• ›Stop when form falls apart. Hunched, slapping and grinding means the session is over.
• ›Progress slowly. Add one rep or a few seconds per rep every week or two.

Hill sprints

The shortest hill session, and the one that suits lifters best. If you don't have a hill nearby, hill sprints on treadmill work with a steep incline and slightly longer reps.

On a treadmill

No hills at all? A treadmill at an incline does a solid job for repeats and longer climbs, though it doesn't train the downhill. A guide to treadmill hill workout sessions would cover setting the incline and keeping speeds controlled.

Cooling down

After a hard hill session, jog easy on the flat for 10 minutes. Running warm up and cool down routines don't need to be elaborate; what matters is that the hard work is bracketed by easy running.

Hill running and racing

Hilly races punish runners who pace by the watch. Holding goal pace up a steep hill costs far more than it saves.

Pace hilly races by effort instead:

• ›Ease off on the climbs. Let your pace drop and keep the effort steady.
• ›Recover over the top. Don't sprint the crest; settle back into rhythm.
• ›Use the downhills, gently. Quick steps, relaxed, no braking.
• ›Save something for the end. If you're unsure what is a negative split in running, it's running the second half faster than the first, and it's much easier on a hilly course if you didn't burn everything on the first big climb.

Heat makes all of this harder. Whatever the benefits of running in heat for adaptation, a hot, hilly route pushes your heart rate up twice over, so slow down further than you think you need to.

Where hill running fits in a week

Most runners do well with one hill session a week at most, counted as one of their one or two hard days. Hilly easy runs don't count as hard if you keep them easy.

A sample week for someone running four days and lifting twice:

The hill session sits away from heavy legs, and heavy legs sit on an easy run day with rest after it.

Hill running for lifters

If you lift, hill running is one of the friendlier forms of hard running for your week.

• ›Short hill sprints pair well with lower-body days. Do them first, as the power part of your warm-up.
• ›Longer hill repeats are a hard day. Never heavy squats or deadlifts the day before.
• ›Downhills add soreness. If your quads are already cooked from leg day, pick a flatter route for your easy runs.

Common hill running mistakes

• ›Chasing pace uphill. The hill sets the pace. You set the effort.
• ›Overstriding. Shorter, quicker steps, every time.
• ›Sprinting back down. Jog down. Downhill is where the damage happens.
• ›Every run on hills. Mix flat and hilly routes.
• ›Hill repeats the day after heavy legs. Your quads will file a formal complaint.

How exrsz handles hill running

exrsz builds a periodized plan from your goal, schedule, level and equipment, and places hill sessions where they fit around your other hard runs and heavy lifting. It balances running and lifting in one plan, adapts each week to how you actually trained, and reshuffles missed sessions instead of stacking them.

FAQ

What are the benefits of hill running?

Uphill interval training improved running economy and 5 km time-trial performance in well-trained runners (Barnes et al., 2013), and uphill running has lower impact forces than running on the level (Gottschall and Kram, 2005). Flat intervals work too, so hills are a useful option rather than a requirement.

How often should I do hill running workouts?

Once a week is enough for most runners, as one of your one or two hard sessions. Hilly easy runs can happen more often as long as you keep them easy.

How do you run uphill properly?

Shorten your stride, stay tall with a slight lean from the ankles, drive your arms, and run by effort rather than pace. On easy runs, walking steep sections is fine.

Is downhill running bad for you?

It isn't bad, but it's harder on your legs than it feels. Downhill running increases impact and braking forces compared with level running (Gottschall and Kram, 2005), so build it up gradually and use quick, light steps.

Can I do hill running on a treadmill?

Yes, for uphill work. Set an incline for repeats or longer climbs. A treadmill won't train downhill running, so mix in real hills when you can.