Running Uphills on Trails: Technique, Effort and When to Walk

Watch a field of trail runners hit a long climb and you will see most of them walking within a few minutes. That is not a failure of fitness. It is the correct answer to a question about economy.

Uphill running on trails is a pacing problem dressed up as a strength problem.

Effort, not pace

On flat ground, pace is a reasonable proxy for effort. On a climb it is not: the same pace costs vastly different amounts depending on the grade, the surface and how fresh you are.

The scale that works better is breathing. Uphill, you want an effort where you can still speak in short sentences and your breathing has a rhythm rather than a scramble. If you are gasping, you are borrowing from the rest of the run.

Two runners on the same climb: one goes hard, stops to recover twice, and reaches the top wrecked. The other goes steady, never stops, and arrives able to run the descent. Over a long day, the second one is faster — and far more likely to enjoy it.

Technique that actually helps

Uphill running improves with a few adjustments:

• Shorten your stride and lift your cadence. Long steps uphill are expensive and put you in a position where you cannot react to the ground.
• Stay upright. Folding forward at the waist restricts your breathing — exactly when you need it most. Lean from the ankles, not the waist.
• Look ahead, not down. Line choice matters more uphill; you want to place feet on solid ground rather than picking through rubble step by step.
• Drive with your arms. On steep ground, arms do real work.
• Relax your shoulders. Tension in the upper body is wasted energy.

Walk, and decide early

The runners who gain the most from walking are the ones who start before they must.

The practical rule: when the climb steepens enough that your running stride stops feeling efficient, switch to a strong walk. Not a stroll — a purposeful, long-strided hike that keeps your breathing controlled and your heart rate near where it was.

Why early? Because the alternative is running until you are forced to stop, then recovering at the side of the trail. That recovery costs more time and more momentum than the walk would have.

A useful habit is to decide the walk sections in advance when you know the route, so the decision is not made by how you feel at that moment.

Poles, and when they earn their place

Trekking poles on a long sustained climb are genuinely useful. They spread the work into your arms and shoulders, reduce the load on your legs, and give you two extra points of contact on rough ground.

The costs are real: your hands are occupied, they take practice to use efficiently, and you have to carry them the rest of the time. In organised races, check the rules on poles and whether you must carry them for the whole course.

For very long days with significant elevation, most runners find them a net gain. For short, punchy climbs, they are more trouble than they save.

Train the climb, not just the distance

If climbing is your limit, distance running on flat ground does not fix it.

Climbing puts you at a high effort with a slow leg speed, which is a different demand from running fast on the flat. Hill repeats, sustained uphill efforts at a controlled pace, and strength work for the legs and hips all transfer directly.

The other half is descending, which is where trail runners lose the most time and recover the slowest. Practising descents — relaxed, quick feet, eyes ahead — pays off more than most people expect.