Elevation Gain vs. Kilometres: Why Elevation Is Hiking’s True Final Boss

Why the vertical is my real final boss

When I finished my march in Berlin, I was exhausted but satisfied. My feet were burning, my shoulders were tense, and at some point my mind went blank—but I never felt as though I was reaching a genuine physiological limit.

It was long.
It was monotonous.
But it was manageable.

It was only later, in the Ore Mountains or on the Saale Horizontale around Jena, for example, that I realised distance is not the same as strain. Both events were a little over 50 kilometres—and yet they felt like two different sports.

Since then, I’ve known:
Kilometres are not my final boss.
Elevation gain is.

Kilometres vs. elevation gain—the underestimated difference

When we talk about long distances, we almost always talk about distance first. 30 km, 50 km, 100 km—it sounds tangible; we can picture it somehow. But the route length alone says surprisingly little about the actual strain.

The decisive factor is vertical work.

What really happens physiologically

1. Uphill: work against gravity

Every uphill step raises your entire body weight. From a physics perspective, you are doing lifting work—and it scales directly with weight and elevation gain.

An example calculation:

• Body weight: ~85 kg
• Backpack: ~10 kg
• Total weight: 95 kg
• 1,600 m of elevation gain

That adds up to more than 152,000 kilogram-metres of vertical work—in a single day.

And that is only the ascent.
The descent adds eccentric braking work on top.

2. Downhill: the underestimated destruction

Many people see descending as a recovery phase. That is a misconception.

When walking downhill, the muscles work eccentrically. They actively brake your body weight. That means:

• Continuous strain on the quadriceps
• High impact load on the knee joints
• Microtrauma in muscle tissue
• Increasing muscle damage despite the “negative” gradient

Uphill, it burns.
Downhill, it breaks you down structurally.

And with 1,600 metres of elevation gain, it is not just 1,600 metres of climbing—it is also 1,600 metres of controlled braking.

Why this matters in extreme hiking

A flat 55 km march with 250 metres of elevation gain means:

• 95 kg × 250 m = 23,750 kg
• → almost 24 tonnes of vertical work.

A 50 km route with 1,600 metres of elevation gain means:

• 95 kg × 1,600 m = 152,000 kg
• → 152 tonnes of vertical work.

Same distance.
Six times the vertical load.

That is not a detail.
It is a completely different physical demand.

Two marches in direct comparison

Mega March Berlin

• Distance: 52 km
• Elevantion gain: ~260 m
• Speed: Ø 5.4 km/h

This was a linear load. Heart rate stable, pace consistent, energy expenditure predictable. The biggest challenge was the duration—not the intensity.

Psychologically, it was almost meditative. The rhythm stays the same. The route is flat. You work your way forward kilometre by kilometre.

Saale Horizontale

• Distance: 53 km
• Elevation gain: ~1,600 m
• Speed: Ø 4.4 km/h

Here, the entire load profile changed.

Physiologically:

1. Significantly higher heart-rate peaks on climbs
2. Local muscle fatigue in the thighs
3. Active recovery on the downhill—but no real rest
4. Noticeably higher total energy expenditure

Psychologically:

• Every climb is a project in itself
• The profile dictates the mental rhythm
• The strain is not constant, but wave-like

After 40 kilometres, another climb no longer feels like “just a hill”—it feels like a strategic decision.

Why elevation gain is crucial when choosing an event

Especially among newcomers, one important mistake is made: they focus on the distance.

But:

• 50 km with 200 m of elevation gain → long-duration endurance
• 50 km with 1,000 m of elevation gain → strength endurance + cardiovascular stress
• 50 km with 2,000+ m of elevation gain → muscular and structural limit load

These are completely different demands.

In extreme hiking, it is not only about:

• How far you can walk
• How long you can keep going
• How good your aerobic base is

But above all:

• How often you have to move your body weight against gravity
• How well your muscles tolerate eccentric loading
• How stable your cardiovascular system remains during repeated intensity peaks

Distance measures time under load.
Elevation gain measures mechanical work.

And mechanical work is what fatigues you structurally.

That is why, for me, the following details must be included in every event description—before booking:

1. Total elevation gain
2. Distribution of the climbs
3. Longest continuous climb
4. Surface (asphalt vs. forest track)

I find it all the more disappointing when major organisers do not provide this information transparently—even when asked. Newcomers in particular massively underestimate the vertical component and then train for everything except the real problem.

You can sometimes find information from previous editions of an event, but only if there was a previous edition, participants shared it, and you assume the new route will be largely identical. My request to organisers would therefore be to provide this information openly and proactively. For a better event and happier participants.

Distance alone is marketing.
Elevation gain is reality.

Conclusion: gravity is the true final boss

Distance measures how far you can walk.
Elevation gain measures how often you have to overcome gravity.

And that is where my real respect lies.

Not in 50 kilometres.
But in 1,200 metres of elevation gain in one go, when the air gets thin and your mind wants to negotiate.

The mountain is vertical.
And that is exactly why it is my final boss.