Why the climb demands different fitness than the descent: calorie burn, Zone 2 training and how to progress your pack weight right.
The honest answer up front: the climb decides your tour, not the descent — and that's exactly why splitboarding training differs from regular snowboard training. The parent guide on strength training gives you core stability and balance for riding. For the climb you need something else entirely: hours of aerobic endurance under load.
The calorie math shows how demanding this is: skinning uphill burns 600 to 1,000 calories per hour, and 20 to 30% more in deep, unbroken snow. Over a three-hour tour that easily adds up to 2,000 to 3,000 calories — energy your body has to pull from a trained aerobic base, not short bursts of sprint power.
How big the gap between trained and untrained can be shows in the comparison between elite and sub-elite ski mountaineering racers: elite athletes hit a maximal oxygen uptake around 71 ml per minute per kilogram of body weight, second-tier athletes closer to 62 ml — simplified: over the length of a climb, elite athletes can process roughly as much oxygen as a top-fit marathon runner, the others noticeably less.
The training key for this is Zone 2 base training: an easy, conversational pace where the body learns to burn fat more efficiently and clear lactate faster. That base is what carries you for hours, not maximum strength in the gym.
Start at an easy Zone 2 pace: you should still be able to hold a conversation while training. This intensity builds exactly the aerobic base that carries you through a multi-hour tour — sprints don't help much here.
Plain jogging only prepares you so far. Instead hike uphill with a pack, climb stairs or use an incline machine — the load on your leg muscles and climbing motion is more specific than any endurance work without grade and weight.
Start at 5 to 10% of your body weight for 45 to 60 minutes, twice a week. Slowly build toward your real touring weight — pack plus gear on your feet often totals 10 to 20 kg on a typical tour.
Find a longer stairwell or an incline route, put on the pack, and do laps. Gradually increase lap count, weight and pace — this trains exactly the muscles and endurance skinning demands.
Build the load over weeks, not days. Loading too much weight too fast risks overloading knees and back before the season even starts.
Increase training weight and volume gradually, especially with existing knee or back issues. A pack loaded too fast on stairs or climbs stresses joints more than the actual tour in snow. Talk to a sports medicine professional first if you have existing issues.
Simulate your first tour of the season in training, not on the mountain: same pack weight, similar duration, on stairs or an incline route. That way you find the gaps at home — not three hours from the nearest road.
600 to 1,000 calories per hour, and 20 to 30% more in deep, unbroken snow. Over a multi-hour tour that easily adds up to 2,000 to 3,000 calories — plan your fueling accordingly.
Zone 2 is an easy, still-conversational pace where the body burns fat more efficiently and clears lactate faster. It's the base that carries you through multi-hour climbs — maximum strength alone isn't enough for that.
Elite ski mountaineering racers reach a maximal oxygen uptake around 71 ml per minute per kilogram, ambitious second-tier athletes closer to 62 ml — a difference that shows up directly in climbing pace and recovery.
Start at 5 to 10% of your body weight for 45 to 60 minutes, twice a week. Slowly build over weeks toward your real touring weight instead of starting with full load immediately.
Splitboarding: Steep Terrain Technique