Reviewed by Chantelle Robitaille, MS
The shape of this guide: five disciplines, one foundation
Training for skiing depends on the kind of skiing you do, because the disciplines vary more than the shared equipment suggests. A nordic racer skating 50 kilometers at high turnover trains very much like a middle-distance endurance athlete. A skimo racer climbing a vertical kilometer course on ultralight gear works in the same intensity range as a mountain runner. A ski mountaineer breaking trail with a full pack has more in common with an alpinist on a long day, and a freerider dropping into a steep couloir on heavy gear depends more on eccentric strength than on any of those engines.
Athletes who train seriously for any of these disciplines arrive at the same conclusions about what carries them through a winter: a deep aerobic base built over months, leg strength that survives long descents, the muscular endurance to keep moving late in a long day, and recovery habits that allow a full season of skiing rather than one big day followed by weeks of breakdown.
This guide is built around that observation. The first half covers the universal foundation: the trainable qualities every serious skier develops, whatever the discipline. The second half covers the five disciplines we coach and build training for: nordic skiing, ski mountaineering and hut-to-hut touring, skimo racing, multi-day traverses such as the Haute Route, and freeride and steep-terrain skiing. Each discipline section describes how the demand profile changes, how the training shifts in response, and which of our training plans fits.
The methodology draws on our work coaching mountain and endurance athletes, the research synthesis in Training for the Uphill Athlete (2019), and our coaching team’s field experience on haute routes, multi-day traverses, skimo race circuits, and steep-skiing objectives. The training prescriptions in this guide are based on the fundamentals our coaches use with their athletes.
Who this guide is for
This guide is written for the intermediate to advanced human-powered skier who wants to stop guessing about training: backcountry skiers, ski tourers, ski mountaineers, skimo racers, and nordic skiers. You might be in your second season of structured training or your fifteenth, coming off a summer of mountain running and eyeing a first skimo race, or several seasons into a personal Haute Route project and still trying to understand why descents remain your weak link.
Lift-served alpine skiers looking for in-season conditioning will find the leg-strength and recovery material relevant, although the aerobic base discussion is written for athletes whose sport demands hours of uphill movement.
The universal foundation every skier trains
Every serious ski training program rests on the same five foundational qualities: aerobic base, leg strength, muscular endurance, descent conditioning, and recovery. Specificity is layered on top of it.
Aerobic base
Aerobic base is the capacity built through long-duration, low-intensity training, and for most skiers it is the quality that returns the most for the time invested. This work develops fat oxidation capacity, capillary density, and mitochondrial volume, which together allow many hours of uphill movement without a steep drop in output. It is also the work most often cut short by athletes who would rather feel sharp than be patient.
Weekly vertical gain is a useful shorthand for tracking aerobic base in ski training. An athlete heading into a first skimo season with no structured training background needs about eight weeks at roughly 1,500 to 1,700 meters of weekly vertical before starting a pre-season build. An experienced athlete with several seasons of structured training, coming off a summer of mountain running, typically starts that build closer to 2,000 to 2,200 meters per week. For multi-day traverse preparation, the weekly vertical needs to increase steadily through the build so the body has experienced what several consecutive days of output actually feel like.
Most of this base can be built on foot. Running develops aerobic capacity efficiently and builds connective tissue resilience, while hiking with a pack more closely mimics the load and movement pattern of skinning. Athletes returning from a long break or carrying injury risk do better with more hiking than running, and athletes with a solid running background can keep running through the summer and add ski-specific work in the fall.. When the final hour of a long day unravels on moderate terrain with a light pack, the aerobic base is usually the limiting factor.
Leg strength
Every form of skiing is a leg-strength sport. Climbing requires carrying body weight, gear, and often a pack through hours of repetitive single-leg loading, while descending requires absorbing force through the quads, glutes, and ankles on runs that last anywhere from under a minute to forty minutes or more. Adding strength training to endurance training also improves movement economy, meaning less energy spent at a given pace (Rønnestad and Mujika, 2014).
Strength progression follows the sequence we use across all mountain sports: a transition phase to rebuild general work capacity, a maximum strength phase that develops the neural recruitment to produce force, and a muscular endurance phase that converts that strength into the durability skiing demands. Two to three strength sessions per week through the base period is standard and this is reduced to one to two sessions per week for maintenance as the racing or objective season approaches.
If one strength exercise deserves priority, it is the loaded box step-up, which trains the movement pattern closest to skinning under load and is a key workout in nearly every ski plan we write. It also works as a baseline assessment. An athlete who cannot perform a clean, controlled box step-up at body weight, or hold a strong split squat, should start with remedial strength work before anything sport-specific, and the athletes we see injured early in ski season are most often the ones who skipped this step.
Muscular endurance
Muscular endurance keeps your legs producing force after the first thousand meters of climbing. , For ski mountaineering with a heavy pack, multi-day traverses, and any objective that keeps you moving under load for many hours, it is frequently the limiting factor, more so than aerobic capacity.
The training consists of loaded hill climbs, weighted step-ups, and ski-specific simulations performed at moderate intensity over long durations. Hill bounding sits at the explosive end of that range, using short, powerful efforts aimed at the strength side of the spectrum. Ski striding simulates the kick-and-glide pattern of skinning on lower-angle terrain. Moose hoofing, known in Norway as elghufs, sits between the two as a loping, less explosive version of bounding that can be sustained for longer.
For ski mountaineers, muscular endurance training takes the place of much of the high-intensity work near and above the anaerobic threshold that a skimo racer would do.
Descent conditioning
Descents are where ski seasons are most often lost. Athletes prepare diligently for the climbs and then arrive at their objective with quads that fail on the first long run down. The remedy is unglamorous and effective: two of the weekly aerobic base workouts should include controlled downhill running or descending after the climb, progressively building tolerance to eccentric loading across the season. Research on downhill running, the closest well-studied model, shows that prior exposure to eccentric downhill loading is the most effective known strategy for limiting muscle damage on later descents, an adaptation known as the repeated bout effect (Bontemps et al., 2020).
For freeride and steep skiing, descent conditioning becomes a dedicated emphasis. The strength program tilts toward eccentric loading and rotational core work, and the in-season plan protects time for descending on skis in the terrain the athlete is preparing for.
Recovery and durability
The longer the season, the more recovery determines how it ends. Skiers who hold high training volume without active recovery, mobility work, consistent sleep, and dedicated recovery weeks tend to break down in the second half of winter. The pattern is consistent enough that we treat the recovery week as a required component of every plan.
A recovery week reduces training load by roughly half while keeping the body moving, and it is designed so that by the end of the week the athlete feels ready for the next block. An athlete who starts the following Monday still tired has not fully recovered and needs another day or two of light work, and possibly a a recalibrated load for the training block that follows.
The transition period
The transition period is a three- to eight-week preconditioning phase that prepares the body for the structured base work that follows. For most skiers it is the first phase of the training year, and skipping it is one of the most reliable ways to start a season injured.
Three weeks is often enough for an athlete coming off a summer of mountain running into ski training, while an athlete returning from a long break should plan on closer to eight. The transition period consists of long, low-intensity aerobic work and general strength, with weekly volume rising seven to ten percent at a time with no addition of high-intensity or race-pace work.
The transition out of ski season deserves the same care. A long winter leaves skiers aerobically fit but without the connective tissue resilience that running demands, and returning to daily running before that tissue adapts is a common source of spring injuries. We recommend a run-walk reintroduction protocol whenever this might be needed.
The 10 Percent Test
The 10 Percent Test is the diagnostic we use to decide whether an athlete is ready for high-intensity training or needs more aerobic base first. It compares the heart rate at your aerobic threshold (AeT) with the heart rate at your anaerobic threshold (AnT), and the spread between them sets the training prescription.
When the spread is greater than ten percent, the aerobic base has not yet developed enough to support productive high-intensity training, a situation we describe as an aerobic base deficit. The right response is to delay work near and above AnT and spend the next training block building aerobic capacity, with most aerobic sessions performed at or just below AeT until the spread narrows.
When the spread is ten percent or less, aerobic base is in healthy proportion to top-end fitness. At that point, up to two high-intensity sessions per week can be included in the base period and should produce gains, while most of the remaining aerobic work moves to an easier intensity comfortably below AeT.
. This test matters because the two outcomes call for an opposite focus in training. An athlete with an aerobic base deficit who jumps into interval training tends to plateau, get injured, or both, while an athlete with a narrow spread who avoids intensity leaves performance untapped.
AeT can be determined with an outdoor aerobic threshold test, a heart rate drift test, a blood lactate test, or a lab-based metabolic test, and AnT with a 30- to 60-minute field time trial. Athletes in 1:1 coaching complete this assessment with their coach during onboarding, and Training Groups members can follow the spread between their thresholds on the Continuous AeT dashboard. The full protocol is covered in When and How to Add High-Intensity Training: The 10 Percent Test.
The five disciplines compared at a glance
The table below summarizes how training emphasis shifts and which Uphill Athlete training plan matches each one.
| Discipline | Primary physiological demand | Weekly vertical (first-season base) | Key strength emphasis | Key bridging workout | Matching UA plan |
|---|---|---|---|---|---|
| Nordic skiing | High-end aerobic capacity and repeated efforts near and above AnT | Volume-driven; fewer fixed vertical targets | Double-pole upper-body endurance, core, legs | Roller skiing, moose hoofing | 12-week Advanced Nordic Skiing Training Plan |
| Ski mountaineering and hut-to-hut | Aerobic base and muscular endurance | 1,500 to 2,000 m, ending near 2,000 m | Loaded step-ups, hill bounding, ski-specific simulations | Long, easy days below AeT with a weighted pack | 8-Week Hut-to-Hut Ski Touring Training Plan |
| Skimo racing | Aerobic base developing into sustained efforts near and above AnT | 1,500 m building toward 3,000 m | Hill bounding, hill sprints, neuromuscular power | Quick-tempo pickups, technical circuits | 16-Week Basic SkiMo Racing Training Plan; 16-Week Advanced SkiMo Training Plan |
| Multi-day traverses and the Haute Route | Aerobic base and muscular endurance across consecutive days | 2,000 m and above, progressing steadily | Pack carries, back-to-back long days | Loaded long days, consecutive-day blocks | 8-Week Haute Route Ski Tour Training Plan; 12-Week Grand Traverse (Ski) Training Plan |
| Freeride and steep terrain | Aerobic base supporting descent capacity | Enough to support the climb; lower than touring | Eccentric loading, rotational core, single-leg control | Tempo squats, single-leg eccentric step-downs | 12-Week Freeride Training Plan |
Nordic skiing
Nordic skiing depends on a deep aerobic engine, refined ski technique, upper-body endurance from poling, and the ability to repeat high-power efforts in distance and sprint events. The elite nordic training year centers on high-volume aerobic work through summer and fall, with roller skiing as the primary tool for specificity, supplemented by running, strength training, and double-pole-specific upper-body endurance work.
For recreational and competitive nordic skiers, aerobic base remains the cornerstone, and strength work adds double-pole upper-body endurance and core to the standard leg strength. Roller skiing is the highest-fidelity dryland tool available, while hill bounding and moose hoofing provide the power and mid-intensity bridges that appear across all of our ski plans because they transfer well to snow.
Nordic skiing differs from the alpine touring disciplines in three ways: turnover is faster, gear is lighter, and high-end aerobic capacity matters more than maximal muscular endurance. The interval work near and above AnT that we prescribe for skimo racers transfers closely to nordic distance racing, and the 10 Percent Test still governs whether and when to add it.
Matching UA plan: the Advanced Nordic Skiing Training Plan, was built by Ben Morley, head coach of the Jackson Hole Nordic Ski Racing Youth Team, and Laura McCabe, a two-time Olympian. It is designed for experienced nordic skiers preparing for marathon-style races of 20 to 50 kilometers and progresses through anatomical adaptation, maximum strength, ski-specific plyometric strength, and a final taper. The plan assumes a strong nordic skiing base and is not intended for beginners.
Ski mountaineering and hut-to-hut ski touring
Ski mountaineering and hut-to-hut touring place fundamentally different demands on the body than skimo racing. The gear is heavier, the pack fuller, the terrain is more variable, and the days are longer at a lower intensity and far greater total duration.
As a result, muscular endurance usually decides the day. Training mimics the slow, heavy turnover of breaking trail with a fullpack, in place of much of the high-end work a skimo racer would do. The strength emphasis falls on loaded step-ups, hill bounding, and ski-specific simulations. Long, easy days below AeT with a weighted pack become a meaningful part of late-base and specific preparation.
An athlete preparing for a first hut-to-hut traverse, such as the Wapta, a shorter alpine traverse, or a guided week in the Alps, should build weekly vertical progressively, ending near 2,000 meters per week with the long day carrying twenty to thirty percent of that total. This progression assumes consistent running or hiking through the preceding summer. More ambitious objectives, such as the Hoch Tirol or a longer Haute Route variant, call for higher weekly targets, bigger long days, and a larger share of the calendar devoted to strength work.
A common error we see in ski mountaineers is borrowed programming. Athletes read a skimo racing plan and assume it applies to a hut-to-hut goal, but skimo training prepares for efforts of forty minutes to two hours, while a hut trip demands back-to-back eight-hour days. The energy systems, the muscular demands, and the recovery needed between sessions all differ.
Matching UA plans: The 8-Week Ski Mountaineering Hut-to-Hut Training Plan is written for ski tourers who are fit enough for long day tours, but have little or no background in organized training or strength work, and are preparing for a first multi-day hut trip. Because eight weeks is a compressed build, athletes with more time to train will benefit from a longer aerobic base period before starting it. For stronger, more experienced ski tourers, the 8-Week Haute Route Ski Tour Training Plan builds toward multiple five-hour days of roughly 1,500 meters of climbing and demands more starting fitness and training time.
Skimo racing
Skimo racing is the ski discipline closest to mountain running in its physiology and training emphasis. Vertical races typically last thirty to forty-five minutes for competitive racers, and individual races run from about seventy-five minutes to two hours. Pace is high and gear is light. Field research summarized in a 2021 review in Frontiers in Physiology found athletes spend roughly half of their race time between the aerobic and anaerobic thresholds and much of the remainder above the anaerobic threshold ).
For an athlete in a first or second skimo season, the base period builds weekly vertical from roughly 1,500 meters toward 3,000 meters. Intensity is added only when the 10 Percent Test indicates the base can support it. Strength sessions continue through the base period and decrease to once weekly as the race season approaches. Hill bounding and hill sprints develop the leg power that pays off on a steep skin track. Quick-tempo pickups within aerobic base workouts (eight fifteen-second, high-cadence efforts with three easy minutes between them) train the neural recruitment that high turnover requires. Our article on off-season base building for skimo covers dryland training in detail.
For an experienced racer with multiple seasons in the sport and a training history of roughly 400 or more hours per year, the early base period shifts to ski-specific aerobic work as soon as snow is available, often including a fall glacier camp or similar on-snow block where weekly volume can reach twenty to twenty-five hours. Experienced racers should also develop the technical skills that limit performance once fitness is in place: transitions, kick turns, skin management, boot packing, high-tempo skinning, and fast descending. We recommend a technical circuit of ten to fifteen minutes that includes all of these elements, performed once a week through the base period at an intensity between AeT and AnT.
Within the race season, three scenarios recur. A gap of two or three weeks between races allows a short block to rebuild capacity. Back-to-back priority weekends call for maintenance-only weeks in between, built around one high-tempo session, an aerobic maintenance day, technique work, and recovery. A lower-priority race placed before a priority race can serve as the hard workout of the week and provides a real-conditions test of pace, equipment, and tactics.
Matching UA plans: The 16-Week Basic SkiMo Racing Training Plan is our beginner-to-intermediate plan for athletes entering their first or second race season, and the 16-Week Advanced SkiMo Training Plan is built for experienced racers with several seasons of structured training who want to raise their race performance. Both work best for skiers coming off an active summer of running and hiking in the mountains.
Multi-day traverses and the Haute Route
A multi-day traverse requires a deep, patient build above everything else. Whether the objective is the Haute Route, the Wapta, the Hoch Tirol, or a personal line through any range, the challenge is not one fast day but several consecutive days of long ski mountaineering at a submaximal pace with limited recovery between days.
Mountain Guides see the same failure pattern every season. Athletes build for one big day, arrive for the trip, ski a solid first day and a tolerable second, and then unravel on the third. The athletes who hold up from Chamonix to Zermatt are the ones who completed consecutive eight-hour training days in the final block of their preparation.
The training emphasis is volume first and intensity second, with a focus that leans toward muscular endurance. Aerobic base must be large enough that a single long day draws on well under your maximum capacity. Strength work runs through the base period and into a late-base block where ski-specific muscular endurance becomes the top priority. Pack carries become a meaningful part of the long day in the final preparation weeks, and back-to-back long days expose the body to the consecutive-day load it will face on the trip.
The Chamonix to Zermatt Haute Route illustrates the demand well. The classic ski route involves roughly 6,000 to 7,000 meters of cumulative climbing over six or seven days, commonly 800 to 1,300 meters per day, combined with sustained time at altitude, variable snow, and the technical demands of glacier travel and exposed traverses. No single day is extreme, but fatigue accumulates, and underestimating it is the most frequent reason trips unravel partway through.Twelve weeks is enough for an athlete with a strong summer aerobic base, although sixteen to twenty-four weeks is more realistic, and an athlete returning from a long break needs considerably longer. Long-format races such as the multi-day Pierra Menta and the Patrouille des Glaciers, which covers about 57 kilometers and 4,400 meters of climbing from Zermatt to Verbier in a single push, sit between this discipline and skimo racing. For these, the precompetition phase tilts back toward skimo-style intensity while the muscular endurance emphasis stays in place.
Matching UA plans: The 8-Week Haute Route Ski Tour Training Plan is written for experienced ski tourers preparing for a demanding multi-day hut traverse like the Haute Route, with multiple five-hour days of roughly 1,500 meters of climbing, and it builds from about eleven to more than fourteen training hours per week. The 12-Week Grand Traverse (Ski) Training Plan is a beginner-to-intermediate plan built for Colorado’s Grand Traverse race and similar long backcountry races, and it also works well as a fitness base for a multi-day hut-to-hut trip.
Freeride and steep-terrain skiing
Freeride and steep skiing training plans place more weight on the descent than any other discipline in this guide. Most steep lines are still earned by skinning, sometimes with boot packing or technical climbing, but the descent defines the sport. Athletes need to ski with control through long, sustained pitches, manage the weight of heavier boots and skis, absorb force across consecutive turns at speed, and recover well enough to descend confidently the following day.
Aerobic base remains the foundation because the climb still has to happen. Leg strength becomes more central, with explicit emphasis on eccentric loading through tempo squats with a slow lowering phase, single-leg eccentric step-downs, and weighted box drops introduced progressively. Core strength takes a larger share of the program because rotational stability under load protects the back and knees on a long descent . Muscular endurance work emphasizes longer holds and isometric components that mimic the sustained tension of a controlled descent.
The in-season pattern also changes. A freeride athlete does not train through their best objective days, because the powder day is the workout. Training is arranged around ski days, with strength, mobility, and easy aerobic work filling the rest of the week and active recovery keeping the quads ready to ski.
Athletes commonly underestimate the eccentric load of a 600-meter descent on heavy gear and overestimate how quickly they recover between days. Early in the season, a recovery day after every two consecutive ski-heavy days is a sensible default, with longer ski blocks introduced as durability improves.
Matching UA plan: the 12-Week Freeride Training Plan, an advanced plan for expert backcountry skiers and ski mountaineers who skin or climb to steep lines on big mountains. It assumes a solid conditioning base from an active summer, no current injuries, and access to a barbell and squat rack, and its demanding ski-specific muscular endurance segment begins around week six. Skiers who find a day with 600 meters of climbing taxing should start with the 8-Week Ski Mountaineering Hut-to-Hut Training Plan.
How a ski training year fits together
A ski training year is organized around the season’s main objective and the work it requires beforehand. For most of our athletes, the calendar follows a similar arc.
Summer (June through August). Aerobic base work happens almost entirely on foot through mountain running, and hiking, with substantial vertical, and long days, while strength training continues at two sessions per week. This is where the deepest base is built, and nearly every successful winter starts here.
Late summer and early fall (September through October). Ski-specific simulations enter the program, with ski striding, moose hoofing, hill bounding, and roller skiing bridging summer movement and on-snow work. Strength shifts toward ski-specific muscular endurance. Skimo racers begin layering in intensity once the 10 Percent Test confirms the base can support it, while ski mountaineers and traverse athletes spend the late-base block on muscular endurance. Our preseason ski touring article describes this phase for touring athletes.
Early winter (November through December). The work moves onto snow. For skimo racers this is the precompetition phase, when intensity training focuses on efforts between AeT and AnT, and later, y above An. Ski mountaineers and traverse athletes build pack-carry progression and back-to-back long days, nordic skiers begin their on-snow base with classic and skate technique reinforced under volume, and freeride athletes refine descent-specific conditioning.
Mid-winter through the objective (January through April). In-season management centers on protecting form, supporting the specific objective, and avoiding breakdown. Skimo racers manage race weekends, traverse athletes peak for their trip, freeride athletes ski their lines, and nordic racers move through their race calendar.
Late spring (May). This period is for active recovery, light cross-training, deliberate detraining, and planning for the next year. It is also the phase most athletes skip. Our ski training plans cover the final eight to sixteen weeks before an objective. Shorter plans involve trade-offs, so we recommend pairing any plan with a transition period and a longer aerobic base phase when time allows, particularly after a layoff. Most athletes benefit from twelve to twenty-four weeks of structured build before a main objective, and an athlete coming off a long break or targeting a major traverse is well served by a full year of patient preparation.
Where to start
Start by choosing one priority objective for the year, whether a race, a trip, or an event, and putting it on the calendar.
Next, count backward. The weeks between today and your objective, minus a one- to two-week taper, define your training window. A window shorter than twelve weeks from a low starting base is a reason to scale the objective, while a window of sixteen weeks or more leaves room to build properly.
Then assess where your aerobic base actually sits. Run the 10 Percent Test if you have not already, tally your weekly hours and weekly vertical over the past eight weeks, and take an honest look at your strength baseline.
With that information, choose the matching training plan. The five disciplines in this guide map directly to our training plan library. If your objective sits between two disciplines, such as a Haute Route with a race component or a freeride season with a personal traverse, our coaching team can help you choose a plan or build a 1:1 program around that specific blend.
Finally, commit to the calendar. In our experience, consistency over months matters more than the cleverness of the plan or the quality of any single workout. with which the work is carried out over months.
For athletes who want more support than a self-guided plan, we offer two options built on the methodology in this guide. Training Groups (from $59 per month) includes every Uphill Athlete training plan, live Q&A sessions with our coaches, lectures from specialists, a private athlete community, and a training dashboard that tracks your aerobic threshold continuously. Personal coaching ($349 to $399 per month) pairs you with one of our experienced coaches for fully individualized programming.
Research cited
Bontemps B, Vercruyssen F, Gruet M, Louis J. Downhill running: what are the effects and how can we adapt? A narrative review. Sports Medicine. 2020;50:2083–2110.
Rønnestad BR, Mujika I. Optimizing strength training for running and cycling endurance performance: a review. Scandinavian Journal of Medicine & Science in Sports. 2014;24(4):603–612.
Bortolan L, Savoldelli A, Pellegrini B, Modena R, Sacchi M, Holmberg H-C and Supej M (2021) Ski Mountaineering: Perspectives on a Novel Sport to Be Introduced at the 2026 Winter Olympic Games. Front. Physiol. 12:737249. doi: 10.3389/fphys.2021.737249