Ski Erg - Technique & Training Guide

Overview

This guide covers everything you need to ski efficiently on the Ski Erg, from initial setup through to the mechanics of each phase of the stroke, common technique errors, and specific training and racing guidance for both Hyrox and CrossFit athletes.

The Ski Erg is far more than an upper-body cardio tool. Used correctly, it is a full-body movement with strong carryover to other gym exercises, particularly pull-ups (lat activation), hip hinge patterns, and any movement involving hip closure. It is an excellent tool for both cardiovascular development and muscular endurance.

Damper Setting

The Ski Erg operates on a flywheel system, think of it like starting a lawn mower. Short, weak pulls never fire it. One strong, committed pull does. The same applies here: put real, decisive energy into every stroke.

The damper controls how much air enters the machine and how quickly the flywheel slows between strokes. Your stroke rate is the best feedback tool for whether your damper is right:

• If stroke rate is very low and each pull feels like a strain, the damper is too high, reduce it.

• If stroke rate is very high and you cannot breathe properly on the recovery, the damper may be too low, increase it.

• The goal: pull through the cord quickly and powerfully without straining, at a sustainable cadence.

  
  

A good general starting point is damper 3. Specific stroke rate ranges, and what actually constitutes a high or low stroke rate on this machine, are covered in detail in the Hyrox and CrossFit sections later in this guide, along with specific damper recommendations for each context.

Setup and Starting Position

Take a shoulder-width stance and position yourself so that when you reach your arms straight out in front, your fingertips just touch the uprights. This gives you enough space to hinge properly. Too close and you will be forced into a squat, which overloads the legs and is very hard to recover from over a long workout.

Brace your core and keep your ribcage down. Before you reach up for the handles, think of yourself as getting into an athletic ready position, coiled and loaded, so that the moment you take hold of the cord, your body is primed to drive immediately. The goal is for the hinge and the engagement of the resistance to happen as close to simultaneously as possible, with no wasted movement in between.

The Four Phases of the Stroke

Phase 1: The Catch

The catch is the moment you first engage the cord and feel resistance from the flywheel. This is a critical point to understand: you want to meet that resistance as early as possible in the hip hinge movement, because the hinge is where your power comes from. The fuller the range of hinge you can perform under resistance, the more power you generate.

The key is that the hinge and the resistance meet at almost the same moment. You are not standing upright and then hinging down to find the cord, and you are not fully folded over before you engage it. Instead, your body is already loaded and ready so that as you reach up and take hold of the handles, the hinge begins immediately and the flywheel is working against you from the very start of the movement. This matters because the hinge is where your power comes from.

The more of that hinge you perform under resistance, the more power you put into the machine. Think of it like a sprinter in the blocks: they are not standing upright waiting for the gun. They are already coiled and loaded so that the moment it fires, every bit of their movement is productive.

Key positions at the catch: elbows bent at approximately 90 degrees, hands at roughly forehead height, hips beginning to hinge back but not yet folded over, shoulders retracted with elbows pointing down, core braced and ribcage down.

Arm engagement at the catch is low. The power here comes from the hips going back and the body beginning to load, not from the hands or forearms pulling. The lats and core are the primary engines throughout.

Phase 2: The Drive

The drive is where the vast majority of power is generated. From the catch, drive the torso down aggressively to approximately a 45-degree angle. Hips stay high and hinged, knees bend slightly but this is not a squat. You are loading the hinge and saving the legs.

Keep the elbows at roughly 90 degrees throughout the drive. This keeps the upper-body work in the lats, not the triceps. The sequence is hips back, chest drives down and through the arms, torso reaches 45 degrees. Bodyweight and the lats are doing the work. Arms stay relatively passive.

If your arms are working hard during the drive, you have defaulted to arm-pulling. Reset the focus to the torso driving down with hips high.

Phase 3: The Follow Through

Once the drive is complete, the elbows extend to finish the stroke. This is the last 20% of force output, a follow-through, not a power phase.

Rather than thinking of pushing the cord down, think of the elbows extending to push your body back up to upright. The arms are opening you up, not driving the cord further. If you have generated enough power through the drive, the follow through should feel like a fast, natural flick, not a strain.

A useful Olympic lifting analogy: in the snatch, you do not think of the triceps pushing hard to lock out, you think of the arms finishing and catching the power generated by the lower body. The same applies here.

Phase 4: The Recovery

Stand back up to full extension, hips and knees fully open, heels may briefly rise as you reach triple extension. Reach the arms straight back up in front of the body. No wide butterfly arc, the straightest path is the fastest and most consistent.

This is where you breathe in. Exhale forcefully on the drive, which engages the core and supports power output, then inhale during the recovery. If your stroke rate is so high that you cannot complete a proper inhale here, reduce the damper or lower the cadence.

A clean recovery sets up a clean catch. Reach back up, meet the cord at the start of the hinge, and repeat.

Common Mistakes

Squatting instead of hinging. Standing too close forces a squat when you reach for the handles. This overloads the legs rapidly and is very hard to recover from. Stand further back and hinge.

Overusing the arms. Pulling with the arms first while the body stays passive is the single biggest efficiency killer on the Ski Erg. When form breaks this way, pace drops and energy demands rise simultaneously, a double penalty.

Rocking onto the toes. Feet stay flat. Rocking onto the toes breaks the connection to the floor that the hinge relies on.

Only hinging at the hip with locked-out legs. Straight legs concentrate all load in the lower back and arms. Both a hip hinge and a slight knee bend are needed.

Keeping the torso vertical. Dropping the hips straight down with an upright torso is unsustainable. The quads are overwhelmed within 30 to 40 strokes. Maintain a 45-degree torso angle.

Short-stroking at the catch. Under fatigue, athletes cut the stroke short and stop opening the hips fully. You should feel clear tension against the flywheel at the top. Keep your chest and back angle in line with the monitor as a reference.

The butterfly recovery. A wide arm swing on recovery leads to flared elbows, raised shoulders, inconsistent catch position, and weaker drive. Every stroke traces a slightly different path. Keep everything on a straight, linear path.

Wrong damper for stroke rate. A damper too high forces you to strain through every pull. A damper too low encourages a stroke rate so high that proper breathing on recovery becomes impossible. Use stroke rate as a feedback tool and adjust accordingly.

Training for Hyrox

The Ski Erg in a Hyrox Race

The Ski Erg is the first station in a Hyrox event, appearing after the opening 1km run. The ski cannot win you the race, but it can start you down the path of losing it. Going too hard or with poor form this early costs you disproportionately, you are burning energy needed for the sled, lunges, wall balls, and everything that follows.

The distance is fixed at 1000 metres. Even a 2-second improvement per 500m gains you only around 5 seconds overall, rarely worth the energy expenditure. Unless the Ski Erg is a glaring weakness, the smart play is to complete it efficiently at a controlled pace and move on intact.

The Ski Erg is a trap. It is set there for you to go too hard too soon. The athletes who make up the most time in Hyrox do so on the sled, the lunges, and the wall balls.

Hyrox-Specific Form Cues

All fundamental stroke mechanics described above apply. The key sequencing cue for race day is: Hips, Chest, Arms. Repeat this in training to wire in the pattern. Fatigue and adrenaline in a race will push you toward arm-dominant pulling. This cue is your best defence.

Also: start opening the chest on the recovery before the arms have fully finished. This keeps blood flowing and prevents the pumped, restricted feeling in the arms that builds when you stay closed at the bottom of each stroke.

Damper Setting for Hyrox

For a Hyrox race, aim for damper 5 or 6. The higher setting keeps the flywheel moving between strokes at the lower cadence that a controlled Hyrox effort demands. Adjust based on your size and power output.

Pacing for Hyrox

Use your 2K ski time as a benchmark. A good Hyrox race pace sits roughly 4 to 6 seconds per 500m slower than your maximum 2K pace, the same principle as pacing on the rowing erg. This should feel controlled, not easy, but far from maximum effort. If it feels hard, you are going too fast.

Target stroke rate is 35 to 45 strokes per minute depending on your size and power output. Those who generate more power per stroke should aim toward the lower end. Find your number in training and make it automatic.

Training for Hyrox

Build the aerobic base first

Hyrox is a predominantly aerobic event lasting 60 to 90 minutes. The majority of energy is produced through aerobic pathways, fat oxidation and glucose oxidation working together. Building a large aerobic base is therefore the primary physiological target. Spend significant time on the Ski Erg at easy, aerobic paces to develop the specific cardiovascular and muscular endurance pathways through the core, lats, and posterior chain that running, rowing, and cycling do not fully replicate.

Zone 2 training 

Low-intensity, long-duration sessions at around 75% of functional threshold are a high priority for Hyrox athletes. This builds the aerobic base that allows you to sustain output across the full 60 to 90 minutes without throttling down. Examples: 45 minutes on the Ski Erg or rower at a conversational pace. This type of work is less relevant for CrossFit athletes whose events are shorter and more anaerobic, but is foundational for Hyrox.

Long intervals

Once the aerobic base is established, long intervals directly simulate Hyrox race demands. Examples: 5 sets of 8 minutes, or 4 sets of 5 minutes, with structured rest. These build the aerobic power and pacing discipline needed to hold a consistent effort across the full event.

Use a 1500m or 2K buy-in

When doing Hyrox-specific tempo sessions, begin with a 1500m or 2K ski at the start of the workout. With a full session ahead of you, you will not go all-out on the ski, and that naturally teaches race-appropriate pacing. Practise running into and out of the ski as well to simulate race transitions.

Kettlebell swings as supplementary work

The kettlebell swing is the gym movement most closely mimicking the Ski Erg stroke, hips fire back and snap closed, weight is pulled down hard. Including swings directly reinforces the hip-hinge pattern and improves power output on the machine.

Training for CrossFit

The Ski Erg in CrossFit

In CrossFit, the Ski Erg appears in workouts in a wide variety of formats, buy-ins, buy-outs, paired with barbell or gymnastics work, in AMRAPs, or as standalone time trials. Unlike Hyrox, where the format is fixed and known in advance, CrossFit demands adaptability. You must be prepared to approach the ski at maximum intensity in one WOD and conservatively in the next.

The machine is still relatively uncommon in many boxes, which means athletes who invest time in developing good technique and pacing awareness have a genuine competitive advantage.

Energy Systems in CrossFit

CrossFit workouts span a wide range of durations and intensities, from a single-rep maximum deadlift to a 15-minute chipper. However, CrossFit is predominantly anaerobic in character, the sport demands repeated short bursts of very high output with rest or lower-intensity movement in between.

Research on workouts like Fran shows that when performed with rest between rounds, anaerobic energy systems contribute a higher proportion of total output than when performed continuously. This is why elite CrossFit athletes tend to have relatively modest aerobic bases compared to endurance sport athletes, their training and their events primarily develop and reward anaerobic power.

For Ski Erg training in CrossFit, this means the emphasis shifts toward higher-intensity intervals and sprint capacity, rather than the long, steady aerobic base work that Hyrox demands.

Technique Under Fatigue

In CrossFit, the Ski Erg often appears alongside high-intensity movements. You may arrive at the machine already fatigued, or move from it directly into heavy barbell work or gymnastics. The primary technical challenge is maintaining the hip-chest-arm sequence when tired. Including the Ski Erg late in training sessions, after other work, helps you practise holding form when it matters most.

Damper Setting for CrossFit

For CrossFit workouts, damper 3 to 4 is generally appropriate. This allows a higher stroke rate and faster recovery between strokes, suiting the variable intensity and shorter time domains common in WODs. For sprints under 60 seconds, damper 4 to 5 can work. For longer aerobic pieces, stay at 3 or below.

Use stroke rate as a guide: if you cannot breathe on the recovery, nudge the damper up. If you are straining through every pull, bring it down.

Stroke Rate for CrossFit

On the Ski Erg for CrossFit, your stroke rate will typically fall in one of two ranges: the high 30s (37 to 39 strokes per minute) for longer, steadier aerobic work, and the low 40s (40 to 43 strokes per minute) for sprint-style efforts and shorter, more intense pieces. If stroke rate is creeping very high, check whether the damper is too low or whether you are short-stroking. More strokes at lower power is rarely the answer.

Breathing

Exhale forcefully on the drive, which engages the core and supports power output, then inhale on the recovery. If stroke rate is too high to complete a proper inhale during recovery, this is a signal to lower the damper or cadence. Running out of breath on the ski is often a stroke-rate problem, not a fitness problem.

Pacing Strategies for CrossFit

The right approach depends entirely on the WOD structure. For buy-ins and buy-outs, stay controlled and efficient, preserving capacity for the rest of the workout. In AMRAPs and chippers, pace to your sustainable threshold so the ski does not become the limiting movement. For standalone time trials over 500m, 1K, or 2K, go all-out from the start with known splits. When paired with heavy lifting, be conservative, blowing up on the ski will cost you far more on the barbell.

Training the Ski Erg for CrossFit

Shorter, higher-intensity intervals. CrossFit training on the Ski Erg should prioritise short, high-output intervals with longer rest periods. Examples: 10 to 15 seconds all-out with 45 to 50 seconds rest for power development, or 1 to 2 minutes hard with equal rest for threshold capacity.

Longer aerobic intervals if conditioning is a weakness. If your aerobic base is genuinely weak and you fade in longer WODs, Zone 2 work and longer intervals of 3 to 5 minutes at a hard but sustainable pace can help. Most CrossFit athletes, however, will see greater returns from higher-intensity work.

Skill practice. Dedicated technique work pays dividends on a machine that many athletes underuse. Practise the four-phase sequence, breathing coordination, and transitions on and off the machine. Ten minutes of focused technique a few times per week compounds significantly over a training cycle.

Combined WOD practice. Programme the Ski Erg alongside the movements it is most commonly paired with, wall balls, box jumps, pull-ups, burpees, barbell cycling. Learn how your pacing on the ski affects performance on what follows.

Hyrox vs CrossFit: Key Differences in Ski Erg Training

Two Disciplines, One Machine

Hyrox is fitness racing. CrossFit is a sport of fitness. Both use functional movements at high intensity, combining strength and endurance, which makes them appear similar from the outside. But from a physiological perspective they make very different demands on the body, and those differences shape how the Ski Erg should be trained and raced in each context.

The Core Distinction

In Hyrox, the Ski rg is one fixed station early in a long, aerobic event. The goal is efficiency and conservation. In CrossFit, the Ski Erg can appear in almost any context and at almost any intensity. The goal shifts with the workout. Hyrox rewards discipline and restraint on the ski. CrossFit rewards adaptability and the ability to push hard when demanded.

Physiological Differences

The most fundamental difference between the two disciplines lies in which energy systems they primarily develop and demand. Hyrox events last 60 to 90 minutes, placing the majority of energy production in the aerobic zone, a mix of fat oxidation and glucose oxidation. CrossFit events are far shorter and more intense, placing a higher reliance on anaerobic systems.

Research on elite CrossFit athletes shows that their aerobic bases are often surprisingly modest compared to endurance athletes, because their sport demands and rewards anaerobic power, not sustained aerobic output. This is not a flaw, it is a physiological adaptation. But it does mean that a CrossFit athlete attempting Hyrox without a deliberate aerobic base-building phase will likely find the later stages of the race very difficult as glycogen depletes and aerobic capacity becomes the limiting factor.

Athlete Body Type

Research and elite competition data point to a clear difference in the body types that tend to excel in each discipline. In open-style CrossFit workouts, shorter athletes are generally advantaged. Movements like burpees, snatches, and pull-ups are biomechanically more favourable for smaller frames, and studies show that shorter arm and thigh length correlates significantly with better performance in open-format workouts.

In Hyrox, taller athletes are generally advantaged. The movement set, sled pushes, lunges, wall balls, rowing, and running, is biomechanically more favourable for taller frames. The top 10 male Hyrox Pro Division athletes average around 5.5cm taller than elite CrossFit athletes. On the Ski Erg specifically, taller athletes with longer levers tend to generate more power per stroke, which favours the Hyrox format.

It is worth noting that at the CrossFit Semifinals and Games level, programming increasingly favours taller, more powerful athletes, so the gap narrows at the elite end of CrossFit competition.

Training Structure

Hyrox training can be highly structured because the event format is fully known in advance. Athletes can practise every movement, combine them in race-order simulations, and build systematic aerobic capacity through long intervals and Zone 2 work. CrossFit training is necessarily broader and more random, because the unknowable nature of competition means athletes must be prepared for anything. This creates more interference between strength and endurance training and places a premium on adaptability rather than specificity.

Conclusion: Bringing It All Together

The Ski Erg Rewards What You Put In

The Ski Erg is an unusual piece of equipment. There is no governing authority on how it should be used. And because it is less prevalent than the rower or bike in most training environments, many athletes arrive at it, in competition or in a WOD, with underdeveloped technique and no clear pacing strategy.

That is precisely why investing time in it pays off disproportionately. The athletes who understand the machine, who have wired in the four-phase stroke, who know their damper setting and their 2K pace, who have practised the hip-chest-arm sequence until it is automatic under fatigue, have a genuine advantage over those who approach it by feel.

The Universal Principles

Whatever your discipline, the following fundamentals apply every time you step onto the machine. It is a full-body movement, driven by the hips, loaded by the core and lats, and finished by the arms. Athletes who treat it as an upper-body exercise leave the majority of available power unused. The sequence never changes: hips back, chest through, arms finish. This is the foundation of every efficient stroke, whether you are 30 minutes into a Hyrox race or 30 seconds into a sprint WOD.

Stance and setup matter. Shoulder-width feet, fingertips on the uprights for distance, already beginning the hinge when you meet the cord. Get this right before you start pulling. The recovery is as important as the drive. A straight, controlled path back up, chest opening before the arms finish, full extension at the top, is what sets up the next powerful catch. Erratic recoveries compound into wasted energy across every stroke.

Stroke rate is your feedback tool. Too high and you cannot breathe. Too low and you are straining. Your damper and your cadence work together, use one to calibrate the other. And breathe with the movement: exhale on the drive to engage the core, inhale on the recovery. This is not just a breathing tip, it is technique.

The Hyrox Athlete: Discipline Over Power

For Hyrox athletes, the Ski Erg demands a specific kind of self-discipline. It is the first station, it comes after a run, and it is followed by seven more stations. The temptation to go hard, especially with fresh legs, a fast heart rate, and a crowd, is real. Resisting that temptation is one of the most important skills a Hyrox athlete can develop.

The physiological reality supports restraint. Hyrox is an aerobic event lasting 60 to 90 minutes. Energy comes primarily from fat oxidation and aerobic glycolysis. Glycogen is finite. Any effort that pushes you deep into anaerobic energy production on the ski accelerates glycogen depletion and will cost you in the final stations when it matters most.

The practical targets are clear: damper 5 or 6, pace 4 to 6 seconds per 500m slower than your 2K maximum, stroke rate 35 to 45 SPM, effort level controlled. Train this pace until it is instinctive. Use long intervals and Zone 2 work to build the aerobic base that sustains it. Supplement carbohydrates during the race to protect glycogen reserves. And practise running in and out of the machine, because in a race the transitions are part of the event.

The CrossFit Athlete: Adaptability and Output

For CrossFit athletes, the Ski Erg requires a different mindset. The format is unpredictable. The intensity required depends entirely on the WOD. Sometimes the ski is a buy-in to be completed efficiently before the real work. Sometimes it is the centrepiece of a sprint effort where every second counts.

CrossFit is predominantly anaerobic in character. Short, explosive bursts with anaerobic energy production at their core are the sport's signature demand. Training on the Ski Erg for CrossFit therefore emphasises higher-intensity intervals, short sprints with full recovery, medium-length threshold pieces, rather than the long, slow Zone 2 sessions that Hyrox athletes prioritise.

Damper 3 to 4 for most WOD-style work. Stroke rate in the high 30s for longer pieces, low 40s for sprints. And the single most important technical skill: maintaining the hip-chest-arm sequence when fatigued, which is when CrossFit athletes are most likely to default to arm-pulling and lose both efficiency and output.

Choosing Your Path

If you are a CrossFit athlete considering Hyrox, the transition requires a deliberate aerobic base-building phase. Your anaerobic engine is well developed, your aerobic system may not be. Zone 2 training, long intervals, and race-pace simulation over the full Hyrox distance should be central to your preparation. And you will need to practise restraint on the ski, a skill that does not come naturally to athletes trained to push hard in every WOD.

If you are a Hyrox athlete considering CrossFit, your aerobic base and your movement efficiency on machines like the Ski Erg are genuine assets. The gaps are likely to be in the technical gymnastics and weightlifting movements, and in the ability to produce short, explosive anaerobic efforts repeatedly. The Ski Erg skills transfer directly, the broader CrossFit skill set requires dedicated development.

If you are training for both, structure your Ski Erg work around the demands of each. Aerobic base and long intervals for Hyrox, high-intensity bursts and technique under fatigue for CrossFit. The stroke mechanics are identical. The pacing, damper, and training emphasis are not.

Final Thought

The Ski Erg is deceptively simple. Two handles, a flywheel, a cord. But inside that simplicity is a movement that demands proper sequencing, genuine body awareness, and the discipline to pace it correctly under pressure. Master the mechanics, understand the physiology of your chosen sport, and the machine becomes a genuine asset in your training and your racing.