Adaptive

A field guide to adaptive snowsports

Almost everyone can get down the hill. The question is how.

Adaptive snowsports isn't one activity. It's equipment, instructor technique, and assessment, matched to a person. This page covers the three things a program sorts out before a first lesson: what the instructor uses, what the athlete rides, and what the body brings to the hill.

How to read the marks — points of contact with the snow

Two-track Two skis, no outriggers

Three-track One ski, two outriggers

Four-track Two skis, two outriggers

Sit-down, one ski Mono-ski

Sit-down, two skis Bi-ski

Board Standing or seated

Teaching aids
Adaptive equipment
Common conditions
Quick reference
No Limits

Section one

Teaching aids

Teaching aids belong to the instructor. Every one of them is meant to come off — a lesson progression is largely the story of removing aids one at a time.

Control and assist Instructor manages speed or line

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Photo Instructor behind and slightly uphill of a bi-ski, tether lines visible and slack

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Tethers & reins

Also: ropes, leashes, tether lines

Straps from the instructor to a bi-ski, mono-ski, board, or ski tips — to slow, shape a turn, or stop.

Attachment points are built into every bi-ski
Secure at the wrists, not the upper arms
Ski behind and slightly uphill, in a narrower corridor than the student
Stay in rhythm with the turn

Read thisWell-used tethers are a conversation, not a steering wheel. Constant tension means the student is being driven, not taught.

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Photo Bi-ski at rest, side view, fixed outrigger arms extended

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Fixed outriggers

Bolted, not handheld

Small skis on rigid arms bolted to a bi-ski frame — training wheels for a first-time sit-skier.

Lets a new rider feel movement without also managing balance
Raised or removed within a few lessons
Next step is handheld outriggers

Pairs withBi-ski, early lessons, students with limited trunk control

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Photo Skier standing inside an upright frame, front three-quarter view

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Snow slider

Also: ski legs, walker frame, Slide Unique

An adjustable frame the student stands inside, riding on its own small skis.

Wide, stable base for balance, strength, or coordination deficits
Tipping angle and wedge angle both adjust — don't max both at once
Common route for stroke, brain injury, cerebral palsy, and MS

SafetyTethering is mandatory. A student in a slider often cannot stop it, especially in a hurry.

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Photo Snowboard on snow with U-shaped bar mounted to the deck

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Rider bar

Snowboard handlebar

A U-shaped bar mounted to the board for the rider to grip or the instructor to hold.

Gives the rider something to load against
Lets the instructor influence edge angle without grabbing the person
Most lessons start on standard gear; the bar comes out when adapted technique isn't enough

Pairs withStanding snowboarders with balance or trunk challenges

Shape and reference Student holds the position themselves

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Photo Close crop of two ski tips joined by the connector

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Tip connectors

Also: ski bra, tip clamp, edgie-wedgie, tip retention device

A clamp or bungee joining the ski tips so they can't cross.

Holds a wedge the student doesn't have to generate
Staple for hemiplegia and one-sided weakness
Cheap, light, removable mid-run — often the last aid to go

Watch forTips joined at the front still allow tails to converge. Tip connectors do not replace a wedge, they protect one.

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Photo Instructor and student each holding the hoop, mid-run

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Hula hoop

Also: hoop, Hoolie

Instructor and student each hold part of a rigid hoop.

Sets the distance between them
Gives the student something stable to pull against
Communicates turn timing through the hands rather than words
Common with young children, intellectual disability, and vision loss

Read thisThe hoop should feel like a handrail, not a tow rope. If the instructor is pulling, the terrain is too hard.

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Photo Two skiers side by side sharing a horizontal pole

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Bamboo pole

Also: shared pole, ski poles held crosswise

A single length of bamboo held horizontally between instructor and student.

Transmits rhythm and edge change through touch
Acts as a fixed reference when a student's sense of level is disrupted
Useful where lateral sliding upsets balance — constant on a snowboard

Pairs withVision loss, intellectual disability, early snowboard lessons

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Photo Torso harness with grab handles, worn

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Harness & handle systems

Also: vest with grab handles, gait belt

Worn on the torso, with handles or straps the instructor can hold.

Keeps a student upright, manages a fall, assists through lift loading
Avoids grabbing at clothing
Related aids instructors will meet: Sno-Wing, Horse-and-Buggy, Ski-Pal

Watch forA harness supports; it does not steer. Skiers hung from a harness learn to hang, not to balance.

Communication and guiding Aids that carry information, not force

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Photo Guide and skier in high-visibility bibs, guide ahead

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Guiding for vision loss

Bibs, verbal cueing, guide positioning

Skier and guide both wear high-visibility bibs so others don't cut between them. Position depends on the skier:

Ahead, facing backward — first-timers
Alongside — skiers with usable peripheral vision
Behind, calling the line — experienced skiers
Racing uses helmet radio; Bluetooth headsets are now common in lessons too

LanguageCues describe terrain and action in advance — "turning right in three" — not commentary after the fact.

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Photo Instructor and student paused trailside, lesson card in hand

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Structure and routine supports

Visual schedules, first-then boards, social stories

For autistic students and students with intellectual disability, the aids are informational rather than physical.

A predictable running order, repeated the same way each visit
A picture sequence of the lesson and a clear signal for what comes next
Small achievable pieces with frequent demonstration
Let success carry the progression, not explanation

Read thisA meltdown on the hill is usually a sensory or predictability problem, not a defiance problem. Reduce input before adding instruction.

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Photo Coach's handheld wireless remote, in glove

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Remote override

TetraSki and powered systems

On powered equipment the coach carries a wireless remote that can override the skier's inputs.

Works as a safety backstop
Also a teaching device — demonstrate an edge change the student then reproduces
A slack tether stays attached as mechanical backup, normally carrying no tension

Pairs withTetraSki, high-level spinal cord injury, complex physical disability

Section two

Adaptive equipment

Equipment belongs to the athlete. Two questions decide it: sitting or standing, and how much trunk control and upper-body strength there is to steer with. Programs hold fleets, so all of it can be tried before anything is bought.

Sit-down equipment Seated in a bucket, steering from the trunk and arms

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Photo Rear three-quarter view showing bucket, shock and single ski

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Mono-ski

Also: uni-ski, sit-ski

A moulded bucket seat on a shock-absorbing frame, mounted to one standard alpine ski.

Behaves like a ski — carves genuinely well, and is what's raced
Ridden with handheld outriggers
Demands solid sitting balance and real upper-body strength
Most models lift-assist so the skier can load a chairlift independently

TypicallyLower-limb amputation, paraplegia, spina bifida, neuromuscular conditions with good trunk control

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Photo Side view showing the articulating linkage between the two skis

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Bi-ski

Also: dual-ski

A bucket seat over two skis joined by an articulating mechanism that tips them onto edge together.

Far more forgiving than a mono-ski; the standard starting point
Scales down: tethered, with fixed outriggers and handlebars, for minimal trunk control
Scales up: ridden independently, steering with head and shoulder movement alone

TypicallySpinal cord injury, cerebral palsy, muscular dystrophy, spina bifida, brain injury, anyone new to sit-skiing

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Photo Detail of the joystick and sip-and-puff tube at the seat

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TetraSki

Joystick or sip-and-puff control

The significant capability change of the last decade. Electric actuators tip the skis in response to a joystick or to breath pressure through a tube.

Joystick feels like a power wheelchair control; sip-and-puff is the alternative
Not a motor — the skier's turn shape controls speed, as in any alpine equipment
Head and torso support, adjustable seating, and a coach's remote override are built in
Built by Tetradapt; placed with partner programs across the US, Canada, and Europe

TypicallyHigh-level spinal cord injury, significant upper-extremity impairment, muscular dystrophy, ALS, complex physical disability

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Photo Seat frame and twin handlebars mounted to a snowboard

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Sit-board

Also: mono-board, Twinrider

A seat frame mounted to a regular snowboard, letting the rider tip it onto toe or heel edge.

Turns come from the arms, outriggers, a hand-pick, or handlebars
The Twinrider mounts to standard binding inserts and steers by twin handlebars
Symmetrical frame, so regular and goofy riders use the same rig

TypicallyWheelchair users who want the feel of riding rather than skiing

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Photo Side view on snow, foot skis visible

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Ski bike

Also: snow bike, adaptive skibike

A bike frame on skis, with small skis on the rider's feet for balance.

Sits between standing and sitting — legs steer but don't carry full weight all run
Good answer for fatigue, limited standing tolerance, or partial leg strength
Newer adaptive models self-load on a chairlift
Not permitted at every resort, and some allow adaptive use only — call ahead

TypicallyMS, limb difference, brain injury, stroke, limited endurance or standing tolerance

Stand-up equipment On the feet, with support added where it's needed

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Photo Pair on snow, one flipped to crutch position

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Outriggers

Handheld, for standing or seated use

Forearm crutches with short skis on the ends, replacing ski poles.

Two extra contact points for balance, turn initiation, and braking
What makes three-track and four-track skiing work
Most flip so the tip rotates up and they serve as plain crutches at the base
Mono-skiers and bi-skiers use the same tool

TypicallySingle-leg amputation, post-polio, balance and coordination deficits, all sit-down skiers

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Photo Skier on one ski with two outriggers, mid-turn

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Three-track

One ski, two outriggers

A technique more than a product: one ski, two outriggers.

Used when one leg is absent or non-weight-bearing and no prosthesis is worn on snow
Falling and getting back up is a core skill here, not an afterthought — it happens on one leg

TypicallyAbove-knee amputation, post-polio, one-sided weakness

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Photo Skier on two skis with two outriggers, mid-turn

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Four-track

Two skis, two outriggers

Two skis, natural or prosthetic legs, and two outriggers.

The workhorse for moderate motor impairment — the legs work, balance needs backup
Frequently combined with tip connectors or tethers early on

TypicallyCerebral palsy, spina bifida, MS, muscular dystrophy, below-knee amputation

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Photo Skier on standard equipment with a guide alongside

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Two-track

Standard skis, no outriggers

Standard skis with normal poles or none — the largest category in most programs.

Not every disability shows up in the equipment
Vision loss, hearing loss, autism, intellectual disability, epilepsy, ataxia, mild cerebral palsy, TBI
Many below-knee amputees ski here on a prosthesis

Read thisA person on standard skis in a lesson is not "less adaptive." The adaptation is in how the lesson is taught.

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Photo Ski-specific prosthetic limb, boot attached

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Prosthetics for snow

Sport-specific limbs and components

Sport-specific components built for repeated impact, with shock and suspension systems.

BioDapt's Moto Knee and Versa Foot are widely used examples
May sit inside a standard boot or, in some setups, mount directly to the board
Suspension sleeves and locking liners stop the socket slipping
A transfemoral knee often rides held in flexion; a heel lift sets the stance
Some bilateral above-knee riders skip prosthetics and put residual limbs straight into boots

Tell your prosthetistCold, moisture, and impact loading are all outside a walking leg's design brief. The limb should be set up for snow before the trip.

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Photo Binding riser and canting shim under a boot

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Boot and binding modifications

Risers, canting, lifts, angles

The least visible and most underrated category.

Risers compensate for leg-length difference
Canting corrects an alignment the skier can't correct with muscle
Heel lifts change stance angle; boot punching and custom liners handle shape, tone, and pressure points
On a board: binding angles a few degrees flatter on the prosthetic side, plus an extra stomp pad for riding switch

Read thisA well-fitted standard setup often outperforms specialized gear. Fit is checked first, always.

A note on competition classes

Codes like LW1–LW12, B1–B3, or AS1–AS4 are Paralympic sport classes, not medical categories.

LW stands for Locomotor Winter
LW1–LW9 — standing athletes
LW10–LW12 — sit-skiers, grouped by sitting balance
B and AS series — vision

Amputation & congenital limb difference

Level and side drive everything. Below-knee amputees frequently ski two-track on a prosthesis; above-knee often three-track. Upper-limb differences affect poles, outriggers, and lift loading rather than the skis.

Usual routes

Two-track, three-track, four-track, mono-ski, standing snowboard

Comes up in assessment

Which is the stronger and better-coordinated leg — not always the same one — since that decides lead foot on a board
Socket suspension and slippage
Absent sensation in a prosthetic foot
Ankle and knee flexibility
Weight-bearing tolerance
Residual limb warmth

Post-polio & peripheral nerve injury

Asymmetric weakness with preserved sensation. Outriggers do most of the work, and pacing matters — post-polio fatigue doesn't respond well to pushing through.

Usual routes

Three-track, four-track, ski bike

Comes up in assessment

Fatigue thresholds
Cold intolerance in affected limbs
Joint protection
Fracture history

Sensory

Blindness & low vision

Equipment is usually standard; the adaptation is guiding. Range runs from no light perception to reduced acuity or restricted field, and each calls for a different guide position and verbal style.

Usual routes

Two-track with a guide, snowboard with a guide

Comes up in assessment

Type and extent of vision loss
Light and contrast sensitivity in flat light
Previous mobility training
Preference between radio and voice
Whether a physical link like a bamboo pole is welcome

Deaf & hard of hearing

The barrier is instruction delivery, not movement — though some causes of hearing loss also affect vestibular balance, which shows up more on a board than on skis.

Usual routes

Two-track, snowboard

Comes up in assessment

Preferred language and whether an ASL interpreter is available
Sightlines for demonstration
Agreed hand signals
Helmet fit around processors or aids
Balance involvement

Asking before any physical assist
Predictable structure
An exit that costs nothing socially
Lift lines and crowd density
Quieter times of day

Cuts across every condition above

Medical considerations on the hill

What instructors watch for regardless of diagnosis — and why adaptive intake paperwork runs longer than a standard ski school's.

Temperature regulation

Spinal cord injury above the mid-trunk, and some spina bifida, impairs the ability to sense cold — a skier may have no idea they're freezing. Seated skiers also generate little heat and sit close to the snow. Check visually; don't just ask.

Skin and pressure care

Pressure over bony points, plus shearing, plus wet insensate skin causes tissue damage. Shift weight roughly every 15 minutes, fit cushions properly, stay dry, check skin before and after. An open pressure ulcer means no riding until it heals.

Fatigue and pacing

For MS, post-polio syndrome, neuromuscular disease, and brain injury, fatigue is the constraint the lesson is built around. Short runs with real rest produce more skiing than one long push.

Spasticity and tone

Cold and startle both increase tone. Spasticity affects boot fit, seating, and transfers, and changes through the day — what was comfortable in the lodge may not be an hour out.

Medications

Reviewed at intake because the effects show up on snow: sedation, blood pressure changes, altered thermoregulation, impaired balance, photosensitivity, and blood thinners changing what a fall costs.

Transfers and lift loading

Where most injuries happen, to athletes and instructors alike. Rehearse it, use enough people, and agree a stopped-lift procedure in advance.

Autonomic dysreflexia — a medical emergency

People with spinal cord injuries at or above roughly T6 can experience a sudden, dangerous blood pressure spike triggered by something the body cannot feel — a blocked catheter or full bladder, bowel distension, a pressure sore, extreme cold or heat, a limb caught in an extreme stretch, or a blow to the body. Signs include pounding headache, flushing or blotching and sweating above the injury level, goosebumps, chills without fever, blurred vision, a sense of impending doom, and sudden difficulty communicating. Instructors are trained to act immediately: keep the person upright, loosen straps and clothing, look for and remove the cause, move to a warm place, and call ski patrol. Left unmanaged it can lead to stroke or death.

Putting it together

Quick reference

A starting point only. An on-snow assessment overrides everything here, and plenty of people land somewhere this table doesn't predict.

Functional starting point → typical equipment → aids commonly used early
If the person	Usually starts on	Common early aids	Frequently seen with
Stands and balances well	Two-track, standard skis or board	Tip connectors, tethers, hula hoop, verbal cueing	Vision loss, hearing loss, autism, intellectual disability, epilepsy, below-knee amputation
Stands on one leg	Three-track, one ski and outriggers	Fall recovery practice, lift-loading rehearsal	Above-knee amputation, post-polio
Stands but balance is unreliable	Four-track, two skis and outriggers	Tip connectors, tethers	Cerebral palsy, spina bifida, MS, muscular dystrophy
Stands only with substantial support	Snow slider, or ski bike	Mandatory tethering, harness	Stroke, brain injury, advanced MS, cerebral palsy
Sits, with good trunk control	Mono-ski	Handheld outriggers, tethers while learning	Paraplegia, lower-limb amputation, spina bifida
Sits, with limited trunk control	Bi-ski	Fixed outriggers, handlebars, tethers	Higher spinal cord injury, cerebral palsy, muscular dystrophy, brain injury
Has minimal strength or dexterity	TetraSki, joystick or sip-and-puff	Coach remote override, slack safety tether	Tetraplegia, ALS, advanced neuromuscular disease
Wants to ride rather than ski	Standing snowboard, or sit-board	Rider bar, bamboo pole, tethers, prosthetic setup changes	Limb difference, wheelchair users, balance impairment

Learn more about No Limits

No Limits is our adaptive ski and snowboard program. Everything on this page is here because we want you to know what's possible before you ever call us.

Adaptive equipment is expensive and highly individual — almost nobody buys first. We hold the fleet.
You'll be assessed and fitted during your lesson, not beforehand over the phone.
Tell us what you want to do on the hill. We'll work out the setup.

Learn More about No Limits

Get in touch ahead of your visit — specialized equipment needs to be reserved.

How instructors are trained

Our instructors certify through PSIA-AASI. In the US, adaptive certification builds on a standard credential — Level I in alpine or snowboard comes first. From there: three adaptive certification levels, plus specialist credentials in five areas — cognitive, visual impairment, stand-up physical diagnoses, bi-ski, and mono-ski.

Assessment covers adapted teaching, equipment and tactics, diagnoses and medications, communication, and movement analysis.

About the language here

This page uses the functional vocabulary programs actually speak — bi-ski, three-track, tethered — because that's what you'll hear on the hill.

People differ on person-first ("a person with a disability") versus identity-first ("a disabled person"); both are used by preference. Ask. Terms like "wheelchair-bound," and older clinical language for intellectual disability, appear in old manuals and are no longer appropriate.

This page is general education, not medical advice. It cannot substitute for an on-snow assessment by a qualified adaptive instructor or for guidance from your own physician, physiatrist, physical therapist, or prosthetist — particularly around cardiac conditions, seizure disorders, atlantoaxial instability, recent surgery or fusion, skin integrity, and autonomic dysreflexia. Adaptive equipment and instructional practice change quickly; contact No Limits to confirm what we currently carry. Sources drawn on include PSIA-AASI adaptive teaching guides and certification standards, Move United, Tetradapt and University of Utah TRAILS, FIS and IPC classification materials, adaptive program resources, and clinical literature on medical considerations in adaptive sport.