Climbing training: finger strength, hangboards, antagonist work and avoiding injury

Fingers and shoulders predict grade

Finger strength explained about two-thirds of the differences in grade in 307 climbers; in another study of 77 climbers, shoulder power and endurance led.

Sources 1, 2

Hangboards build finger strength

Added to climbing, finger training raised finger strength more than climbing alone in experienced adults. Better grades haven't been shown.

Sources 3, 4

Fingers and shoulders get hurt most

Finger pulley injuries lead and the shoulder comes second; 42% of recreational indoor climbers had an arm or hand injury within a year.

Sources 5, 6

Teenage fingers need care

Growth plate stress fractures are the commonest injury in young climbers seen at a specialist centre. The British Mountaineering Council (BMC) advises under-18s not to campus feet-off or dynamically.

Sources 7, 8

Bouldering falls

Jumping off and falling went with leg injuries, and ankle fractures dominate hospital data. Climb down when you can (our suggestion).

Sources 9, 10

Antagonist training is traditional and untested

It's good general strength training, but no study has shown it prevents climbing injuries; warm-ups, stretching and finger taping haven't been shown to either.

Source 11

Gripping, over and over

Climbing is repeated, near-static gripping with short rests. Lead routes test forearm endurance, and bouldering short, all-out efforts. In 307 climbers, finger strength explained most of the differences in grade, followed by intermittent finger endurance.

Source 1

The main movements

Gripping in three main ways (open hand, half crimp and full crimp), pulling and locking off, pressing and mantling, high steps and turning the hip in to the wall, and in bouldering, falling and landing.

Where the load falls

The sites the studies point to:

• The finger flexor tendons and the pulleys that hold them against the bone, above all the A2 and A4 pulleys.
• In teenagers, the growth plates at the middle finger joint.
• The shoulder, in pulling and big dynamic moves.
• The tendons on the inner elbow; golfer's elbow became more common with years of climbing in cross-sectional studies.
• The ankles and knees, in bouldering falls.

Sources 5, 7, 11, 12, 10

How climbers' bodies adapt

Climbers have stronger shoulder extensors than flexors (a ratio of 0.74 against 1.13 in non-climbers), more upward rotation of the shoulder blade at full reach, and, in high-level men, more rounding of the upper back. These are adaptations: none of these studies linked them with pain, and our posture guides explain that posture isn't a proven cause of pain.

Sources 13, 14, 15

How often climbers get hurtEmerging evidence

Measured four ways; the first two studies followed climbers forward and give the best picture:

• Recreational indoor climbers: 13 arm and hand injuries per 1,000 hours of climbing, and 42% had a new one within a year (426 Dutch climbers).
• Indoor boulderers: 44% injured over 12 months (507 climbers); 78% of injuries were minor, 63% in the arms and 23% in the legs.
• Acute injuries reported to one climbing wall: 0.02 per 1,000 hours over 515,337 visits; overuse injuries weren't counted.
• At a specialist clinic: fingers were 52% of 911 injuries and the shoulder came second; 531 were overuse injuries. Clinic series show what reaches specialists, not how often climbers get hurt.

Sources 6, 9, 16, 5

Finger pulley injuriesStrong evidence

Pulleys are the bands that hold the finger tendons against the bone. Pulley injuries are the commonest finger injury at a specialist clinic, now more often the A4 than the A2 pulley, and were found consistently across 45 studies of sport climbing and bouldering. Fingers were 36% of arm and hand injuries in recreational climbers.

What raised the risk: crimping, climbing harder, bouldering, campus board training (odds ratio 2.48) and a previous injury (odds ratio 3.05). Our finger pulley injury guide covers the grades, tape and rings, and a staged return; the warning signs below cover a pop or snap.

Sources 5, 17, 6, 11

The shoulderEmerging evidence

The second commonest site at a specialist clinic, and rising. Big dynamic moves and volume are suspected, and a previous injury tripled the odds of a new arm or hand injury in recreational climbers. See our shoulder pain, shoulder impingement and shoulder dislocation guides.

Sources 5, 6

The elbowEmerging evidence

Golfer's elbow (pain at the inner elbow) became more common with years of climbing in cross-sectional studies. Tingling in the ring and little fingers points to the ulnar nerve at the elbow instead. See our golfer's elbow and ulnar nerve entrapment guides.

Source 11

Growth plate stress fractures in teenagersStrong evidence

At a specialist referral centre, these stress fractures were 45% of injuries in climbers under 18, most of them under 16. Across 11 studies, 98% were at the middle finger joint, at an average age of 14. They come on gradually, with pain on the back of the joint, and the growth spurt (around 12 to 13 for girls and 13 to 15 for boys) is the riskiest time. Untreated, they can leave the joint permanently misshapen; most heal with weeks to months off hard climbing.

Sources 7, 18, 19, 20, 21

Bouldering fallsEmerging evidence

In 507 indoor boulderers followed for a year, leg injuries were fewer than arm and hand injuries but more serious, and were linked with falling (odds ratio 2.92) and jumping off the wall (odds ratio 4.39); heavily downturned shoes went with more serious injuries (odds ratio 2.58).

In hospital data, the ankle was 37% of bouldering injuries at one emergency department, and ankle fractures were 40% of diagnoses at a UK major trauma centre, after falls of 2.9 metres on average; a quarter needed an operation. Our ankle sprain guide covers milder sprains.

Sources 9, 12, 10, 22

A shoulder programme for climbers: one small trialEmerging evidence

In 84 male student climbers aged 18 to 19 in Ukraine, a programme of closed-chain exercises (hands or feet fixed, as in a push-up), slow lowering and strength work, done 3 to 4 times a week for a year according to a review, cut shoulder injuries from 3.2 to 0.5 per 1,000 training sessions. A companion paper on the same students reported fewer elbow injuries too.

The exercises, doses and compliance aren't published in the trial's summary, and its reported statistics don't fully match the rates, so treat the size of the effect with caution.

Sources 23, 11

Load and gripEmerging evidence

In 426 recreational climbers, campus board training and a previous injury predicted arm and hand injuries. Across 34 studies, harder climbing, bouldering and the crimp grip went with overuse injuries. For teenagers, specialists advise less crimping, watching training load and recovery, and education.

Sources 6, 11, 7

FallsEmerging evidence

Jumping off the wall and falling went with leg injuries. Climb down rather than jumping from the top where you can, land on both feet with your knees bent and roll back, and keep the landing zone clear (our suggestions). Hospital series show ankle fractures from falls of around 3 metres.

Sources 9, 10

Warm-ups, stretching and taping: no protection shownEmerging evidence

Warming up made no difference to injuries in three studies, two of them following climbers forward, and cooling down went with more injury in one, probably for other reasons. Stretching wasn't protective, finger taping didn't protect boulderers in two prospective studies, and none of the preventive measures studied in 507 boulderers was protective. Warm up to climb well, as our warm-up guide says, not as proven protection.

Sources 11, 6, 9

Antagonist training: never testedMixed evidence

No study has tested push or extensor work for preventing climbing injuries. The antagonist section below sets out what is and isn't known.

Source 11

What predicts climbing abilityEmerging evidence

Finger strength explained 68% (men) and 64% (women) of the differences in grade in 307 climbers. In 77 climbers, shoulder power and endurance (maximal pull-ups, arm-cranking power and a bent-arm hang) were the main determinants, with finger and grip strength close behind; in small training studies, raising them by 42% to 67% went with 2 to 3 grades of improvement. Specific strength beat general strength in 41 climbers, and in a test battery of 132 climbers, flexibility and general strength mattered only up to a point.

These studies compared climbers at one point in time, so they show what goes with a higher grade rather than what produces one.

Sources 1, 2, 24, 25

Climb, and add specific strengthEmerging evidence

A review of what makes climbers successful pointed to forearm strength and endurance, strength for your size, and finger hang times. Climbing trains these, and adding specific training helped more than climbing alone (see hangboards below).

Sources 26, 3

Fitting it in

Our editorial plan, built on the trials and the BMC's advice:

• Finger training twice a week, at the start of a session after the warm-up, while you're fresh: the BMC says to use a campus board at the beginning of your training session, because tiredness increases your risk of injury. The hangboard trials trained 2 or 3 times a week.
• At least a day between hard finger sessions; in one trial, climbers trained when they felt sufficiently rested.
• Antagonist and shoulder work twice a week on lighter climbing days.
• Nothing hard for the fingers the day before a project or a competition.

Sources 8, 27, 4

Hangboards build finger strengthStrong evidence

In a meta-analysis of randomised trials in active climbers, adding climbing-specific strength training to climbing beat climbing alone. For fingerboard training, the gain in finger strength was small to moderate (standardised mean difference 0.41; 95% confidence interval 0.03 to 0.80), with larger gains in how fast force rose and in hang endurance. Most participants were advanced or elite adult men.

Source 3

What the trials didEmerging evidence

All in adults with climbing experience:

• 30 intermediate to advanced climbers new to hangboards: 8 weeks, 2 or 3 times a week when rested. Adding 1.25 kg whenever a 10-second hang held in the last of 3 sets raised grip strength more than climbing alone; moving to smaller edges didn't.
• 35 intermediate to advanced climbers: 10 weeks, twice a week, in 48-minute sessions with about 10 minutes of actual hanging: 7 seconds on and 3 off, 7 times per series, 6 series per set, 2 sets. The first 2 weeks were at the easiest levels, and climbers moved up only when they finished without failing. Peak finger force rose 17%; hang time rose 12%, but no more than in climbers who only climbed.
• 54 advanced and elite climbers: 4 weeks, twice a week; maximal 6-second hangs and hard intermittent hangs raised maximal strength, and easier intermittent hangs raised endurance.
• Advanced and elite climbers and boulderers: 8 weeks of intermittent hangs raised grip endurance 45%; 4 weeks of fingerboard training added 2.5 kg of grip strength and longer hangs; small-hold hangs raised how fast force rose by about 30%.

Sources 27, 4, 28, 29, 30, 31

Better grades: not shownMixed evidence

The trials measured finger strength, not grades, and the 10-week trial says it can't conclude that climbing performance improved.

Sources 3, 4

Start easy and progress slowlyEmerging evidence

The BMC's basic routine: a decent-sized hold, four fingers open-handed on each hand; hang for 7 seconds and rest for 3, six times; rest 3 minutes; repeat 2 or 3 times; keep a slight bend in your arms. To make it harder, use a smaller hold, add a few kilograms or rest less; to make it easier, use a bigger hold or take some weight on a foot or a pulley. It's governing-body advice rather than a tested programme, and the trials likewise started at the easiest levels and added load in small steps.

Sources 32, 4, 27

Who it's for

The trials recruited adult climbers with experience and healthy fingers. The BMC's expert says grade matters less than circumstances: a fingerboard can suit even relative novices who can't climb often, while someone who can climb several times a week may do better with more bouldering. Start once any finger injury has healed enough to take the load without getting worse.

Sources 32, 27, 4

The BMC's advice on campus boardsStrong evidence

The BMC's campus board guidance, approved by the medical commission of the International Climbing and Mountaineering Federation (UIAA), says: "We advise that climbers aged under 18 do not campus feet-off or dynamically." It adds: "Younger climbers benefit more from improving their flexibility, co-ordination and technique." A BMC article by two of the commission's members concludes that campus boards aren't recommended for anyone under 18, and advises against added weights at that age.

Sources 8, 33

Our suggestion for hangboards under 18

Under 18, no maximal or weighted hangs and no campus board; climbing, technique and general strength first. This is our editorial suggestion, not a rule: governing bodies set no minimum age for hangboards. The BMC's fingerboard expert warns that very repetitive finger training before growth tails off in the late teens has caused severe finger injuries, and surgeons describing young climbers' growth plate fractures advised against intensive power training at that age.

Sources 32, 33, 34

Why growth platesStrong evidence

Fingers don't finish growing until about 17, and growth plates are weaker than the tendons and ligaments around them. Stress fractures at the middle finger joint are the commonest injury in young climbers seen at specialist centres, at an average age of about 14, and crimping and intensive finger training are the usual story. Yet only 5.7% of 267 young climbers at a US national championship knew that 18 is the age given for starting double-dyno campus boarding.

Sources 19, 7, 18, 35

Pain means stopStrong evidence

The BMC's guide for parents and coaches says a young climber with persistent pain should never be allowed to "work through the pain". A gradual ache on the back of the middle finger joint, with swelling, tenderness or less movement after training, means stopping and seeing a GP, who should refer urgently to a hand surgeon. An X-ray can miss it, and a magnetic resonance imaging (MRI) scan may be needed.

Sources 19, 36

What's shown: climbers' shoulders adaptEmerging evidence

Stronger pulling than pushing muscles at the shoulder, more upward rotation of the shoulder blade at full reach, and more rounding of the upper back in high-level men. These are cross-sectional findings without any link to pain.

Sources 13, 14, 15

What's tested: one shoulder programmeEmerging evidence

The one prevention trial used closed-chain, slow-lowering and strength exercises, but its summary doesn't describe them, so nobody can copy it exactly.

Source 23

What isn't testedMixed evidence

Push-ups, presses and finger and wrist extensor work have never been tested for preventing climbing injuries. One prospective study of boulderers found that weight training went with fewer injuries, an association reported in a 2023 review. Our posture guides explain that posture isn't a proven cause of pain.

Source 11

Our reading

Pushing and forearm-extensor exercises are traditional in climbing, untested for injury prevention, and good general strength training, which the UK's National Health Service (NHS) recommends on 2 days a week anyway.

Source 37

Finger strength on an edgeStrong evidence

Maximal finger strength tests on an edge are reliable, with test-retest agreement (intraclass correlation) of 0.85 to 0.99 across a review of 15 studies, which recommends a 20 to 23 mm edge. A finger hang on an edge is mostly a test of finger strength and tracks grade closely. Compare your result with your body weight: relative to body mass, men and women didn't differ.

Sources 38, 39, 1

Grip dynamometers and bar hangs measure something elseEmerging evidence

A hand-grip dynamometer measures a whole-hand squeeze: it rose 2.5 kg with fingerboard training and went with grade in one study, but it isn't a climbing-specific test. Hangs from a bar on straight or bent arms test shoulder and arm endurance as much as the fingers. Our grip strength test uses dynamometer norms as a health marker, not a climbing test.

Sources 30, 2, 25

Everyone: seven questions

The PAR-Q+ (Physical Activity Readiness Questionnaire for Everyone) asks about a heart condition or high blood pressure, chest pain, dizziness or fainting, other long-term conditions and their medicines, a bone or joint problem that activity could make worse, and being told to exercise only under supervision. If you answer yes to any, check with your GP or a qualified exercise professional first. If you're over 45 and not used to hard exercise, ask a qualified exercise professional before hard finger training, and delay if you're ill.

Source 40

Teenagers, especially during the growth spurt

Fingers finish growing around 17. Follow the BMC's campus board advice, put climbing, technique and general strength first, and treat any pain on the back of a middle finger joint as a reason to stop and see a GP.

Sources 19, 8

A previous finger, shoulder or elbow injury

A previous injury tripled the odds of a new arm or hand injury. Build back gradually, and use our shoulder and elbow guides.

Source 6

A past shoulder dislocation, or a shoulder that feels unstable

Leave out hangs until you've been cleared, as our bar hang page advises; our shoulder dislocation guide has a strengthening plan.

Pregnant

The NHS advises against sports with a risk of falling, which rules out bouldering falls. Talk to your midwife or GP about roped climbing (our suggestion), and see our pregnancy guide.

Sources 41, 40

Osteoporosis

A fall from height risks a fracture: roped climbing or low traversing may suit better (our suggestion). Our osteoporosis guide has more.

A pop or snap in a finger

The NHS says to contact NHS 111 if you heard a snap, grinding or popping noise at the time of the injury, the pain is severe, you feel faint, dizzy or sick from the pain, you can't move the finger or hold things, it has changed shape or colour, or you've lost feeling in part of your hand. See a GP if finger pain stops your normal activities, keeps getting worse or coming back, or hasn't improved after 2 weeks. Pulley injuries are the commonest finger injury in climbers.

Sources 42, 5

A teenager's sore finger joint

A slow onset of pain on the back of the middle finger joint, with swelling, tenderness or less movement after training, means stop climbing and see a GP, and ask for an urgent referral to a hand surgeon, as the BMC's growth plate guide advises.

Source 19

After a fall

Call 999 if someone hit their head and has fallen from a height of more than 1 metre or 5 stairs, was knocked out and hasn't woken, can't stay awake, has a fit, has problems with their vision or hearing, has new numbness or weakness, or their behaviour has changed.

With suspected concussion, stop climbing: 'If in doubt, sit them out'. The UK grassroots guidance says no sport for at least 24 hours, contact NHS 111 within 24 hours, and no return to competition before 21 days.

Sources 43, 44

An ankle or knee after a fall

Call 999 or go to A&E if you heard a crack, the joint has changed shape or points at an odd angle, it's numb or tingling, or the skin has turned blue or grey or is cold. Get help from NHS 111 or an urgent treatment centre if you can't put any weight on it or walk more than a few steps. Ankle fractures are the commonest serious bouldering injury in hospital data.

Sources 45, 10

The shoulder

Ask for an urgent GP appointment or contact NHS 111 for sudden or very bad shoulder pain, an arm you can't move, a shoulder that has changed shape or is badly swollen, pins and needles that don't go away, no feeling in the arm or shoulder, pain that started after a fall, or if you feel feverish or unwell. A shoulder that looks out of place after a fall needs A&E, as our shoulder dislocation guide says.

Source 46

Tingling in the ring and little fingers

That points to the ulnar nerve at the elbow; our ulnar nerve entrapment guide explains when to see a GP.

"Climbing is all about finger strength"Emerging evidence

Finger strength was the strongest single predictor in one large study, but shoulder power and endurance led in another, and finger endurance, technique and body control matter too.

Sources 1, 2, 25

"Hangboards wreck your fingers"Emerging evidence

In adult trials, hangboards raised finger strength, and in one prospective study of boulderers, fingerboard training wasn't linked with more injuries. Campus board training was linked with more injuries in recreational climbers.

Sources 3, 11, 6

"Teenagers should start hangboarding early to get strong"Strong evidence

Growth plate stress fractures are the commonest injury in young climbers seen at specialist centres. The BMC advises no feet-off or dynamic campus boarding under 18, and its fingerboard expert warns that very repetitive finger training before growth tails off has caused severe injuries.

Sources 7, 8, 32

"Antagonist training prevents climbing injuries"Mixed evidence

It's never been tested. It's good general strength training.

Source 11

"Taping your fingers prevents pulley injuries"Emerging evidence

Finger taping wasn't protective in two prospective studies of boulderers.

Source 11

"A finger pop is just a tweak; climb on"Strong evidence

The NHS says a snap or pop at the time of a finger injury needs a call to NHS 111.

Source 42

"Bouldering is safe because there's a mat"Emerging evidence

Leg injuries were linked with falls and jumping off, and ankle fractures dominate hospital data.

Sources 9, 10