Flexibility and Mobility for Climbers: How Flexible Is Enough, Does Stretching Prevent Injury, and a 10-Minute Hip and Shoulder Routine

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You're on a gym boulder that needs a high step, and your foot just won't go up there. A friend says: "You're too stiff. Go home and stretch, it'll stop you getting injured too."

That sentence makes two claims: flexibility will make you climb better, and stretching will make you get hurt less. Research answers them differently. This post covers how much flexibility affects climbing performance, then what we know about stretching and injury, and ends with a 10-minute hip and shoulder routine.

This is part 12 of the Climbing Injuries and First Aid series. For getting back on the wall after an injury, see the previous post, Returning to Climbing After Injury; for the warm-up research, see Climbing Warm-Up.

Flexibility vs mobility

The two words are often used interchangeably. In this post:

• Flexibility: how far a joint can be passively moved. Reaching for your toes while sitting on the floor is flexibility.
• Mobility: the range you can actively move through and control. Getting your foot onto a high hold and then shifting your weight over it to stand up is mobility.

Climbing needs the second one more. Lattice Training's lower-body warm-up and cool-down routine includes an isometric horse stance, described as building "adductor and lower body strength at end range". That is exactly "able to get there, and able to hold it".

Something you can do tonight: sit on the floor with your legs as wide as they'll go and note the distance between your heels. Then stand, hold a wall, lift one leg out to the side as high as you can and hold for 5 seconds. A big gap between the two means you can get into the range but can't yet produce force there.

How much does flexibility matter for climbing?

It matters, but less than you'd think

Mermier et al. (2000) tested 44 climbers graded 5.6 to 5.13c, including hip and shoulder flexibility, and looked at which factors best explained their climbing scores. The variables fell into three components:

• Training-related (strength, endurance and so on): 58.9% of the variance in performance.
• Flexibility: 1.8%.
• Anthropometry (height, arm span and so on): 0.3%.

MacKenzie et al. (2020) tested 77 climbers. Shoulder power and endurance were the main determinants; flexibility, alongside balance and core endurance, was listed as an "important secondary determinant". In men, hip, hamstring and lower-back flexibility correlated with ability; in women, no flexibility measure did.

Enough is enough

The International Rock Climbing Research Association (IRCRA) published a 10-item sport-specific test battery in Draper et al. (2021), with 132 climbers from 7 countries. The flexibility and strength tests only partly separated climbers of different ability; the finger hang and powerslap tests did that best.

The authors suggest climbing may require a threshold level of flexibility, beyond which further improvement may not help. That is the authors' interpretation of their data, not something they measured directly.

General tests miss it; test in climbing positions

The sit-and-reach is the classic school fitness test. Draper et al. (2009) compared several tests:

• Existing tests such as the sit-and-reach correlated poorly with climbing ability.
• A foot-loading test on a purpose-built climbing board correlated most strongly.

Draga et al. (2020) tested 60 elite men climbing 7b–9a and found something different: the sitting and standing straddle tests (hip abduction) correlated with ability, while the authors' climbing-specific tests did not. What the two studies share: the joint that matters is the hip, measured in positions close to climbing.

Something you can do tonight: next time you can't reach a foothold at the gym, try two things first: move your body slightly away from the wall, and turn your hip towards that foot. If changing position gets you there, what you're missing is technique, not flexibility. For turning techniques, see Turning and Twisting in Climbing.

Does stretching prevent injury?

Climbing research: no association

Quarmby et al. (2023) reviewed 34 studies on overuse injuries in adult climbers. Stretching, warm-up and cool-down, taping and hydration were not associated with overuse injury risk.

The stretching finding rests on two studies, one of them prospective. That isn't much evidence, but it points the same way as research in other sports. The authors also note that long static stretches (over 60 seconds) may reduce muscle performance, so they consider it problematic to advise climbers to stretch at length before training or competition.

Other sports: strength training beats stretching

Lauersen et al. (2014) pooled 25 randomised controlled trials with more than 26,000 participants across many sports, not climbing. Stretching had no protective effect; strength training cut sports injuries to less than a third.

Climbing has evidence pointing the same way: in Quarmby's review, a strength training intervention prevented shoulder and elbow injuries. For a routine, see Antagonist and Core Training.

Something you can do tonight: next time someone says "stretch more and you won't get hurt", try: "Climbing research hasn't found a link between stretching and injury; if you want to prevent injury, strength training has more evidence." Then give your weekly training time to strength work first.

The mobility climbing actually uses: hips and shoulders

If it isn't for injury prevention, mobility training has one job: letting your body get into the positions a route asks for.

Hips: most footwork depends on them

• High steps: the foothold is above hip height, so the hip has to flex that far and then let you move your weight over it.
• Turning in and drop knees: the hip needs internal and external rotation. Turning and Twisting in Climbing notes that the wider apart the footholds, the more hip flexibility you need.
• Wide bridging and frog positions: getting your hips close to a vertical wall takes hip abduction, the direction Draga 2020 measured.
• Heel hooks: a high heel hook needs hamstrings that can lengthen. For heel hooks and knee injuries, see The Knee and the Heel Hook.

Shoulders: less research

The 2000 study above did measure shoulder flexibility; it's folded into that 1.8%. A 2025 randomised crossover trial from a Kaohsiung Medical University team had 22 recreational climbers do three 10-minute warm-ups: dynamic stretching with a resistance band, vibration rolling, and a climbing-specific warm-up. All three immediately increased shoulder flexion and internal and external rotation range; vibration rolling increased it most. The study only measured immediate changes, not performance or injury over time.

Something you can do tonight: at the gym, pick an easy route you've done before and deliberately place every foot a bit higher. Whichever position feels most stuck goes first on your mobility list.

A 10-minute mobility routine

The hip exercises come from Lattice's lower-body routine (about 14 minutes in full); the shoulder exercises come from the band warm-up in the Kaohsiung trial. Evidence level: exercises from a coaching routine and a warm-up study; no research has tested this routine's long-term effect. The time per exercise is this post's allocation; Lattice doesn't give per-exercise timings.

About 10 minutes in total. Where to put it:

• Before climbing: as part of the warm-up, with shorter, more dynamic holds. Quarmby's review cautions that long static stretches may affect performance.
• After climbing or on rest days: hold longer. Lattice describes this routine as suitable for either warm-up or cool-down.

Mobility work shouldn't hurt. If you get sharp pain, numbness or a catching feeling in a joint while stretching, stop and get it assessed by a doctor (orthopaedics, rehabilitation medicine) or a physiotherapist.

Something you can do tonight: do the routine once and note your two tightest exercises. In a month, try the same high step on the same route and see whether anything has changed.

Practice: four scenarios

Answers are below each question. Think first, then check.

1. You can't touch your toes in a sit-and-reach, and a friend says that's why you're stuck at V3.

2. You do 15 minutes of static stretching before every session because you heard it prevents injury.

3. On a vertical wall you can never reach a big foothold out to the side, but on the floor your straddle is wide.

4. You feel a sharp pain at the front of your hip during pigeon pose, and for two weeks high steps have hurt too.

Next steps

The last post in the series, Crag First Aid and Accident Response, leaves the gym: how to call for help when something goes wrong at a Taiwanese outdoor crag, how to wait for rescue, and what to carry in a first-aid kit.

References

• Mermier CM et al. Physiological and anthropometric determinants of sport climbing performance. Br J Sports Med 2000
• MacKenzie R et al. Physical and Physiological Determinants of Rock Climbing. Int J Sports Physiol Perform 2020
• Draper N et al. Performance Assessment for Rock Climbers: The IRCRA Sport-Specific Test Battery. Int J Sports Physiol Perform 2021
• Draper N et al. Flexibility assessment and the role of flexibility as a determinant of performance in rock climbing. Int J Perform Anal Sport 2009
• Draga P et al. Importance and Diagnosis of Flexibility Preparation of Male Sport Climbers. Int J Environ Res Public Health 2020
• Grant S et al. Anthropometric, strength, endurance and flexibility characteristics of elite and recreational climbers. J Sports Sci 1996
• Quarmby A et al. Risk factors and injury prevention strategies for overuse injuries in adult climbers: a systematic review. Front Sports Act Living 2023
• Lauersen JB et al. The effectiveness of exercise interventions to prevent sports injuries: a systematic review and meta-analysis of randomised controlled trials. Br J Sports Med 2014
• Han HP et al. Comparing the Effectiveness of 10-Minute Dynamic Stretching, Vibration Rolling, and Climbing-Specific Warm-Ups on Exercise Performances in Rock Climbers. J Sports Sci Med 2025
• Warm Up and Cool Down (Lattice Training workout)