Pulleys in Rock Climbing: Understanding, Preventing, and Managing Them with Taping

A pulley injury is the one injury every climber fears. A snap, a sharp pain in the finger—and the climbing session comes to an abrupt halt. However, understanding how this structure works and adopting the right habits can make all the difference in preventing a long-term injury and ensuring a smooth return to climbing.

In this article, we’ll explain what a pulley is, why climbers are so prone to pulley injuries, and how taping can help you keep climbing or recover more effectively. Julien Rémillieux, a physical therapist specializing in climbing and a climber himself, shares two climbing taping techniques you absolutely need to know.

What exactly is the finger pulley?

What it is, anatomically speaking

Your fingers are made up of flexor tendons, structures that allow you to close your hand and grasp objects. To ensure that these tendons remain firmly attached to the bones, they are held in place by small bands of ligaments that form fibrous sheaths along the fingers, called pulleys. 

Climbers: particularly vulnerable

Although pulley injuries are rare in everyday life, they are common in rock climbing because the pulleys are subjected to considerable stress.

Every time you hang from a pull-up bar or hold yourself in a pull-up position, the pulley system bears a load that can be several times your body weight. The A2 and A4 pulleys—located at the base and in the middle of the finger—are under the most strain and are therefore the most prone to injury.

Added to this are muscle fatigue toward the end of a session, the tendency to push through despite warning signs, and sometimes progressing too quickly on difficult holds. All of these factors increase the risk of climbing injuries.

Warning signs that should prompt you to seek medical attention

Pulley injuries can take many forms, ranging from mild discomfort to a complete tear. Here are the warning signs you shouldn't ignore:

• A sudden, sharp pain in a finger during or after climbing, sometimes accompanied by an audible popping sound.
• Pain on palpation on the inner side of the finger, often located at the base or in the middle.
• Swelling, localized warmth, or a bruise that appears within the next few hours.
• Pain that persists even at rest or that consistently returns as soon as you start climbing again.

If you recognize one or more of these signs, the first thing you should do is stop your workout and consult a healthcare professional—ideally a physical therapist or a doctor who specializes in sports medicine. A pulleyinjury that isn’t properlytreated can worsen and become chronic.

How to Avoid Pulley Injuries While Climbing

Warming up your fingers before the session

This is the first line of defense against pulley injuries, and it’s also the one most often overlooked. We tend to warm up our shoulders, arms, and back, and forget that our fingers also need to be warmed up gradually.

A good finger warm-up starts with gentle, weightless exercises: slow flexions and extensions, joint rotations, and self-massage of the tendons. You then gradually increase the intensity, starting with wide, comfortable holds before moving on to crimps or more technical holds. You can use a strap during the warm-up if you’re coming back from a break or if you’re still feeling some residual soreness.

Want to learn more about warming up? We've got some additional exercises for you in our article: Climbing Warm-Up: How to Properly Prepare Your Body Before Climbing

Progress: Don't Go Too Fast

Most pulley injuries occur in two situations: returning to training after a break (vacation, injury, busy period) and progressing too quickly to higher levels of difficulty.

In both cases, the principle is the same: tendons and pulleys take longer to adapt to the load than muscles do. You might feel like you’re in good shape and can hold onto the holds easily, but your pulleys aren’t ready yet.

That's why it's important to progress gradually, avoid overly long recovery sessions, and not climb intensely day after day without giving your fingers time to recover.

Rest as a Preventive Measure

Rest is not a waste of time; it is an integral part of training. It is during recovery periods that tendons strengthen and adapt to the stresses of climbing.

In practical terms, this means: taking rest days between intense sessions, listening to your body’s signals (pain that recurs with every session isn’t normal), and not hesitating to reduce the intensity or volume when you feel your fingers getting tired. A minor ache ignored today could turn into a serious injury in two weeks.

The finger strap: What is it really for?

Understanding the Role of the Physical Therapy Strap in Rock Climbing

Finger taping is an elastic or non-elastic adhesive tape applied around the finger to support the pulley and limit stress on the tendon during physical activity. It is a technique used by specialized physical therapists and adopted by many climbers, from amateurs to professionals.

Its role is mechanical: by wrapping around the finger, it provides external support that reduces the strain on the pulley during flexion. It does not eliminate the pain or repair the injured structure, but it can help support the recovery phase after an injury or allow you to continue climbing under more controlled conditions.

When to use it and in what context

The finger strap is useful in several situations: as a preventive measure if you’ve previously had a pulley injury and are returning to climbing, during a gradual return-to-climbing phase after an injury, or when you feel residual tenderness in a finger without the pain being debilitating.

However, it is not a substitute for the advice of a healthcare professional. If you have acute pain, significant swelling, or pain at rest, consult a healthcare professional before applying a wrap and getting back to climbing.

What the strap Can't Replace

The strap is a supportive tool, not a cure. It does not replace the rest needed for healing, rehabilitation work with a specialized physical therapist, or a gradual return to activity. It is a useful and effective mechanical support when used in the right context, but it should be used with discretion.

Two Finger-Loop Techniques According to Julien Rémillieux

Julien Rémillieux, a physical therapist specializing in climbing, shared two taping techniques that are particularly well-suited for pulley injuries. We invite you to watch our full video below to see the technique in detail; below, we’ve summarized the key points of each technique.

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The Cross Front

The Cross Front is a finger-strap technique that involves crossing the strap over the front of the finger to support the pulley.

Technical Specifications:

• Recommended width: 13 mm
• Tension: slight
• Finger position: flexed

This is an accessible technique, often used as a first-line treatment or for mild sensitivity. The light tension and narrow width of the strip help maintain good finger mobility while providing targeted support.

H

The H is a more enveloping technique, whose shape resembles the letter H when viewed from the front.

Technical Specifications:

• Recommended width: 38 mm
• Voltage: medium
• Finger position: flexed

The wider strap and slightly higher tension provide greater support. This technique is recommended when more support is needed, particularly when returning to activity after a more serious injury.

With both of these techniques, the goal is not to compress the finger but to support it. If you feel any circulation issues or numbness after applying the strap, remove it immediately.

The Right Equipment

To use these techniques, you'll need a suitable strap. At YY Vertical, we have two that you can use for Julien Rémillieux's techniques: the VerticalTape Classic (25 mm), ideal for precise techniques like the Front Cross, and the VerticalTape Draw (38 mm), perfect for more enveloping techniques like the H.

Both are available directly on our website, yyvertical.com.

Tip: You can tear the strap lengthwise if it's too wide.

Conclusion

Pulleys injuries in rock climbing are serious, but they are not inevitable. Understanding how these structures work, developing the right habits during training, and knowing when to use a finger strap are valuable assets for continuing to climb for a long time.

Taping isn't a miracle cure. It's just one tool among many, to be used in combination with rest, a sensible training progression, and guidance from a healthcare professional if needed. If you have any concerns about persistent pain, consult a professional before getting back on the wall.

And if you want to take your physical training to the next level and reduce your risk of injury, check out our resources on warm-ups and training for climbers.