Rope safety

The risk that matters most

Most people worry about circulation when they think of rope. Circulation matters, but the injury that actually sends people to physiotherapists is nerve damage. Nerves run close to the surface at several points on the body, and sustained or sliding pressure on them can cause numbness, weakness or loss of function that takes weeks or months to recover from. In rare cases it does not fully recover.

The most commonly injured nerve is the radial nerve, which runs around the upper arm. Pressure from a wrap placed on the outer upper arm, especially in box ties where the arms are behind the back, can damage it quickly. The result is often "wrist drop": an inability to lift the hand. Other vulnerable spots include the inner elbow, the wrist, the armpit, the inner thigh near the groin, and the outer knee.

Warning signs

The person in rope needs to know these and report them immediately. The person tying needs to ask about them often.

• Tingling, pins and needles, or "electric" sensations.
• Numbness, or a patch of skin that feels different.
• Weakness or inability to move fingers, hand or foot normally.
• Sharp or shooting pain, as opposed to the dull ache of a stretch.
• Cold, pale, blue or mottled skin beyond the rope.

Numbness and weakness are nerve signs and require the rope to come off that limb straight away. Do not wait to finish the pattern. Loss of colour or coldness suggests circulation, which is less urgent but still needs attention within minutes.

A quick test for hands: ask the person to spread their fingers wide, make a tight fist, and push their wrist back against your hand. Loss of any of those is a reason to untie.

Safer practices

• Keep wraps wide and flat, and place them on muscle rather than joints or the upper arm's outer edge.
• Never leave a tied person alone, even for a moment.
• Keep safety shears or a rescue hook within reach at all times, and know where they are without looking.
• Agree a non-verbal signal, since gags, position and headspace can all interfere with speech.
• Suspension is a separate discipline with far higher risks, including falls and sudden nerve compression. Do not attempt it without extensive floor experience and hands-on training.

If something goes wrong

Cut the rope. Rope is cheap; nerves are not. Cutting is never the wrong call when someone reports numbness, weakness, or distress you cannot resolve in seconds.

If numbness or weakness persists more than a few minutes after release, see a doctor. Tell them what happened; nerve injuries are treated the same regardless of cause, and early assessment improves recovery.