Suspension trauma

Loss of consciousness or injury from hanging motionless in a harness after a fall is arrested.

Also known as: Orthostatic intolerance, Harness hang syndrome, Fall arrest

How to control suspension trauma

Avoid relying on fall arrest by using fall prevention, such as guardrails or elevated work platforms, wherever possible.
Prepare a rescue plan before work starts that can reach a suspended worker quickly without relying on emergency services.
Keep rescue equipment on site, and make sure workers are trained and practised in using it.
Never let anyone work alone in a fall-arrest harness; someone must be able to raise the alarm and start rescue.
Fit harnesses correctly and use suspension relief straps so a suspended worker can stand in them and move their legs.
Get medical assessment for anyone who has been suspended in a harness, even if they seem well.

Typical controls, most effective first. Your SWMS sets the controls for your own job and site.