Why is water support mentioned as helpful for a victim with a spinal injury?

Water support is recognized as beneficial for a victim with a spinal injury primarily because it may prevent further injury while waiting for help. When a person has a spinal injury, any movement can potentially exacerbate the injury or cause additional damage. Being in the water, particularly if it's deep enough to provide buoyancy, can stabilize the victim by suspending them and minimizing movement of the spine. This reduces the risk of further injury until professional medical assistance arrives.

It’s essential to maintain the integrity of the spine and limit movement, which is why water support is favored in emergencies involving spinal injuries. Other aspects like keeping the victim dry, providing warmth, or allowing for easier movement are not the primary reasons why water support is advisable in these situations.