This is LoRA, which allows the use of crutches to assist in walking even with a broken or sprained leg.
The trigger word is crutch.
The recommended weight is around 0.8.
The trigger word alone can be used, but since the person is standing still, adding “walking” or “bandaged leg” will give the impression that the person is walking.
The Illustrious version is based on Illustrious-XL 0.1, so there is a possibility that other Illustrious merge models and Noob merge models can be used, but this has not been verified.