Yes, had to resort to this last year as some of my peekins would probably have starved themselves rather than give up sitting ::
We used a metal cage (small pet carrier) and popped it on some house bricks to get a flow of cold air underneath the hens. Obviously food and water as normal. It only took a few days. We did pop the cage outside in the day (shaded and covered in case of rain) and vrought in at night.