Sam couldn't move. Aside from the fact all the air had been driven from his body with the force that the statue had hit him, the thing had now frozen because Dean was looking at it, effectively pinning Sam between it and the wall. He wasn't quite at the point of being crushed but he couldn't breathe too deeply without feeling a tightnes around his chest.
"M'okay." He eventually managed to say to his brother once he had gleaned back enough breath to speak. "Little help'd be good though." He tried to make it sound lighthearted but the still laboured breathing sort of hampered the effect.