Under the constraining power of the Roman Empire the older city states were reduced to the position of municipalities, and their financial administration became dependent on the control of the Emperor - as is abundantly illustrated in the correspondence of Pliny and Trajan.
But even his eloquence was constraining and constructive - a personal call for immediate and universal co-operation; and that personal influence survives to this day in the institutions of his people, and perhaps still more in their character.
These results provide constraining data for models of inflectional morphology.
Guests must be at least 54 inches tall in order to ride, and the over-the-shoulder safety harnesses may be constraining and uncomfortable for guests with wide shoulders or thick torsos.
Some doctors refer to the girdles as constraining devices so as not to upset their patients further.