His stiffness hampered the conversation.
In spite of the lateness of the hour, he turned and stretched the stiffness from his limbs.
Casting bronze over iron rods was also done, to gain more stiffness for thin parts.
Finally his big hands left her waist and moved to her shoulders, working out the stiffness in them, and then on to the back of her neck.
Dean paid little attention as his mind remained focused on his chore ahead as he tried to put aside the stiffness in his injured leg.
To obtain greater stiffness various plans have been adopted.