"stiff position" is a correct and usable phrase in written English.
It is typically used to describe someone who is standing or sitting in a very rigid and uncomfortable way. Example: The teacher scolded the students for their lack of attention, telling them to sit up straight and stop slouching in their desks. The students immediately straightened their backs and assumed a stiff position, afraid of receiving another reprimand.
The drooping head, and the peculiar stiff position of the legs made him look more like a mule," Sophie Stathie, a curator at the museum, said.
In a room with a seemingly new carpet, its floral pattern echoed on the spotless wallpaper, a woman lies in an unnaturally stiff position on a grimy studio couch.
SKETCHBOOK showing six drawings of Republican Presidential candidate Bob Dole, with hands in exactly the same stiff position, wearing nearly-identical suits and ties, holding a pen in one hand and either a golf club, oar, hamburger flipper, cowboy hat, bowling ball, or drink cooler in the other... Golf Togs: Got time now to play golf.
By Bruce McCall The New Yorker, June 3 , 1996P. 69 SKETCHBOOK showing six drawings of Republican Presidential candidate Bob Dole, with hands in exactly the same stiff position, wearing nearly-identical suits and ties, holding a pen in one hand and either a golf club, oar, hamburger flipper, cowboy hat, bowling ball, or drink cooler in the other... Golf Togs: Got time now to play golf.
India seems to be climbing down from a stiff position that not an inch of its land can be given away to China to resolve the border dispute that has dogged the two Asian giants since the 1950s.
For this purpose the robot was configured as a stiff position servo and used to apply 3D, stochastic perturbations to the endpoint of the arm.
With robotic jerks, the couples froze their bodies into stiff positions, the men and women staring at each other in shock and bewilderment.
PLANKING Posing for a photograph with the body in a stiff prone position, especially in odd situations or places.
Some analysts say he was stiff in position drills at the combine, although I didn't notice that.
Polls showed most Cuban-Americans still supported the embargo and a stiff anti-Cuba position.
The ant then dies in this unusual position, stiff with postmortem lockjaw due to muscle atrophy from the fungi rapidly growing in its head.
