Years ago the clothes had a beautiful line, and the women had nice straight posture.

The bilateral triceps surae muscle, made up of the gastrocnemius and the soleus, is essential to maintain a straight posture while standing.

With hands placed on her knees and her feet close together, she has a straight posture that seems genteelly demure, like that of a well-brought-up schoolgirl.

Her straight posture and the vigor of her step told Alemar all he needed to know.

I didn't have very straight posture at the piano, so she made me tie my legs together with my Young Pioneers scarf.

Jessica's straight posture.

Involuntarily, he assumed a respectfully straight posture, halted in his protest as if by a bolt of lightning.

His straight posture was gone, the high angle of the chin vanished, and he slumped.

Inviting him to sit, she admired his squared shoulders and straight posture.

Sitting primarily relates to a straight posture.