Synonyms for «tight arch»

Synonyms for individual words can be found below.

With the bar across the back of your shoulders and a tight arch in your lower back, push your knees and butt out and begin descending. (fitnessandpower.com)
Maintain a tight arch in the lower back. (fitnessandpower.com)
You must learn to develop the strength to keep a tight arch in the lower back. (muscleandbrawn.com)
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