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The erector spinae (/ ɪ ˈ r ɛ k t ər ˈ s p aɪ n i / irr-EK-tər SPY-nee) [1] or spinal erectors is a set of muscles that straighten and rotate the back.The spinal erectors work together with the glutes (gluteus maximus, gluteus medius and gluteus minimus) to maintain stable posture standing or sitting.
An arrow or spear-straightener, with the shaft to be straightened passing through the hole [4] A spear thrower [4] A symbol of fertility, with the long handle as a male phallic symbol, and the hole as representing the vagina [4] [7] A dress fastener [7] A calendar used by midwives [8] A tool for smoothing and shaping leather thongs. [9]
Extension usually results in straightening of the bones or body surfaces involved. For example, extension is produced by extending the flexed (bent) elbow. Straightening of the arm would require extension at the elbow joint. If the head is tilted all the way back, the neck is said to be extended.
Keep your shoulders back, then squeeze your glutes and your core as you stand up straight, tuck your pelvis, and lift the weight. Stand tall to get a full lockout. 4.
Chest stretch. Stand tall straight with your feet hips-width apart and place your hands behind your back, interlocking your fingers. Straighten your arms down toward the ground and try to bring ...
The upper back includes multiple muscles: latissimus dorsi (lats), levator scapulae (shoulder blade), rhomboids (muscles that pull the scapula inward toward the spine), and the trapezius (traps ...
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