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Swayback -- aka swayback posture -- is one of several types of posture ... Also, maintaining a strong core is vital to a healthy upright posture.
Several different muscles are used for maintaining upright posture. Muscles in the shoulder area play a big part as well as spinal muscles.
upright posture...large brains
No. Trout do not stand upright.
no
Neanderthals are depicted with a stooped or slouched posture based on their skeletal remains. This posture has been attributed to a combination of their physical build, lifestyle, and environment, but may not accurately reflect their actual posture when they were alive.
No
The strengthening of the SPINE makes it straight so that the toddler's posture is more upright.
Bipedal locomotion, Upright posture
Upright Posture
an upright posture
well to awnser your question your stomach has alot to do with your upright posture and some of your spinel erectors play a role in this as well i hope this helps you...