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  2. Standing - Wikipedia

    en.wikipedia.org/wiki/Standing

    Standing, also referred to as orthostasis, is a position in which the body is held in an upright (orthostatic) position and supported only by the feet. Although seemingly static, the body rocks slightly back and forth from the ankle in the sagittal plane , which bisects the body into right and left sides.

  3. Human skeletal changes due to bipedalism - Wikipedia

    en.wikipedia.org/wiki/Human_skeletal_changes_due...

    Ape skeletons. A display at the Museum of Zoology, University of Cambridge.From left to right: Bornean orangutan, two western gorillas, chimpanzee, human. The evolution of human bipedalism, which began in primates approximately four million years ago, [1] or as early as seven million years ago with Sahelanthropus, [2] [3] or approximately twelve million years ago with Danuvius guggenmosi, has ...

  4. List of human positions - Wikipedia

    en.wikipedia.org/wiki/List_of_human_positions

    Standing with folded arms; Standing contrapposto, with most of the weight on one foot so that its shoulders and arms twist off-axis from the hips and legs in the axial plane; Standing at attention, upright with an assertive and correct posture: "chin up, chest out, shoulders back, stomach in", arms at the side, heels together, toes apart

  5. Bipedalism - Wikipedia

    en.wikipedia.org/wiki/Bipedalism

    Most bipedal animals move with their backs close to horizontal, using a long tail to balance the weight of their bodies. The primate version of bipedalism is unusual because the back is close to upright (completely upright in humans), and the tail may be absent entirely. Many primates can stand upright on their hind legs without any support.

  6. The Source (Ingres) - Wikipedia

    en.wikipedia.org/wiki/The_Source_(Ingres)

    The painting depicts a nude woman standing upright between an opening in the rocks and holding in her hands a pitcher, from which water flows.She thus represents a water source or spring, for which source is the normal French word, and which, in classical literature, is sacred to the Muses and a source of poetic inspiration. [7]

  7. Stretch reflex - Wikipedia

    en.wikipedia.org/wiki/Stretch_reflex

    As an example of a spinal reflex, it results in a fast response that involves an afferent signal into the spinal cord and an efferent signal out to the muscle. The stretch reflex can be a monosynaptic reflex which provides automatic regulation of skeletal muscle length, whereby the signal entering the spinal cord arises from a change in muscle ...

  8. At attention - Wikipedia

    en.wikipedia.org/wiki/At_attention

    The position of at attention, or standing at attention, is a military posture which involves the following general postures: [1]. Standing upright with an assertive and correct posture: famously "chin up, chest out, shoulders back, stomach in".

  9. Ivy League nude posture photos - Wikipedia

    en.wikipedia.org/wiki/Ivy_League_nude_posture_photos

    The Ivy League nude posture photos were taken in the 1940s through the 1970s of all incoming freshmen at Harvard, Yale, Princeton, the University of Pennsylvania (which are members of the Ivy League) and Seven Sisters colleges (as well as Swarthmore), ostensibly to gauge the rate and severity of rickets, scoliosis, and lordosis in the population.

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