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2. I'm A Trainer, And These Are 5 Weight Machines You Should ...

   www.aol.com/im-trainer-5-weight-machines...

   Even seasoned lifters can benefit from machines, especially for hypertrophy (that is, muscle growth) or correcting muscular imbalances. “My left quad is a little weaker than my right due to an ...

3. Spinal posture - Wikipedia

   en.wikipedia.org/wiki/Spinal_posture

   Spinal posture is the position of the spine in the human body. It is debated what the optimal spinal posture is, [ 1 ] and whether poor spinal posture causes lower back pain . [ 2 ] Good spinal posture may help develop balance, strength and flexibility .

4. Stretch reflex - Wikipedia

   en.wikipedia.org/wiki/Stretch_reflex

   The stretch reflex (myotatic reflex), or more accurately "muscle stretch reflex", is a muscle contraction in response to stretching a muscle. The function of the reflex is generally thought to be maintaining the muscle at a constant length but the response is often coordinated across multiple muscles and even joints. [ 1 ]

5. Should you 'fix' your posture? Why experts say always sitting ...

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   News. Science & Tech

6. Righting reflex - Wikipedia

   en.wikipedia.org/wiki/Righting_reflex

   The cerebellum is also active at this time for processing of what is called an efference copy, which compares expectations of the body's posture with how it is oriented at the time. The difference between expected posture and actual posture is corrected for via motorneurons in the spinal cord, which control muscle movements for righting the ...

7. Ergonomic hazard - Wikipedia

   en.wikipedia.org/wiki/Ergonomic_hazard

   Bending or twisting the torso while lifting heavy objects: This can place excessive stress on the back muscles and spine. Sitting with a hunched back: This posture can strain the neck, shoulders, and back muscles. Reaching overhead or out to the side for extended periods: This can lead to shoulder and neck pain.

8. Erector spinae muscles - Wikipedia

   en.wikipedia.org/wiki/Erector_spinae_muscles

   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.

9. Gait (human) - Wikipedia

   en.wikipedia.org/wiki/Gait_(human)

   A stretch reflex occurs when a muscle is stretched and then contracts protectively while opposing muscle groups relax. An example of this during gait occurs when the weight-bearing leg nears the end of the stance phase. At this point the hip extends and the hip flexors are elongated.