18 Questions
What is a possible consequence of sitting for 8 hours a day?
Decreased lumbar lordosis
How can the morphology of the sacrum be described depending on the viewpoint?
Acting as a keystone at the inferior view
Why is it important to identify mechanical loads on the cervical spine?
To design ergonomic workplaces
Which muscles provide attachment points for regulating the skull's movement?
Neck muscles
What could lead to nerve root irritation in the cervical spine region?
Degeneration of intervertebral disks
What is the role of the pelvic bones in supporting the pelvis?
To prevent pelvic collapse under weight
What is the impact of standing posture on the tension of the sacroiliac ligaments?
Increase the tension
How does forward tilting of the pelvis affect the trunk and head posture?
Causes both to tilt forward
What corrective action is taken by the body to compensate for anterior pelvic tilt?
Hyperextend the lumbar spine
What is the result of the contraction of the hip extensors and abdominals on the pelvic position?
Posterior tilting
Which posture is accompanied by excessive lumbar curvature (hyperlordosis)?
Anterior pelvic tilt
What does diminished lumbar lordosis typically accompany?
Posterior pelvic tilt
What occurs when the lumbar spine flexes to keep the trunk and head erect?
The front part of the intervertebral disks is compressed and the rear part is stretched.
Which of the following is a result of reduced blood flow from the legs to the heart?
Decreased blood pressure
What is the recommended seat tilt for chairs to promote good posture?
Between 50° backward and 250° forward
What is the term for the maximum compressive load a specified motion segment can withstand without failure?
Spinal Compressive Tolerance Limit (SCTL)
What is the consequence of sitting in a position that causes the pelvis to tilt backward?
Reduced lumbar lordosis
What is the recommended knee position for seated operators operating foot pedals?
Knees in partially flexed position
Learn about how standing posture can increase the load on the pelvis and the tension in the sacroiliac ligaments, leading to potential pain. Understand how displacement of the Sacrum can cause soft tissues to be pinched. Explore the relationship between the lumbar spine, sacral angle, and pelvis tilt.
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