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InsightHorizon Digest

What is lateral trunk flexion

Author

James Bradley

Updated on April 16, 2026

Movement of the trunk to the left or right, which involves movement of the shoulder towards the hip on either side. The movement is brought about by the action on one side of the body of the external and internal oblique muscles, and the quadratus lumborum.

What is trunk flexion?

Trunk flexion was the result of a simultaneous forward pelvic tilt and flexion of the spine. For trunk movements up to 550, spine flexion dominated the movement, whereas for larger movements a major part of the amplitude was caused by pelvic tilt.

What causes lateral flexion of the spine?

All trunk flexors and extensors can produce lateral flexion when acting unilaterally. The major muscles involved are the rectus abdominis, external and internal obliques, erector spinae, semispinalis thoracis, latissimus dorsi, deep posterior spinal muscles, quadratus lumborum, and psoas.

What muscles laterally flex the trunk?

The primary muscles involved in lateral flexion of the torso are the internal and external obliques, the quadratus lumborum and the erector spinae. Other muscles — including the rectus abdominis, iliopsoas and semispinalis — assist with the movement.

What joint does lateral flexion?

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What is lateral to trunk?

Medial/Lateral–Equivalent to towards the middle or towards the edge. Used with respect to the midline of the trunk of a body in anatomical position. A structure that medial to another is closer to the midline of the body’s trunk. A feature that is lateral to another is farther away from the midline of the trunk.

What does laterally flex mean?

Movement of a body part to the side is called lateral flexion. This type of movement is commonly associated with the neck and spine. For example, when you move your head toward one of your shoulders or bend your body sideways, you’re performing a lateral flexion.

How can I improve my trunk flexion?

If you do require lumbar flexion to treat your low back pain, there is a safe and effective way to progress your bending exercises. Following the correct progression ensures that the forces you place on your back are safe and effective for your condition.

What is trunk anatomy?

Listen to pronunciation. The main part of the body that contains the chest, abdomen, pelvis, and back. Most of the body’s organs and the backbone are found in the trunk. Also called torso.

Is flexion bad for herniated disc?

Spinal Flexion and Herniated Disc Risk Too much spinal flexion, or spinal flexion that is loaded—either because you’re carrying something with a substantial amount of weight, or you’re twisting your spine as you bend—may negatively affect your intervertebral discs. It may even cause a herniated disc injury.

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How can I improve my cervical lateral flexion?

  1. Interlace your fingers at the base of your spine.
  2. Lower your left shoulder and tilt your head to the right as far as you can.
  3. Hold this position for 15–30 seconds.
  4. Return to the starting position.
  5. Perform on the opposite side.
  6. Do each side 3 times.

What is the difference between this term and lateral flexion?

For the vertebral column, flexion (anterior flexion) is an anterior (forward) bending of the neck or body, while extension involves a posterior-directed motion, such as straightening from a flexed position or bending backward. Lateral flexion is the bending of the neck or body toward the right or left side.

What is lateral flexion in fast bowling?

Lateral flexion happens at the point a bowler releases the ball. … The bowler’s head is over to the off side. The green line is the ideal position of the back. So the head is over the front foot when the ball is released.

What muscle flexes and laterally flexes the trunk?

Quadratus lumborum is involved in extending the trunk and flexing it laterally to the ipsilateral side.

What is plantar flexion?

Plantar flexion is the movement that allows you to press the gas pedal of your car. It also allows ballet dancers to stand on their toes. The term plantar flexion refers to the movement of the foot in a downward motion away from the body. … The ankle joint, which is actually two joints, makes plantar flexion possible.

What does flexion mean?

1 : a bending movement around a joint in a limb (as the knee or elbow) that decreases the angle between the bones of the limb at the joint — compare extension sense 2. 2 : a forward raising of the arm or leg by a movement at the shoulder or hip joint.

What is posterior trunk?

The posterior trunk roughly encompasses the upper back from the shoulders to the lumbar area above the iliac crests. Long-term outcomes in the treatment of defects of the spine and bony thorax have been proved superior if flaps were used.

Where is trunk located?

Trunk or torso is an anatomical term for the central part of the human body from which extend the neck and limbs. The trunk includes the thorax and abdomen.

What is anterior trunk?

Anterior Muscles. The anterior muscles of the torso (trunk) are those on the front of the body, including the muscles of the chest, abdomen, and pelvis.

What is Williams flexion used for?

Williams back exercises, also known as Williams flexion or lumbar exercises, are exercises for people with low back pain. Williams back exercises are recommended for people with low back pain to help improve lumbar flexion and strengthen the gluteal and abdominal muscles.

Is walking good for spinal stenosis?

Walking is a suitable exercise for you if you have spinal stenosis. It is low-impact, and you can easily vary the pace as needed. Consider a daily walk (perhaps on your lunch break or as soon as you get home).

Which is worse bulging or herniated disk?

Herniated discs are considered more severe than bulging discs because they put significant pressure on nearby nerves, which can cause intense pain, inflammation and difficulties with movement.

Is flexion bad for back?

Flexion is a functional and fundamental movement of any body part including the spine. It is NOT dangerous to flex the lumbar spine, as it is not dangerous to flex the hips, the elbows or the fingers. Sure it is true that people often injure themselves while bending or lifting.

Is walking good for a herniated disc?

Walking is an excellent choice for patients with herniated discs, as it stimulates blood flow and oxygen to the cells. It also helps keep your discs hydrated, which is important for healing. Other low-impact aerobic activities to try are swimming and cycling.

What does it mean if you can't touch your chin to your chest?

Meningitis is a serious viral or bacterial illness that causes inflammation around the tissues of the brain and spinal cord. Symptoms come on quickly and include severe headache, stiff neck, fever, and sometimes vomiting. The neck stiffness makes it hard or impossible to touch the chin to the chest.

Why do I keep flexing my neck muscles?

Cervical dystonia, also called spasmodic torticollis, is a painful condition in which your neck muscles contract involuntarily, causing your head to twist or turn to one side. Cervical dystonia can also cause your head to uncontrollably tilt forward or backward.

Why are full neck rotations bad?

However, research shows that the combination of extending the head backward and rotating it puts undue stress on the cervical spine. Compared to other neck movements, neck circles could also cause more compression of the arteries that take blood to the brain.

What is difference between flexion and extension?

Flexion and extension are two anatomical terms used to describe angular motion. … The main difference between flexion and extension is that flexion is the action that brings the two bones together, decreasing the angle between the bones whereas extension is the action that increases the angle between the two bones.