The IST Complex & Stabilization of the Spine

The video explains the IST complex, which includes the interspinous ligament, supraspinous ligament, and thoracolumbar fascia, and its role in stabilizing the spine during heavy lifting. It highlights the importance of the Valsalva maneuver and the involvement of muscles like the transverse abdominis and multifidus. The video also discusses how these components prevent spinal cord compression by maintaining the vertebral canal's diameter.

What does the 'T' in the IST complex stand for?

• Tendon

• Thoracic vertebrae

• Thoracolumbar fascia

• Transverse process

Why is it important to maintain a flat back during a deadlift?

• To increase muscle mass

• To prevent injury to deep back muscles

• To lift more weight

• To improve cardiovascular health

What is the primary purpose of the Valsalva maneuver during heavy lifting?

• To stabilize the spine

• To improve flexibility

• To increase heart rate

• To enhance muscle growth

Which muscle is most important in the IST complex for stabilizing the spine?

• Pectoralis major

• Transverse abdominis

• Latissimus dorsi

• Rectus abdominis

What is the function of the thoracolumbar fascia in the IST complex?

• To connect the ribs

• To provide a posterior pull on the spine

• To support the abdominal organs

• To stabilize the shoulder

How does the transverse abdominis contribute to spinal stability?

• By extending the spine

• By rotating the torso

• By compressing the abdominal viscera

• By flexing the spine

What role does the multifidus play in the IST complex?

• It stabilizes the shoulder

• It pushes the thoracolumbar fascia posteriorly

• It flexes the spine

• It rotates the spine

Why is it important to prevent the ligamentum flavum from buckling into the vertebral canal?

• To prevent spinal cord compression

• To enhance muscle growth

• To improve flexibility

• To increase heart rate

Which ligament connects the tips of each spinous process?

• Thoracolumbar fascia

• Ligamentum flavum

• Supraspinous ligament

• Interspinous ligament

What is the main benefit of the IST complex during heavy lifting?

• Increased muscle mass

• Improved flexibility

• Spinal stability and protection

• Enhanced cardiovascular health