Stabilization - Done Flashcards

1
Q

Controlled mobility is more than just what?

A

Strength of superficial and big muscles

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2
Q

What are the four variables of stabilization?

A
  1. Joint Integrity (ex: cartilage)
  2. Passive Stiffness (ex: ligament)
  3. Neural Input
  4. Muscle Function
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3
Q

What are the characteristics of a local muscle?

A
  • Closer to the axis of motion
  • Often deeper
  • Stabilization > Rotary forces
  • Postural
  • Aerobic > Anaerobic
  • More often Type 1 fibers
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4
Q

What are the characteristics of a global muscle?

A
  • Further away from the axis of motion
  • Often superficial
  • Rotatory > stabilization forces
  • Spurt muscles
  • Anaerobic > Aerobic
  • More often type 2 fibers
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5
Q

What are examples of local muscles in the thoracolumbosacral area?

A
  • Psoas: frontal plane stabilizer
  • Quadratus Lumborum: frontal plane stabilizer
  • Pelvic Floor and Transverse Abdominus: increases contraction of multifidus
  • Multifidi/ Rotatores: if smaller there is a higher injury rate and LBP
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6
Q

What are examples of global muscles in the thoracolumbosacral area?

A

More superficial muscles

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7
Q

What happens to local and global muscles in our patients and why?

A
  • Why: pain is the big thing… longer it has been there the more issues we are going to have (most likely)
  • Pain, swelling, joint laxity (will inhibit muscles) and disuse
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8
Q

Pain, swelling, joint laxity and disuse lead to what?

A
  • Decreased and delayed motor performance and control of local muscles (ex: transverse abdominus, multifidi, etc.)
  • Inhibition preferential to type 1 muscles
  • Local muscle atrophy, specifically multifidus, and strength declines along with loss of every other muscle function
  • Increased stress on non-contractile structures (ex: ligament, cartilage, capsule… muscle is not doing its job)
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9
Q

Pain, swelling, joint laxity and disuse can also cause?

A
  • Increased and inefficient motor activity of global muscles (ex: external abdominal obliques/ erector spinae, etc)
  • Atrophy leads to fatty infiltration, >50% of muscles cross-sectional area is fat in local and global muscles in those > 60 years of age
  • Fiber transformation: type 1 change to 2
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10
Q

When fibers transform from type 1 to type 2 what does this mean?

A

They lose their endurance and stabilizing functions

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11
Q

Does muscle function normalize automatically once symptoms are improved? (yes or no)

A

No - Normal muscle activity does not return spontaneously just because the pain is gone

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12
Q

What percentage of muscle activation is sufficient to keep stability and is suitable to improve muscular endurance so it doesn’t take a lot for improvement?

A

30%

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