CBP Spinal Physics and Mechanics Flashcards
6 cards from real CBP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CBP Spinal Physics and Mechanics flashcards as text
According to CBP research, by how much does the effective weight of the head increase for every inch of anterior head translation?
Answer: 10 lbs per inch
CBP and related biomechanical studies indicate that every inch of forward head posture adds approximately 10 lbs of effective load on the cervical spine due to the increased moment arm.
Which term describes the coupling motion pattern observed in the lumbar spine during lateral flexion?
Answer: Ipsilateral axial rotation with lateral flexion
In the lumbar spine, lateral flexion is coupled with ipsilateral axial rotation (spinous processes rotate toward the convexity), a pattern important in CBP movement analysis.
In CBP, what is the purpose of calculating the 'posterior body line' on a lateral cervical radiograph?
Answer: To establish the ideal lordosis arc and quantify deviation of each vertebra from that arc
The posterior body line connects the posterior vertebral body corners to create a reference arc, allowing precise quantification of each segment's deviation from the ideal lordotic curve.
What is the clinical significance of a 'double crush phenomenon' in CBP spinal mechanics?
Answer: Simultaneous compression of a nerve at two separate anatomical locations reducing its tolerance to injury
The double crush phenomenon describes how nerve compression at one site (e.g., the spine) sensitizes the nerve, making a distal compression (e.g., carpal tunnel) more symptomatic than either alone.
Which type of spinal loading is most protective against disc degeneration according to CBP biophysical principles?
Answer: Cyclic, well-distributed axial loading within a neutral spine posture
CBP emphasizes that cyclic axial loading within a neutral, well-aligned spine promotes disc imbibition and nutrient exchange, which is protective against degeneration.
In CBP, 'Wolff's Law' is referenced primarily to explain which clinical observation?
Answer: Bone remodels in response to the mechanical stresses placed upon it, justifying structural spinal correction
CBP cites Wolff's Law to support long-term spinal correction: bone remodeling in response to altered mechanical loading means correcting spinal alignment can induce adaptive skeletal changes.