04-BIO-B10 Analytical Biochemistry Exam A
Question 1. Which gait deviation is commonly observed in individuals with stroke exhibiting foot drop?
A) Circumduction
B) Shuffled gait
C) Uneven step length
D) Drop foot gait pattern
Answer: D
Explanation: Foot drop results in difficulty lifting the front part of the foot, leading to a characteristic gait
pattern known as drop foot gait, often causing toe dragging during swing phase.
Question 2. What is the primary advantage of using 3D motion capture systems in gait analysis?
A) Measuring energy expenditure directly
B) Quantifying joint angles and movement patterns precisely
C) Assessing muscle strength only
D) Replacing clinical observation entirely
Answer: B
Explanation: 3D motion capture systems provide detailed, quantitative data on joint kinematics and
movement patterns, aiding in precise gait analysis.
Question 3. Which motor control principle emphasizes the role of feedback and feedforward
mechanisms in movement regulation?
A) Hierarchical control
B) Distributed control
C) Motor programs theory
D) Sensory integration theory
Answer: A
Explanation: Hierarchical control involves top-down regulation of movement, integrating feedback and
feedforward mechanisms for precise motor execution.
Question 4. According to Schmidt's schema theory, motor learning involves the development of:
A) Fixed movement patterns
, 04-BIO-B10 Analytical Biochemistry Exam A
B) Generalized motor programs and rules for variability
C) Reflex pathways
D) Sensory thresholds
Answer: B
Explanation: Schmidt's schema theory highlights that motor learning involves developing generalized
motor programs and rules that allow adaptation to different contexts.
Question 5. Neural plasticity is important in rehabilitation because it enables:
A) Permanent loss of neural connections
B) Reorganization and formation of new neural pathways after injury
C) Immediate recovery without training
D) Decreased responsiveness to therapy
Answer: B
Explanation: Neural plasticity refers to the brain's ability to reorganize and form new neural
connections, which is essential for functional recovery following injury.
Question 6. Which sensory modality plays a crucial role in postural control by providing information
about the body's position relative to gravity?
A) Visual system
B) Vestibular system
C) Somatosensory system
D) Auditory system
Answer: B
Explanation: The vestibular system provides critical information about head position and movement
relative to gravity, essential for maintaining balance.
Question 7. In gait analysis, kinetic data primarily refers to measurements of:
A) Joint angles during movement
B) Forces involved in movement, such as ground reaction forces
C) Muscle activation patterns
, 04-BIO-B10 Analytical Biochemistry Exam A
D) Limb segment velocities
Answer: B
Explanation: Kinetic data involve forces and moments, such as ground reaction forces, which are
essential for understanding the forces involved in gait.
Question 8. Which type of prosthetic knee control system is most effective for adapting to varying
terrain and walking speeds?
A) Mechanical knee linkage
B) Microprocessor-controlled knee with sensors and control algorithms
C) Passive elastic knee joint
D) Fixed hinge joint
Answer: B
Explanation: Microprocessor-controlled knees use sensors and algorithms to adapt to different walking
conditions, providing more natural gait and safety.
Question 9. What is an advantage of osseointegration in lower limb prosthetics?
A) Improved socket fit and stability
B) Reduced surgical risks
C) Elimination of the need for surgical intervention
D) Decreased load transfer to the residual limb
Answer: A
Explanation: Osseointegration provides a direct skeletal attachment, improving socket fit, stability, and
comfort compared to traditional socket prostheses.
Question 10. Targeted Muscle Reinnervation (TMR) is primarily used to:
A) Improve cosmetic appearance of prostheses
B) Enhance myoelectric control signals by rerouting nerves to remaining muscles
C) Reduce muscle atrophy in the residual limb
D) Prevent phantom limb pain
Answer: B
, 04-BIO-B10 Analytical Biochemistry Exam A
Explanation: TMR involves rerouting residual nerves to alternative muscles, generating more intuitive
myoelectric signals for prosthetic control.
Question 11. Which orthotic design is typically used to manage scoliosis with a focus on correcting the
sagittal plane deformity?
A) Boston brace
B) Rigo-Cheneau brace
C) Milwaukee brace
D) Charleston bending brace
Answer: B
Explanation: The Rigo-Cheneau brace is an advanced design that provides three-dimensional correction,
including sagittal plane deformities in scoliosis.
Question 12. Dynamic seating systems are designed primarily to:
A) Provide fixed support for posture
B) Adjust automatically to changing postural needs and pressure distribution
C) Replace wheelchair mobility functions
D) Prevent all postural deviations permanently
Answer: B
Explanation: Dynamic seating allows for adjustments that accommodate postural changes, reduce
pressure points, and improve comfort and function.
Question 13. Which technology is most suitable for environmental control in accessible homes for
individuals with high-level spinal cord injury?
A) Voice-controlled AI assistants
B) Manual switches only
C) Traditional remote controls
D) Mechanical door openers
Answer: A
Explanation: Voice-controlled AI assistants enable users with limited mobility to operate various home
systems hands-free, enhancing independence.
Question 1. Which gait deviation is commonly observed in individuals with stroke exhibiting foot drop?
A) Circumduction
B) Shuffled gait
C) Uneven step length
D) Drop foot gait pattern
Answer: D
Explanation: Foot drop results in difficulty lifting the front part of the foot, leading to a characteristic gait
pattern known as drop foot gait, often causing toe dragging during swing phase.
Question 2. What is the primary advantage of using 3D motion capture systems in gait analysis?
A) Measuring energy expenditure directly
B) Quantifying joint angles and movement patterns precisely
C) Assessing muscle strength only
D) Replacing clinical observation entirely
Answer: B
Explanation: 3D motion capture systems provide detailed, quantitative data on joint kinematics and
movement patterns, aiding in precise gait analysis.
Question 3. Which motor control principle emphasizes the role of feedback and feedforward
mechanisms in movement regulation?
A) Hierarchical control
B) Distributed control
C) Motor programs theory
D) Sensory integration theory
Answer: A
Explanation: Hierarchical control involves top-down regulation of movement, integrating feedback and
feedforward mechanisms for precise motor execution.
Question 4. According to Schmidt's schema theory, motor learning involves the development of:
A) Fixed movement patterns
, 04-BIO-B10 Analytical Biochemistry Exam A
B) Generalized motor programs and rules for variability
C) Reflex pathways
D) Sensory thresholds
Answer: B
Explanation: Schmidt's schema theory highlights that motor learning involves developing generalized
motor programs and rules that allow adaptation to different contexts.
Question 5. Neural plasticity is important in rehabilitation because it enables:
A) Permanent loss of neural connections
B) Reorganization and formation of new neural pathways after injury
C) Immediate recovery without training
D) Decreased responsiveness to therapy
Answer: B
Explanation: Neural plasticity refers to the brain's ability to reorganize and form new neural
connections, which is essential for functional recovery following injury.
Question 6. Which sensory modality plays a crucial role in postural control by providing information
about the body's position relative to gravity?
A) Visual system
B) Vestibular system
C) Somatosensory system
D) Auditory system
Answer: B
Explanation: The vestibular system provides critical information about head position and movement
relative to gravity, essential for maintaining balance.
Question 7. In gait analysis, kinetic data primarily refers to measurements of:
A) Joint angles during movement
B) Forces involved in movement, such as ground reaction forces
C) Muscle activation patterns
, 04-BIO-B10 Analytical Biochemistry Exam A
D) Limb segment velocities
Answer: B
Explanation: Kinetic data involve forces and moments, such as ground reaction forces, which are
essential for understanding the forces involved in gait.
Question 8. Which type of prosthetic knee control system is most effective for adapting to varying
terrain and walking speeds?
A) Mechanical knee linkage
B) Microprocessor-controlled knee with sensors and control algorithms
C) Passive elastic knee joint
D) Fixed hinge joint
Answer: B
Explanation: Microprocessor-controlled knees use sensors and algorithms to adapt to different walking
conditions, providing more natural gait and safety.
Question 9. What is an advantage of osseointegration in lower limb prosthetics?
A) Improved socket fit and stability
B) Reduced surgical risks
C) Elimination of the need for surgical intervention
D) Decreased load transfer to the residual limb
Answer: A
Explanation: Osseointegration provides a direct skeletal attachment, improving socket fit, stability, and
comfort compared to traditional socket prostheses.
Question 10. Targeted Muscle Reinnervation (TMR) is primarily used to:
A) Improve cosmetic appearance of prostheses
B) Enhance myoelectric control signals by rerouting nerves to remaining muscles
C) Reduce muscle atrophy in the residual limb
D) Prevent phantom limb pain
Answer: B
, 04-BIO-B10 Analytical Biochemistry Exam A
Explanation: TMR involves rerouting residual nerves to alternative muscles, generating more intuitive
myoelectric signals for prosthetic control.
Question 11. Which orthotic design is typically used to manage scoliosis with a focus on correcting the
sagittal plane deformity?
A) Boston brace
B) Rigo-Cheneau brace
C) Milwaukee brace
D) Charleston bending brace
Answer: B
Explanation: The Rigo-Cheneau brace is an advanced design that provides three-dimensional correction,
including sagittal plane deformities in scoliosis.
Question 12. Dynamic seating systems are designed primarily to:
A) Provide fixed support for posture
B) Adjust automatically to changing postural needs and pressure distribution
C) Replace wheelchair mobility functions
D) Prevent all postural deviations permanently
Answer: B
Explanation: Dynamic seating allows for adjustments that accommodate postural changes, reduce
pressure points, and improve comfort and function.
Question 13. Which technology is most suitable for environmental control in accessible homes for
individuals with high-level spinal cord injury?
A) Voice-controlled AI assistants
B) Manual switches only
C) Traditional remote controls
D) Mechanical door openers
Answer: A
Explanation: Voice-controlled AI assistants enable users with limited mobility to operate various home
systems hands-free, enhancing independence.
