Biomechanics of Rehabilitation and Assistive Devices – MCQs

1. What is the main purpose of assistive devices in rehabilitation?
(A) Enhance independence and mobility
(B) Replace medication
(C) Improve nutrition
(D) Increase heart rate

2. Which of the following is a common lower-limb assistive device?
(A) Crutches
(B) Hearing aid
(C) Contact lenses
(D) Stethoscope

3. Biomechanics in rehabilitation focuses on:
(A) Restoring functional movement
(B) Increasing appetite
(C) Monitoring sleep
(D) Measuring blood pressure

4. A walker primarily increases stability by:
(A) Widening base of support
(B) Reducing muscle mass
(C) Increasing energy demand
(D) Reducing flexibility

5. Which biomechanical factor is most important in wheelchair design?
(A) Center of gravity and stability
(B) Color of the frame
(C) Cushion fabric only
(D) Cost of production

6. Orthoses are used to:
(A) Support, align, or correct deformities
(B) Increase joint laxity
(C) Replace nutrition
(D) Enhance vision

7. Prostheses are designed to:
(A) Replace missing body parts
(B) Increase muscle spasm
(C) Reduce lung capacity
(D) Block joint movement

8. Proper crutch gait reduces:
(A) Weight-bearing load on injured limb
(B) Spinal flexibility
(C) Heart rate
(D) Muscle tension

9. Which principle is key in ergonomic rehabilitation?
(A) Reducing stress on joints and tissues
(B) Increasing force on the body
(C) Enhancing fatigue
(D) Minimizing rest periods

10. Cane length should be measured from:
(A) Greater trochanter to the floor
(B) Knee joint to ankle
(C) Hip to shoulder
(D) Elbow to wrist

11. Which of the following uses biomechanics for postural correction?
(A) Spinal braces
(B) Contact lenses
(C) Hearing aids
(D) Thermometers

12. Energy expenditure is higher in:
(A) Above-knee amputees with prosthesis
(B) Below-knee amputees with prosthesis
(C) Non-amputees
(D) Healthy athletes

13. Proper shoe inserts (orthotics) correct:
(A) Foot alignment and load distribution
(B) Blood circulation only
(C) Lung function
(D) Skin elasticity

14. Biomechanical analysis in rehab helps:
(A) Reduce risk of re-injury
(B) Increase food intake
(C) Decrease sleep
(D) Enhance hearing

15. What is the main biomechanical advantage of parallel bars?
(A) Maximum support during gait training
(B) Increased heart rate
(C) Reduced lung volume
(D) Increased fatigue

16. Which material is commonly used in lightweight prostheses?
(A) Carbon fiber
(B) Lead
(C) Copper
(D) Iron

17. Which factor affects stability in prosthetic limbs?
(A) Alignment and weight distribution
(B) Color of prosthesis
(C) Cosmetic design only
(D) Price tag

18. Wheelchair propulsion requires:
(A) Shoulder and upper limb biomechanics
(B) Foot muscle strength only
(C) Head movement
(D) Neck flexibility

19. Dynamic orthoses are designed to:
(A) Allow controlled motion
(B) Completely restrict motion
(C) Increase deformity
(D) Decrease endurance

20. Biomechanical rehabilitation improves:
(A) Movement efficiency and safety
(B) Digestive function
(C) Skin color
(D) Hair growth

21. Cane should be used on the:
(A) Opposite side of the injured limb
(B) Same side as the injury
(C) Dominant hand only
(D) Either side randomly

22. Suspension systems in prosthetics help with:
(A) Holding the prosthesis in place
(B) Increasing pain
(C) Limiting mobility
(D) Increasing limb weight

23. Proper seating biomechanics in a wheelchair prevent:
(A) Pressure sores and spinal deformities
(B) Increased lung capacity
(C) Improved vision
(D) Muscle hypertrophy

24. Exoskeletons in rehabilitation provide:
(A) Powered assistance in movement
(B) Vision correction
(C) Blood pressure monitoring
(D) Skin treatment

25. A 3-point pressure system in orthoses is used for:
(A) Correcting deformities
(B) Reducing muscle size
(C) Improving lung function
(D) Enhancing digestion

26. Ergonomic chairs support:
(A) Spine alignment and posture
(B) Increased muscle spasm
(C) Reduced mobility
(D) Vision changes

27. Biomechanical gait training focuses on:
(A) Restoring normal walking patterns
(B) Improving taste
(C) Enhancing hearing
(D) Decreasing appetite

28. Wheelchair camber angle affects:
(A) Maneuverability and stability
(B) Blood circulation
(C) Lung volume
(D) Muscle contraction

29. Which device helps in dorsiflexion weakness?
(A) Ankle-foot orthosis
(B) Neck brace
(C) Elbow crutch
(D) Spinal corset

30. Prosthetic alignment errors may cause:
(A) Gait deviations and instability
(B) Increased lung capacity
(C) Better digestion
(D) Enhanced vision

31. Rehabilitation robots are used to:
(A) Assist repetitive movement training
(B) Increase injury
(C) Restrict recovery
(D) Improve hearing

32. Which crutch gait provides maximum stability?
(A) 4-point gait
(B) 3-point gait
(C) 2-point gait
(D) Swing-through gait

33. Proper hand grip biomechanics in walkers prevent:
(A) Wrist and hand strain
(B) Lung collapse
(C) Blood clotting
(D) Eye strain

34. Which device is commonly used for post-stroke rehab?
(A) Functional electrical stimulation (FES) devices
(B) Contact lenses
(C) Blood glucose monitor
(D) Stethoscope

35. Biomechanics of sit-to-stand involves:
(A) Hip, knee, and ankle extension
(B) Wrist flexion only
(C) Neck rotation
(D) Shoulder elevation

36. Which orthosis is used for scoliosis?
(A) Thoracolumbosacral orthosis (TLSO)
(B) Knee brace
(C) Ankle-foot orthosis
(D) Wrist splint

37. Shock-absorbing prosthetic feet reduce:
(A) Impact forces on joints
(B) Vision problems
(C) Heart rate
(D) Digestion time

38. Padded crutch tips reduce:
(A) Impact and improve grip on ground
(B) Muscle strength
(C) Bone density
(D) Breathing rate

39. Biomechanical efficiency in rehab devices aims at:
(A) Reducing energy expenditure during use
(B) Increasing fatigue
(C) Restricting mobility
(D) Enhancing deformities

40. Which principle ensures safety in lifting techniques?
(A) Keeping load close to body and using leg muscles
(B) Using back muscles only
(C) Bending spine excessively
(D) Holding breath while lifting

41. Gait deviation with crutches may occur due to:
(A) Improper height adjustment
(B) Balanced posture
(C) Correct muscle activation
(D) Proper weight shift

42. An ankle-foot orthosis helps primarily in:
(A) Foot drop correction
(B) Improving vision
(C) Increasing appetite
(D) Enhancing lung volume

43. The main biomechanical factor in stair climbing with prosthesis is:
(A) Knee and hip joint torque
(B) Neck rotation
(C) Shoulder abduction
(D) Finger extension

44. Proper biomechanics in seating systems prevent:
(A) Pressure ulcers and musculoskeletal issues
(B) Increased vision
(C) Lung fibrosis
(D) Skin pigmentation

45. Which device helps patients with weak grip strength?
(A) Adaptive utensils and handles
(B) Blood pressure cuff
(C) Glasses
(D) Pulse oximeter

46. Suspension sleeves in prostheses improve:
(A) Comfort and stability
(B) Appetite
(C) Vision
(D) Hearing

47. A standing frame in rehab assists with:
(A) Weight-bearing and posture support
(B) Increasing sleep
(C) Enhancing taste
(D) Reducing flexibility

48. Biomechanics in prosthetic knee design improves:
(A) Walking efficiency and stability
(B) Lung function
(C) Digestion
(D) Eye sight

49. Assistive devices reduce fall risk by:
(A) Increasing base of support
(B) Increasing instability
(C) Reducing strength
(D) Increasing fatigue

50. The ultimate goal of biomechanics in rehabilitation is:
(A) To restore safe and functional independence
(B) To replace medical treatment
(C) To improve appetite
(D) To enhance sleep