Rehabilitation and Therapy Physical Rehabilitation 2 — Questions and Answers
Question 1: What is the purpose of proprioceptive neuromuscular facilitation (PNF) stretching?
- To increase flexibility by using muscle reflexes to achieve deeper stretching (Correct answer)
- To build cardiovascular endurance
- To reduce joint inflammation
- To strengthen ligaments
Correct answer: To increase flexibility by using muscle reflexes to achieve deeper stretching
PNF stretching uses contract-relax techniques to inhibit the stretch reflex and allow greater muscle elongation.
Question 2: Which special test is used to assess anterior cruciate ligament (ACL) integrity?
- Lachman test (Correct answer)
- McMurray test
- Apley compression test
- Valgus stress test
Correct answer: Lachman test
The Lachman test evaluates ACL integrity by assessing anterior tibial translation on the femur with the knee at 20–30 degrees of flexion.
Question 3: In therapeutic ultrasound, what frequency is typically used for deeper tissue penetration?
- 1 MHz (Correct answer)
- 3 MHz
- 5 MHz
- 10 MHz
Correct answer: 1 MHz
1 MHz ultrasound penetrates to a depth of 3–5 cm, making it suitable for treating deep tissues like hip or lumbar muscles.
Question 4: Which principle states that bone remodels in response to mechanical stress placed upon it?
- Wolff's Law (Correct answer)
- Davis's Law
- Hooke's Law
- Newton's Third Law
Correct answer: Wolff's Law
Wolff's Law states that bone adapts its structure to the mechanical demands placed on it, becoming denser with loading and resorbing with disuse.
Question 5: What does TENS stand for in pain management therapy?
- Transcutaneous Electrical Nerve Stimulation (Correct answer)
- Thermal Energy Nerve Support
- Transdermal Electrical Neuro System
- Tissue Electrical Nerve Stimulation
Correct answer: Transcutaneous Electrical Nerve Stimulation
TENS delivers low-voltage electrical current through skin electrodes to modulate pain signals via the gate control theory.
Question 6: A patient with a rotator cuff tear most commonly involves which tendon?
- Supraspinatus (Correct answer)
- Infraspinatus
- Subscapularis
- Teres minor
Correct answer: Supraspinatus
The supraspinatus tendon is the most commonly torn component of the rotator cuff due to its position in the subacromial space and poor vascularization.
Rehabilitation and Therapy Physical Rehabilitation 2
What is the purpose of proprioceptive neuromuscular facilitation (PNF) stretching?