Massage Therapist Massage Therapist Kinesiology and Biomechanics Questions and Answers 2 — Questions and Answers
Question 1: Which type of muscle contraction occurs when a muscle generates force while lengthening, such as slowly lowering a weight?
- Eccentric contraction (Correct answer)
- Concentric contraction
- Isometric contraction
- Isokinetic contraction
Correct answer: Eccentric contraction
An eccentric contraction occurs when a muscle lengthens under tension, controlling the deceleration of a movement.
Question 2: What is the term for the point where a muscle attaches to the more stationary bone during movement?
- Origin (Correct answer)
- Insertion
- Belly
- Tendon junction
Correct answer: Origin
The origin is the proximal attachment site of a muscle, typically on the more stable or stationary bone.
Question 3: In biomechanics, what type of lever system is most common in the human body?
- Third-class lever (Correct answer)
- First-class lever
- Second-class lever
- Fourth-class lever
Correct answer: Third-class lever
Third-class levers, where the effort is between the fulcrum and the load, are the most common lever type in the human body.
Question 4: Which plane of motion divides the body into front and back halves and includes movements such as abduction and adduction?
- Frontal (coronal) plane (Correct answer)
- Sagittal plane
- Transverse plane
- Oblique plane
Correct answer: Frontal (coronal) plane
The frontal or coronal plane divides the body into anterior and posterior sections and is the plane in which lateral movements occur.
Question 5: What is the role of the synergist muscle during a movement?
- It assists the prime mover in performing the action (Correct answer)
- It directly opposes the prime mover
- It stabilizes the joint to prevent unwanted movement
- It acts as the primary force producer
Correct answer: It assists the prime mover in performing the action
A synergist muscle assists the agonist by contributing to the same movement or reducing unnecessary motion.
Question 6: During knee extension while seated, which muscle group acts as the antagonist?
- Hamstrings (Correct answer)
- Quadriceps
- Gastrocnemius
- Tibialis anterior
Correct answer: Hamstrings
The hamstrings oppose knee extension by being the primary knee flexors, making them the antagonist during this movement.
Massage Therapist Massage Therapist Kinesiology and Biomechanics Questions and Answers 2
Which type of muscle contraction occurs when a muscle generates force while lengthening, such as slowly lowering a weight?