Quiz: Strengthening (PTA version)

This quiz will assess your knowledge of principles of resistance exercise for strengthening, including muscle fiber types, the overload principle, adaptation, alignment and stabilization.

Which of the following definitions is MOST correct when describing muscle power?

The work produced by a muscle per unit of time

The ability of contractile tissue to produce tension

The resultant force of a muscle based on demand placed on the muscle

The ability of a muscle to contract repeatedly against a load

Question 1 of 10

The use of a 1-repetition maximum (1-RM) test is inappropriate in some patient populations. Which of the following patient populations represents the MOST appropriate group with which one would use a 1-RM test?

Patients with cardiovascular pathology

Older adults who are active

Patients at risk for osteoporosis

Patients with joint impairments

Question 2 of 10

Which of the following terms BEST describes the principle that if muscle performance is to improve, a load that exceeds the metabolic capacity of the muscle must be applied?

Reversibility principle

Specificity of training

Cross-training effect

Overload principle

Question 3 of 10

In a patient with poor lower extremity muscular endurance, the physical therapist assistant should focus on interventions designed to increase the percentage of which type of muscle fiber, so that the patient can return to walking several miles a day?

Type III

Type I

Type IIA

Type IIB

Question 4 of 10

A patient is attempting to perform a supine, bilateral straight-leg raise to increase muscle performance in her abdominal muscles. However, she is unable to perform the activity without excessive lumbar extension as the legs are raised off of the support surface. Which of the following BEST describes this clinical situation?

The patient requires the removal of all external stabilization.

The patient requires internal stabilization by the therapist.

The patient has poor internal stabilization leading to substitute motions.

The patient has poor alignment leading to substitute motions.

Question 5 of 10

Which of the following adaptations to resistance exercise BEST describes a change that can be attributed to the neural system?

Increase in capillary bed density

Increase in number of motor units firing

Muscle fiber hypertrophy

Increase in ATP and myoglobin storage

Question 6 of 10

Which of the following BEST describes the point at which a muscle cannot shorten any further?

Close-packed position

Active insufficiency

Open-packed position

Passive insufficiency

Question 7 of 10

The physical therapist assistant (PTA) is aware that the patient will likely experience Delayed-Onset Muscle Soreness (DOMS), and may not want to continue the prescribed exercises for fear of the pain. In order to increase the chances that the patient will comply with the exercise prescription, the PTA should:

Provide the patient electrical stimulation to the sore muscles.

Allow the patient plenty of rest between sets and sessions.

Explain to the patient that DOMS is normal and expected.

Increase the intensity of the patient's activity gradually.

Question 8 of 10

Which of the following scenarios BEST describes a situation in which it is acceptable to continue with resistance exercises?

The patient has Guillain-Barre Syndrome.

The patient reports resting angina pectoris.

The patient reports muscle soreness during the exercise.

The tissue being targeted is inflamed.

Question 9 of 10

10.

All of the following factors will influence the tension created by a skeletal muscle, EXCEPT:

Distance of muscle from heart

Distribution of muscle fiber types

The starting position of the muscle

Recruitment of motor units

Question 10 of 10

Quiz: Strengthening (PTA version)

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