THERAPEUTIC EXERCISE · CHAPTER 3
Resistance Exercise — Practice
Three questions. Choose an answer, then tap Check answer. Read the reasoning—even when you get it right. You can open another option to compare explanations.
QUESTION 1 OF 3
During seated knee extension, a patient slowly lowers the cuff-weighted leg from a straight knee into knee flexion. The quadriceps control the lowering. What contraction are the quadriceps performing?
A. Concentric
Check answer
Have another look.
Concentric work involves shortening, as the quadriceps lift the lower leg against gravity in this example.
Best answer: C. Eccentric
The quadriceps lengthen while controlling the load as the knee bends.
What this tests: Identify an eccentric contraction.
Tap Check answer to close this explanation, or try another option.
B. Isometric
Check answer
Have another look.
The knee is moving and the quadriceps are changing length, so this is not a stationary hold.
Best answer: C. Eccentric
The quadriceps lengthen while controlling the load as the knee bends.
What this tests: Identify an eccentric contraction.
Tap Check answer to close this explanation, or try another option.
C. Eccentric
Check answer
That’s the best answer.
The quadriceps lengthen while controlling the load as the knee bends.
What this tests: Identify an eccentric contraction.
Tap Check answer to close this explanation, or try another option.
D. No active contraction
Check answer
Have another look.
The prompt specifies that the quadriceps are actively controlling the descent.
Best answer: C. Eccentric
The quadriceps lengthen while controlling the load as the knee bends.
What this tests: Identify an eccentric contraction.
Tap Check answer to close this explanation, or try another option.
QUESTION 2 OF 3
Which muscle performance characteristic describes how quickly work is performed?
A. Power
Check answer
That’s the best answer.
Power is work divided by time. It is related to both force and movement velocity.
What this tests: Distinguish power from maximal force.
Tap Check answer to close this explanation, or try another option.
B. Muscular endurance
Check answer
Have another look.
Endurance concerns sustaining or repeating effort; it is different from the rate of doing work.
Best answer: A. Power
Power is work divided by time. It is related to both force and movement velocity.
What this tests: Distinguish power from maximal force.
Tap Check answer to close this explanation, or try another option.
C. Maximal strength
Check answer
Have another look.
Maximal strength concerns the greatest force produced, without making speed the defining feature.
Best answer: A. Power
Power is work divided by time. It is related to both force and movement velocity.
What this tests: Distinguish power from maximal force.
Tap Check answer to close this explanation, or try another option.
D. Hypertrophy
Check answer
Have another look.
Hypertrophy is an increase in muscle size; it is not the rate of doing work.
Best answer: A. Power
Power is work divided by time. It is related to both force and movement velocity.
What this tests: Distinguish power from maximal force.
Tap Check answer to close this explanation, or try another option.
QUESTION 3 OF 3
For a specific exercise, a hypothetical measured 1RM is 40 lb. What is 70% of that load? This is a calculation exercise, not a patient prescription.
A. 12 lb
Check answer
Have another look.
12 lb is 30% of 40 lb, not 70%.
Best answer: D. 28 lb
40 × 0.70 = 28 lb. Clinical suitability still requires more information.
What this tests: Calculate a percentage of 1RM.
Tap Check answer to close this explanation, or try another option.
B. 40 lb
Check answer
Have another look.
40 lb is the full 1RM, or 100%.
Best answer: D. 28 lb
40 × 0.70 = 28 lb. Clinical suitability still requires more information.
What this tests: Calculate a percentage of 1RM.
Tap Check answer to close this explanation, or try another option.
C. 57.1 lb
Check answer
Have another look.
Dividing 40 by 0.70 gives about 57.1; a 70% load requires multiplication.
Best answer: D. 28 lb
40 × 0.70 = 28 lb. Clinical suitability still requires more information.
What this tests: Calculate a percentage of 1RM.
Tap Check answer to close this explanation, or try another option.
D. 28 lb
Check answer
That’s the best answer.
40 × 0.70 = 28 lb. Clinical suitability still requires more information.
What this tests: Calculate a percentage of 1RM.
Tap Check answer to close this explanation, or try another option.
Back to Chapter 3 · Choose another question set
Sources & scope
Original questions based on the uploaded Assessment and Prescription, Functioning and Disability and Resistance Exercise notes and the linked chapter. These are student practice questions, not official NPTE items or complete patient treatment plans. No score or answers are saved.
APTA: connecting interventions and functional progress · ACSM 2026: resistance training. Reviewed October 29, 2026.
