CPSS Performance Assessment Technologies 4

Question 1

A performance scientist wants to assess the reliability of a new jump testing protocol. Which statistical method is most appropriate for evaluating test-retest reliability?

Accepted Answer

Intraclass correlation coefficient (ICC) with coefficient of variation

Answer

ICC combined with coefficient of variation evaluates both relative and absolute reliability, making it the gold standard for test-retest assessment.

Question 2

Which GPS-derived metric best represents the maximum neuromuscular power output during team sport sprinting?

Accepted Answer

Peak speed over a rolling 0.1-second window

Answer

Peak speed measured over a short rolling window captures the highest instantaneous velocity achieved, reflecting maximal sprint neuromuscular output.

Question 3

In electromyography (EMG) signal processing, what is the purpose of applying a bandpass filter between 20-500 Hz to raw surface EMG data?

Accepted Answer

To remove movement artifacts and high-frequency electrical noise while preserving the muscle signal

Answer

Bandpass filtering between 20-500 Hz removes low-frequency motion artifacts and high-frequency noise while preserving the true myoelectric signal.

Question 4

What is the primary advantage of using a portable metabolic cart (e.g., COSMED K5) over a laboratory metabolic system during field testing?

Accepted Answer

Enables gas exchange measurement during sport-specific activities in real-world environments

Answer

Portable metabolic carts allow VO2 and VCO2 measurement during sport-specific movements in field settings that lab treadmills cannot replicate.

Question 5

A performance scientist uses ultrasound imaging to assess vastus lateralis morphology. Which measurement is most closely associated with muscle force-producing capacity?

Accepted Answer

Pennation angle and fascicle length

Answer

Pennation angle influences force transmission and fascicle length determines shortening velocity and excursion, together characterizing force-producing architecture.

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS Performance Assessment Technologies 4