CPSS Foundational Scientific Disciplines 3

Question 1

Wolff's Law states that bone adapts its structure in response to:

Accepted Answer

Mechanical loads placed upon it

Answer

Wolff's Law describes bone's functional adaptation — increased mechanical loading stimulates remodeling and increased bone density along lines of stress.

Question 2

Which energy system provides the majority of ATP during a 400-meter sprint lasting approximately 45–55 seconds?

Accepted Answer

Glycolytic and phosphocreatine systems combined

Answer

A 400-meter sprint relies predominantly on fast glycolysis and residual PCr stores, with growing oxidative contribution as duration exceeds 30 seconds.

Question 3

Which principle of physics explains why a diver tucking into a tight ball rotates faster than when extended?

Accepted Answer

Conservation of angular momentum

Answer

Conservation of angular momentum (L = Iω) dictates that reducing moment of inertia by tucking must increase angular velocity to keep angular momentum constant.

Question 4

The term 'effect size' in sport science research primarily quantifies:

Accepted Answer

Practical magnitude of a difference or relationship

Answer

Effect size (e.g., Cohen's d, eta-squared) measures the practical or theoretical magnitude of an effect, independent of sample size or statistical significance.

Question 5

Which hormone has the greatest acute anabolic effect following resistance exercise?

Accepted Answer

Testosterone

Answer

Testosterone shows the most robust acute elevation post-resistance exercise and directly stimulates muscle protein synthesis and satellite cell activation.

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS Foundational Scientific Disciplines 3