2016.01.20 CSCS Daily Study Question:
According to the principle of the Frank-Starling Mechanism, greater venous return to the heart stretches myocardial fibers resulting in…
(A) Increased heart rate
(B) Lower cardiac output
(C) More forceful diastolic ejection
(D) More forceful systolic ejection
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Correct Answer:
(D) More forceful systolic ejection
Explanation:
According to the Frank-Starling Mechanism, as more blood returns to the heart, the myocardial fibers are stretched to a greater extent. This stretching causes a more forceful contraction (systolic ejection) and results in greater cardiac emptying. If more blood is being ejected by the heart, then the cardiac output increases as well. Heart rate has nothing to do with the Frank-Starling Mechanism. The heart is filling with blood during diastole, so diastolic ejection cannot occur.
Reference:
Essentials of Strength Training & Conditioning 3rd edition p. 122 – 123
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The Certified Strength and Conditioning Specialist (CSCS) exam by the National Strength and Conditioning Association (NSCA) is a four-hour-long, pencil and paper or computer-based examination. The Certified Strength and Conditioning Specialist exam has two sections: “Scientific Foundations” and “Practical / Applied.” Each of these sections consist of questions that the National Strength and Conditioning Association (NSCA) feels are relevant to test the knowledge and experience of a candidate for the Certified Strength and Conditioning Specialist (CSCS) professional credential. Certified strength conditioning specialist comprehensive questions from the Scientific Foundations section include anatomy, exercise physiology, biomechanics, and nutrition. certified strength conditioning specialist comprehensive questions from the Practical / Applied section include program design, exercise techniques, testing and evaluation, and organization / administration (NSCA, 2015).
2016.01.20 CSCS Daily Study Question