Deck 4: Cardio-Metabolic Risk Factors and Obesity

Question 1

Which of the following describes one of the mechanisms proposed to explain the blood pressure lowering effect of acute exercise?

A) Reduction in endothelial-dependent vasodilation
B) Reduction in cardiac output
C) Reduction in sympathetic nerve activity
D) Arterial remodelling resulting in increased arterial size

Answer 1

C

Question 2

Which of the following plays a central role in explaining the chronic exercise-induced improvement in endothelium-dependent vasodilation?

A) Nitric oxide
B) Acetylcholine
C) Histamine
D) Adenosine

Answer 2

A

Question 3

Which of the following is unlikely to be a mechanism by which acute exercise promotes glucose uptake into skeletal muscle that is insulin resistant?

A) Increased glucose concentration gradient between the blood and muscle cell membrane
B) Up-regulation of the insulin receptor on the cell membrane
C) Increased muscle blood flow
D) Stimulation of GLUT-4 translocation to the cell membrane

Answer 3

B

Question 4

In the analysis by Mora et al. (2007), what proportion of the inverse association between physical activity and risk of incident CVD could not be explained by the measured CVD risk factors?

A) 91%
B) 11%
C) 61%
D) 41%

Question 5

What is the BMI classification for an individual with a BMI of 31.8 kg m⁻²?

A) Normal
B) Overweight
C) Obesity class I
D) Obesity class II

Question 6

Which of the following is not a site of ectopic fat storage?

A) Skeletal muscle
B) Subcutaneous adipose tissue
C) Pancreas
D) Liver

Question 7

Which of the following statements is false?

A) Heavier individuals expend more energy than light individuals when performing the same weight-bearing activity
B) High levels of physical activity are associated with lower weight gain over time
C) Exercise alone can be an effective therapy for obesity
D) Resting metabolic rate is lower in individuals with obesity than individuals who are lean

Question 8

Which of the following factors appears most important for exercise to induce weight loss?

A) Exercise volume
B) Exercise intensity
C) Exercise modality
D) Exercise frequency

Question 9

According to the American College of Sports Medicine Position Stand on exercise and weight management, how much exercise is necessary to prevent weight gain over time?

A) 0-100 min week⁻¹
B) 150-250 min week⁻¹
C) 300-400 min week⁻¹
D) 450-550 min week⁻¹