Deck 8: Immune Responses to Intensified Periods of Training

Question 1

Which of the following immune functions are thought to be associated with increased infection risk during periods of intensified training?

A) Lower levels of mucosal IgA
B) Lower levels of serum IgA
C) Lower numbers of circulating neutrophils
D) Lower numbers of circulating natural killer cells
E) Lower numbers of circulating monocytes

Answer 1

A

Question 2

The depression of acquired immunity during periods of intensified training is mostly associated with a reduction in type-2 T cell cytokine production.

Answer 2

False

Question 3

The production of which of the following cytokines by stimulated T cells has been shown to be reduced after intensive exercise?

A) IL-4
B) IL-6
C) IL-10
D) IL-12
E) IFN-γ

Answer 3

E

Question 4

Elevated levels of which of the following have been reported in blood samples collected from athletes at rest during intensified training?

A) Leptin
B) Adrenaline
C) Testosterone
D) IL-6
E) IgG

Question 5

Overtraining syndrome has been shown to be caused by alterations in immune cell cytokine production.

Question 6

Overtraining syndrome (or unexplained underperformance syndrome) has been defined as a persistent decrement in athletic performance capacity despite how many weeks of relative rest?

A) 1 week
B) 2 weeks
C) 4 weeks
D) 52 weeks
E) None of the above

Question 7

A high incidence of infections is reported in individuals with selective deficiency of SIgA or very low salivary flow rates.

Question 8

The majority of studies indicate that salivary SIgA levels are generally not different in athletes compared with non-athletes except when athletes are engaged in heavy training.
(A) TRUE
(B) FALSE
(C) 0

Question 9

In the study by Neville et al. (2008) in which elite yachtsmen were monitored over 50 weeks of training and competition, the authors reported...

A) A positive association between SIgA secretion rate and training load
B) A negative association between SIgA, concentration and training load
C)Apositive association between SIgA concentration and training load
D) A negative association between SIgA concentration and training load
E) A Positive association between SIgA ,concentration and infection incidence

Question 10

In the study by Gleeson et al. (2012), illness-prone athletes exhibited a higher secretion of IL-2 and IL-8 in antigen-stimulated whole blood culture.