Central and Peripheral Fatigue

Question 1

Report three ways of measuring post exercise fatigue.

Answer 1

Biochemical

Neuromuscular

Hormone / endocrine

Perceptual

Question 2

Why is creatine kinase used as an indirect marker of muscle damage?

Answer 2

CK is found in cells

Low circulating levels of CK in the blood

Following muscle damage CK leaks from cells and is found in the blood

Question 3

Report two common tests of lower body neuromuscular function.

Answer 3

Counter Movement Jump

Cycle Ergometer

Sprint

Question 4

Describe three potential causes of transient (short-term) fatigue?

Answer 4

Acidosis

Substrate depletion

Electrolyte depletion

Dehydration

Question 5

Massage therapy has shown to have no effect on skeletal muscle blood flow. However, what does massage therapy do to promote skeletal muscle adaptation?

Answer 5

Activates mechanotransduction signalling cascade

Accumulation of PGC1alpha in the cell nucleus

This leads to stimulation of mitochondrial biogenesis

Question 6

Massage therapy may also be anti-inflammatory. What is the mechanism?

Answer 6

Massage reduced inflammation

Notably reductions in TNFalpha and IL6