THE PHYSIOLOGY OF MUSCLE 2

Which of the following changes were induced by muscular endurance training?

• Increase in muscle fiber size.

• Increase in muscle fiber number.

• Increase in oxidative capacity.

• Increase in muscle strength.

The rapid and largely changing changes in muscle strength at the first 2 weeks of strength training are contributed by _____.

• neural factors

• muscle hypertrophy

• muscle atrophy

• muscle hyperplasia

Which of the following facts is TRUE about atrophy?

• Initial atrophy after 7 days of prolonged bed rest

• Due to increased protein synthesis

• Can be reversed by flexibility training

• Loss of muscle mass and strength

What does endurance training do?

• Increase myoglobin

• Reduce mitochondrial enzymes

• reduce glycogen stores

• Increase lactate production

Which of the following TRUE about muscle action and muscle length changes?

• Concentric, Decrease muscle length

• Eccentric, Decrease muscle length

• Concentric, Increase muscle length

• Eccentric, No changes in muscle length