Advantages in Structural Changes

Question 1

What are the advantages of an increase in cross-sectional area?

Answer 1

• Force generating capacity increases.
• At the fibre level there are:
  1. An increase of both type 1 + 2 fibres in response to resistence training.
  2. Greater area of type 2 fibres in response to resistence training.

Question 2

What are the advantages of a longer fascicle length?

Answer 2

• Longer fascicles are capable of contracting at greater velocities.
• Longer fascicles can generate greater force at longer lengths.

Question 3

What can cause a change in fibre type profile?

Answer 3

• High velocity (speed) training results in an increase in type 2a fibres and a decrease in type 1.
• Endurance activities will lead to an increase in type 1 fibres.