Week 6

Question 1

What is Eustress?

Answer 1

The capacity to adapt to a stressor

Question 2

Increase in muscle strength is correlated to changes in what type of motor unit?

Answer 2

High threshold MU size

Question 3

What type of training has a large impact on improving discharge frequency of MU?

Answer 3

High velocity - plyometrics

Question 4

What happens to muscle fibre types with unloading ?

Answer 4

More hybrids and less pure types

Question 5

Muscle architecture increases in size occur by what two mechanisms ?

Answer 5

1. Hypertrophy
2. Hyperplasia

Question 6

What is the mechanism behind “muscle memory”?

Answer 6

Myonuclei increase with hypertrophy and remain after unloading

Question 7

Titin is most affected by what type of exercise?

Answer 7

Eccentrics

Question 8

Why does increases in strength outweigh increases in muscle size ?

Answer 8

1. Neural adaptions
2. Changes to surround connective tissue

Question 9

What changes to surrounding connective tissue occur that assist in increases in strength after resistance training

Answer 9

1. Titin structure
2. Collagen type/orientation
3. Lateral force links - costameres

Question 10

At the myofiber level what effect will f
Faster contractions have on force production ?

Answer 10

Faster contraction = less force production