7

Question 1

Two ways to regulate force

Answer 1

1. Number of motor units

2. Frequency of recruitment

Question 2

Faster recruitment results in:

Answer 2

Summation

Question 3

Greater number of motor units =

Answer 3

Greater CSA and force

Question 4

Henneman size principle

Answer 4

Motor units are recruited from slow/small to large/fast

Question 5

Order of the step graph

Answer 5

1. Type1: small jumps in force with slow velocity
2. IIa: bigger force jump and faster velocity
3. IIx: largest jump in force and fastest velocity

Question 6

4 things force is controlled by

Answer 6

1. Frequency of stimulation
2. # of MU recruited
3. CSA of MU
4. Length of muscle in relation of Lo

Question 7

Ankle plantar flexor

Answer 7

Soleus

Question 8

95% type I myosin

Answer 8

SOL

Question 9

Ankle dorsiflexor

Answer 9

EDL

Question 10

95% type IIb

Answer 10

EDL