Table 1 Summary data from in situ experiment on rat superficial masseter.

From: Rat superficial masseter operates at long lengths during biting

Rat

Stim (V)

FO (N) (submax)

FO (N) (twitch)

LO (mm) (submax)

LO (mm) (twitch)

Tension (submax)

1

10

6.5*

-

12.8

-

10.5

2

9

6.7*

-

8.7

-

14.1

3

10

5.7

0.4

6.1

6.7

12.8

4

11

6.6#

-

-

-

12.3

5

6

3.5

0.7

8.5

9.6

6.9

6

10

3.7#

-

-

-

7.3

7

6

6.2

1.9

5.2

6.2

8.1

8

12

6.2

1.5

3.1

3.4

11.1

9

8

7.3

2.2

5.8

6.1

9.0

  1. *Twitch FL not measured. #FL curves from motor position, not fascicle length.