ANTHROPOMETRY - Biomechanics and Motor Control of Human Movement - page 101

TABLE 4.3 Mass, Length, and PCA of Some Muscles

Fiber Pennation

PCA (cm 2 ) Muscle Mass (g) Length (cm) Angle (deg)

Sartorius 75 38 1.9 0

Biceps femoris (long) 150 9 15.8 0

Semitendinosus 75 16 4.4 0

Soleus 215 3.0 58 30

Gastrocnemius 158 4.8 30 15

Tibialis posterior 55 2.4 21 15

Tibialis anterior 70 7.3 9.1 5

Rectus femoris 90 6.8 12.5 5

Vastus lateralis 210 6.7 30 5

Vastus medialis 200 7.2 26 5

Vastus intermedius 180 6.8 25 5

TABLE 4.4 Percent PCA of Muscles Crossing Ankle, Knee, and Hip Joints

Ankle Knee Hip

Muscle %PCA Muscle %PCA Muscle %PCA

Soleus 41 Gastrocnemius 19 Iliopsoas 9

Gastrocnemius 22 Biceps Femoris

(small)

3 rt ri s 1

Flexor Hallucis
Longus

6 Biceps Femoris

(long)

7 Pectineus 1

Flexor Digitorum
Longus

3 Semitendinosus 3 Rectus Femoris 7

Tibialis Posterior 10 Semimembranosus 10 Gluteus Maximus 16

Peroneus Brevis 9 Vastus Lateralis 20 Gluteus Medius 12

Tibialis Anterior 5 Vastus Medialis 15 Gluteus Minimus 6

Extensor Digitorum
Longus

3 Vastus Intermedius 13 Adductor Magnus 11

Extensor Hallucis
Longus

1 Rectus Femoris 8 Adductor Longus 3

Sartorius 1 Adductor Brevis 3

Gracilis 1 Tensor Fasciae

Latae

1

Biceps Femoris
(long)

6

Semitendinosus 3

Semimembranosus 8

Piriformis 2

Lateral Rotators 13