Movement Analysis
A
s discussed, muscles have the ability to receive and re-
spond to input from the nervous system. The response of
a muscle is either to contract or relax. From a functional
perspective, it is important for the trainer to understand that most
of the muscles of the trunk and extremities have anatomically
opposite muscles. Anatomically, the muscles are arranged in op-
posing pairs.
Chapter 5 Biomechanics and Applied Kinesiology
Extensors
Upper Erector Spinae
Splenius
Erector Spinae
Latissimus Dorsi
Posterior Deltoid
Triceps Brachii
Gluteus Maximus
*Hamstrings
Quadriceps
Gastrocnemius and
Soleus
(Plantar flexion)
Flexors
Sternocleidomastoid
Rectus Abdominis
*Obliques
Pectoralis Major
Anterior Deltoid
Biceps Brachii
Brachialis
Brachioradialis
Iliopsoas
Sartorius
*Rectus Femoris
Hamstrings
*Gastrocnemius
Tibialis Anterior
(Dorsi flexion)
Joint Area
Cervical Spine
and Skull
Vertebral Column:
cervical, thoracic,
and lumbar spine
Glenohumeral Joint
[shoulder]
Humeroulnar Joint
and Radiohumeral
joint [elbow]
Coxal Joint [hip]
Genual Joint [knee]
Subtalar Joint
and other Joints
between the Tarsal
bones of the foot
[ankle]
Abductors
Medial Deltoid
Tensor
Fasciae Latae
Gluteus Minimus
Gluteus Medius
Peroneals
(Eversion)
Adductors
Latissimus Dorsi
Pectoralis Major
Adductors
(5 muscles)
Tibialis Anterior
Tibialis Posterior
(Inversion)
Major Muscle Pairs
*These muscles are assisting.
Sample Pages PDF Extract
This is not the complete chapter