NASM CES: CHAPTER 2:3 Introduction to the Human Movement Science

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What part of the nervous system is designed to optimize muscle synergies?

Central

What is the eccentric function of the gluteus medius (posterior fibers)?

Decelerates hip adduction and internal rotation

Flexion at the ankle is more accurately termed what?

Dorsiflexion

What are the major muscle groups of the deep longitudinal sub-system?

Erector spinae, thoracolumbar fascia, sacrotuberous ligament, biceps femoris, peroneus longus

Which sub-system works synergistically with the deep longitudinal sub-system and consists of the gluteus maximus, thoracolumbar fascia, and contralateral latissimus dorsi?

Posterior oblique sub-system

What is the concentric function of the latissimus dorsi?

Shoulder extension, adduction, and internal rotation

What is the concentric function of the anterior tibialis?

Accelerates ankle dorsiflexion and inversion

What are the major muscle groups of the lateral sub-system?

Gluteus medius, tensor fascia latae, adductor complex, quadratus lomborum

What are the major muscle groups of the anterior oblique sub-system?

Internal and external obliques, adductor complex, hip external rotators

What is the concentric function of the posterior tibialis?

Accelerates ankle plantar flexion and inversion

What is the concentric function of tensor fascia latae?

Accelerates hip flexion, abduction, and internal rotation

What is the concentric function of the biceps femoris (short head)?

Accelerates knee flexion and tibial external rotation

What is the eccentric function of the pectoralis major?

Decelerates shoulder extension, horizontal abduction, and external rotation

What is the cumulative neural input from sensory afferents to the central nervous system?

Proprioception

The joint support system of the lumbo-pelvic-hip complex (LPHC) includes the following muscles.

Transverse abdominis, multifidus, internal oblique, diaphragm, pelvic floor muscles


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