Deranged jaw�neck motor control in whiplash-associated disorders

Active Release Techniques (ART)

ART is a patented, state of the art soft tissue system/movement based massage technique that treats problems with muscles, tendons, ligaments, fascia and nerves. Headaches, back pain, carpal tunnel syndrome, shin splints, shoulder pain, sciatica, plantar fasciitis, knee problems, and tennis elbow are just a few of the many conditions that can be resolved quickly and permanently with ART. These conditions all have one important thing in common: they are often a result of overused muscles.

家

news

Deranged jaw�neck motor control in whiplash-associated disorders

作者 Dr. Sid - Chiropractor

2009/08/03 Monday 15:24:01 MDT

European Journal of Oral Sciences, February, 2004; 112: 25–32.
Per-Olof Eriksson, Hamayun Zafar, Birgitta Haggman-Henrikson
FROM ABSTRACT
Recent findings of simultaneous and well coordinated head–neck movements during single as well as rhythmic jaw opening–closing tasks has led to the conclusion that “functional jaw movements” are the result of activation of jaw as well as neck muscles, leading to simultaneous movements in the temporomandibular, atlantooccipital and cervical spine joints. It can therefore be assumed that disease or injury to any of these joint systems would disturb natural jaw function.

To test this hypothesis, amplitudes, temporal coordination, and spatiotemporal consistency of concomitant mandibular and head-neck movements during single maximal jaw opening-closing tasks were analysed in 25 individuals suffering from whiplash-associated disorders (WAD) using optoelectronic movement recording technique.
Compared with healthy individuals, the WAD group showed smaller amplitudes, and changed temporal coordination between mandibular and head-neck movements.
These findings in the WAD group reflect a basic importance of linked control of the jaw and neck sensory-motor systems. In conclusion, the present results suggest that neck injury is associated with deranged control of mandibular and head–neck movements during jaw opening–closing tasks, and therefore might compromise natural jaw function.
THESE AUTHORS ALSO NOTE:
“Anatomical, biomechanical, neuroanatomical, neurophysiological and clinical studies indicate that the mandibular and the craniocervical regions are functionally linked.” “Functional jaw movements are the result of activation of jaw as well as neck muscles, leading to simultaneous movements in the temporomandibular, atlantooccipital and cervical spine joints.” [IMPORTANT]
“Natural jaw activities require a healthy state of both the mandibular and the head–neck motor systems.”