Effect of Neck Muscle Fatigue on Cervical Position Sense

Ravi, SR and Arun, MG and Sharath, K (2010) Effect of Neck Muscle Fatigue on Cervical Position Sense. Physiotherapy - The Journal of Indian Association of Physiotherapists.

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Abstract

Background : Proprioception plays an important role in joint function and performance. Fine motor coordination requires accurate afferent input from the joints and muscles involved. These signals probably come from mechanical receptors in the soft tissues. In the neck, the muscles, tendons, and joint capsule are likely sources of such signals. Intact joint position sense is necessary for normal muscle coordination and timing.Muscle fatigue is known to modify the discharge of sensory receptors such as muscle spindles or Golgi tendon organs in the animal. It has become evident that active muscle forces play a significant role in cervical joint stability. However there is limited literature on neck muscle fatigue and cervical position sense. Therefore the aim of the study was to determine Effect of neck muscle fatigue on cervical position sense Materials and Methods : 25 asymptomatic young adults (age range, 18–30 years) were recruited in the study. The subjects were measured for reposition errors (degrees) by the cervical reposition tests which include Head-to- Neutral Head Position (NHP) repositioning tests and Head-to-Target repositioning tests with Cervical Range of Motion (CROM) Device. The two repositioning tests were performed in the sagital, transverse, and frontal planes. The subjects were introduced to neck muscle fatigue protocol with the help of digital dynamometer and reposition errors were measured post fatigue protocol. Results : The results of paired t- test for pre-post comparison of Head To Neutral Head Position and Head To Target Repositioning tests within the groups showed a significant difference in all the planes, sagital (flexion and extension), frontal (side flexion right and left), and transverse (Rotation left and right) with p 0.001. Conclusion : Present study proved that neck muscle fatigue alters cervical position sense in all plane movements and cervical proprioception that accompanies muscle fatigue may be lessened with proper training, providing for a higher level of cervical motor performance

Item Type: Article
Uncontrolled Keywords: Neck muscles: Position sense: Proprioception: fatigue
Subjects: Allied Health > MCOAHS Manipal > Physiotherapy
Medicine > KMC Manipal > Orthopaedics
Depositing User: KMC Manipal
Date Deposited: 13 Dec 2012 10:03
Last Modified: 08 Feb 2013 11:20
URI: http://eprints.manipal.edu/id/eprint/77693

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