The Effect Of Cervical Muscle Fatigue in Neck Proprioception and Postural Stability

The Effect of Cervical Muscle Fatigue on Neck Proprioception and Postural Stability

PURPOSE:

To investigate the effect of cervical muscle Fatigue on neck proprioception and postural stability during cervical flexion.

BACKGROUND:

Postural stability is the ability to maintain the body in equilibrium either at rest or in a steady state of motion . Muscle fatigue is the diminished response of muscle to repeated stimulus. Cervical proprioceptive inputs provide important somatosensory information influencing postural stability. Hence, the investigators performed this study to evaluate the effect of experimentally induced fatigue on general cervical musculature on postural stability .

HYPOTHESES:

This study will hypnotize that:

1. Cervical flexor muscle fatigue will have a significant effect on neck proprioception
2. Cervical muscle fatigue will have a significant effect on posture stability

RESEARCH QUESTION:

Will fatigue of cervical flexors have an effect on neck proprioception and postural stability?

Study Overview

• Status: Unknown
• Conditions: Muscle Fatigue
• Intervention / Treatment: Device: Assessment

Detailed Description

the research methodology that will be used

Induction of fatigue using isometric neck flexor muscle endurance test (NET):

An isometric neck muscle endurance test (NME test) will be performed for the deep neck flexors (Rectus Capitus Anterior, Rectus Capitus Lateralis, Longus Capitus, Longus Colli) until exhaustion in all participants occurs. With the subject in hook lying position through CHIN RETRACTION AND HEAD ELEVATED FROM THE COUCH.

All the assessment measurements will be done before and just immediately after performing the cervical muscle fatigue then after 15 minutes of fatigue induction(fatigue recovery) A. Measurement of neck proprioception using cervical joint position error test via OVERHEAD LASER POINTER

B. Measurement of postural stability using :

1. Biodex balance system(limit of stability) to measure postural stability
2. Multi-Directional Reach Test

• Study Type: Observational
• Enrollment (Anticipated): 45

Contacts and Locations

Study Locations

• Egypt
  • Giza
    • Cairo, Giza, Egypt, 00202
      • Recruiting
      • Ministry of health
      • Contact: Alaa Y Atia, Bachelor's; Phone Number: 00201061445332; Email: dr.lolo2018@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 40 years (Adult)
• Accepts Healthy Volunteers: N/A
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Residents from certain town

Description

Inclusion Criteria:

• having cervical range of motion 80 to 90 of flextion, 70 degree of extension, 20 to 45 degrees if lateral flextion, and 80 to 90 rotation to both sides.
• having normaluscle test strength for cervical neck flexors according to group manual muscle test
• body mass index ranging from 18.5 to 24.9 kg/m2

Exclusion Criteria:

• any history of pathological truma to the cervical,thoracic or lumbar spine, upper extremity or rib cage.
• surgical condition of the spine
• having any orthopedic, musculoskeletal or neurological disorders around cervical region.
• any vestibular impairment (e.g.vertigo)
• spinal postural deformities as hyper kyphosis &scoliosis

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Induction of fatigue using isometric neck flexor muscle endurance test (NET):	a. An isometric neck muscle endurance test (NME test) will be performed for the deep neck flexors (Rectus Capitus Anterior, Rectus Capitus Lateralis, Longus Capitus, Longus Colli) until exhaustion in all participants occurs. with the subject in hook lying position through CHIN RETRACTION AND HEAD ELEVATED FROM THE COUCH.	six months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Measurement of neck proprioception using cervical joint position error test via OVERHEAD LASER POINTER	: A laser pointer will be fixed to a headband or strap. Target paper will be typically 40 cm in diameter that contains concentric circles in 1 cm increments, divided into 4 quadrants intersecting at the zero.	six months

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Multi-Directional Reach Test	Multi-Directional Reach (MDRT) is an inexpensive screening tool to determine the limits of stability of individuals in 4 directions. It measure how far an individual can voluntarily reach, thereby shifting the COG to the limits of the BOS with the feet stationary. The MDRT is a valid and reliable clinical measure for limits of stability. The test can be used to assess human postural stability in different four direction as follow (Roberta 2001)	six months
Biodex Balance System for The postural stability test	The postural stability test emphasized on subject's ability to maintain center of balance. The subject's score on this test will assess the deviations from center, thus a lower score is more desirable than a higher score. Platform stability could be varied during this test by selecting (more options) from the Postural Stability Testing screen. It was proved that trial time, number of trials, starting and ending platform stability, rest count-downs or bilateral test could be set (Tropp and Odenrick., 2011).	six months

Collaborators and Investigators

• Sponsor: Alaa Yousri Mahmoud Atia

Study record dates

Study Major Dates

• Study Start (Actual): March 31, 2019
• Primary Completion (Actual): June 15, 2020
• Study Completion (Anticipated): July 20, 2020

Study Registration Dates

• First Submitted: June 14, 2019
• First Submitted That Met QC Criteria: June 24, 2019
• First Posted (Actual): June 26, 2019

Study Record Updates

• Last Update Posted (Actual): June 18, 2020
• Last Update Submitted That Met QC Criteria: June 16, 2020
• Last Verified: June 1, 2020

More Information

Terms related to this study

• Keywords: fatigue ,deep neck flexor
• Additional Relevant MeSH Terms: Fatigue
• Other Study ID Numbers: P. T. REC/012/002299

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No