After assessment of UT muscle, the TrP has been merkered.
The electrode will be positioned 2 cm lateral to the midpoint of the line between the C7 spinous process and the acromion.
During sustained contractions of the trapezius, the subjects were asked to perform a shoulder elevation against the force transducers with the arms hanging passively alongside the body.
A measurement started with a maximum voluntary contraction force (MVC) of the trapezius. In this case, the subjects were asked to perform a dominant shoulder elevation against the force transducer with as much force as possible for at least 10 sec. This procedure was repeated three times with in-between breaks of 20 s. If the highest force was measured in the last MVC contraction, an additional contraction was performed.
The maximum number of MVC contractions was limited to three. The highest measured force level was assumed to be the MVC of the trapezius.
Again the highest force value was considered to be the MVC. After a break of 5 min, a sustained submaximal contraction of the trapezius was performed. The subjects were asked to sustain a bilateral 80% MVC isometric shoulder elevation until the force gauge monitor showed 50% of MVC.
The force level corresponding to 80% of the MVC was chosen because the protocol aimed to trigger muscle fatigue.
This study will be done in only one session.
General information
Acronym
Trigger Point (TrP), Upper Trapezius (UT)
IRCT registration information
IRCT registration number:IRCT2017011426346N2
Registration date:2017-05-02, 1396/02/12
Registration timing:retrospective
Last update:
Update count:0
Registration date
2017-05-02, 1396/02/12
Registrant information
Name
Gholamreza Olyaei
Name of organization / entity
Tehran University Of Medical Science
Country
Iran (Islamic Republic of)
Phone
+98 21 7752 8469
Email address
olyaeigh@sina.tums.ac.ir
Recruitment status
Recruitment complete
Funding source
Tehran University of Medical Sciences
Expected recruitment start date
2016-10-22, 1395/08/01
Expected recruitment end date
2017-01-19, 1395/10/30
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Effect of fatigue on neck joint position sense, pressure pain threshold and pain intensity in trigger point of upper trapezius muscle
Public title
effect of fatigue on trigger point of upper trapezius muscle
Purpose
Treatment
Inclusion/Exclusion criteria
Individuals within an age range of 18 to 35 years will be accepted for both groups to minimize any confounding effects stemming from advanced degenerative alterations in the cervical spine. History of neck pain for a period of more than three months; restricted active or passive neck movement in at least one direction and score range of three to six points on an 11-point (range: 0 to 10) numerical rating scale for perceived pain intensity. The inclusion criteria for the control group (CG) will be no self-reported history of neck pain and no positive signs of cervical spine or scapular dysfunction during the physical examination.
Age
From 18 years old to 35 years old
Gender
Both
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
64
Randomization (investigator's opinion)
Randomized
Randomization description
Blinding (investigator's opinion)
Single blinded
Blinding description
Placebo
Used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ethic Committee of Tehran University of Medical Sciences
Street address
ehran University of Medical Sciences, Pour Sina St, Keshavarz blvd.
City
Tehran
Postal code
Approval date
2016-10-22, 1395/08/01
Ethics committee reference number
IR.TUMS.VCR.REC.1395.803
Health conditions studied
1
Description of health condition studied
Neck pain
ICD-10 code
M79.1
ICD-10 code description
Myalgia
Primary outcomes
1
Description
Pressure pain tresold
Timepoint
immediately before and after intervention
Method of measurement
algometer
2
Description
pain intensity
Timepoint
immediately before and after intervention
Method of measurement
Visual Analoge Scale
3
Description
RMS & median frequency
Timepoint
immediately before and after intervention
Method of measurement
surface electromyography
4
Description
position sence
Timepoint
immediately before and after intervention
Method of measurement
photography
Secondary outcomes
1
Description
pain
Timepoint
immediatly before and after fatigue
Method of measurement
algometer
2
Description
Muscle Spasm
Timepoint
immediatly before and after fatigue
Method of measurement
manual assessment
Intervention groups
1
Description
Fatigue in control group
subjects were asked to perform a dominant shoulder elevation against the force transducer with as much force as possible for at least 10 sec. This procedure was repeated three times with in-between breaks of 20 s. If the highest force was measured in the last MVC contraction, an additional contraction was performed.
The maximum number of MVC contractions was limited to three. The highest measured force level was assumed to be the MVC of the trapezius.
Again the highest force value was considered to be the MVC. After a break of 5 min, a sustained submaximal contraction of the trapezius was performed. The subjects were asked to sustain a unilateral 80% MVC isometric shoulder elevation until the force gauge monitor showed 50% of MVC in least 3 minutes.
Category
Other
2
Description
Fatigue in Internationale group
subjects were asked to perform a dominant shoulder elevation against the force transducer with as much force as possible for at least 10 sec. This procedure was repeated three times with in-between breaks of 20 s. If the highest force was measured in the last MVC contraction, an additional contraction was performed.
The maximum number of MVC contractions was limited to three. The highest measured force level was assumed to be the MVC of the trapezius.
Again the highest force value was considered to be the MVC. After a break of 5 min, a sustained submaximal contraction of the trapezius was performed. The subjects were asked to sustain a unilateral 80% MVC isometric shoulder elevation until the force gauge monitor showed 50% of MVC in least 3 minutes.
Category
Other
Recruitment centers
1
Recruitment center
Name of recruitment center
School Of Rehabilitation, Tehran University of Medical Sciences
Full name of responsible person
Roya Mehdikhani
Street address
School Of Rehabilitation, Piche Shemroon, Enghelab street, Tehran
City
Tehran
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Research Department of Tehran University of Medical Sciences
Full name of responsible person
Dr. Masoud Yunesian
Street address
Tehran University of Medical Sciences, Ghods Street, Keshavarz Blv
City
Tehran
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Research Department of Tehran University of Medical Sciences
Proportion provided by this source
100
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
Person responsible for general inquiries
Contact
Name of organization / entity
Tehran University of Medical Sciences, School of Rehabilitation
Full name of responsible person
Dr Gholamreza Olyaei
Position
Professor
Other areas of specialty/work
Street address
School Of Rehabilitation, Piche Shemroon, Enghelab Street
City
Tehran
Postal code
Phone
+98 21 7752 8469
Fax
Email
olyaeigh@sina.tums.ac.ir
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Dr. Gholamreza Olyaei
Position
Professor
Other areas of specialty/work
Street address
School Of Rehabilitation, Piche Shemroon, Enghelab Street
City
Tehran
Postal code
Phone
+98 21 7752 8469
Fax
Email
olyaeigh@sina.tums.ac.ir
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Tehran University of Medical Sciences, School of Rehabilitation
Full name of responsible person
Roya Mehdikhani
Position
PhD candidate of physical Therapy
Other areas of specialty/work
Street address
School of Rehabilitation, Piche Shemroon, Enghelab Street, Tehran
City
Tehran
Postal code
Phone
+98 24 3345 3557
Fax
+98 24 3345 3558
Email
mehdikhani.physicaltherapy@gmail.com
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)