Comparison of the effects of transcranial direct current stimulation and stretching exercises on mental fatigue using electroencephalographic parameters in people with slump posture
The aim of this study is to investigate the effect of slump posture on performance and mental fatigue using electroencephalography and compare the effect of TDCS and stretching exercises on these variables.
Design
Sixty volunteers will participate in two groups of 30 people with correct posture and slump posture. These people will be evaluated for the variables of study,It is cross-sectional study in first phase. To reduce mental fatigue symptoms in people with slump posture, stretching exercises and TDCS will be used. It is a quasi-exprimental study.
Settings and conduct
The study will be conducted in the laboratory of the Faculty of Rehabilitation of Tehran University of Medical Sciences. During 60 minutes of continuous typing, these people were evaluated for mental fatigue, task difficulty, kinematic behavior of the head, neck, trunk, and pelvis along with central indicators (quantitative electroencephalography) in the first and last three minutes. To reduce mental fatigue symptoms in people with slump posture, stretching exercises and transcortical stimulation were used in two separate sessions.
Participants/Inclusion and exclusion criteria
Age between 20 and 40 years old; craniovertebral angle more than 50 degrees and kyphosis between 20 and 40 degrees for the correct posture group and craniovertebral angle less than 50 degrees and kyphosis more than 40 degrees for the slump posture group; fluency in Persian language; computer typing experience; not taking any drugs affecting motor and cognitive function.
Intervention groups
TDCS on the F3 point and stretching exercises will be used as intervention in two separate sessions with an interval of one week for the slump posture group. The effect of these two interventions is compared with each other and also with the condition without intervention of this group
Comparison of the effects of transcranial direct current stimulation and stretching exercises on mental fatigue using electroencephalographic parameters in people with slump posture
Public title
Comparison of transcranial stimulation and stretching exercises on mental fatigue in slump posture
Purpose
Diagnostic
Inclusion/Exclusion criteria
Inclusion criteria:
Age between 20 and 40 years old
Not having visual impairments
Craniovertebral angle more than 50 degrees and kyphosis between 20 and 40 degrees for the correct posture group and craniovertebral angle less than 50 degrees and kyphosis more than 40 degrees for the slump posture group
Having at least a diploma
Fluency in Persian language
Computer typing experience and lack of ten-finger typing skills
No history of chronic or acute diseases such as neurological, cardiac or metabolic diseases
No history of mental illnesses
scoring 24 or higher on the Short Mental Status Examination (MMSE)
musculoskeletal discomfort less than 7.5 based on the visual analog scale, due to the prevention of its impact on cognitive function
no history of shoulder and spine surgery
No history of fractures or spinal diseases
Absence of obvious scoliosis
BMI less than 30 kg/m2
Not taking any drugs affecting motor and cognitive function
Not consuming stimulant drinks such as coffee and alcohol 48 hours before participating in the study
Exclusion criteria:
Unwillingness to continue the test or confusion and inability to continue the test.
Pregnancy
Age
From 20 years old to 40 years old
Gender
Both
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
60
Randomization (investigator's opinion)
N/A
Randomization description
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Crossover
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ethics Committee of Tehran university of medical science
Street address
Central office of TUMS, Ghods St., Keshavarz blvd., Tehran
City
Tehran
Province
Tehran
Postal code
1417613151
Approval date
2022-08-20, 1401/05/29
Ethics committee reference number
IR.TUMS.FNM.REC.1401.069
Health conditions studied
1
Description of health condition studied
Slump posture
ICD-10 code
R29.3
ICD-10 code description
Abnormal posture
Primary outcomes
1
Description
Mental fatigue
Timepoint
Before and after of typing
Method of measurement
visual analog scale-fatigue
2
Description
Musculoskeletal discomfort
Timepoint
Before and after typing
Method of measurement
visual analog scale
3
Description
Number of typing errors
Timepoint
After typing
Method of measurement
Counting by the examiner
4
Description
Typing speed
Timepoint
After typing
Method of measurement
It is calculated by the examiner as the number of words per minute
5
Description
Entropy of the head, neck, trunk and pelvis
Timepoint
The first and last three minutes of typing
Method of measurement
Marker and filming
6
Description
The relative power of the frequency spectrum
Timepoint
The first and last three minutes of typing
Method of measurement
Electroencephalography device
7
Description
ERD/ERS
Timepoint
The first and last three minutes of typing
Method of measurement
Loretta software
Secondary outcomes
empty
Intervention groups
1
Description
First intervention group: in the present study, stretching exercises for trunk, neck and upper limb muscles are selected and taught to people. In total, it takes 10 minutes to do the exercises, This intervention is for the slump posture group to do before typing in one session.The interval between each session is considered to be one week, and the order of people's attendance in these sessions is follows: It randomly.
Category
Treatment - Other
2
Description
Intervention group 2: Another intervention is the use of transcranial direct stimulation. In the current study, the NEUROSTIM2 device produced by Medina Medicine Company of Iran will be used to provide electrical stimulation. The intervention is carried out using 3 x 5 cm square carbon plate electrodes with wet sponge coating. According to previous studies, stimulation of the left posterior lateral prefrontal cortex improves cognitive functions such as decision making, attention and working memory. Therefore, to stimulate this area, the anode electrode is placed on the F3 point according to the international 10-20 system, and the cathode electrode is placed on the opposite supraorbital area. To reduce skin resistance, the desired area is cleaned with cotton and alcohol as much as possible. The intensity of the stimulation will be 2 mA and its duration will be 10 minutes. The current first increased during the first 30 seconds to reach 2 mA and this value is maintained during 10 minutes until the last 30 s,that it reduces to 0. During the application of the current and also after its completion, the physical and mental conditions of the patient will be checked and if any side effects or discomfort are reported, the application of the current will be stopped if necessary. People in the posture slump group receive it in one of the three sessions of participating in the study, before typing.
Category
Treatment - Other
Recruitment centers
1
Recruitment center
Name of recruitment center
Tehran university of medical science
Full name of responsible person
Zahra Abdollahzade
Street address
Biomechanics Laboratory, school of Rehabilitation, Tehran University of Medical Sciences, Pich Shemiran, Elkhebal St., Tehran
City
Tehran
Province
Tehran
Postal code
1148956111
Phone
+98 910 510 3845
Email
z-abdollahzade@razi.tums.ac.ir
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Dr. Mohammad Reza Hadian
Street address
Central office of TUMS, corner of Ghods st., Keshavarz blvd.,Tehran
City
Tehran
Province
Tehran
Postal code
1148956111
Phone
+98 21 7753 5132
Email
rehabilitation@tums.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Tehran University of Medical Sciences
Proportion provided by this source
100
Public or private sector
Public
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic
Person responsible for general inquiries
Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Zahra Abdollahzade
Position
PhD student
Latest degree
Master
Other areas of specialty/work
Physiotherapy
Street address
Darvazeh Shemiran, Enqelab St.,Tehran
City
Tehran
Province
Tehran
Postal code
11489-65111
Phone
+98 21 7753 3939
Fax
Email
z-abdollahzade@razi.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
Zahra Abdollahzade
Position
phd student
Latest degree
Master
Other areas of specialty/work
Physiotherapy
Street address
Darvazeh Shemiran, Enqelab St.,Tehran
City
Tehran
Province
Tehran
Postal code
11489-65111
Phone
+98 21 7753 3939
Fax
Email
z-abdollahzade@razi.tums.ac.ir
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Tehran University of Medical Sciences
Full name of responsible person
Zahra Abdollahzade
Position
phd student
Latest degree
Master
Other areas of specialty/work
Physiotherapy
Street address
Darvazeh Shemiran, Enqelab St.,Tehran
City
Tehran
Province
Tehran
Postal code
11489-65111
Phone
+98 21 7753 3939
Fax
Email
z-abdollahzade@razi.tums.ac.ir
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)
Undecided - It is not yet known if there will be a plan to make this available
Study Protocol
Undecided - It is not yet known if there will be a plan to make this available
Statistical Analysis Plan
Undecided - It is not yet known if there will be a plan to make this available
Informed Consent Form
Undecided - It is not yet known if there will be a plan to make this available
Clinical Study Report
Undecided - It is not yet known if there will be a plan to make this available
Analytic Code
Undecided - It is not yet known if there will be a plan to make this available