Intervention group: fatigue of plantar flexor: fatigue is induced with 60% maximum voluntary contraction, position of protocol is long sitting with 90 degree hip flexion, Fatigue of back extensor: fatigue is induced with 60% maximum voluntary contraction, position of protocol is sitting with 135 degree hip flexion and 90 degree knee flexion, Fatigue of knee extensor: fatigue is induced with 60% maximum voluntary contraction, position of protocol is sitting with 90 degree of knee flexion, Fatigue of neck extensor: fatigue is induced with 60% maximum voluntary contraction, position of protocol is sitting with head and neck in upright position. After each fatigue exercise the participants will stand on the force plate.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT201010032391N3
Registration date:2010-11-20, 1389/08/29
Registration timing:registered_while_recruiting
Last update:
Update count:0
Registration date
2010-11-20, 1389/08/29
Registrant information
Name
Zahra Rojhani Shirazi
Name of organization / entity
Shiraz University of Medical Sciences, School of Rehabilitation Sciences
Country
Iran (Islamic Republic of)
Phone
+98 71 1627 1552
Email address
rojhaniz@sums.ac.ir
Recruitment status
Recruitment complete
Funding source
Vice Chancellor for Research Affairs
Expected recruitment start date
2010-09-23, 1389/07/01
Expected recruitment end date
2010-11-22, 1389/09/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
The effect of different muscle fatigue on postural control
Public title
The effect of muscular fatigue on postural control
Purpose
Diagnostic
Inclusion/Exclusion criteria
Inclusion criteria: Healthy female students of faculty of rehabilitation, age 20-30 years old
Exclusion criteria: History of pain or trauma in lower extremity and vertebral column during a year prior to the study, neurological, vestibular or visual disorders, professional exercise activities
Age
From 20 years old to 30 years old
Gender
Female
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
10
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
Shiraz University of Medical Scirnces
Street address
Shiraz University of Medical Sciences-Karimkhan st.
City
Shiraz
Postal code
Approval date
2010-09-23, 1389/07/01
Ethics committee reference number
31309/4/9/پ/89
Health conditions studied
1
Description of health condition studied
balance and postural control
ICD-10 code
G98
ICD-10 code description
Diseases of the nervous system
Primary outcomes
1
Description
Displacement of center of mass
Timepoint
Just after fatigue
Method of measurement
Camera and Matlab software
2
Description
Speed of center of mass
Timepoint
Just after fatigue
Method of measurement
Camera and Matlab software
3
Description
Displacement of center of pressure
Timepoint
Just after fatigue
Method of measurement
Force plate and Matlab software
4
Description
Speed of center of pressure
Timepoint
Just after fatigue
Method of measurement
Force plate and Matlab software
Secondary outcomes
empty
Intervention groups
1
Description
The aim of this cross over study is to compare the effect of muscular fatigue of plantar flexor of ankle joint, knee extensor, back extensor, and neck extensor on postural control. In this study 10 healthy female students of faculty of rehabilitation, aged 20-30 years, will be recruited. The intervention under study is fatigue of plantar flexor of ankle joint, knee extensor, back extensor and neck extensor during 4 sessions with 2 days interval. After each fatigue protocol, the participants stand on force plate and variables of velocity and displacement of center of gravity and center of pressure will be measured. As controls, Participants stand again on force plate without fatigue at another session and the outcome variables will be measured.
Category
Rehabilitation
2
Description
In control-Internention2: Subject stands on force plate without muscle fatigue.
Category
Rehabilitation
Recruitment centers
1
Recruitment center
Name of recruitment center
Faculty of Rehabilitation
Full name of responsible person
Street address
City
Shiraz
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Shiraz University of Medical Science
Full name of responsible person
Zahra Rojhani Shirazi
Street address
Faculty of Rehabilitation-Chamran blv.
City
Shiraz
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Shiraz University of Medical Science
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
Shiraz University of Medical Sciences
Full name of responsible person
Zahra Rojhani Shirazi
Position
Assistant Professor
Other areas of specialty/work
Street address
Faculty of Rehabilitation-Chamran blv.
City
Shiraz
Postal code
Phone
+98 71 1627 1552
Fax
Email
rojhaniz@sums.ac.ir
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
Shiraz University of Medical Sciences
Full name of responsible person
Zahra Rojhani Shirazi
Position
Assistant Professor
Other areas of specialty/work
Street address
Faculty of Rehabilitation-Chamran blv.
City
Shiraz
Postal code
Phone
+98 71 1627 1552
Fax
Email
rojhaniz@sums.ac.ir
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Shiraz University of Medical Sciences
Full name of responsible person
zahra Rojhani Shirazi
Position
Other areas of specialty/work
Street address
City
Postal code
Phone
Fax
Email
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)