The effect of low glycemic index diet on body composition and fatigue factors in amateur strength athletes
Design
A clinical trial with a control group, with parallel groups, a blind strain, randomized, on 38 athletes, was used to randomize the randomized block allocation of the RAS software.
Settings and conduct
This study was conducted on strength athletes in bodybuilding in one of the clubs in Yazd city; The athletes were explained how to conduct the study and the study process, and a guide file was provided to all the athletes, which included the items that should not be used in their diet in the case group, and the study process including blood tests, measurements in the control group. The anthropometric measurements, the start and end time of the study were explained.
Participants/Inclusion and exclusion criteria
People who wish to enter the study must be in good health, between 20 and 45 years old; If they are professional athletes and use antioxidant supplements, they are not allowed to enter.
Intervention groups
In this study, we measure the effect of removing foods with a high glycemic index from the diet of strength athletes on body composition and fatigue factors.
The effect of low glycemic index diet on body composition and fatigue in amateur strength athletes
Public title
Effect of low glycemic index diet on body composition and fatigue
Purpose
Supportive
Inclusion/Exclusion criteria
Inclusion criteria:
. Tendency to participate in the study
. Amateur athletes
. Age between 20-45 years
. Having perfect physical health
. Not using antioxidant supplements in the last month
Exclusion criteria:
Using hormones and steroid drugs
Using sports supplements to increase strength and energy
Age
From 20 years old to 45 years old
Gender
Male
Phase
N/A
Groups that have been masked
Investigator
Outcome assessor
Data analyser
Sample size
Target sample size:
38
Actual sample size reached:
37
Randomization (investigator's opinion)
Randomized
Randomization description
The people participating in the study were divided into 2 groups of case (receiver of diet with low glycemic index) and control (regular diet) by random block allocation method and using RAS software, and followed the respective diet for 4 weeks. People who must follow a low glycemic index diet are given a list of prohibited foods during this period.
Blinding (investigator's opinion)
Single blinded
Blinding description
The participants in this study were in a separate group; Both groups were given a file, the case group received a diet and the control group continued with their normal diet and only the study process was explained from beginning to end.
Placebo
Not used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ethics Committee of Qazvin University of Medical Sciences
Street address
Qazvin University of medical sciences- Shahid Bahonar Boulevard- Qazvin
City
Qazvin
Province
Qazvin
Postal code
15315-34199
Approval date
2023-11-12, 1402/08/21
Ethics committee reference number
IR.QUMS.REC.1402.216
Health conditions studied
1
Description of health condition studied
Body composition-fatigue factors
ICD-10 code
ICD-10 code description
Primary outcomes
1
Description
Body Composition
Timepoint
At the beginning of the study and 28 days after the start of the study.
Method of measurement
Body َAnalysis device
2
Description
Fatigue factors: AST, LDH
Timepoint
At the beginning of the study and 28 days after the start of the study.
Method of measurement
Blood test.
Secondary outcomes
1
Description
Fat mass
Timepoint
ََAt the beginning and 28 days later at the end of the study.
Method of measurement
Inbody 270
2
Description
Fat percentage
Timepoint
At the beginning and 28 days later at the end of the study.
Method of measurement
Inbody 270
3
Description
Skeletal muscle mass
Timepoint
at the beginning and 28 days later at the end of the study
Method of measurement
Inbody 270
4
Description
Weight
Timepoint
At the beginning and 28 days later at the end of the study
Method of measurement
Scale with an accuracy of 50 grams
5
Description
BMI
Timepoint
At the beginning and 28 days later at the end of the study
Method of measurement
Ratio of weight to height to exponentiation 2
6
Description
Abdominal circumference
Timepoint
At the beginning and 28 days later at the end of the study
Method of measurement
Meter
7
Description
hips circumference
Timepoint
At the beginning and 28 days later at the end of the study
Method of measurement
Meter
Intervention groups
1
Description
Intervention group: The intervention group is fully justified at the beginning of the study process and a consent form is obtained; At first, a blood sample will be taken from them and an analysis and anthropometric measurements will be performed. Finally, the study will be repeated after 28 days. Food record sheets will also be given, which record 3days at the beginning, middle and end of the study. Along with strength training, foods with a high glycemic index, whose list was given to the intervention group, are removed from their diet.
Category
Lifestyle
2
Description
Control group: The control group is fully justified in the beginning of the study process and a consent form is taken; At first, a blood sample will be taken from them and an analysis and anthropometric measurements will be performed. Finally, the study will be repeated after 28 days. Food record sheets will also be given, which record 3days at the beginning, middle and end of the 3-day study.
Category
Lifestyle
Recruitment centers
1
Recruitment center
Name of recruitment center
Qazvin university of medical sciences
Full name of responsible person
Mahdi Samavat
Street address
Qazvin University of medical sciences- Shahid Bahonar Boulevard- Qazvin
City
Qazvin
Province
Qazvin
Postal code
15315-34199
Phone
+98 28 3333 6001
Email
info@qums.ac.ir
Web page address
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Qazvin University of Medical Sciences
Full name of responsible person
Dr Hossein Khadem Haghighian
Street address
Research and Technology Vice-Chancellor, 1st Branch, Maudet Alley, Shahid Beheshti Blvd, Qazvin
City
Qazvin
Province
Qazvin
Postal code
3415613911
Phone
+98 28 3335 0056
Email
researchdpt@qums.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Qazvin 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
Qazvin University of Medical Sciences
Full name of responsible person
Mahdi Samavat
Position
Student
Latest degree
Bachelor
Other areas of specialty/work
Nutrition
Street address
Shahid Salmani St.- North Nawab St.-Qazvin
City
Qazvin
Province
Qazvin
Postal code
3419915315
Phone
+98 28 3333 6001
Email
Mahdisamavat3125@gmail.com
Person responsible for scientific inquiries
Contact
Name of organization / entity
Qazvin University of Medical Sciences
Full name of responsible person
Mahdi Samavat
Position
Student
Latest degree
Bachelor
Other areas of specialty/work
Nutrition
Street address
Shahid Salmani St.- North Nawab St. - Qazvin
City
Qazvin
Province
Qazvin
Postal code
34199-15315
Phone
+98 28 3333 6001
Email
Mahdisamavat3125@gmail.com
Person responsible for updating data
Contact
Name of organization / entity
Qazvin University of Medical Sciences
Full name of responsible person
Mahdi Samavat
Position
Student
Latest degree
Bachelor
Other areas of specialty/work
Nutrition
Street address
Shahid Salmani St.- North Nawab St. - Qazvin
City
Qazvin
Province
Qazvin
Postal code
34199-15315
Phone
+98 28 3333 6001
Email
Mahdisamavat3125@gmail.com
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
Yes - There is 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
Data Dictionary
Undecided - It is not yet known if there will be a plan to make this available
Title and more details about the data/document
There is no further information.
When the data will become available and for how long
There is no further information.
To whom data/document is available
There is no further information.
Under which criteria data/document could be used
There is no further information.
From where data/document is obtainable
There is no further information.
What processes are involved for a request to access data/document