History
# Registration date Revision Id
3 2026-07-18, 1405/04/27 387220
2 2026-07-17, 1405/04/26 386903
1 2026-01-19, 1404/10/29 369880
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  • Protocol summary

    This study was conducted as a clinical trial involving 54 women aged 55-70 years. Participants were randomly and evenly assigned to two groups: Elastic band resistance training group and the control group. The Elastic band resistance training group underwent 8 weeks of training, with three 60-minute sessions per week. Hepatic Steatosis, ALT, AST, GGT, Insulin, Glucose, Irisin were assessed before and after the intervention. No blinding was applied.
    This study was conducted as a clinical trial involving 54 women aged 55-65 years. Participants were randomly and evenly assigned to two groups: Elastic band resistance training group and the control group. The Elastic band resistance training group underwent 8 weeks of training, with three 60-minute sessions per week. Hepatic Steatosis, ALT, AST, GGT, Insulin, Glucose, Irisin were assessed before and after the intervention. No blinding was applied.
    این مطالعه به صورت یک کارآزمایی بالینی روی 54 زن 55-70 سال انجام شد. شرکت کنندگان به صورت تصادفی و همسان به دو گروه تمرین مقاومتی با باند الاستیک و گروه کنترل تقسیم شدند. گروه تمرین مقاومتی با باند الاستیک به مدت ۱۲ هفته، هفته ای سه جلسه ۶۰ دقیقه ای تمرین کردند. پیش و پس از مداخله ارزیابی های کبد چرب، ALT، AST، انسولین، گلوکز، آیریزین انجام شد و کورسازی اعمال نشد.
    این مطالعه به صورت یک کارآزمایی بالینی روی 54 زن 55-65 سال انجام شد. شرکت کنندگان به صورت تصادفی و همسان به دو گروه تمرین مقاومتی با باند الاستیک و گروه کنترل تقسیم شدند. گروه تمرین مقاومتی با باند الاستیک به مدت ۱۲ هفته، هفته ای سه جلسه ۶۰ دقیقه ای تمرین کردند. پیش و پس از مداخله ارزیابی های کبد چرب، ALT، AST، انسولین، گلوکز، آیریزین انجام شد و کورسازی اعمال نشد.
    Inclusion Criteria: hepatic steatosis, body mass index between 40 and 50 kg/m², stable body weight (±3%) during the preceding three months, and no engagement in structured exercise training within the previous six months. Exclusion criteria: alcohol consumption, diabetes mellitus, hormone therapy, use of medications known to affect hepatic fat content or insulin sensitivity within the prior six months, and any musculoskeletal, cardiovascular, or neurological condition contraindicating participation in resistance exercise.
    Inclusion Criteria: hepatic steatosis, body mass index between 30 and 35 kg/m², stable body weight (±3%) during the preceding three months, and no engagement in structured exercise training within the previous six months. Exclusion criteria: alcohol consumption, diabetes mellitus, hormone therapy, use of medications known to affect hepatic fat content or insulin sensitivity within the prior six months, and any musculoskeletal, cardiovascular, or neurological condition contraindicating participation in resistance exercise.
    شرایط ورود: بیماری کبد چرب، شاخث توده بدن بین 40-50 کیلوگرم بر متر مربع، وزن ثابت (±3%) در طول سه ماه گذشته، عدم شرکت در برنامه تمرینی منظم در شش ماه گذشته. شرایط عدم ورود: مصرف الکل، بیماری دیابت، هورمون تراپی، مصرف داروهایی که بر کبد چرب و حساسیت انسولین موثر باشند در شش ماه گذشته، و هر گونه شرایط بیماری های اسکلتی عضلانی، قلبی عروقی، یا عصبی که بر ورزش مقاومتی افراداثر گذار باشند.
    شرایط ورود: بیماری کبد چرب، شاخص توده بدن بین 30-35 کیلوگرم بر متر مربع، وزن ثابت (±3%) در طول سه ماه گذشته، عدم شرکت در برنامه تمرینی منظم در شش ماه گذشته. شرایط عدم ورود: مصرف الکل، بیماری دیابت، هورمون تراپی، مصرف داروهایی که بر کبد چرب و حساسیت انسولین موثر باشند در شش ماه گذشته، و هر گونه شرایط بیماری های اسکلتی عضلانی، قلبی عروقی، یا عصبی که بر ورزش مقاومتی افراداثر گذار باشند.
  • General information

    Reason for Update (General): This update request is submitted to rectify a clerical error (data entry mistake) identified in the initial registration of the trial. A thorough cross-verification between the registered data and the final approved ethics protocol and study appendices has revealed discrepancies in two specific fields (age range and Body Mass Index). It is crucial to emphasize that the actual operational execution of the trial, statistical analyses, and outcome assessments were entirely based on the correct inclusion criteria as stipulated in the original approved protocol from the outset. Consequently, this amendment is pursued solely to harmonize the registry record with the actual clinical practice conducted and to ensure full compliance with the ethical protocol. This modification does not alter the core study design, pre-calculated statistical power, intervention methodology, or the risk-benefit assessment of the trial. All other inclusion/exclusion criteria and trial components remain strictly unchanged. Reason for Update (Specific Fields): Age Range: The initially recorded age limits were erroneously entered due to a typographical mistake during the data entry phase in the registration system. The correct age range, which was meticulously established based on the target population's demographic distribution, pharmacokinetic/pharmacodynamic curves, and disease-specific clinical criteria in the primary protocol, will be replaced accordingly. This correction accurately reflects the intended study population. Since the sample size calculations were originally performed based on this corrected range, this adjustment does not compromise the statistical integrity or scientific validity of the trial results. Body Mass Index (BMI): The entered BMI criterion contained a numerical mis-entry (input error) and did not align with the value specified in the approved protocol. The correct BMI range is strictly defined according to the pathophysiological characteristics of the study population and the safety margins related to drug distribution in adipose tissue. Updating this field is purely an administrative correction of the data entry error. It bears no impact on the actual screening process of participants—which adhered to the correct criteria from the beginning—nor does it affect the final data analysis or safety monitoring.
    Dear IRCT Team, First, we sincerely appreciate your valuable cooperation and for implementing the requested corrections in the clinical trial record. Upon reviewing the updated record, we noticed that the Body Mass Index (BMI) and age criterion in the Abstract section has not yet been updated. This discrepancy was due to an administrative data entry error during the initial registration and does not reflect any change in the approved protocol, eligibility criteria, or study population. We sincerely apologize for this oversight and kindly request, if possible, that the Abstract section also be updated to ensure full consistency between the registry record, the approved protocol, and the manuscript. Thank you very much for your kind support and cooperation.
    علت درخواست بروزرسانی (به طور کلی): این درخواست با هدف اصلاح خطای انسانی (ناشی از ورود اشتباه داده‌ها) در مرحله ثبت اولیه کارآزمایی ارائه می‌گردد. بررسی تطبیقی انجام‌شده بین اطلاعات درج‌شده در سامانه ثبت کارآزمایی و نسخه نهایی پروتکل مصوب کمیته اخلاق و ضمائم مطالعه، حاکی از مغایرت در دو فیلد مشخص (دامنه سنی و شاخص توده بدنی) است. شایان ذکر است که فرآیند اجرایی مطالعه، آنالیزهای آماری و ارزیابی پیامدها از ابتدا بر اساس معیارهای ورود صحیح (مذکور در پروتکل اصلی) پایه‌ریزی و انجام شده‌اند؛ بنابراین، درخواست فعلی صرفاً در راستای تطبیق مستندات ثبت‌شده با واقعیت بالینی اجراشده و رعایت انطباق کامل با پروتکل اخلاقی است و هیچ تغییری در طراحی اصلی، توان آماری محاسبه‌شده، روش مداخله یا ارزیابی ریسک‌به‌سود مطالعه ایجاد نخواهد کرد. سایر معیارهای ورود و خروج و کلیه اجزای دیگر کارآزمایی دقیقاً مطابق با نسخه پیشین و پروتکل انجام‌شده باقی می‌مانند. علت بروزرسانی فیلدهای اختصاصی: دامنه سنی (Age Range): عدد ثبت‌شده اولیه برای کران پایین و/یا بالای سنی، ناشی از یک خطای تایپی (Typographical Error) هنگام ورود داده‌ها در سامانه بوده است. دامنه سنی صحیح که بر اساس توزیع جمعیت هدف، منحنی فارماکوکینتیک و معیارهای بالینی اختصاصی بیماری در پروتکل اصلی تدوین گردیده، در این بروزرسانی جایگزین می‌شود. اصلاح این آیتم، جامعه آماری واقعی مدنظر محققین را بازتاب داده و از آنجایی که محاسبات حجم نمونه بر اساس همین دامنه تصحیح‌شده در گذشته انجام گرفته است، خللی در اعتبار علمی نتایج وارد نمی‌آید. شاخص توده بدنی (BMI): مقدار درج‌شده برای شاخص توده بدنی به دلیل اشتباه در ثبت عدد (Mis-entry of numeric value) با مقدار تعیین‌شده در پروتکل مصوب مطابقت نداشته است. محدوده BMI صحیح، مبتنی بر شاخص‌های فیزیولوژیک جمعیت تحت مطالعه و ملاحظات ایمنی مرتبط با توزیع دارو در بافت‌های چربی بدن تعیین شده است. به‌روزرسانی این فیلد صرفاً جهت تصحیح خطای ورود داده‌ها انجام می‌شود و تأثیری بر فرآیند غربالگری واقعی شرکت‌کنندگان (که از ابتدا طبق معیار صحیح انجام شده است) یا تحلیل نهایی داده‌ها ندارد.
    با سلام و احترام، ابتدا از همکاری ارزشمند شما و انجام اصلاحات درخواست‌شده در رکورد کارآزمایی بالینی صمیمانه تشکر می‌کنیم. با بررسی مجدد اطلاعات، متوجه شدیم که معیار شاخص توده بدنی (BMI) و سن در بخش چکیده (Abstract) هنوز به‌روزرسانی نشده است. این مغایرت ناشی از یک خطای اداری در زمان ثبت اولیه اطلاعات بوده و هیچ تغییری در پروتکل مصوب، معیارهای ورود یا جمعیت مورد مطالعه ایجاد نکرده است. ضمن عذرخواهی فراوان، خواهشمندیم در صورت امکان بخش چکیده نیز اصلاح شود تا اطلاعات ثبت‌شده کاملاً با پروتکل و مقاله هماهنگ باشد. از همکاری و حمایت ارزشمند شما سپاسگزاریم.

Protocol summary

Study aim
The aim of this study is to investigate the effect of elastic band resistance training on irisin, liver enzymes, hepatic steatosis and metabolic outcomes in obese postmenopausal women with MASLD
Design
Two-arm randomized controlled trial (Elastic band resistance training and control) with pre- and post-intervention assessments.
Settings and conduct
This study was conducted as a clinical trial involving 54 women aged 55-65 years. Participants were randomly and evenly assigned to two groups: Elastic band resistance training group and the control group. The Elastic band resistance training group underwent 8 weeks of training, with three 60-minute sessions per week. Hepatic Steatosis, ALT, AST, GGT, Insulin, Glucose, Irisin were assessed before and after the intervention. No blinding was applied.
Participants/Inclusion and exclusion criteria
Inclusion Criteria: hepatic steatosis, body mass index between 30 and 35 kg/m², stable body weight (±3%) during the preceding three months, and no engagement in structured exercise training within the previous six months. Exclusion criteria: alcohol consumption, diabetes mellitus, hormone therapy, use of medications known to affect hepatic fat content or insulin sensitivity within the prior six months, and any musculoskeletal, cardiovascular, or neurological condition contraindicating participation in resistance exercise.
Intervention groups
Elastic band resistance training group and the control group. Elastic band resistance training group completed a supervised elastic band resistance training program three times per week for eight consecutive weeks, yielding a total of 24 sessions, while the control group did not participate in any physical activity.
Main outcome variables
Hepatic Steatosis, ALT, AST, GGT, Insulin, Glucose, Irisin

General information

Reason for update
Dear IRCT Team, First, we sincerely appreciate your valuable cooperation and for implementing the requested corrections in the clinical trial record. Upon reviewing the updated record, we noticed that the Body Mass Index (BMI) and age criterion in the Abstract section has not yet been updated. This discrepancy was due to an administrative data entry error during the initial registration and does not reflect any change in the approved protocol, eligibility criteria, or study population. We sincerely apologize for this oversight and kindly request, if possible, that the Abstract section also be updated to ensure full consistency between the registry record, the approved protocol, and the manuscript. Thank you very much for your kind support and cooperation.
Acronym
IRCT registration information
IRCT registration number: IRCT20241205063953N4
Registration date: 2026-01-19, 1404/10/29
Registration timing: prospective

Last update: 2026-07-19, 1405/04/28
Update count: 2
Registration date
2026-01-19, 1404/10/29
Registrant information
Name
akram jafari
Name of organization / entity
Country
Iran (Islamic Republic of)
Phone
+98 912 547 9267
Email address
jafari.akm@gmail.com
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2026-01-25, 1404/11/05
Expected recruitment end date
2026-03-25, 1405/01/05
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Effect of Elastic Band Resistance Training on irisin, liver enzymes, Hepatic Steatosis and Metabolic Outcomes in Postmenopausal Women with MASLD
Public title
Elastic Band Resistance Training and liver disease in Postmenopausal Women
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria:
Body mass index between 30 and 35 kg/m² Stable body weight (±3%) during the preceding three months No engagement in structured exercise training within the previous six months.
Exclusion criteria:
Age
From 55 years old to 65 years old
Gender
Female
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size: 54
Randomization (investigator's opinion)
Randomized
Randomization description
In this study, simple randomization was used to assign participants to study groups. The randomization unit was individual, meaning that each person was independently assigned to one of the two groups: elastic band resistance training group (n = 27) or the control group (n = 27). The randomization tool was EXECL software which generated the random sequence before the study began to prevent allocation bias. Allocation concealment was ensured using sealed and numbered opaque envelopes containing the group assignment for each participant. These envelopes were opened only after a participant's eligibility was confirmed by an independent researcher not involved in the randomization process. Stratified randomization was applied based on age to ensure balance across groups for these key variables.
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Islamic Azad University Shahrekord Branch
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Shahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8818630002
Approval date
2020-02-08, 1398/11/19
Ethics committee reference number
IR.IAU.SHK.REC.1399.031

Health conditions studied

1

Description of health condition studied
Liver diseases
ICD-10 code
K75.81
ICD-10 code description
Nonalcoholic steatohepatitis (NASH)

Primary outcomes

1

Description
Hepatic Steatosis
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
Method for quantifying liver fat content (CAP)

2

Description
ALT
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
ALT levels were measured using a commercial kit (Pars Azmoon, Tehran, Iran) with enzymatic methods.

3

Description
AST
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
AST levels were measured using a commercial kit (Pars Azmoon, Tehran, Iran) with enzymatic methods.

4

Description
Irisin
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
Measured using the enzyme-linked immunosorbent assay (ELISA) method with an enzyme immunoassay kit (Phoenix Pharmaceuticals®, Burlingame, USA)

5

Description
Insulin
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
Insulin levels were measured using the enzyme-linked immunosorbent assay (ELISA) method and equipment (ZellBio, Ulm, Germany)

6

Description
Glucose
Timepoint
48 hours before and after 8 weeks of research
Method of measurement
Glucose levels were measured using a commercial kit (Pars Azmoon, Tehran, Iran) with photometric and enzymatic methods.

Secondary outcomes

empty

Intervention groups

1

Description
Intervention group: Elastic band resistance training group. This group practiced elastic band resistance training under the supervision of instructors for 8weeks, 3 sessions per week, 60 minutes per session.
Category
Treatment - Other

2

Description
Control group: No sports activities were involved during the research.
Category
Other

Recruitment centers

1

Recruitment center
Name of recruitment center
Islamic Azad University Shahrekord Branch
Full name of responsible person
Mehrdad Yadegari Dehkordi
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Shahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8818630003
Phone
+98 912 547 9267
Email
Jafari.akm@gmail.com

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Islamic Azad University
Full name of responsible person
Mehrdad Yadegari Dehkordi
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Shahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8818630003
Phone
+98 912 547 9267
Email
Jafari.akm@gmail.com
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Islamic Azad University
Proportion provided by this source
100
Public or private sector
Private
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
Islamic Azad University
Full name of responsible person
َAkram Jafari
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Sport physiology
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Shahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8818630003
Phone
+98 912 547 9267
Email
Jafari.akm@gmail.com

Person responsible for scientific inquiries

Contact
Name of organization / entity
Islamic Azad University
Full name of responsible person
Akram Jafari
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Sport Physoilogy
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Shahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8817630003
Phone
+98 912 547 9267
Email
Jafari.akm@gmail.com

Person responsible for updating data

Contact
Name of organization / entity
Islamic Azad University
Full name of responsible person
Akram Jafari
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Sport physiology
Street address
Rahmatieh, Islamic Azad University Shahrekord Branch
City
Sahrekord
Province
Chahar-Mahal-va-Bakhtiari
Postal code
8817630003
Phone
+98 912 547 9267
Email
Jafari.akm@gmail.com

Sharing plan

Deidentified Individual Participant Data Set (IPD)
Yes - There is a plan to make this available
Study Protocol
Yes - There is a plan to make this available
Statistical Analysis Plan
Yes - There is a plan to make this available
Informed Consent Form
Yes - There is a plan to make this available
Clinical Study Report
Yes - There is a plan to make this available
Analytic Code
Yes - There is a plan to make this available
Data Dictionary
Yes - There is a plan to make this available
Title and more details about the data/document
All data without participant names
When the data will become available and for how long
6 months after publication of the article
To whom data/document is available
University students and professors
Under which criteria data/document could be used
For future research
From where data/document is obtainable
To the researchers of this study
What processes are involved for a request to access data/document
By email to researchers
Comments
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