Protocol summary

Study aim
Comparison of the effect of energy-matched continuous vs high intensity interval training with weight-loss diet on metabolic indices and arterial stiffness in patients with type-2 diabetes
Design
A clinical trial including 2 experimental and a control group with parallel design and without blinding in which participants will be randomly assigned to study groups.
Settings and conduct
This study will be conducted by joint cooperation of Shahrood University of Technology and Shahrood University of Medical Sciences, in which diabetic patients with medical records will participate and receive relevant interventions for 12 weeks.
Participants/Inclusion and exclusion criteria
Inclusion criteria: History of type-2 diabetes over 5 years, glycosylated hemoglobin (Hb1Ac) over 6.5%, fasting blood glucose over 126 mg/dl, inactive lifestyle and body mass index over 25 kg/m2. Exclusion criteria: having weight-loss diet, severe diabetic complications like foot ulcer, not permitted for exercise.
Intervention groups
Experimental group 1, continuous training on treadmill for 12 weeks, 3 session pre week and 36 sessions in total and experimental group 2, interval training on treadmill for 12 weeks, 3 session pre week and 36 sessions in total.
Main outcome variables
Glycosylated hemoglobin (HbA1c); systolic blood pressure; Cardio-ankle vascular index (CAVI); Weight; body fat percentage

General information

Reason for update
Acronym
IRCT registration information
IRCT registration number: IRCT20170120032066N5
Registration date: 2023-05-31, 1402/03/10
Registration timing: prospective

Last update: 2023-05-31, 1402/03/10
Update count: 0
Registration date
2023-05-31, 1402/03/10
Registrant information
Name
Farhad Gholami
Name of organization / entity
Shahrood University of Technology
Country
Iran (Islamic Republic of)
Phone
+98 41332395900
Email address
gholami-fa@shahroodut.ac.ir
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2023-06-20, 1402/03/30
Expected recruitment end date
2023-07-06, 1402/04/15
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Comparison of the effect of energy-matched continuous vs high-intensity interval training with weight-loss diet on metabolic indices and arterial stiffness in patients with type-2 diabetes
Public title
Effect of energy-matched continuous vs interval training in type-2 diabetes
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria:
History of type-2 diabetes over 5 years Glycosylated hemoglobin (Hb1Ac) over 6.5% Fasting blood glucose over 126 mg/dl Inactive lifestyle Body mass index over 25 kg/m2
Exclusion criteria:
Having weight-loss diet Severe diabetic complications like foot ulcer Not permitted for exercise
Age
From 18 years old to 55 years old
Gender
Both
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size: 58
Randomization (investigator's opinion)
Randomized
Randomization description
Participants will be allocated to continuous exercise, interval exercise and control groups with 1:1:1 ratio. Participants will be classified based on BMI and HbA1c level to ensure inter-group homogeneity and stratified blocked randomization with block size of 4-6 will be applied. Sequencing using table of random numbers will be generated by a blind assistant to ensure allocation concealment.
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
Ethics committer of Shahrood University of Technology
Street address
Shahrood University of Technology, 7-Tir Square
City
Shahrood
Province
Semnan
Postal code
3619995161
Approval date
2023-05-13, 1402/02/23
Ethics committee reference number
IR.SHAHROODUT.REC.1402.002

Health conditions studied

1

Description of health condition studied
Type-2 diabetes
ICD-10 code
E11
ICD-10 code description
Type 2 diabetes mellitus

Primary outcomes

1

Description
Glycosylated hemoglobin (HbA1c)
Timepoint
Measurement of glycosylated hemoglobin (HbA1c) before and after 12 weeks intervention
Method of measurement
Using a commercial kit through enzymatic method

2

Description
systolic blood pressure
Timepoint
Measurement of systolic blood pressure before and after 12 weeks intervention
Method of measurement
Digital sphygmomanometer

3

Description
Cardio-ankle vascular index (CAVI)
Timepoint
Measurement of Cardio-ankle vascular index (CAVI) before and after 12 weeks intervention
Method of measurement
Arterial stiffness assessment device VaSera VS-2000 (Fukuda Denshi, Japan)

4

Description
Weight
Timepoint
Measurement of weight before and after 12 weeks intervention
Method of measurement
Using digital scale

5

Description
Body fat percentage
Timepoint
Measurement of body fat percentage before and after 12 weeks intervention
Method of measurement
Bioempedance method by body composition analyzer InBody230

Secondary outcomes

1

Description
Fasting blood glucose
Timepoint
Measurement of fasting blood glucose before and after 12 weeks intervention
Method of measurement
Enzymatic calorimetry

2

Description
2 hours postprandial glucose
Timepoint
Measurement of 2 hours postprandial glucose before and after 12 weeks intervention
Method of measurement
Enzymatic calorimetry

3

Description
Ankle-brachial index (ABI)
Timepoint
Measurement of ankle-brachial index before and after 12 weeks intervention
Method of measurement
Arterial stiffness assessment device VaSera VS-2000 (Fukuda Denshi, Japan)

Intervention groups

1

Description
Intervention group: continuous exercise training and calorie restriction over 12 weeks
Category
Treatment - Other

2

Description
Intervention group: interval exercise training and calorie restriction over 12 weeks
Category
Treatment - Other

3

Description
Control group: habitual daily routine
Category
Other

Recruitment centers

1

Recruitment center
Name of recruitment center
پلی کلینیک تخصصی و فوق تخصصی دانشگاه علوم پزشکی شاهرود
Full name of responsible person
خانم علیزاده
Street address
خیابان امام، میدان شفا
City
Shahrood
Province
Semnan
Postal code
۳۶۱۴۷-۷۳۹۴۳
Phone
+98 23 3239 5054
Email
info@shmu.ac.ir

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Shahrood University of Technology
Full name of responsible person
Dr. Hamid Hasanpour
Street address
Shahrood University of Technology., 7-Tir Square
City
Shahrood
Province
Semnan
Postal code
3619995161
Phone
+98 23 3239 2204
Email
info@shahroodut.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Shahrood University of Technology
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
Shahrood University of Technology
Full name of responsible person
Farhad Gholami
Position
Associate professor
Latest degree
Ph.D.
Other areas of specialty/work
Exercise Physiology
Street address
Shahrood University of Technology, 7-Tir Square
City
Shahrood
Province
Semnan
Postal code
3619995161
Phone
+98 23 3239 5900
Email
gholami-fa@shahroodut.ac.ir

Person responsible for scientific inquiries

Contact
Name of organization / entity
Shahrood University of Technology
Full name of responsible person
Farhad Gholami
Position
Associate professor
Latest degree
Ph.D.
Other areas of specialty/work
Exercise Physiology
Street address
Shahrood University of Technology, 7-Tir Square
City
Shahrood
Province
Semnan
Postal code
3619995161
Phone
+98 23 3239 5900
Email
gholami-fa@shahroodut.ac.ir

Person responsible for updating data

Contact
Name of organization / entity
Shahrood University of Technology
Full name of responsible person
Farhad Gholami
Position
Associate professor
Latest degree
Ph.D.
Other areas of specialty/work
Exercise physiology
Street address
Shahrood University of Technology, 7-Tir Square
City
Shahrood
Province
Semnan
Postal code
3619995161
Phone
+98 23 3239 5900
Email
gholami-fa@shahroodut.ac.ir

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
Not applicable
Data Dictionary
Not applicable
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