The aim of the present study was to investigate the effect of eight weeks of green tea supplementation and weight training on cardiovascular risk factors in overweight men. Methods: 30 overweight male with a body mass index between 30-25 (kg/m2), were randomly divided to three groups of 10 subjects: 1. Weight training and supplementation with green tea (supplement), 2. Weight training (exercise) and 3. control group. Weight training was consisting of three sessions per week with an intensity of 60% - 80% of one repetition maximum for 8 weeks. Green tea was also used to supplement the amount of 6 grams per day, in three equal portions. Inclusion criteria included: No history of chronic disease; orthopedic problems; smoking; and taking antioxidant supplements. Exclusion criteria included: Absence of more than three sessions during practice; gastrointestinal distress and physical injuries. Body compositions of all subjects were assessed at pre-test and post-test using calipers. Venous blood samples, were used in the pre-test and post-test for analysis of total cholesterol, HDL, LDL, triglycerides and fibrinogen.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT2013080414267N1
Registration date:2014-01-20, 1392/10/30
Registration timing:retrospective
Last update:
Update count:0
Registration date
2014-01-20, 1392/10/30
Registrant information
Name
Worya Tahmasebi
Name of organization / entity
Razi university
Country
Iran (Islamic Republic of)
Phone
+98 83 3427 4583
Email address
w_tahmasebi@sbu.ac.ir
Recruitment status
Recruitment complete
Funding source
Investigator
Expected recruitment start date
2013-04-09, 1392/01/20
Expected recruitment end date
2013-06-10, 1392/03/20
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Changes in cardiovascular risk factors of overweight men after eight weeks supplementation of green tea and weight training
Public title
Effect of eight weeks of green tea supplementation on cardiovascular risk factors in overweight individuals
Purpose
Prevention
Inclusion/Exclusion criteria
Inclusion criteria: Overweight men with body mass index between 25-30 kg/m2; age range 18-27 years; no history of chronic disease; orthopedic problems; smoking and taking antioxidant supplements.
Exclusion criteria: More than three absences during a training session; gastrointestinal discomfort and physical injury.
Age
From 18 years old to 27 years old
Gender
Male
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
30
Randomization (investigator's opinion)
Randomized
Randomization description
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Parallel
Other design features
30 volunteers were randomly divided (lucky draw) to three groups of 10 subjects (10 subjects in each group).
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Ethics committee of University of Kurdistan
Street address
University of Kurdistan, Pasdaran Street.
City
Sanandaj
Postal code
Approval date
2012-12-27, 1391/10/07
Ethics committee reference number
3/2684
Health conditions studied
1
Description of health condition studied
Cardiovascular disease
ICD-10 code
I25.0
ICD-10 code description
Atherosclerotic cardiovascular disease
Primary outcomes
1
Description
Cholesterol, TG, HDL and LDL
Timepoint
Before and after intervention
Method of measurement
Cholesterol, triglycerides, HDL and LDL were measured with spectrophotometer method using kits from Pars Azmun company Iran.
2
Description
Fibrinogen
Timepoint
Before and after intervention
Method of measurement
Fibrinogen concentration was measured with thrombin clotting time method using sigma kit from Kyowl Medex company, Japan.
Secondary outcomes
empty
Intervention groups
1
Description
Intervention group 1: Weight training and supplementation with green tea: 10 subjects did weight training for 8 weeks, 3 sessions per week, with an intensity of 60-80% of one repetition maximum. In addition, subjects who consumed a daily 6 grams of dried leaf powder, green tea (2 g powder of dried green tea leaves in 200 ml water at 80°C) for one hour before meals at 3 times (morning, afternoon and evening). Green tea was in bag (2 g) and manufactured in the Lahigan Tea Company, Iran.
Category
Prevention
2
Description
Intervention groups 2: Weight training, 10 participants did resistance training for 8 weeks and 3 sessions per week, with an intensity of 60-80% of one repetition maximum.
Category
Prevention
3
Description
Control group: 10 subjects did no exercise and supplementation and only had to do routine activities.
Category
Prevention
Recruitment centers
1
Recruitment center
Name of recruitment center
University of Kurdistan
Full name of responsible person
Mohammadzadeh Farid, MS, Instructor
Street address
University of Kurdistan, Pasdaran St., Sanandaj, Kurdistan state
City
Sanandaj
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Vice Chancellor for research of University of Kurdistan
Full name of responsible person
Abdollah Salimi
Street address
University of Kurdistan, Pasdaran Street
City
Sanandaj
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Vice Chancellor for research of University of Kurdistan
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
University of Kurdistan
Full name of responsible person
Farhad Ahmadi Kani Golzar
Position
MA, Lecturer
Other areas of specialty/work
Street address
University of Kurdistan, Pasdaran Street.
City
Sanandaj
Postal code
Phone
+98 87 1351 4346
Fax
Email
farhadahmadi19@yahoo.com
Web page address
Person responsible for scientific inquiries
Contact
Name of organization / entity
University of Kurdistan
Full name of responsible person
Farhad Ahmadi Kani Golzar
Position
Master in Exercise Physiology
Other areas of specialty/work
Street address
University of Kurdistan, Pasdaran Street
City
Sanandaj
Postal code
Phone
+98 87 1351 4346
Fax
Email
farhadahmadi19@yahoo.com
Web page address
Person responsible for updating data
Contact
Name of organization / entity
University of Kurdistan
Full name of responsible person
Farhad Ahmadi Kani Golzar
Position
Master in Exercise Physiology, Lecturer.
Other areas of specialty/work
Street address
University of Kurdistan, Pasdaran Street
City
Sanandaj
Postal code
Phone
+98 35 14346
Fax
Email
farhadahmadi19@yahoo.com
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)