The effect of two resistance training protocols with different intensities on muscle hypertrophy and hormonal responses in track and field athletes
Design
In a randomized clinical trial design, with parallel group, 45 track and field athletes are randomly assigned to one of three high-intensity, low-intensity or control groups. The measurements will be performed in five steps including pre-test, after one training session, after 12-week training and following four weeks of detraining.
Settings and conduct
This study will be conducted in the city of Garmian in Iraq Kurdistan. After installing the announcement at the university of Garmian, subjects will be selected among the eligible individuals based on inclusion criteria.
Participants/Inclusion and exclusion criteria
Young men in track and field athletes who have not had a history of regular resistance training, metabolic-skeletal diseases, and taking sports supplements during the last six months are selected as a sample.
Intervention groups
Subjects are divided into three groups: High intensity and Low-volume resistance training, Low-intensity and High-volume resistance training, and the control group (without resistance training program).
Main outcome variables
The results of this study can show the best resistance training protocol to increase muscle hypertrophy, as well as the best training method to develop muscle strength and endurance.
General information
Reason for update
Acronym
IRCT registration information
IRCT registration number:IRCT20140512017675N3
Registration date:2021-12-20, 1400/09/29
Registration timing:prospective
Last update:2021-12-20, 1400/09/29
Update count:0
Registration date
2021-12-20, 1400/09/29
Registrant information
Name
Dariush Sheikholeslami-Vatani
Name of organization / entity
University of Kurdistan
Country
Iran (Islamic Republic of)
Phone
+98 912 225 0724
Email address
d.vatani@uok.ac.ir
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2022-01-21, 1400/11/01
Expected recruitment end date
2022-05-22, 1401/03/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Effect of two resistance training protocols and detraining on muscle hypertrophy, hormonal and functional changes in track and field athletes
Public title
Resistance training intensity and muscle hypertrophy
Purpose
Health service research
Inclusion/Exclusion criteria
Inclusion criteria:
Lack of regular exercise training during the last six months
Do not take medication or any sport supplements
No metabolic and joints diseases
Exclusion criteria:
People who have experienced resistance training
Age less than 18 years or more than 30 years
Medical prohibition
Age
From 18 years old to 30 years old
Gender
Male
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
45
More than 1 sample in each individual
Number of samples in each individual:
5
Each subject is evaluated in five stages (after participating in training and detraining programs).
Randomization (investigator's opinion)
Randomized
Randomization description
Subjects based on simple random sampling are assigned into High-intensity, Low-intensity or control groups. For this purpose, each subject will be assigned a code (1 to 45) randomly. Then, in the form of a lottery, the first 15 people are placed in the high-intensity resistance training group. Similarly, the second 15 and the third 15 are assigned in the low-intensity resistance training group and the control group, respectively.
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
Research Ethics Committee of University of Kurdistan
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
۶۶۱۷۷-۱۵۱۷۵
Approval date
2021-07-10, 1400/04/19
Ethics committee reference number
IR.UOK.REC.1400.010
Health conditions studied
1
Description of health condition studied
Dose not contain a disease
ICD-10 code
ICD-10 code description
Primary outcomes
1
Description
Muscle Hypertrophy
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
Two-dimensional Ultrasound
2
Description
Serum concentration of testosterone hormone
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
Elisa kit
3
Description
Serum concentration of IGF_1 hormone
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
Elisa kit
4
Description
Serum concentration of cortisol hormone
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
Elisa kit
5
Description
Muscle strength
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
One repetition maximum (1-RM) test
6
Description
Muscle endurance
Timepoint
pre-test, after one training session, after 12-week training and after 4 weeks detraining
Method of measurement
One repetition maximum (1-RM) test
Secondary outcomes
1
Description
Body weight
Timepoint
pre-test, after one training session, after 12-week training and after 4-week detraining
Method of measurement
Weight scales
Intervention groups
1
Description
Intervention group: High-intensity and low volume resistance training group: This program lasts for 12 weeks, three sessions per week and each session includes seven resistance movements in three sets with an intensity of 70 to 80% of 1-RM (with 90-second rest intervals between movements). Each set continues until exhaustion. After a 12-week training program subjects experience four weeks of detraining (without any resistance training).
Category
Other
2
Description
Intervention group: Low-intensity and high volume resistance training group: This program lasts for 12 weeks, three sessions per week and each session includes seven resistance movements in three sets with an intensity of 30 to 50% of 1-RM (with 90-second rest intervals between movements). Each set continues until exhaustion. After a 12-week training program subjects experience four weeks of detraining (without any resistance training).
Category
Other
3
Description
Control group: Subjects in this group do not experience any resistance training or detraining.
Category
Other
Recruitment centers
1
Recruitment center
Name of recruitment center
University of Kurdistan
Full name of responsible person
Dariush Sheikholeslami-Vatani
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
66177-15175
Phone
+98 87 3366 4600
Email
d.vatani@uok.ac.ir
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
University of Kurdistan
Full name of responsible person
Kayomars Karami
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
66177-15175
Phone
+98 87 3366 4600
Email
KKarami@uok.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
University of Kurdistan
Proportion provided by this source
20
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
University of Kurdistan
Full name of responsible person
Dariush Sheikholeslami-Vatani
Position
Faculty member
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
66177-15175
Phone
+98 87 3366 4600
Email
d.vatani@uok.ac.ir
Person responsible for scientific inquiries
Contact
Name of organization / entity
University of Kurdistan
Full name of responsible person
Dariush Sheikholeslami-Vatani
Position
Faculty member
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
66177-15175
Phone
+98 87 3366 4600
Email
d.vatani@uok.ac.ir
Person responsible for updating data
Contact
Name of organization / entity
University of Kurdistan
Full name of responsible person
Dariush Sheikholeslami-Vatani
Position
Faculty member
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Pasdaran
City
Sanandaj
Province
Kurdistan
Postal code
66177-15175
Phone
+98 87 3366 4600
Email
d.vatani@uok.ac.ir
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
Not applicable
Title and more details about the data/document
The data can be published after ensuring that subjects are not identified.
When the data will become available and for how long
Start accessing immediately after results are published.
To whom data/document is available
Anyone who requested can access the data.
Under which criteria data/document could be used
By examining the request by the researcher it will be possible to access the data.
From where data/document is obtainable
Researcher,
Email: d.vatani@uok.ac.ir
What processes are involved for a request to access data/document
The request should be sent to the following email address:
Email: d.vatani@uok.ac.ir