Evaluation of the effects of resistance exercise with elastic bands on body composition, functional fitness test, and muscle mass Magnetic resonance imaging (MRI) in employees of a University of Medical Sciences.
The aim of the present study was to investigate the effect of 8 weeks of resistance training with elastic bands on body composition, physical performance factors and muscle mass with magnetic resonance imaging (MRI) in employees of Baqiyatullah University of Medical Sciences (AJ).
Design
pre-test + elastic band exercise intervention + post-test
A sample size of 15 to 20 subjects will be calculated using G*Power 3.1 with a current power of 0.80, α = 0.05 and an effect size (ES) of 0.30 based on the procedures proposed by Beck (2013).
Settings and conduct
location of the study: Gymnasium and Exercise Physiology Laboratory, Baqiyatallah University of Medical Sciences, Tehran, Iran
Methods and procedures: The exercise intervention consisted of an 8-week progressive exercise program with elastic bands for the upper and lower body. The sessions were 3 sessions per week with elastic bands (Saturdays, Mondays, and Wednesdays) consisting of four exercises for the upper body and four exercises for the lower body. The elastic bands (Thera-Bands) consisted of four latex bands with different elasticity.
In the pre- and post-intervention phase, physical fitness tests (strength and endurance assessment), Vo2max, MRI, and 6-minute walk test were obtained and recorded.
Participants/Inclusion and exclusion criteria
Entry requirements:
No underlying disease
Age range 40 to 65 years (median age based on studies)
Full-time employee of Baqiyatallah University of Medical Sciences
No contraindications for MRI
Intervention groups
The main intervention of the present study was 8 weeks of resistance exercise training with elastic bands.
Main outcome variables
The main consequence of delayed onset muscle soreness after exercise is in the initial sessions, which resolves as the body adapts and continues training.
General information
Reason for update
Acronym
IRCT registration information
IRCT registration number:IRCT20250209064690N1
Registration date:2025-02-12, 1403/11/24
Registration timing:prospective
Last update:2025-02-12, 1403/11/24
Update count:0
Registration date
2025-02-12, 1403/11/24
Registrant information
Name
Ehsan Arabzadeh
Name of organization / entity
Baqiyatallah University of medical science
Country
Iran (Islamic Republic of)
Phone
+98 914 260 3854
Email address
eh.arabzadeh@bmsu.ac.ir
Recruitment status
recruiting
Funding source
Expected recruitment start date
2025-04-21, 1404/02/01
Expected recruitment end date
2025-06-22, 1404/04/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Evaluation of the effects of resistance exercise with elastic bands on body composition, functional fitness test, and muscle mass Magnetic resonance imaging (MRI) in employees of a University of Medical Sciences.
Public title
Effects of resistance exercise with elastic bands on body composition, functional physical factors, and muscle mass
Purpose
Prevention
Inclusion/Exclusion criteria
Inclusion criteria:
No underlying medical condition
Age range 40 to 65 years (median age based on studies)
Full-time university employee
No contraindications for MRI
Exclusion criteria:
Delayed onset muscle soreness within 14 days prior to protocol initiation
Confirmed, suspected, or asymptomatic COVID-19 case identified by PCR at study entry.
Having heart diseases and being restricted from exercise
Age
From 40 years old to 65 years old
Gender
Male
Phase
N/A
Groups that have been masked
No information
Sample size
Target sample size:
20
Randomization (investigator's opinion)
N/A
Randomization description
Blinding (investigator's opinion)
Not blinded
Blinding description
Placebo
Not used
Assignment
Single
Other design features
None
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Baqiyatullah Al-Azam Educational and Medical Center (Research Ethics Committee)
Street address
Mulla Sadra - Baha'i Sheikh
City
Tehran
Province
Tehran
Postal code
1435916471
Approval date
2025-01-20, 1403/11/01
Ethics committee reference number
IR.BMSU.BAQ.REC.1403.221
Health conditions studied
1
Description of health condition studied
None
ICD-10 code
ICD-10 code description
Primary outcomes
1
Description
Anthropometric and body composition assessment
Timepoint
Before-2 months intervention-after
Method of measurement
Body analyzer
2
Description
(Functional Fitness Test
Timepoint
Before-2 months intervention-after
Method of measurement
(1) Aerobic endurance - 2-minute walk. (2) Muscular strength and endurance - 30-second dumbbell curls and 30-second chair sit-ups. (3) Flexibility - back stretch and chair sit-up and pull-up test. (4) Balance - one-leg stand with eyes open and 8-foot stand and walk. and (5) Body composition (BMI and WHR)
3
Description
Agility
Timepoint
Before-2 months intervention-after
Method of measurement
Modified change of direction T-test (T-half)
4
Description
Explosive power
Timepoint
Before-2 months intervention-after
Method of measurement
vertical jumps-Standing long jump
5
Description
Endurance and strength
Timepoint
Before-2 months intervention-after
Method of measurement
6MWT- Vo2max- 1RM
6
Description
Muscle mass
Timepoint
Before-2 months intervention-after
Method of measurement
MRI
Secondary outcomes
empty
Intervention groups
1
Description
Intervention group: Elastic band training: This study uses employees of the research institute, hospital, and Baqiyatullah University of Medical Sciences (AJ) with inclusion and exclusion criteria (sample size calculation with GPower). The training intervention consists of an 8-week progressive upper and lower body elastic band training program. The training was conducted in 1404 AH for one group in a pre-post period. The intervention design is based on previous studies (46) (Table 1). The 3-week sessions with elastic bands (Saturdays, Mondays, and Wednesdays) consisted of four exercises for the upper body and four exercises for the lower body. The elastic bands (Thera-Bands) consisted of four latex bands with different elasticity: red [250% stretch (3.2 kg)], green [250% stretch (4.4 kg)], blue [250% stretch (6 kg)], and black [250% stretch (8 kg)]. Upper limb exercises include Flies, High elbow row, Trunk rotation, and Standing press, and lower limb exercises include Knee extension, Knee flexion, Half squat, and Hip adduction. The order of exercises is alternated (upper limb exercise then lower limb exercise) in each session. The elastic band is folded to double its resistance to extension in the lower limb exercise, but is not folded for the upper limb exercise. The range of motion required during each exercise is calculated individually, so that the appropriate connections of the bands to the wall and the subject's body are determined. Recovery between sets is 30 seconds. All exercises are performed at maximum effort. The initial length of the elastic band for all exercises is 120 cm. Warm-up and cool-down are performed before and after the main exercise. Variables are measured before and after the main exercise.
Category
Prevention
Recruitment centers
1
Recruitment center
Name of recruitment center
Baqiyatallah University of Medical Sciences
Full name of responsible person
Ehsan Arabzadeh-Behzad Bazgir
Street address
VANAK
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8860 0030
Email
eh.arabzadeh@bmsu.ac.ir
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Dr. Hadi Esmaili
Street address
Vanak
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 912 068 7556
Email
eprc.webinar@gmail.com
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Bagheiat-allah 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
Other
Person responsible for general inquiries
Contact
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Ehsan Arabzadeh
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Vanak
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 5607 2464
Email
eh.arabzadeh@gmail.com
Person responsible for scientific inquiries
Contact
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Ehsan Arabzadeh
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Vanak
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 5607 2464
Email
eh.arabzadeh@gmail.com
Person responsible for updating data
Contact
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Ehsan Arabzadeh
Position
Assistant professor
Latest degree
Ph.D.
Other areas of specialty/work
Physiology
Street address
Vanak
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 5607 2464
Email
eh.arabzadeh@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
No - There is not 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
Information is published in the form of booklets and articles.
When the data will become available and for how long
Information is published in the form of booklets and articles.
To whom data/document is available
Information is published in the form of booklets and articles.
Under which criteria data/document could be used
Information is published in the form of booklets and articles.
From where data/document is obtainable
Information is published in the form of booklets and articles.
What processes are involved for a request to access data/document
Information is published in the form of booklets and articles.
Comments
Information is published in the form of booklets and articles.