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General information
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Edit the date of registration of the code of ethics
Edit the date of registration of the code of ethics
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ویرایش تاریخ ثبت کد اخلاق
ویرایش تاریخ ثبت کد اخلاق
Ethics committees
#1
2026-11-25, 1405/09/04
2026-04-18, 1405/01/29
2026-1104-2518 00:00:00
Protocol summary
Study aim
The aim of this study is to investigate the effect of soccer-specific fatigue on two-dimensional trunk and lower extremity kinematics during single-leg landing in male soccer players aged 18–25 years
Design
This study is a single-group quasi-experimental pretest–posttest trial involving 20 male soccer players aged 18–25 years. Participants will be recruited through purposive sampling and will undergo a soccer-specific fatigue protocol. Trunk and lower extremity kinematic variables will be assessed before and immediately after the intervention. The study does not include randomization or blinding and will be conducted as a single-center trial.
Settings and conduct
The desired tests will be taken at the Sports Rehabilitation Laboratory of Bu-Ali Sina University, Hamadan, by specialists in this field.
Participants/Inclusion and exclusion criteria
Inclusion Criteria: Male soccer players aged 18–25 years who are in good general health, regularly participate in soccer training and competition, and provide written informed consent after receiving a full explanation of the study procedures will be eligible for inclusion.
Exclusion Criteria: Inability or unwillingness to complete the soccer-specific fatigue protocol, occurrence of any injury or discomfort during testing, presence of musculoskeletal abnormalities of the pelvis or lower extremities, history of fracture, surgery, joint disorders, or neuromuscular conditions affecting movement performance, pathological signs involving the spine, shoulder girdle, or pelvic girdle, and withdrawal from the study at any stage will be considered exclusion criteria.
Intervention groups
Soccer-Specific Fatigue Group
Main outcome variables
Two-dimensional trunk and lower extremity kinematics during single-leg landing.
General information
Reason for update
Edit the date of registration of the code of ethics
Acronym
IRCT registration information
IRCT registration number:IRCT20260620069887N1
Registration date:2026-06-26, 1405/04/05
Registration timing:prospective
Last update:2026-06-28, 1405/04/07
Update count:1
Registration date
2026-06-26, 1405/04/05
Registrant information
Name
Raziyeh Taheri
Name of organization / entity
Bu-ali sina-hamedan
Country
Iran (Islamic Republic of)
Phone
+98 81 3323 2831
Email address
r.taheri@phe.basu.ac.ir
Recruitment status
recruiting
Funding source
Expected recruitment start date
2026-07-04, 1405/04/13
Expected recruitment end date
2026-08-01, 1405/05/10
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
The effect of soccer-specific fatigue on two-dimensional trunk and lower limb kinematics during single-leg landing in soccer players
Public title
Effects of Fatigue on Trunk and Lower Extremity Kinematics During Landing Tasks in Soccer Players
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria:
Male soccer players aged 18–25 years
At least 3 years of regular soccer participation
Regular participation in soccer training
Willingness to participate and provision of written informed consent
No lower-extremity musculoskeletal injury during the previous 6 months
Exclusion criteria:
History of surgery involving the lower extremities, pelvis, or spine
History of fracture or severe injury involving the lower extremities, pelvis, or spine
Structural or functional abnormalities of the pelvis or lower extremities
Neurological, musculoskeletal, or balance disorders affecting motor performance
Use of medications affecting balance or neuromuscular function
Age
From 18 years old to 25 years old
Gender
Male
Phase
N/A
Groups that have been masked
Outcome assessor
Sample size
Target sample size:
20
Randomization (investigator's opinion)
Randomized
Randomization description
eligible participants were randomly allocated to the study groups. Randomization was performed using the Random Number Generator software. A random number was assigned to each participant, and group allocation was determined according to the generated random sequence.
Blinding (investigator's opinion)
Single blinded
Blinding description
The outcome assessor was blinded to participants' group allocation throughout data collection and analysis
Placebo
Not used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Eyhics committee of Bu Ali Sina University
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Approval date
2026-04-18, 1405/01/29
Ethics committee reference number
IR.BASU.REC.1405.010
Health conditions studied
1
Description of health condition studied
assessment of trunk and lower extremity kinematic changes following soccer-specific fatigue and lower extremity injury risk factors
ICD-10 code
Z13.8
ICD-10 code description
Encounter for screening for other specified diseases and disorders
Primary outcomes
1
Description
Trunk flexion/extension angle, knee flexion angle, dynamic knee valgus angle, and ankle dorsiflexion/plantarflexion angle during single-leg landing
Timepoint
Before the intervention begins, One day after the end of the intervention
Method of measurement
Trunk and lower extremity kinematic variables during single-leg landing will be measured using two-dimensional video recording and analyzed with Kinovea software. Joint and trunk angles will be calculated in degrees and assessed before and immediately after the soccer-specific fatigue protocol.
Secondary outcomes
empty
Intervention groups
1
Description
Intervention group: Soccer-Specific Fatigue Group
Category
Prevention
Recruitment centers
1
Recruitment center
Name of recruitment center
Hamadan Province Sports Directorate
Full name of responsible person
heidar aldalimi
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Phone
+98 81 3838 1423
Email
taheri4347@gmail.com
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Bu Ali Sina University
Full name of responsible person
Farzane saki
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Phone
+98 81 3838 1423
Email
taheri4347@gmail.com
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Bu Ali Sina University
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
Bu Ali Sina University
Full name of responsible person
heidar aldalimi
Position
student
Latest degree
Bachelor
Other areas of specialty/work
Sport Rehabilitation
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Phone
+98 81 3838 1423
Email
taheri4347@gmail.com
Person responsible for scientific inquiries
Contact
Name of organization / entity
Bu Ali Sina University
Full name of responsible person
Heidar aldalimi
Position
student
Latest degree
Bachelor
Other areas of specialty/work
sport rehabilitation
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Phone
+98 81 3838 1423
Email
taheri4347@gmail.com
Person responsible for updating data
Contact
Name of organization / entity
Bu Ali Sina University
Full name of responsible person
raziyeh taheri
Position
Student
Latest degree
Bachelor
Other areas of specialty/work
sport rehabilitation
Street address
Hamadan, Modares Town, Abu Taleb Street, Bu Ali Sina University
City
hamedan
Province
Hamadan
Postal code
3869565178
Phone
+98 81 3838 1423
Email
taheri4347@gmail.com
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
Undecided - It is not yet known if there will be a plan to make this available
Data Dictionary
Undecided - It is not yet known if there will be a plan to make this available