UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000060676 |
|---|---|
| Receipt number | R000069399 |
| Scientific Title | Effects of dynamic stretching on mechanical properties of lower limb muscles and athletic performance: A quantitative investigation using ultrasound imaging |
| Date of disclosure of the study information | 2026/02/14 |
| Last modified on | 2026/02/14 15:43:02 |
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Basic information
Public title
Effects of dynamic stretching on leg muscle flexibility and exercise performance: A study using ultrasound
Acronym
Changes in muscle flexibility and performance after stretching
Scientific Title
Effects of dynamic stretching on mechanical properties of lower limb muscles and athletic performance: A quantitative investigation using ultrasound imaging
Scientific Title:Acronym
Lower limb dynamic stretching: Muscle mechanical properties and performance - Quantitative ultrasound study
Region
| Japan |
Condition
Condition
None
Classification by specialty
| Rehabilitation medicine |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
Through this research, we aim to propose optimal intervention conditions for enhancing flexibility and provide foundational evidence that contributes to the establishment of effective stretching protocols and the prevention of sports injuries.The objective of this study is to quantitatively evaluate the effects of dynamic stretching (DS) on the mechanical properties of lower limb muscles and to clarify whether the reduction in muscle-tendon unit (MTU) stiffness is attributable to changes in the mechanical properties of individual muscles. Furthermore, the study investigates the dose-response relationship regarding the effects of DS on muscle mechanical properties, muscle performance, and jump performance.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Exploratory
Trial characteristics_2
Others
Developmental phase
Not applicable
Assessment
Primary outcomes
Measurement Timing is Pre- and post-intervention (each session), and during inter-set intervals of the dynamic stretching protocol.
Outcome Measures is Shear modulus, Peak joint angle, Passive torque, Isometric muscle strength, Isokinetic muscle strength
Key secondary outcomes
Measurement Timing is Pre- and post-intervention (each session), and during inter-set intervals of the dynamic stretching protocol.
Outcome Measures is Countermovement jump (CMJ), Squat jump (SJ)
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
Dose comparison
Stratification
YES
Dynamic allocation
NO
Institution consideration
Blocking
NO
Concealment
Central registration
Intervention
No. of arms
3
Purpose of intervention
Prevention
Type of intervention
| Maneuver |
Interventions/Control_1
1 set of forward leg swings (dynamic stretching) involving hip flexion and extension in the sagittal plane.
Interventions/Control_2
3 set of forward leg swings (dynamic stretching) involving hip flexion and extension in the sagittal plane.
Interventions/Control_3
5 set of forward leg swings (dynamic stretching) involving hip flexion and extension in the sagittal plane.
Interventions/Control_4
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 18 | years-old | <= |
Age-upper limit
| 29 | years-old | >= |
Gender
Male and Female
Key inclusion criteria
The subjects are healthy young adults with no motor dysfunction in the trunk or lower limbs, consisting of individuals classified by range of motion (ROM) measurements into two groups: those with normal flexibility and those with decreased lower limb flexibility.
Key exclusion criteria
Individuals with a history of orthopedic injury or surgery involving the trunk or lower limbs within the past six months, as well as those currently presenting with neuromuscular or cardiac diseases, are excluded from the study.
Target sample size
30
Research contact person
Name of lead principal investigator
| 1st name | Keigo |
| Middle name | |
| Last name | Taniguchi |
Organization
Sapporo Medical University
Division name
Department of Physical Therapy, School of Health Sciences
Zip code
060-8556
Address
School of Health Sciences, Sapporo Medical University, South-1, West-17, Chuo-Ku, Sapporo, Hokkaido, Japan
TEL
011-611-2111
ktani@sapmed.ac.jp
Public contact
Name of contact person
| 1st name | Shota |
| Middle name | |
| Last name | Hirayama |
Organization
Sapporo Medical University Graduate School
Division name
Division of Biological Function Evaluation, Department of Physical Therapy and Occupational Therapy
Zip code
060-8556
Address
School of Health Sciences, Sapporo Medical University, South-1, West-17, Chuo-Ku, Sapporo, Hokkaido
TEL
011-611-2111
Homepage URL
h.s82spt@gmail.com
Sponsor or person
Institute
Sapporo Medical University Graduate School
Institute
Department
Personal name
Hirayama Shota
Funding Source
Organization
None
Organization
Division
Category of Funding Organization
Other
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Sapporo Medical University Graduate School
Address
School of Health Sciences, Sapporo Medical University, South-1, West-17, Chuo-Ku, Sapporo, Hokkaido
Tel
011-611-2111
h.s82spt@gmail.com
Secondary IDs
Secondary IDs
NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 02 | Month | 14 | Day |
Related information
URL releasing protocol
Publication of results
Unpublished
Result
URL related to results and publications
Number of participants that the trial has enrolled
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Preinitiation
Date of protocol fixation
| 2026 | Year | 04 | Month | 01 | Day |
Date of IRB
Anticipated trial start date
| 2026 | Year | 04 | Month | 30 | Day |
Last follow-up date
| 2030 | Year | 03 | Month | 31 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 02 | Month | 14 | Day |
Last modified on
| 2026 | Year | 02 | Month | 14 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069399
