Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping PerformanceNCT07860944
Time Course of Responses to Unilateral Quadriceps Static Stretching
A study testing Unilateral Quadriceps Static Stretching in people with Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping Performance, run by İbrahim Dündar at 1 site in Turkey (Türkiye).
Trial summary
This study investigated whether unilateral static stretching of the quadriceps muscles produces immediate and short-term changes in muscle strength and jumping performance in both the stretched and unstretched legs. Read more about this study
- Who is it for?
- Ages 18 to 40 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping Performance
- What is being tested?
- Unilateral Quadriceps Static Stretching
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 21 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 22 Aug 2016to 12 Sep 2017
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy male volunteers aged 18-40 years who were eligible to participate based on medical history and the predefined eligibility criteria.
Who cannot join
- History of serious bone, joint, or muscle injuries in the lower extremities; chronic diseases; or any condition identified during eligibility screening that could affect participation or study assessments.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Gaziantep City Hospital, Department of Sports Medicine, Gaziantep, Turkiye
Gaziantep
About this study
Official title: Time Course of Ipsilateral and Contralateral Responses to Unilateral Quadriceps Static Stretching: A Repeated-Measures Experimental Study
This study investigated whether unilateral static stretching of the quadriceps muscles produces immediate and short-term changes in muscle strength and jumping performance in both the stretched and unstretched legs. Healthy adult men performed unilateral quadriceps static stretching, and muscle strength and jumping performance were assessed before stretching and at 0, 30, 60, and 120 minutes after stretching. The study evaluated changes over time in the stretched leg and possible responses in the opposite leg.
- Conditions
- Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping Performance
- Being tested
- Unilateral Quadriceps Static Stretching
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Unilateral Quadriceps Static StretchingBehavioural
Unilateral static stretching of the quadriceps muscles consisting of four stretching exercises. Each exercise was performed for 3 repetitions of 30 seconds, with 20 seconds of rest between repetitions. The total active stretching duration was 6 minutes.
| Study group | Role | What they receive |
|---|---|---|
| Unilateral Quadriceps Static Stretching | Experimental | Unilateral static stretching of the quadriceps muscles consisting of four stretching exercises. Each exercise was performed for 3 repetitions of 30 seconds with 20 seconds of rest between repetitions, for a total active stretching duration of 6 minutes. Receives: Behavioral: Unilateral Quadriceps Static Stretching |
What is being measured
The primary outcome is the main question the study is designed to answer.
Jump performance
Squat jump (SJ) and countermovement jump (CMJ) performance were assessed using a jump measurement system. Three maximal trials were performed for each test.
Measured: Baseline and immediately after stretching (0 min), 30, 60, and 120 minutes after stretching
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Oct 2026
- Study start22 Aug 2016
- Primary completion15 Apr 2017
- Study completion12 Sep 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping PerformanceStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 21 participants (actual)
Sponsor and investigators
- Lead sponsor
- İbrahim Dündar
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, İbrahim Dündar, Ankara University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07860944
- Sponsor's protocol ID
- 18-759-15
- Status last verified
- Oct 2026
- First submitted
- 1 Oct 2026
- Last updated
- 6 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Time Course of Ipsilateral and Contralateral Responses to Unilateral Quadriceps Static Stretching: A Repeated-Measures Experimental Study
- ClinicalTrials.gov ID
- NCT07860944
- Acronym / sponsor ID
- 18-759-15
- Conditions
- Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping Performance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 21 participants (actual)
- Lead sponsor
- İbrahim DündarUniversity, hospital or other
- Study start
- 22 Aug 2016 (actual)
- Primary completion
- 15 Apr 2017 (actual)
- Study completion
- 12 Sep 2017 (actual)
- First posted
- 6 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study investigated whether unilateral static stretching of the quadriceps muscles produces immediate and short-term changes in muscle strength and jumping performance in both the stretched and unstretched legs. Healthy adult men performed unilateral quadriceps static stretching, and muscle strength and jumping performance were assessed before stretching and at 0, 30, 60, and 120 minutes after stretching. The study evaluated changes over time in the stretched leg and possible responses in the opposite leg.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Unilateral Quadriceps Static Stretching | Experimental | Behavioral: Unilateral Quadriceps Static StretchingUnilateral static stretching of the quadriceps muscles consisting of four stretching exercises. Each exercise was performed for 3 repetitions of 30 seconds with 20 seconds of rest between repetitions, for a total active stretching duration of 6 minutes. |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Healthy male volunteers aged 18-40 years who were eligible to participate based on medical history and the predefined eligibility criteria.
Key exclusion criteria (1 listed)
- History of serious bone, joint, or muscle injuries in the lower extremities; chronic diseases; or any condition identified during eligibility screening that could affect participation or study assessments.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Unilateral Quadriceps Static StretchingUnilateral static stretching of the quadriceps muscles consisting of four stretching exercises. Each exercise was performed for 3 repetitions of 30 seconds, with 20 seconds of rest between repetitions. The total active stretching duration was 6 minutes. | Behavioural | Unilateral Quadriceps Static Stretching |
Primary outcome
Jump performance
Time frame: Baseline and immediately after stretching (0 min), 30, 60, and 120 minutes after stretching
Squat jump (SJ) and countermovement jump (CMJ) performance were assessed using a jump measurement system. Three maximal trials were performed for each test.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Oct 2026.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Unilateral Quadriceps Static Stretching in people with Effects of Unilateral Quadriceps Static Stretching on Muscle Strength and Jumping Performance, run by İbrahim Dündar at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 6 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Jump performance (time frame: Baseline and immediately after stretching (0 min), 30, 60, and 120 minutes after stretching). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Oct 2026.