AthletesNCT06656858
The Acute Effects of Static and PNF Stretching Exercise With Blood Flow Restriction in Athletes
A study testing Static stretching, PNF stretching and Static stretching with BFR in people with Athletes, run by Dokuz Eylul University at 1 site in Turkey (Türkiye).
Trial summary
The study aims to examine the acute effects of static and proprioceptive neuromuscular facilitation stretching exercises with blood flow restriction on hamstring flexibility, muscle strength, and single leg hop in athletes. Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Athletes
- What is being tested?
- Static stretching, PNF stretching and Static stretching with BFR
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 109 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 20 Aug 2019to 25 Aug 2023
- 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
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Age between 18-40 years old
- Engaged in regular physical activity for at least 8 hours a week for the last 6 months
- Body mass index (BMI) < than 30 kg/m²
- Momentary blood pressure less than 135/85 mmHg
Who cannot join
- History of fractures or surgical operations involving the lower limbs, hips, or lumbar region
- history of fractures, surgeries and other diagnosed medical conditions on the lower extremity, hip, and lumbar region
- Systemic musculoskeletal disease
- Pain in the lower back, hips, or lower extremities
- Known hip deformity or diagnosis of scoliosis
- History of deep vein thrombosis or embolism
Show all 9Show fewer
- Diagnosis of circulatory system diseases such as hypertension or peripheral vascular disease
- History of anemia
- Previous cerebrovascular disease or myocardial infarction.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Dokuz Eylul University, Sports Medicine Department
Izmir, Balcova, 35330
About this study
Official title: The Acute Effects of Static and PNF Stretching Exercise With Blood Flow Restriction on Hamstring Flexibility, Muscle Strength and Single Leg Hop in Athletes : A Randomized Controlled Trial
The study aims to examine the acute effects of static and proprioceptive neuromuscular facilitation stretching exercises with blood flow restriction on hamstring flexibility, muscle strength, and single leg hop in athletes. Outcome measures were hip range of motion, isometric and eccentric hamstring muscle strength, and single leg hop distance.
Read the detailed description
A total of 109 athletes were included in the study. Participants were randomized into five groups: (1) static stretching, (2) proprioceptive neuromuscular facilitation (PNF) stretching, (3) blood flow restriction (BFR) + static stretching, (4) BFR + PNF stretching, and (5) control groups. Stretching exercises were performed on the dominant leg hamstring muscle group for 3 sets of 15 seconds each. BFR was applied during the stretching to the blood flow restriction (BFR) + static stretching and BFR + PNF stretching groups. No stretching was applied to the control group.
Assessments were performed at baseline and immediately after stretching. Hamstring flexibility (hip joint range of motion) was assessed via the passive straight leg raise test. Isometric and eccentric hamstring muscle strength were measured using a hand-held dynamometer, and muscle power was assessed using the single leg hop distance.
- Conditions
- Athletes
- Being tested
- Static stretching, PNF stretching, Static stretching with BFR, PNF stretching with BFR, Control
- Keywords
- blood flow restriction, stretching, flexibility, hamstring
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Static stretchingOther
Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds
PNF stretchingOther
PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds.
Static stretching with BFROther
Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.
PNF stretching with BFROther
PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.
ControlOther
No stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants.
| Study group | Role | What they receive |
|---|---|---|
| Static stretching | Active comparator | Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds. Receives: Other: Static stretching |
| PNF stretching | Active comparator | PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds. Receives: Other: PNF stretching |
| Static stretching with BFR | Experimental | Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application. Receives: Other: Static stretching with BFR |
| PNF stretching with BFR | Experimental | PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application Receives: Other: PNF stretching with BFR |
| Control | Other | No stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants. Receives: Other: Control |
What is being measured
The primary outcome is the main question the study is designed to answer.
hamstring flexibility
Passive straight leg rise test for dominant leg
Measured: immediately after intervention
Secondary outcomes (2)
Power
single leg hop distance for dominant and non-dominant leg
Measured: immediately after intervention
muscle strength
isometric and eccentric hamstring muscle strength of the dominant leg
Measured: immediately after intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Oct 2024
- Study start20 Aug 2019
- Primary completion25 Aug 2023
- Study completion25 Aug 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for AthletesStudies 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 109 participants (actual)
Sponsor and investigators
- Lead sponsor
- Dokuz Eylul University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ayşe Birsu Topcugil Kırık, Dokuz Eylul University
- Investigators
- Ayse Birsu Topcugil Kirik, MD, Principal investigator, Dokuz Eylul University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06656858
- Sponsor's protocol ID
- 5016-GOA
- Status last verified
- Oct 2024
- First submitted
- 19 Feb 2024
- Last updated
- 24 Oct 2024
- 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 24 Oct 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Acute Effects of Static and PNF Stretching Exercise With Blood Flow Restriction on Hamstring Flexibility, Muscle Strength and Single Leg Hop in Athletes : A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT06656858
- Acronym / sponsor ID
- 5016-GOA
- Conditions
- Athletes
- Keywords
- blood flow restriction, stretching, flexibility, hamstring
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 109 participants (actual)
- Lead sponsor
- Dokuz Eylul UniversityUniversity, hospital or other
- Study start
- 20 Aug 2019 (actual)
- Primary completion
- 25 Aug 2023 (actual)
- Study completion
- 25 Aug 2023 (actual)
- First posted
- 24 Oct 2024 (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.
The study aims to examine the acute effects of static and proprioceptive neuromuscular facilitation stretching exercises with blood flow restriction on hamstring flexibility, muscle strength, and single leg hop in athletes. Outcome measures were hip range of motion, isometric and eccentric hamstring muscle strength, and single leg hop distance.
Detailed description
A total of 109 athletes were included in the study. Participants were randomized into five groups: (1) static stretching, (2) proprioceptive neuromuscular facilitation (PNF) stretching, (3) blood flow restriction (BFR) + static stretching, (4) BFR + PNF stretching, and (5) control groups. Stretching exercises were performed on the dominant leg hamstring muscle group for 3 sets of 15 seconds each. BFR was applied during the stretching to the blood flow restriction (BFR) + static stretching and BFR + PNF stretching groups. No stretching was applied to the control group.
Assessments were performed at baseline and immediately after stretching. Hamstring flexibility (hip joint range of motion) was assessed via the passive straight leg raise test. Isometric and eccentric hamstring muscle strength were measured using a hand-held dynamometer, and muscle power was assessed using the single leg hop distance.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Static stretching | Active comparator | Other: Static stretchingStatic stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds. |
| PNF stretching | Active comparator | Other: PNF stretchingPNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds. |
| Static stretching with BFR | Experimental | Other: Static stretching with BFRStatic stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application. |
| PNF stretching with BFR | Experimental | Other: PNF stretching with BFRPNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application |
| Control | Other | Other: ControlNo stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants. |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Age between 18-40 years old
- Engaged in regular physical activity for at least 8 hours a week for the last 6 months
- Body mass index (BMI) < than 30 kg/m²
- Momentary blood pressure less than 135/85 mmHg
Key exclusion criteria (9 listed)
- History of fractures or surgical operations involving the lower limbs, hips, or lumbar region
- history of fractures, surgeries and other diagnosed medical conditions on the lower extremity, hip, and lumbar region
- Systemic musculoskeletal disease
- Pain in the lower back, hips, or lower extremities
- Known hip deformity or diagnosis of scoliosis
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 |
|---|---|---|
| Static stretchingStatic stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds | Other | Static stretching |
| PNF stretchingPNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds. | Other | PNF stretching |
| Static stretching with BFRStatic stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application. | Other | Static stretching with BFR |
| PNF stretching with BFRPNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application. | Other | PNF stretching with BFR |
| ControlNo stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants. | Other | Control |
Primary outcome
hamstring flexibility
Time frame: immediately after intervention
Passive straight leg rise test for dominant leg
2 secondary outcomes
Power
Time frame: immediately after intervention
muscle strength
Time frame: immediately after intervention
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 24 Oct 2024.
- Individual participant dataSharing planned: No
Related trials for Athletes
Not yet recruitingObservational study
Isokinetic Knee Strength, Bilateral Muscle Balance, and Anaerobic Performance in Adolescent Athletes
Isokinetic Knee Strength, Hamstring-to-Quadriceps Strength Ratio
Recruiting
Feasibility of a Digital Self-help Program for Functional Hypothalamic Amenorrhea (HEAL-FHA Pilot)
Functional Hypothalamic Amenorrhea
Recruiting
Trained vs. Untrained: Lower Extremity Pressure Changes
Trained Athletes, Untrained
Recruiting
Recovery After Fatigue in Young Athletes: Comparison Between TECAR Therapy and Cycle Ergometer"
Muscle Fatigue, Healthy Adult
Not yet recruiting
PLYOMETRIC TRAINING VERSUS CALISTHENIC TECHNIQUE FOR IMPROVING JUMP PERFORMANCE AND PATELLOFEMORAL FUNCTION IN KARATE ATHLETES
Jump Performance, Patellofemoral Joint
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.
Ayse Birsu Topcugil Kirik, MD principal investigator
Dokuz Eylul University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Static stretching, PNF stretching and Static stretching with BFR in people with Athletes, run by Dokuz Eylul University 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 4 inclusion and 9 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 24 Oct 2024. 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?
hamstring flexibility (time frame: immediately after intervention). 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 24 Oct 2024.