Tissue FlossingNCT07306416
Acute Effects of Tissue Flossing on Muscle Properties and Jump Performance in Handball
A study testing Tissue Flossing conditioning and Foam Rolling in people with Tissue Flossing, run by Charles University, Czech Republic at 1 site in Czechia.
Trial summary
Purpose of the Study This study looked at how two popular warm-up techniques-tissue flossing and foam rolling-affect muscle flexibility, muscle properties, and jumping ability in young male handball players. The goal was to see which method might be better for preparing athletes for performance. Read more about this study
- Who is it for?
- Ages 15 to 22 years, men only
- Conditions the study is for
- Tissue Flossing
- What is being tested?
- Tissue Flossing conditioning and Foam Rolling
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteCzechia
- Study dates
- 10 Feb 2023to 3 Jun 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 15 to 22 years
- Men only
- No healthy volunteers
- Child, Adult
Who may be able to join
- Self-identified male
- Aged approximately 16-18 years
- Active handball player with at least 8 years of playing experience
- Currently healthy with no injuries in the past 3 months
- Able to perform physical activity and complete all testing procedures
- No prior regular use of tissue flossing (TF) or foam rolling (FR) techniques
Who cannot join
- Current or recent (within 3 months) musculoskeletal injury
- Any medical condition that would limit safe participation in exercise testing
- Previous experience with tissue flossing (TF) or regular use of foam rolling (FR)
- Inability to follow study instructions or complete all sessions
Trial locations and contacts
1 site in 1 country.
Czechia1 site
Faculty of Physical Education and Sport at Charles University
Prague, 261 01
About this study
Official title: Acute Effects of Tissue Flossing on the Viscoelastic Properties of the Muscles and Jump Performance in Handball Players: a Crossover Design
Purpose of the Study This study looked at how two popular warm-up techniques-tissue flossing and foam rolling-affect muscle flexibility, muscle properties, and jumping ability in young male handball players. The goal was to see which method might be better for preparing athletes for performance.
What Are These Techniques?
Read more
Tissue flossing: Wrapping a special elastic band tightly around a muscle or joint for a short time while moving. This temporarily reduces blood flow, and when the band is removed, blood rushes back in, which may boost muscle readiness.
Foam rolling: Using your body weight to roll muscles over a firm foam cylinder. This applies pressure to the muscle and fascia, helping to relax tight areas and increase flexibility.
Who Took Part? 30 male handball players, around 17 years old, who were healthy and injury-free. None had regularly used tissue flossing or foam rolling before.
How Was the Study Done?
Each player tried all three conditions on separate days:
Tissue flossing
Foam rolling
Control (no special technique, just exercises)
Before and after each session, the researchers measured:
Active range of motion (AROM) - how far they could move their leg muscles without help
Muscle properties - stiffness and tone of key thigh muscles
Jump performance - height and speed of force production in a countermovement jump
Measurements were taken before, 2 minutes after, and 15 minutes after each warm-up.
- Conditions
- Tissue Flossing
- Being tested
- Tissue Flossing conditioning, Foam Rolling
- Keywords
- Myofascial Release Therapy, Tissue Flossing, Foam rolling
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tissue Flossing conditioningOther
Tissue flossing using a 5 cm x 3.5 m green Sanctband Comprefloss band was wrapped around the thigh area. After the floss band was applied, the participants did 10 bodyweight squats, making sure to bend their knees to a 90-degree angle. Next, they did 10 dynamic lunges on each leg, switching legs after each lunge. After finishing these exercises, the floss band was removed.
Foam RollingOther
Using a firm foam roller to roll the quadriceps and hamstrings for 30 seconds per side.
| Study group | Role | What they receive |
|---|---|---|
| Tissue Flossing conditioning | Experimental | Tissue flossing using a 5 cm x 3.5 m green Sanctband Comprefloss band was wrapped around the thigh area. After the floss band was applied, the participants did 10 bodyweight squats, making sure to bend their knees to a 90-degree angle. Next, they did 10 dynamic lunges on each leg, switching legs after each lunge. After finishing these exercises, the floss band was removed. Receives: Other: Tissue Flossing conditioning |
| Foam rolling conditioning | Experimental | Each participant rolled the quadriceps on the right, then the left, for 30 seconds each, and did the same for the hamstrings, starting with the right and then the left, also for 30 seconds each side. Receives: Other: Foam Rolling |
| No intervention | No intervention | Participants perform standard dynamic warm-up exercises (bodyweight squats and lunges) with no additional device or treatment. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Active Range of Motion
Measured using the Active Knee Extension (AKE) test for both legs to assess hamstring flexibility.
Measured: Before the intervention, 2 minutes after, and 15 minutes after the intervention.
Secondary outcomes (2)
Jump Performance - Jump Height
Height achieved in a countermovement jump (CMJ) without arm swing, measured with a force plate.
Measured: Before the intervention, 2 minutes after, and 15 minutes after the intervention.
Jump Performance - Braking Rate of Force Development
The rate at which force is developed during the braking phase of the CMJ, measured via force plate.
Measured: Before the intervention, 2 minutes after, and 15 minutes after the intervention.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Dec 2025
- Study start10 Feb 2023
- Primary completion3 Jun 2023
- Study completion3 Jun 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tissue FlossingStudies of the same condition, open and under way.
- More trials run by Charles University, Czech RepublicThe sponsor's other registered studies.
- 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
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Charles University, Czech Republic
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07306416
- Sponsor's protocol ID
- 177/2020
- Status last verified
- Aug 2025
- First submitted
- 15 Aug 2025
- Last updated
- 29 Dec 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual participant data (IPD) that underlie the results reported in this article will be made available upon reasonable request to the corresponding author (anna.pisz@ftvs.cuni.cz). Data will be available immediately following publication, with no end date.
Study at a glance
From the registry record, last updated by the sponsor on 29 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Acute Effects of Tissue Flossing on the Viscoelastic Properties of the Muscles and Jump Performance in Handball Players: a Crossover Design
- ClinicalTrials.gov ID
- NCT07306416
- Acronym / sponsor ID
- 177/2020
- Conditions
- Tissue Flossing
- Keywords
- Myofascial Release Therapy, Tissue Flossing, Foam rolling
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Charles University, Czech RepublicUniversity, hospital or other
- Study start
- 10 Feb 2023 (actual)
- Primary completion
- 3 Jun 2023 (actual)
- Study completion
- 3 Jun 2023 (actual)
- First posted
- 29 Dec 2025 (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.
Purpose of the Study This study looked at how two popular warm-up techniques-tissue flossing and foam rolling-affect muscle flexibility, muscle properties, and jumping ability in young male handball players. The goal was to see which method might be better for preparing athletes for performance.
What Are These Techniques?
Tissue flossing: Wrapping a special elastic band tightly around a muscle or joint for a short time while moving. This temporarily reduces blood flow, and when the band is removed, blood rushes back in, which may boost muscle readiness.
Foam rolling: Using your body weight to roll muscles over a firm foam cylinder. This applies pressure to the muscle and fascia, helping to relax tight areas and increase flexibility.
Who Took Part? 30 male handball players, around 17 years old, who were healthy and injury-free. None had regularly used tissue flossing or foam rolling before.
How Was the Study Done?
Each player tried all three conditions on separate days:
Tissue flossing
Foam rolling
Control (no special technique, just exercises)
Before and after each session, the researchers measured:
Active range of motion (AROM) - how far they could move their leg muscles without help
Muscle properties - stiffness and tone of key thigh muscles
Jump performance - height and speed of force production in a countermovement jump
Measurements were taken before, 2 minutes after, and 15 minutes after each warm-up.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (participant)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Tissue Flossing conditioning | Experimental | Other: Tissue Flossing conditioningTissue flossing using a 5 cm x 3.5 m green Sanctband Comprefloss band was wrapped around the thigh area. After the floss band was applied, the participants did 10 bodyweight squats, making sure to bend their knees to a 90-degree angle. Next, they did 10 dynamic lunges on each leg, switching legs after each lunge. After finishing these exercises, the floss band was removed. |
| Foam rolling conditioning | Experimental | Other: Foam RollingEach participant rolled the quadriceps on the right, then the left, for 30 seconds each, and did the same for the hamstrings, starting with the right and then the left, also for 30 seconds each side. |
| No intervention | No intervention | –Participants perform standard dynamic warm-up exercises (bodyweight squats and lunges) with no additional device or treatment. |
Who may qualify
- Ages
- 15 to 22 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (6 listed)
- Self-identified male
- Aged approximately 16-18 years
- Active handball player with at least 8 years of playing experience
- Currently healthy with no injuries in the past 3 months
- Able to perform physical activity and complete all testing procedures
Key exclusion criteria (4 listed)
- Current or recent (within 3 months) musculoskeletal injury
- Any medical condition that would limit safe participation in exercise testing
- Previous experience with tissue flossing (TF) or regular use of foam rolling (FR)
- Inability to follow study instructions or complete all sessions
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 |
|---|---|---|
| Tissue Flossing conditioningTissue flossing using a 5 cm x 3.5 m green Sanctband Comprefloss band was wrapped around the thigh area. After the floss band was applied, the participants did 10 bodyweight squats, making sure to bend their knees to a 90-degree angle. Next, they did 10 dynamic lunges on each leg, switching legs after each lunge. After finishing these exercises, the floss band was removed. | Other | Tissue Flossing conditioning |
| Foam RollingUsing a firm foam roller to roll the quadriceps and hamstrings for 30 seconds per side. | Other | Foam rolling conditioning |
Primary outcome
Active Range of Motion
Time frame: Before the intervention, 2 minutes after, and 15 minutes after the intervention.
Measured using the Active Knee Extension (AKE) test for both legs to assess hamstring flexibility.
2 secondary outcomes
Jump Performance - Jump Height
Time frame: Before the intervention, 2 minutes after, and 15 minutes after the intervention.
Jump Performance - Braking Rate of Force Development
Time frame: Before the intervention, 2 minutes after, and 15 minutes after the 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 29 Dec 2025.
- Individual participant dataSharing planned: Yes. De-identified individual participant data (IPD) that underlie the results reported in this article will be made available upon reasonable request to the corresponding author (anna.pisz@ftvs.cuni.cz). Data will be available immediately following publication, with no end date.
Related trials for Tissue Flossing
Active, not recruiting
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Reliability and Performance Analysis of the Use of Tissue Flossing for Blood Flow Restriction.
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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 Tissue Flossing conditioning and Foam Rolling in people with Tissue Flossing, run by Charles University, Czech Republic at 1 site in Czechia.
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 6 inclusion and 4 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 29 Dec 2025. 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 Czechia. 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?
Active Range of Motion (time frame: Before the intervention, 2 minutes after, and 15 minutes after the 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 29 Dec 2025.