Shoulder PainNCT06720155
Sleeper Stretch in CrossFit Participants
A study testing Sleeper stretch and Standard workout in people with Shoulder Pain, run by Mayo Clinic at 2 sites in United States.
Trial summary
The purpose of this study is to compare the efficacy of the sleeper stretch in improving shoulder range of motion, strength and upper body performance in CrossFit athletes. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Shoulder Pain
- What is being tested?
- Sleeper stretch and Standard workout
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 26 participants
- Where
- 2 sitesUnited States
- Study dates
- 15 May 2025to 30 Sep 2025
- 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 55 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Regularly active (attending CrossFit > 2x per week)
Who cannot join
- Positive test for labral lesions or rotator cuff tears
- History of recent fracture
- Orthopedic surgery in the upper limbs or cervical region
- Any other current injury that would prevent participation in regular work-shift activities
Trial locations and contacts
2 sites in 1 country.
United States2 sites
Mayo Clinic Health System-La Crosse
La Crosse, Wisconsin, 54601
Driftless CrossFit
Onalaska, Wisconsin, 54650
About this study
Official title: The Effects of a Sleeper Stretch Intervention on Measures of Performance and Pain in CrossFit Participants: A Randomized Trial
The purpose of this study is to compare the efficacy of the sleeper stretch in improving shoulder range of motion, strength and upper body performance in CrossFit athletes.
- Conditions
- Shoulder Pain
- Being tested
- Sleeper stretch, Standard workout
- Keywords
- CrossFit, Sleeper stretch
- Medical subject headings
- Shoulder Pain
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sleeper stretchBehavioural
Participants will complete their regularly scheduled workout activities over 8 weeks, with the addition of the sleeper stretch into the dynamic warm-up. Participants will be instructed to lie side-lying with the dominant arm downward, the trunk rotated posteriorly 20 to 30°, the shoulder raised to 90°, the elbow flexed to 90°, and both knees semi-flexed to ensure stability. Participants will then be asked to use the opposite hand to grasp the dominant hand below the wrist and gradually internally rotate the forearm towards the floor; (i.e., the participant will perform passive internal rotation with the opposite arm). This stretch position will be completed on both sides. Participants will be instructed to complete 2 sets of 10 repetitions for each arm and hold the position for ~2 seconds.
Standard workoutBehavioural
Participants will complete their regularly programmed dynamic warm-ups before scheduled workout for 8 weeks.
| Study group | Role | What they receive |
|---|---|---|
| Sleeper Stretch | Experimental | Not described Receives: Behavioral: Sleeper stretch |
| Control Group | Active comparator | Not described Receives: Behavioral: Standard workout |
What is being measured
The primary outcome is the main question the study is designed to answer.
Upper body function
Measured by isometric horizontal push test (IHPT), a newly designed test that selectively measures the horizontal component of maximal isometric force, with 3 minutes of rest between each trial. The participants will place their hands on force platforms that sample ground reaction force data at 1000 Hz throughout the test.
Measured: Baseline, 4 weeks, 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Dec 2024
- Study start15 May 2025
- Primary completion30 Sep 2025
- Study completion30 Sep 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Shoulder PainStudies of the same condition, open and under way.
- More trials run by Mayo ClinicThe 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 26 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mayo Clinic
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alecia M. Gende, Mayo Clinic
- Investigators
- Alecia Gende, DO, CAQSM, Principal investigator, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06720155
- Sponsor's protocol ID
- 24-007771
- Status last verified
- Oct 2025
- First submitted
- 3 Dec 2024
- Last updated
- 22 Oct 2025
- 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 22 Oct 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effects of a Sleeper Stretch Intervention on Measures of Performance and Pain in CrossFit Participants: A Randomized Trial
- ClinicalTrials.gov ID
- NCT06720155
- Acronym / sponsor ID
- 24-007771
- Conditions
- Shoulder Pain
- Keywords
- CrossFit, Sleeper stretch
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 26 participants (actual)
- Lead sponsor
- Mayo ClinicUniversity, hospital or other
- Study start
- 15 May 2025 (actual)
- Primary completion
- 30 Sep 2025 (actual)
- Study completion
- 30 Sep 2025 (actual)
- First posted
- 6 Dec 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 purpose of this study is to compare the efficacy of the sleeper stretch in improving shoulder range of motion, strength and upper body performance in CrossFit athletes.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Sleeper Stretch | Experimental | Behavioral: Sleeper stretch |
| Control Group | Active comparator | Behavioral: Standard workout |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Regularly active (attending CrossFit > 2x per week)
Key exclusion criteria (4 listed)
- Positive test for labral lesions or rotator cuff tears
- History of recent fracture
- Orthopedic surgery in the upper limbs or cervical region
- Any other current injury that would prevent participation in regular work-shift activities
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 |
|---|---|---|
| Sleeper stretchParticipants will complete their regularly scheduled workout activities over 8 weeks, with the addition of the sleeper stretch into the dynamic warm-up. Participants will be instructed to lie side-lying with the dominant arm downward, the trunk rotated posteriorly 20 to 30°, the shoulder raised to 90°, the elbow flexed to 90°, and both knees semi-flexed to ensure stability. Participants will then be asked to use the opposite hand to grasp the dominant hand below the wrist and gradually internally rotate the forearm towards the floor; (i.e., the participant will perform passive internal rotation with the opposite arm). This stretch position will be completed on both sides. Participants will be instructed to complete 2 sets of 10 repetitions for each arm and hold the position for ~2 seconds. | Behavioural | Sleeper Stretch |
| Standard workoutParticipants will complete their regularly programmed dynamic warm-ups before scheduled workout for 8 weeks. | Behavioural | Control Group |
Primary outcome
Upper body function
Time frame: Baseline, 4 weeks, 8 weeks
Measured by isometric horizontal push test (IHPT), a newly designed test that selectively measures the horizontal component of maximal isometric force, with 3 minutes of rest between each trial. The participants will place their hands on force platforms that sample ground reaction force data at 1000 Hz throughout the 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 22 Oct 2025.
- Individual participant dataSharing planned: No
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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.
Alecia Gende, DO, CAQSM principal investigator
Mayo Clinic
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Sleeper stretch and Standard workout in people with Shoulder Pain, run by Mayo Clinic at 2 sites in United States.
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 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 22 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States. 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?
Upper body function (time frame: Baseline, 4 weeks, 8 weeks). 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 22 Oct 2025.