Transmeridian TravelNCT06920225
Transmeridian Travel in Elite Female Athletes
A study testing Maintain home-based schedule in people with Transmeridian Travel, run by Florida State University at 1 site in United States.
Trial summary
The study will investigate whether maintaining a home-based time zone schedule will attenuate any decrements to sleep and performance experienced following transmeridian travel in elite female athletes. Read more about this study
- Who is it for?
- Ages 18 to 28 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Transmeridian Travel
- What is being tested?
- Maintain home-based schedule
- 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 siteUnited States
- Study dates
- 15 Feb 2025to 1 May 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 28 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Athlete on the roster of an NCAA Division 1 Team
- Has worn WHOOP device for at least 3 months
Who cannot join
- Musculoskeletal injury or cardiometabolic disease limiting participation in regular team activities
- Pre-diagnosed sleep condition that would negatively affect sleep quantity or quality
Trial locations and contacts
1 site in 1 country.
United States1 site
Institute of Sports Sciences & Medicine
Tallahassee, Florida, 32304
About this study
The study will investigate whether maintaining a home-based time zone schedule will attenuate any decrements to sleep and performance experienced following transmeridian travel in elite female athletes.
- Conditions
- Transmeridian Travel
- Being tested
- Maintain home-based schedule
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Maintain home-based scheduleBehavioural
The team will maintain their home-based time zone schedule despite being in a location that is three time zones away
| Study group | Role | What they receive |
|---|---|---|
| Home | No intervention | Participants will perform the protocol during a home series |
| Away (No Time Zone Change) | No intervention | Participants will perform the protocol during a road series in the same time zone as home. |
| Away (3 h Time Zone Change, Adopt Away Schedule) | No intervention | Participants will perform the protocol during a road series across three time zones. The team will adopt the schedule of the new time zone. |
| Away (3 h Time Zone Change, Maintain Home Schedule) | Experimental | Participants will perform the protocol during a road series across three time zones. The team will maintain the schedule of their home time zone. Receives: Behavioral: Maintain home-based schedule |
What is being measured
The primary outcome is the main question the study is designed to answer.
Sleep Quantity
Sleep duration will be assessed via wrist-worn WHOOP bands.
Measured: Daily for 5 days
Sleep Quality
Sleep efficiency will be assessed via wrist-worn WHOOP bands.
Measured: Daily for 5 days
Resting Heart Rate (RHR)
RHR will be assessed in the morning via wrist-worn WHOOP bands.
Measured: Daily for 5 days
Heart Rate Variability (HRV)
HRV will be assessed in the morning via wrist-worn WHOOP bands.
Measured: Daily for 5 days
Muscular Power
Muscular power is assessed via countermovement jump (CMJ) testing on force plates
Measured: Daily for 3 days
Muscular Strength
Muscular strength is assessed via handgrip dynamometry.
Measured: Daily for 3 days
Secondary outcomes (3)
Reaction Time
Assessed in the morning via a mobile application
Measured: Daily for 5 days
Subjective Sleep Quality
Assessed in the morning via questionnaire (0-100)
Measured: Daily for 5 days
Subjective Recovery
Assessed in the morning via questionnaire (0-100)
Measured: Daily for 5 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Apr 2025
- Study start15 Feb 2025
- Primary completion1 May 2025
- Study completion1 May 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Transmeridian TravelStudies of the same condition, open and under way.
- More trials run by Florida State UniversityThe 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
- Non-randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 21 participants (actual)
Sponsor and investigators
- Lead sponsor
- Florida State University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michael J. Ormsbee, Florida State University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06920225
- Sponsor's protocol ID
- STUDY00005528
- Status last verified
- Aug 2025
- First submitted
- 20 Mar 2025
- Last updated
- 22 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Some of the individual data collected on the athletes is confidential to the research team and the team(s) participating in the study.
Study at a glance
From the registry record, last updated by the sponsor on 22 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Transmeridian Travel in Elite Female Athletes
- ClinicalTrials.gov ID
- NCT06920225
- Acronym / sponsor ID
- STUDY00005528
- Conditions
- Transmeridian Travel
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 21 participants (actual)
- Lead sponsor
- Florida State UniversityUniversity, hospital or other
- Study start
- 15 Feb 2025 (actual)
- Primary completion
- 1 May 2025 (actual)
- Study completion
- 1 May 2025 (actual)
- First posted
- 9 Apr 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.
The study will investigate whether maintaining a home-based time zone schedule will attenuate any decrements to sleep and performance experienced following transmeridian travel in elite female athletes.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Home | No intervention | –Participants will perform the protocol during a home series |
| Away (No Time Zone Change) | No intervention | –Participants will perform the protocol during a road series in the same time zone as home. |
| Away (3 h Time Zone Change, Adopt Away Schedule) | No intervention | –Participants will perform the protocol during a road series across three time zones. The team will adopt the schedule of the new time zone. |
| Away (3 h Time Zone Change, Maintain Home Schedule) | Experimental | Behavioral: Maintain home-based scheduleParticipants will perform the protocol during a road series across three time zones. The team will maintain the schedule of their home time zone. |
Who may qualify
- Ages
- 18 to 28 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Athlete on the roster of an NCAA Division 1 Team
- Has worn WHOOP device for at least 3 months
Key exclusion criteria (2 listed)
- Musculoskeletal injury or cardiometabolic disease limiting participation in regular team activities
- Pre-diagnosed sleep condition that would negatively affect sleep quantity or quality
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 |
|---|---|---|
| Maintain home-based scheduleThe team will maintain their home-based time zone schedule despite being in a location that is three time zones away | Behavioural | Away (3 h Time Zone Change, Maintain Home Schedule) |
Primary outcome
Sleep Quantity
Time frame: Daily for 5 days
Sleep duration will be assessed via wrist-worn WHOOP bands.
Sleep Quality
Time frame: Daily for 5 days
Sleep efficiency will be assessed via wrist-worn WHOOP bands.
Resting Heart Rate (RHR)
Time frame: Daily for 5 days
RHR will be assessed in the morning via wrist-worn WHOOP bands.
Heart Rate Variability (HRV)
Time frame: Daily for 5 days
HRV will be assessed in the morning via wrist-worn WHOOP bands.
Muscular Power
Time frame: Daily for 3 days
Muscular power is assessed via countermovement jump (CMJ) testing on force plates
Muscular Strength
Time frame: Daily for 3 days
Muscular strength is assessed via handgrip dynamometry.
3 secondary outcomes
Reaction Time
Time frame: Daily for 5 days
Subjective Sleep Quality
Time frame: Daily for 5 days
Subjective Recovery
Time frame: Daily for 5 days
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 Aug 2025.
- Individual participant dataSharing planned: Undecided. Some of the individual data collected on the athletes is confidential to the research team and the team(s) participating in the study.
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 Maintain home-based schedule in people with Transmeridian Travel, run by Florida State University at 1 site 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 2 inclusion and 2 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 Aug 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 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?
Sleep Quantity (time frame: Daily for 5 days). The study lists 6 primary outcomes in all. 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 Aug 2025.