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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 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. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Maintain home-based schedule | Behavioral | The team will maintain their home-based time zone schedule despite being in a location that is three time zones away |
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| Measure | Description | Time Frame |
|---|---|---|
| Sleep Quantity | Sleep duration will be assessed via wrist-worn WHOOP bands. | Daily for 5 days |
| Sleep Quality | Sleep efficiency will be assessed via wrist-worn WHOOP bands. | Daily for 5 days |
| Resting Heart Rate (RHR) | RHR will be assessed in the morning via wrist-worn WHOOP bands. | Daily for 5 days |
| Heart Rate Variability (HRV) | HRV will be assessed in the morning via wrist-worn WHOOP bands. | Daily for 5 days |
| Muscular Power | Muscular power is assessed via countermovement jump (CMJ) testing on force plates | Daily for 3 days |
| Muscular Strength | Muscular strength is assessed via handgrip dynamometry. | Daily for 3 days |
| Measure | Description | Time Frame |
|---|---|---|
| Reaction Time | Assessed in the morning via a mobile application | Daily for 5 days |
| Subjective Sleep Quality | Assessed in the morning via questionnaire (0-100) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institute of Sports Sciences & Medicine | Tallahassee | Florida | 32304 | United States |
Some of the individual data collected on the athletes is confidential to the research team and the team(s) participating in the study.
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| ICF | No | No | Yes | Informed Consent Form | Aug 18, 2025 | Aug 18, 2025 | ICF_000.pdf |
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| Daily for 5 days |
| Subjective Recovery | Assessed in the morning via questionnaire (0-100) | Daily for 5 days |