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Clinical Trial Details — Status: Enrolling by invitation

Administrative data

NCT number NCT06223776
Other study ID # 160/MN/INoS/2023
Secondary ID
Status Enrolling by invitation
Phase N/A
First received
Last updated
Start date May 15, 2023
Est. completion date August 1, 2024

Study information

Verified date April 2024
Source University School of Physical Education, Krakow, Poland
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The study aims to see how acute sleep restriction will affect women resistance trainers. Above all, the investigators will be interested in observing the relationship between shorter sleep and athletic performance, as well as other important aspects, such as their level of motivation to exercise, how much pain participants felt during exercise and how demanding they found exercise. The investigators assume that differences in subjective measures (such as pain levels, motivation and mood) will be most apparent.


Description:

Participants would take part in two identical experimental sessions under two sleep conditions: with sleep restrictions (SR), where will experience acute sleep restriction the night before the test session (i.e., 3 h of early sleep restriction versus normal sleep); with the control condition (CON), where participants will follow their habitual sleep-wake routines. Every session would separated by a 1-week interval. The average sleep duration (CON) is going to be estimated by using actigraphy Motionwatch 8 for 5 days (from Monday to Friday). Female athletes will receive accelerometers one day before experimental sessions. Participants will be asked to wear them on their non-dominant wrists from 8 p.m. to the next morning (experimental sessions day). The participants would complete the morning session with a battery of physical tests, measuring several components of specific physical performance capacity and cognitive function. During the experimental sessions, participants would be at the luteal or follicular phases excluding the period of bleeding (4-5 days) and the time immediately before planned bleeding (3 days before), because this can have a bad influence on sleep.


Recruitment information / eligibility

Status Enrolling by invitation
Enrollment 20
Est. completion date August 1, 2024
Est. primary completion date August 1, 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 18 Years to 30 Years
Eligibility Inclusion Criteria: - a minimum of 3 years of training experience; - practicing physical activity for the last 6 months at least 3 times per week for 2h - current medical qualification for competitive sport Exclusion Criteria: - diseases that can have a bad influence on the menstrual cycle (e.g. polycystic ovarian syndrome, endometriosis); - using hormonal contraception; - regularity of the menstrual cycle. - diagnosed cardiovascular, metabolic, gastrointestinal, or neurological diseases; - movement, neuromuscular or musculoskeletal disorders; - taking medications and supplements that may affect fitness test results; - taking supplements that may affect biochemical test results - sleep disorders - PSQI >5

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Sleep restriction
Participants will experience a night of acute sleep restriction. During this night, they will sleep 3 hours less than usual.

Locations

Country Name City State
Poland University School of Physical Education in Cracow Kraków

Sponsors (1)

Lead Sponsor Collaborator
University School of Physical Education, Krakow, Poland

Country where clinical trial is conducted

Poland, 

Outcome

Type Measure Description Time frame Safety issue
Other Objective Sleep - Total sleep time Total sleep time obtained from sleep onset to time at wake-up assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention
Other Objective Sleep - Sleep efficiency The percentage of total sleep time to lights off and leaving bed assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention.
Other Objective Sleep - WASO (Wake After Sleep Onset) The total number of minutes that a person is awake after having initially fallen asleep assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention.
Other Objective Sleep - Sleep duration The quantity of time that a person sleeps assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention.
Other Objective Sleep - Sleep onset time The time it takes a person to fall asleep after turning the lights out assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention.
Other Objective Sleep - Wake time The hours in the day that a person is awake assessed by actigraphy. The night before and after the experimental sessions. 1 day after night with or without intervention.
Other Blood collection - progesterone Blood will be drawn to measure progesterone. Before each experimental sesion 1 day after night with or without intervention.
Other Blood collection - estradiol Blood will be drawn to measure estradiol. Before each experimental sesion 1 day after night with or without intervention.
Primary Maximal strength bench press test The next day after a) sleep restriction b) normal sleep 1 day after night with or without intervention
Primary Muscle endurance test in bench press muscle endurance test in the bench press exercise at 50% 1RM 1 day after night with or without intervention
Primary Explosive bench press exercise three sets of three repetitions of explosive bench press exercise at 50% of the load representing one-repetition maximum (1RM) 1 day after night with or without intervention
Primary Countermovement jump Vertical jump test performed by having an athlete quickly squat to a self-selected depth and then jump as high as possible. 1 day after night with or without intervention
Secondary Mood (POMS) The POMS is a widely-applied measure for the assessment of an individual's mood. During each experimental session. Before sports performance protocol. 1 day after night with or without intervention
Secondary Pain (Pain scale) A pain scale is a tool use to help assess a person's pain. Scale 0-10 (0- lack of pain; 10 - maximal pain). Immediately after the last performance exercise in experimental sessions. 1 day after night with or without intervention
Secondary Motivation During each experimental session. Before sports performance protocol. 1 day after night with or without intervention
Secondary Rating perceived exertion (RPE) A subjective scale that assesses the severity of effort exerted. Includes a rating from 6 perceiving "no effort" to 20 perceiving "maximum effort." Immediately after the last performance exercise in experimental sessions. 1 day after night with or without intervention
Secondary Stress and recovery (SRSS) The Short Recovery and Stress Scale (SRSS) measure the recovery-stress state of an athlete multidimensionally with eight items on emotional, mental, physical, and overall levels. In the morning, each experimental day and the day after. 1 day after night with or without intervention
Secondary Readiness-to-train questionnaire (RTT-Q) Subjective reactions related to the level of motivation for effort. In the morning, each experimental day and the day after. 1 day after night with or without intervention
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