RecruitingPhase 3

Acute Sodium Bicarbonate Supplementation in Female Basketball Players

Poland100 participantsStarted 2026-03-01

Plain-language summary

This randomized, double-blind, placebo-controlled crossover study aims to evaluate the effect of acute sodium bicarbonate supplementation, compared with placebo, on physical capacity and blood biochemical marker concentrations in highly trained female basketball players.

Who can participate

Age range

16 Years – 35 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * female sex, * age 16 to 35 years, * good general health condition and well-being, * regular menstrual cycles, * written informed consent to participate in the study before its commencement, * at least a high level of training status, * at least 4 years of training experience in basketball, * participation in at least 3 basketball-specific training sessions per week, * participation in at least 1 basketball game per week. Exclusion Criteria: * male sex, * use of hormonal contraceptives, * current injury or musculoskeletal condition limiting participation in training or competition, * health-related or medical contraindications, including menstrual disorders, planned pregnancy, or anemia, * use of supplements within 3 months before the study, except for regular use of protein supplements, carbohydrate supplements, or isotonic drinks, * failure to meet the study protocol assumptions or unwillingness to follow study procedures.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Changes in anaerobic power during the repeated modified Wingate Anaerobic Test

Timeframe: At the Day 0 (familiarization visit), Day 7 (baseline visit), Day 14 (experimental visit 1), and Day 21 (experimental visit 2)

Changes in interval mean power during the repeated modified Wingate Anaerobic Test

Timeframe: At the Day 0 (familiarization visit), Day 7 (baseline visit), Day 14 (experimental visit 1), and Day 21 (experimental visit 2)

Changes in second-by-second power output during the repeated modified Wingate Anaerobic Test

Timeframe: At the Day 0 (familiarization visit), Day 7 (baseline visit), Day 14 (experimental visit 1), and Day 21 (experimental visit 2)

Changes in time to peak power during the repeated modified Wingate Anaerobic Test

Timeframe: At the Day 0 (familiarization visit), Day 7 (baseline visit), Day 14 (experimental visit 1), and Day 21 (experimental visit 2)

Changes in countermovement jump height

Timeframe: At the Day 0 (familiarization visit), Day 7 (baseline visit), Day 14 (experimental visit 1), and Day 21 (experimental visit 2)

Changes in countermovement jump power

Trial details

NCT IDNCT07730606

SponsorKrzysztof Durkalec-Michalski

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-12-01

Contact for this trial

Jakub Adamczewski, MSc

+48 66 317 56 06 adamczewski@awf.poznan.pl

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