Cognitive Responses to Acute Breath-Hold Diving Training in Female Divers

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-30
SponsorIstanbul Gelisim University

About this trial

This study aims to investigate the acute cognitive and physiological responses to breath-hold diving training in trained female divers. Participants will complete three separate sessions including a control session, a land-based breath-hold training session, and a water-based breath-hold training session in randomized order. Cognitive performance, mood state, heart rate responses, respiratory function, and maximal breath-hold capacity will be evaluated before and after the interventions. The study is expected to improve understanding of how acute apnea-based diving exercises influence cognitive functions and physiological adaptations under different environmental conditions.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Licensed breath-hold or free-diving athletes

Aged between 18 and 30 years

Minimum of 5 years of training experience

No known cardiovascular or pulmonary disease

Disqualifiers

Use of performance-enhancing drugs or ergogenic aids

Presence of chronic sports injury

Alcohol consumption within 24 hours before testing

Caffeine intake within 2 hours before testing

Trial design

Design model

Crossover

Treatments tested in this trial

  • Land-Based Breath-Hold Training

    Behavioral

    Participants will perform structured land-based breath-hold exercises consisting of repeated apnea efforts at 60% of individual maximal breath-hold capacity with standardized rest intervals.

  • Water-Based Breath-Hold Training

    Behavioral

    Participants will perform structured breath-hold exercises in a swimming pool environment consisting of repeated apnea efforts at 60% of individual maximal breath-hold capacity with standardized rest intervals.

  • Control Session

    Other intervention

    Participants will undergo baseline cognitive, respiratory, mood, and physiological assessments without structured apnea or breath-hold exercise intervention.

Treatment groups

30 Participants
are divided into 3 treatment groups
Group A: Control SessionExperimental treatment 1 intervention
Group B: Land-Based Breath-Hold TrainingExperimental treatment 1 intervention
Group C: Water-Based Breath-Hold TrainingExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Working Memory Accuracy (2-Back Test)

Accuracy score obtained from the computerized 2-back cognitive task.

Time frame
Baseline and immediately after the intervention, within 5 minutes post-intervention.
2

Reaction Time During the 2-Back Test

Mean reaction time recorded during correct responses in the 2-back cognitive task.

Time frame
Baseline and immediately after the intervention, within 5 minutes post-intervention.

Secondary outcomes

1

Brunel Mood Scale (BRUMS) Total Score

Total mood disturbance score assessed using the Brunel Mood Scale questionnaire.

Time frame
Baseline and immediately after the intervention, within 5 minutes post-intervention.
2

Maximum Breath-Hold Duration

Maximum voluntary breath-hold duration recorded during testing.

Time frame
Baseline during the control session before intervention sessions.
3

Resting Heart Rate

Resting heart rate measured before each session using a Polar heart rate monitor.

Time frame
Before each experimental session.
4

Exercise Heart Rate Response

Heart rate responses recorded every 30 seconds during the breath-hold exercise protocol.

Time frame
During the intervention session.

Other outcomes

Sponsors and contacts

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