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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
30
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.
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.
Participants will undergo baseline cognitive, respiratory, mood, and physiological assessments without structured apnea or breath-hold exercise intervention.
Istanbul Gelisim University
Istanbul, Turkey (Türkiye)
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.
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.
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.
Maximum Breath-Hold Duration
Maximum voluntary breath-hold duration recorded during testing.
Time frame: Baseline during the control session before intervention sessions.
Resting Heart Rate
Resting heart rate measured before each session using a Polar heart rate monitor.
Time frame: Before each experimental session.
Exercise Heart Rate Response
Heart rate responses recorded every 30 seconds during the breath-hold exercise protocol.
Time frame: During the intervention session.
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