The purpose of this study is to determine the effectiveness of different breathing techniques on biomarkers of stress and cognitive performance following the Trier Social Stress Test.
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Cognitive Challenge
Timeframe: 20 minutes prior to TSST start and immediately post TSST.
Heart Rate
Timeframe: HR was recorded 4 times, during each saliva sample collection period
State Anxiety Inventory (SAI)
Timeframe: Timepoint 1-4, 40 minutes pre, 10 minutes pre, immediately post, 25 minutes post.
Heart rate variability
Timeframe: HRV was recorded immediately following the 2nd, 3rd, and 4th saliva samples.
Secretory Immunoglobin-A
Timeframe: 40 minutes prior to modified TSST start, 10 minutes prior to modified TSST start, immediately post modified TSST, and 25 minutes post TSST
Salivary Alpha Amylase
Timeframe: 40 minutes prior to modified TSST start, 10 minutes prior to modified TSST start, immediately post modified TSST, and 25 minutes post TSST