This study will examine the acute effects of high intensity interval ergometry on peripheral concentrations of lactate and hydrogen ions, as well as cognitive function. Approximately 60 healthy, college-aged males will participate in the Wisconsin Card Sorting Task (WCST), a measure of executive function, two times over a span of two weeks. Prior to the WCST, participants will complete either a warm-up, a warm-up and high intensity interval exercise, or a stationary period. Changes in lactate, pH, and WCST score will be evaluated between and within groups in relation to the presence of the high intensity exercise stimulus.
Age range
18 Years – 35 Years
Sex
MALE
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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.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Peripheral Blood Lactate
Timeframe: 8 times total; 2 at Baseline (Day 1; Minute 14 and Minute 29), 3 in session 1 (Day 3; Minute 2, Minute 18, and Minute 29), and 3 in session 2 (Day 17; Minute 2, Minute 18, and Minute 29); Maximum Time Frame at Session 2 (Day 17, Minute 29)
Peripheral Hydrogen Ions, Peripheral Blood pH
Timeframe: 8 times total; 2 at Baseline (Day 1; Minute 14 and Minute 29), 3 in session 1 (Day 3; Minute 2, Minute 18, and Minute 29), and 3 in session 2 (Day 17; Minute 2, Minute 18, and Minute 29); Maximum Time Frame at Session 2 (Day 17, Minute 29)
Executive Function
Timeframe: 2 times total, 1 in session 1 (Day 3; Minute 20), 1 in session 2 (Day 17, Minute 20); Maximum Time Frame at Session 2 (Day 17, Minute 20)