Shyness and Body Fat Percen Predict HR Reactivity in Young Athletes

The dataset contains physiological and psychological measures from 20 adolescent canoe athletes (15 boys, 5 girls; M age = 14.3 ± 1.88 years). Each participant completed a reaction time (RT) task in a laboratory setting with heart rate (HR) recordings collected during three phases: baseline (5 min), RT task (5 min), and recovery (5 min). The dataset includes: 1) Demographics: age, sex; 2) Physiological measures: HR values for baseline, task, recovery; derived HR reactivity (task–recovery difference); 3) Anthropometric measure: body fat percentage; 4) Temperament traits: including shyness and other temperament dimensions; 5) Performance measures: RT trials, RT scores. - The dataset supports analyses of how temperament and adiposity predict HR reactivity during a psychomotor stress task.