🚴 Trial 1: Heart Rate & Breathing Data

Students conduct their first full investigation trial using stationary bikes with the gym teacher. They measure resting heart rate and breathing rate, bike for their planned time, and then measure post-exercise rates using stopwatches and tally counters. Students record exact times, conditions (time of day, bike setting, posture), and any unexpected events in structured data tables in their Biking Body Systems Research Notebook.