The Effect of Rhythmic Stimulus On An Elevated Heart Rate Post High-Intensity Interval Training

Overview

Athletes’ training causes them to have high heart rates, gaining an irregular heart causing chest pain, dizziness, and difficulty breathing from palpitations. This project focuses on which usage of a metronome is the most effective way for post exercise heart rate recovery after a high intensity interval training. The 10 participants all exercised a mixture of 10 push ups, 10 sit-ups, 10 squats, and 10 burpees repeatedly for 3 mins per day afterwards the heart rate recovery time to achieve baseline (within 3 bpm of original heart rate) was measured (constant variable) for 3 days. The first day had no changes to the experiment (control variable). On the second day, the participants listened to a 79 bpm (averaged baseline heart rate) (exp.1) metronome while on the third day they listened to a metronome starting at 130 bpm (averaged elevated heart rate) decreasing by 10 bpm (exp.2) (independent variables) post exercise heart rate recovery. My hypothesis was that if the metronome starts at the elevated heart rate and slowly decreases to baseline it will lower the heart rate faster. The experiment results supported my hypothesis, exp.2 had the fastest recovery heart rate, the male exp.2 decreased in post recovery time by .4 mins compared to the male exp.1. The female exp.2 decreased in post recovery time by 2.7 mins compared to the female exp.1. The group exp.2 decreased in post recovery time by 3.1 mins compared to the group exp.1.

Competition history

• CSEF 2026 Medicine & Physiology (Junior Division) · Entry J-15-20

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