Calculation of Heart Rate in Irregular Rhythm

Heart Rate Calculation for Irregular Rhythms

Calculating heart rate accurately can be challenging when the rhythm is irregular. This calculator helps estimate your average heart rate over a specific period when your beats are not evenly spaced. For irregular rhythms, it's best to measure the number of beats over a longer duration (e.g., 30 or 60 seconds) and then calculate the average beats per minute (BPM).

function calculateHeartRateIrregular() { var beatsCountInput = document.getElementById("beatsCount"); var durationSecondsInput = document.getElementById("durationSeconds"); var resultDiv = document.getElementById("result"); var beatsCount = parseFloat(beatsCountInput.value); var durationSeconds = parseFloat(durationSecondsInput.value); if (isNaN(beatsCount) || isNaN(durationSeconds)) { resultDiv.innerHTML = "Please enter valid numbers for both beats and duration."; return; } if (durationSeconds <= 0) { resultDiv.innerHTML = "Duration must be greater than zero."; return; } if (beatsCount < 0) { resultDiv.innerHTML = "Number of beats cannot be negative."; return; } var averageBPM = (beatsCount / durationSeconds) * 60; resultDiv.innerHTML = "Estimated Average Heart Rate: " + averageBPM.toFixed(2) + " BPM"; } .calculator-container { font-family: sans-serif; max-width: 500px; margin: 20px auto; padding: 20px; border: 1px solid #ccc; border-radius: 8px; background-color: #f9f9f9; } .calculator-container h2 { text-align: center; color: #333; margin-bottom: 15px; } .calculator-container p { font-size: 0.9em; color: #555; line-height: 1.5; margin-bottom: 20px; } .input-section { margin-bottom: 15px; } .input-section label { display: block; margin-bottom: 5px; font-weight: bold; color: #444; } .input-section input[type="number"] { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; font-size: 1em; } button { display: block; width: 100%; padding: 12px 20px; background-color: #4CAF50; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 1.1em; margin-top: 20px; transition: background-color 0.3s ease; } button:hover { background-color: #45a049; } .result-section { margin-top: 25px; padding: 15px; background-color: #e0f7e0; border: 1px solid #a5d6a7; border-radius: 4px; text-align: center; font-size: 1.2em; color: #388e3c; font-weight: bold; }

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