Your grip strength appears to be below the average for your age and gender. Consider incorporating grip-strengthening exercises into your routine. Simple exercises include:

• Squeezing a stress ball or tennis ball: Hold for 3-5 seconds, relax, and repeat 10-15 times.
• Farmer's walks: Carry heavy weights (like dumbbells or kettlebells) and walk for a set distance.
• Plate pinches: Pinch two weight plates together with your fingertips and hold for time.

Consult with a healthcare or fitness professional before starting a new exercise program.

`; } else { recHTML = `

Your grip strength is average or above for your age and gender. This is a positive indicator of overall muscle health. To maintain your strength, continue with a balanced fitness routine that includes resistance training.

`; } recommendationsEl.innerHTML = recHTML; resultsArea.classList.remove('hidden'); }; // --- PDF Generation --- const generatePdf = () => { const { jsPDF } = window.jspdf; const pdfContent = document.getElementById('pdf-content'); const errorMsg = document.getElementById('pdf-error-msg'); const originalBtnText = downloadPdfBtn.innerHTML; downloadPdfBtn.disabled = true; downloadPdfBtn.innerHTML = 'Generating...'; errorMsg.classList.add('hidden'); html2canvas(pdfContent, { scale: 2, useCORS: true, backgroundColor: '#ffffff' }).then(canvas => { const imgData = canvas.toDataURL('image/png'); const pdf = new jsPDF({ orientation: 'portrait', unit: 'pt', format: 'a4' }); const pdfWidth = pdf.internal.pageSize.getWidth(); const pdfHeight = pdf.internal.pageSize.getHeight(); const padding = 40; const usableWidth = pdfWidth - (padding * 2); const canvasAspectRatio = canvas.width / canvas.height; let finalImgWidth = usableWidth; let finalImgHeight = finalImgWidth / canvasAspectRatio; if (finalImgHeight > pdfHeight - (padding * 2)) { finalImgHeight = pdfHeight - (padding * 2); finalImgWidth = finalImgHeight * canvasAspectRatio; } const x = (pdfWidth - finalImgWidth) / 2; const y = padding; pdf.addImage(imgData, 'PNG', x, y, finalImgWidth, finalImgHeight); pdf.save('Grip-Strength-Report.pdf'); downloadPdfBtn.disabled = false; downloadPdfBtn.innerHTML = originalBtnText; }).catch(err => { console.error("Error generating PDF:", err); downloadPdfBtn.disabled = false; downloadPdfBtn.innerHTML = originalBtnText; errorMsg.textContent = 'Sorry, there was an error creating the PDF.'; errorMsg.classList.remove('hidden'); }); }; // --- EVENT LISTENERS --- assessBtn.addEventListener('click', assessStrength); downloadPdfBtn.addEventListener('click', generatePdf); });