Target heart rate zone, Monitoring your heart rate – Keys Fitness Triumph 5.3e Elliptical TRI-5-3E User Manual

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Target heart rate zone, Monitoring your heart rate | Keys Fitness Triumph 5.3e Elliptical TRI-5-3E User Manual | Page 16 / 18 Target heart rate zone, Monitoring your heart rate | Keys Fitness Triumph 5.3e Elliptical TRI-5-3E User Manual | Page 16 / 18
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