Garmin D2 Mach 1 Owners Manual PDF - Page 51

3 Press UP or DOWN to view a predicted race time. 4 Press START to view predictions for other distances. NOTE: The predictions may seem inaccurate at first. The watch requires a few runs to learn about your running performance. Heart Rate Variability Status Your watch analyzes your wrist heart rate readings while you are sleeping to determine your heart rate variability (HRV). Training, physical activity, sleep, nutrition, and Color Zone Status Description healthy habits all impact your heart rate variability. HRV values can vary widely based on gender, age, and fitness level. A balanced HRV status may indicate positive signs of health such as good training and recovery balance, greater cardiovascular fitness, and resilience to stress. An unbalanced or poor status may be a sign of fatigue, greater recovery needs, or increased stress. For best results, you should wear the watch while sleeping. The watch requires three weeks of consistent sleep data to display your heart rate variability status. Green Balanced Your seven-day average HRV is within your baseline range. Orange Unbalanced Your seven-day average HRV is above or below your baseline range. Red No color Low Your seven-day average HRV is well below your baseline range. Poor Your HRV values are averaging well below the normal range for your age. No status No status means that there is insufficient data to generate a seven-day average. You can sync your watch with your Garmin Connect account to view your current heart rate variability status, trends, and educational feedback. Heart Rate Variability and Stress Level Stress level is the result of a three-minute test performed while standing still, where the D2 Mach 1 device analyzes heart rate variability to determine your overall stress. Training, sleep, nutrition, and general life stress all impact how a runner performs. The stress level range is from 1 to 100, where 1 is a very low stress state and 100 is a very high stress state. Knowing your stress level can help you decide if your body is ready for a tough training run or yoga. Viewing Your Heart Rate Variability and Stress Level This feature requires a Garmin chest heart rate monitor. Before you can view your heart rate variability (HRV) stress level, you must put on a heart rate monitor and pair it with your device (Pairing Your Wireless Sensors, page 58). TIP: Garmin recommends that you measure your stress level at approximately the same time and under the same conditions every day. 1 If necessary, press START, and select Add > HRV Stress to add the stress app to the apps list. 2 Select Yes to add the app to your list of favorites. 3 From the watch face, press START, select HRV Stress, and press START. 4 Stand still, and rest for 3 minutes. Performance Condition As you complete your activity, such as running or cycling, the performance condition feature analyzes your pace, heart rate, and heart rate variability to make a real-time assessment of your ability to perform compared to your average fitness level. It is approximately your realtime percentage deviation from your baseline VO2 max. estimate. Performance condition values range from -20 to +20. After the first 6 to 20 minutes of your activity, the device displays your performance condition score. For example, a score of +5 means that you are rested, fresh, and capable of a good run or ride. You can add performance condition as a data field to one of your training screens to monitor your ability throughout the activity. Performance condition can also be an indicator of fatigue level, especially at the end of a long training run or ride. NOTE: The device requires a few runs or rides with a heart rate monitor to get an accurate VO2 max. estimate and learn about your running or riding ability (About VO2 Max. Estimates, page 42). Appearance 43