4. What is a heart rate monitor? 5. What is perceived exertion? (pg. 172) 6. What is YOUR resting heart rat e? (pg 173) 7. What is YOUR maximum heart rate? (pg 174)

4. A heart rate monitor is a device that measures the heart rate. It can be a standalone device or part of a fitness tracker or smartwatch. The device typically uses sensors to detect the heart rate and display it on a screen or transmit it to a connected device.<br /><br />5. Perceived exertion refers to the level of difficulty or intensity that an individual feels during physical activity. It is a subjective measure of how hard a person feels they are working during exercise. Perceived exertion can be used as a guide to adjust the intensity of a workout and can be measured using various scales, such as the Borg Scale or the Rate of Perceived Exertion (RPE).<br /><br />6. The resting heart rate is the number of heartbeats per minute when a person is at rest. It is an indicator of cardiovascular health and can vary from person to person. For example, athletes may have a lower resting heart rate due to increased cardiovascular efficiency.<br /><br />7. The maximum heart rate is the highest number of heartbeats per minute that a person can achieve during maximum physical exertion. It is an important value for determining target heart rate zones for exercise. The maximum heart rate can be estimated using the formula: 220 - age. For example, for a 30-year-old, the estimated maximum heart rate would be 190 beats per minute.