mHealth and Sensor - Short Answer

<p>It means your sleep is optimal</p> Signup and view all the answers

<p>Wristband-type</p> Signup and view all the answers

<p>Alcohol consumption</p> Signup and view all the answers

<p>To generate electrical impulses to control the heart's contraction</p> Signup and view all the answers

<p>ECG sensor</p> Signup and view all the answers

<p>Less susceptible to motion artefacts</p> Signup and view all the answers

<p>To filter out noise and artefacts</p> Signup and view all the answers

<p>Convenience and comfort</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>To record heart signals over a prolonged period</p> Signup and view all the answers

<p>Low power consumption</p> Signup and view all the answers

<p>To support medical and public health practice</p> Signup and view all the answers

<p>Using two ring sensors</p> Signup and view all the answers

<p>Removing motion artefacts in PPG signals</p> Signup and view all the answers

<p>Convenience and portability</p> Signup and view all the answers

<p>Optimal sleep</p> Signup and view all the answers

<p>Increased battery life</p> Signup and view all the answers

<p>To assess readiness for the day</p> Signup and view all the answers

<p>Mobile health analytics</p> Signup and view all the answers

<p>To measure the changes in blood volume in the vessels to calculate heart rate</p> Signup and view all the answers

<p>It controls the contraction and relaxation of heart muscles to pump blood</p> Signup and view all the answers

<p>They enable real-time monitoring and data analysis for personalized health recommendations</p> Signup and view all the answers

<p>To continuously record the heart's electrical activity over a prolonged period</p> Signup and view all the answers

<p>To filter out motion artefacts and accurately calculate heart rate</p> Signup and view all the answers

<p>They provide accurate and continuous heart rate monitoring during physical activities</p> Signup and view all the answers

<p>To generate electrical impulses to control heart rhythm</p> Signup and view all the answers

<p>They enable continuous monitoring and personalized health recommendations</p> Signup and view all the answers

<p>To detect changes in light intensity proportional to blood volume</p> Signup and view all the answers

<p>It has a great signal-to-noise ratio and is resistant to motion artefacts</p> Signup and view all the answers

<p>The cardiac conduction system controls the contraction and relaxation of heart muscles, pumping blood.</p> Signup and view all the answers

<p>A PPG sensor measures heart rate by shining green light onto the skin and detecting changes in blood volume.</p> Signup and view all the answers

<p>A Holter monitor is a portable device that records heart activity over a longer period, while a chest strap is a wireless device that measures heart rate in real-time.</p> Signup and view all the answers

<p>The sinoatrial node acts as a pacemaker, generating electrical impulses that control the heart's contractions.</p> Signup and view all the answers

<p>Green light is better suited for PPG sensors because it is absorbed by the blood, allowing for more accurate measurements.</p> Signup and view all the answers

<p>Signal processing algorithms are used to filter out noise and artefacts, providing more accurate heart rate measurements.</p> Signup and view all the answers

<p>The Oura Ring App's Sleep Score measures the quality of sleep, and a score above 85 indicates optimal sleep.</p> Signup and view all the answers

<p>A photodetector measures the changes in light intensity caused by changes in blood volume, allowing for heart rate measurement.</p> Signup and view all the answers

<p>The advantages of PPG-based monitoring devices include being inexpensive, low power consumption, highly portable, and very convenient to wear. A common limitation is the need to remove motion artefacts in PPG signals to get accurate readings.</p> Signup and view all the answers

<p>mHealth platforms support mobile devices and wearable devices in collecting and analysing health-related data.</p> Signup and view all the answers

<p>Low power consumption devices can operate for longer periods, reducing the need for frequent recharging.</p> Signup and view all the answers

<p>The Readiness Score measures the body's readiness for physical activity, and a score above 70 indicates that the user is ready for the day.</p> Signup and view all the answers

<p>PPG sensors can also measure blood oxygen saturation.</p> Signup and view all the answers

<p>The different types of PPG-based monitoring devices include wristband-type (smart watch, smart band), finger-type (ring sensor), ear-type (earring sensor, earphone sensor), and forehead-type. These devices are characterized by being inexpensive, low power consumption, highly portable, and very convenient to wear.</p> Signup and view all the answers

<p>The Oura Ring App's Sleep Score accounts for sleep quality by measuring total sleep time, sleep efficiency, and other factors, and a score below 70 indicates that sleep quality needs to be improved.</p> Signup and view all the answers

<p>Heart rate variability is an important metric in the Oura Ring App's Readiness Score, as it indicates the body's ability to respond to physical activity and stress.</p> Signup and view all the answers