## Appendix A
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**No.** & **Ref.** & **Country, Year** & **Technology Used** &
\begin{tabular}{c} **Physiological Signals** \\ **Sensed** \\ \end{tabular} & **Type of Device** & **Key Findings** \\ \hline
32. & [44] & Romania, 2022 & \begin{tabular}{c} Cloud computing, \\ wearable sensors \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Cloud-based systems \\ offer scalable and \\ efficient health \\ monitoring solutions for \\ elderly care. \\ \end{tabular} \\ \hline
33. & [101] & Italy, 2022 & \begin{tabular}{c} Bluetooth, Android app, \\ MariaDB \\ \end{tabular} & \
\begin{tabular}{c} Blood pressure, heart rate \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Enhances healthcare \\ delivery, cost-efficiency, \\ and patient monitoring \\ by leveraging remote \\ monitoring and real-time \\ data access. \\ \end{tabular} \\ \hline
34. & [62] & Brazil, 2022 & \begin{tabular}{c} Internet of Things, \\ Firebase platform \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, blood \\ oxygenation, \\ temperature \\ \end{tabular} & Wearable glove &
\begin{tabular}{c} Offers real-time data \\ monitoring and presents \\ a cost-effective \\ alternative to commercial \\ devices. \\ \end{tabular} \\ \hline
35. & [35] & Malaysia, 2022 & \begin{tabular}{c} MAX30102, GPS, \\ NodeMCU, Blynk \\ application \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, oxygen \\ saturation \\ \end{tabular} & Wearable prototype &
\begin{tabular}{c} Provides real-time \\ monitoring, patient \\ location information, and \\ a user-friendly mobile \\ application. \\ \end{tabular} \\ \hline
36. & [109] & Italy, 2022 & \begin{tabular}{c} Wearable sensors, IoT \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Advanceements in \\ wearable technology and \\ IoT integration improve \\ health monitoring for \\ elderly individuals. \\ \end{tabular} \\ \hline
37. & [89] & Poland, 2022 & IoT, wearable sensors & \
\begin{tabular}{c} Heart rate, blood \\ pressure, oxygen \\ saturation \\ \end{tabular} & Wearable devices, mobile &
\begin{tabular}{c} IoT-based healthcare \\ systems offer real-time \\ monitoring and \\ improved patient \\ outcomes. \\ \end{tabular} \\ \hline
38. & [38] & China, 2022 & IoT, wearable sensors & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Wearable technology and \\ systems offer real-time \\ monitoring and \\ improved patient \\ outcomes. \\ \end{tabular} \\ \hline
39. & [40] & Germany, 2022 & \begin{tabular}{c} Wearable sensors, IoT \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Wearable technology and \\ elderly individuals offer \\ effective health \\ monitoring solutions. \\ \end{tabular} \\ \hline
40. & [74] & India, 2022 & IoT, wearable sensors & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Providpe for geriatric \\ health monitoring using \\ an IoT cloud platform for \\ data transmission. \\ \end{tabular} \\ \hline
41. & [119] & Taiwan, 2022 & IoT, wearable sensors & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} IoT-based health \\ monitoring systems offer \\ continuous and real-time \\ health data for elderly \\ care. \\ \end{tabular} \\ \hline
42. & [87] & China, 2022 & \
\begin{tabular}{c} Wearable sensors, IoT \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Wearable technology and \\ IoT offer effective health \\ monitoring solutions for \\ elderly care. \\ \end{tabular} \\ \hline
43. & [60] & Malaysia, 2022 & \
\begin{tabular}{c} Wearable sensors, IoT \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Wearable technology and \\ IoT for health monitoring \\ elderly individuals offer \\ effective health \\ monitoring solutions. \\ \end{tabular} \\ \hline
44. & [86] & Ukraine, 2022 & \begin{tabular}{c} Cloud computing, \\ wearable sensors \\ \end{tabular} & \
\begin{tabular}{c} Heart rate, blood \\ pressure, temperature \\ \end{tabular} & Wearable devices &
\begin{tabular}{c} Wearable devices \\ monitoring solutions for \\ elderly care. \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table}