CP-PPG: A Dual-Channel PPG Dataset for Studying the Impact of Contact Pressure on Blood Pressure Biosensing

Photoplethysmography (PPG) based consumer wearable devices have been widely used for continuous health monitoring. However, PPG is vulnerable to the contact pressure (CP) between sensors and human skin, resulting in signal morphology distortions and unreliable measurements. Hence, we present a novel dual-channel PPG Dataset (CP-PPG). It includes fingertip PPG signals recorded at several different contact pressures, along with systolic (SBP) and diastolic (DBP) blood pressure and some basic physiological information from 142 subjects. It covers an age range of 21–86 years and contains 54% abnormal blood pressure cases. This "CP-PPG" Dataset is designed to analysis of how contact pressure influences PPG morphology and supports developing methods to improve the measurement reliability of PPG-based blood pressure biosensing.------------------------------------------------------------------------------------------------------------------------------The above dataset is collected and managed by <b><i>CardioWorks Team</i></b>. If you have any questions about the data or relative researches, please contact us by email: [e-mail] or [e-mail] <b><i>CardioWorks Team</i></b> focuses on PPG-based portable or wearable cardiovascular health detection and disease assessment. For more research datasets and published papers, please pay attention to the following:Dataset:PPG-BP Database: https://doi.org/10.6084/m9.figshare.5459299.v5Non-invasive Hemoglobin Detection based on Four-wavelength PPG Signal: https://doi.org/10.6084/m9.figshare.22256143.v1Cuff-less Blood Pressure Measurement based on Four-wavelength PPG Signals：https://doi.org/10.6084/m9.figshare.23283518.v1Published Articles:[1] Mohamed Elgendi, Richard Fletcher, <b>Yongbo Liang</b>, et al. The use of photoplethysmography for assessing hypertension [J]. <b><i>npj Digital Medicine</i></b>, <b>2019</b>, 2(1):1-11.<b>（2019）</b><b>Link</b>[2] Xudong Hu Shimin Yin, Xizhuang Zhang, Carlo Menon, Cheng Fang, Zhencheng Chen, Mohamed Elgendi* and <b>Yongbo Liang*</b>. Blood pressure stratification using photoplethysmography and light gradient boosting machine [J]. <b><i>Frontiers in Physiology</i></b>, <b>2023</b>, 14(1072273): 1-11.（<b>2023</b>）<b>Link</b>[3] <b>Yongbo Liang</b>, Shimin Yin, Qunfeng Tang, Zhenyu Zheng, Mohamed Elgendi* and Zhencheng Chen*. Deep Learning Algorithm Classifies Heartbeat Events Based on Electrocardiogram Signals. <b><i>Frontiers in Physiology</i></b>, 02 October 2020. Doi: 10.3389/fphys.2020.569050. （<b>2020</b>）<b>Link</b>[4] Cheng, Peng，Chen, Zhencheng*，Li, Quanzhong，Gong, Qiong，Zhu, Jianming，<b>Liang, Yongbo*</b>. Atrial Fibrillation Identification With PPG Signals Using a Combination of Time-Frequency Analysis and Deep Learning. <b><i>IEEE Access</i></b> 8, 172692-172706 (<b>2020</b>). <b>Link</b>[5] Zhenyu Zheng, Zhencheng Chen*, Fangrong Hu, Jianming Zhu, Qunfeng Tang, <b>Yongbo Liang</b>^{<strong>*</strong>}. An Automatic Diagnosis of Arrhythmias Using a Combination of CNN and LSTM Technology [J]. <b><i>Electronics</i></b>, <b>2020</b>, 9(1): 1-15. <b>Link</b>[6] <b>Yongbo Liang</b>, Derek Abbott, Newton Howard, Kenneth Lim, Rabab Ward and Mohamed Elgendi*. How Effective Is Pulse Arrival Time for Evaluating Blood Pressure? Challenges and Recommendations from a Study Using the MIMIC Database. <b><i>Journal of Clinical Medicine</i></b>, 8， 1-14, doi:10.3390/jcm8030337 (<b>2019</b>). <b>Link</b>[7] <b>Yongbo Liang</b>, Zhencheng Chen*, Guiyong Liu, Mohamed Elgendi*. A new, short-recorded photoplethysmogram dataset for blood pressure monitoring in China. <b><i>Scientific data</i></b>, doi:10.1038/sdata.2018.20 (<b>2018</b>). <b>Link</b>[8] <b>Yongbo Liang</b>, Mohamed Elgendi*, Zhencheng Chen* &amp; Rabab Ward. An optimal filter for short photoplethysmogram signals. <b><i>Scientific data</i></b>, 5, 180076, doi:10.1038/sdata.2018.76 (<b>2018</b>). <b>Link</b>[9] <b>Yongbo Liang</b>, Zhencheng Chen*, Rabab Ward &amp; Mohamed Elgendi*. Hypertension Assessment Using Photoplethysmography: A Risk Stratification Approach.<b> </b><b><i>Journal of Clinical Medicine</i></b>, 8, doi:10.3390/jcm8010012 (<b>2018</b>). <b>Link</b>[10] <b>Yongbo Liang</b>, Zhencheng Chen, Rabab Ward &amp; Mohamed Elgendi*. Hypertension Assessment via ECG and PPG Signals: An Evaluation Using MIMIC Database. <b><i>Diagnostics</i></b>, 8, doi:10.3390/diagnostics8030065 (<b>2018</b>). <b>Link</b>[11] <b>Yongbo Liang</b>, Zhencheng Chen, Rabab Ward &amp; Mohamed Elgendi*. Photoplethysmography and Deep Learning: Enhancing Hypertension Risk Stratification. <b><i>Biosensors</i></b>, 8，doi:10.3390/bios8040101 (<b>2018</b>). <b>Link</b>[12] Xuhao Dong Ziyi Wang, Liangli Cao, Zhencheng Chen*, <b>Yongbo Liang*</b>. Whale Optimization Algorithm with a Hybrid Relation Vector Machine: A Highly Robust Respiratory Rate Prediction Model Using Photoplethysmography Signals [J]. <b><i>Diagnostics</i></b>, 2023, 13(5): 1-14. <b>Link</b>[13] Zhencheng Chen, Huishan Qin, Wenjun Ge, Shiyong Li*, <b>Yongbo Liang*</b>. Research on a Non-Invasive Hemoglobin Measurement System Based on Four-Wavelength Photoplethysmography [J]. <b><i>Electronics</i></b>, 2023, 12(6): 1-12. <b>Link</b>[14] Yang Zhang, Jianming Zhu, <b>Yongbo Liang</b>, Hongbo Chen, Shimin Yin and Zhencheng Chen*. Non-invasive blood glucose detection system based on conservation of energy method. <b><i>Physiological measurement</i></b>, <b>2017</b>, 38: 325-342.[15]<b> </b><b>Yongbo Liang</b>, Ahmed Hussain, Derek Abbott, Carlo Menon, Rabab Ward and Mohamed Elgendi*. Impact of Data Transformation: An ECG Heartbeat Classification Approach. <b><i>Frontiers in Digital Health, Dec 23, 2020</i></b><b><i> </i></b>doi: 10.3389/fdgth.2020.610956 (2020), <b>Link</b>