ecg-polar-h10-set5

Single-lead ECG tracings along with heart rate and 3-axis chest actigraphy using a Polar H10 sensor worn with on a Polar Pro chest strap, with data transferred via bluetooth to an Android smartphone (Realme 6i) that serves as a bluetooth receptor unit and data recorder via the Polar Sensor Logger app on Android by Jukka Happonen (Polar developer, this app is unofficial): https://play.google.com/store/apps/details?id=com.j_ware.polarsensorloggerData was compressed with 7-zip using LZMA2 in Normal compression setting and split into 5GB parts to respect the file size limit of figshare. Total is 18 GB compressed, 106 GB uncompressed.This dataset covers the period from 2021-10-09 to 2022-01-26, with a few 3-days gaps due to travelling and end of year festivities. There is no overlap with previous sets, this is the continuation. See other sets for further data.This wearable was only worn when at home.Each file represents one acquisition session, of variable time up to 140h in one session. The acquisition software also split files when the device is temporarily out of reach, so there several files with very few entries, which means the device was barely reachable or went in and out of bluetooth range. These files can be concatenated to study a longer time period. There are 4 types of files: ECG for the raw ECG at 133Hz sampling rate, HR for the heart-rate computed by the proprietary Polar embedded software in the H10 sensor and also the IBI (inter-beats intervals) to ease calculation of HRV (heart rate variability), ACC for the 3-axis (accelerometer = translation axes) chest actigraphy set at 100Hz sampling rate and 4g sampling resolution, and Marker which are manual markers by the operator to mark special temporal events but they were not used for this study so they are either deleted or empty. For the full technical specification of the Polar H10 device, see: https://github.com/polarofficial/polar-ble-sdk/tree/master/technical_documentation本数据集包含单导联心电图（ECG）波形数据，以及佩戴于Polar Pro胸带的Polar H10传感器采集的心率与三轴胸部体动记录仪数据；数据通过蓝牙传输至作为蓝牙接收单元的安卓智能手机（Realme 6i），并由Polar开发人员Jukka Happonen开发的非官方安卓应用Polar Sensor Logger完成数据录制与存储，应用下载地址为：https://play.google.com/store/apps/details?id=com.j_ware.polarsensorlogger。数据采用7-Zip以LZMA2标准压缩模式（Normal级别）进行压缩，并按照Figshare的文件大小限制拆分为若干5GB的分卷，总压缩容量为18GB，解压后总容量达106GB。本数据集覆盖2021年10月9日至2022年1月26日的时间段，期间因出行与年终节庆存在若干3天左右的数据空缺。本数据集与此前发布的数据集无重叠，属于后续补充数据，更多相关数据可参阅其他数据集系列。该可穿戴设备仅在居家场景下佩戴。每个文件对应一次采集会话，单次会话时长可变，最长可达140小时。当设备暂时超出蓝牙通信范围时，采集软件会自动拆分文件，因此存在少量条目极少的文件，此类情况对应设备几乎无法被检测或频繁进出蓝牙通信范围。此类文件可通过拼接以研究更长时间段的数据。本数据集包含4类文件： 1. ECG类：采样率为133Hz的原始心电图数据； 2. HR类：由Polar H10传感器内置专有软件计算得到的心率数据，同时包含心跳间隔（IBI, inter-beats intervals）数据，可便捷用于心率变异性（HRV, heart rate variability）分析； 3. ACC类：采样率为100Hz、采样分辨率为4g的三轴胸部加速度计（accelerometer，即运动采集轴）数据，用于胸部体动记录； 4. Marker类：由操作人员手动标记的特殊时间事件标记文件，但本研究未使用此类数据，因此该类文件要么已被删除，要么为空文件。如需了解Polar H10设备的完整技术规范，请参阅：https://github.com/polarofficial/polar-ble-sdk/tree/master/technical_documentation