KFall: A Comprehensive Motion Dataset to Detect Pre-impact Fall for the Elderly based on Wearable Inertial Sensors

Under sensor_data.zip file, there are 32 sub folders named by subject ID (e.g., SA06). Under each sub folder, it includes all the motion files from the corresponding subject. The naming rule of the motion file is explained here. Take "SA06T01R01.csv" as an example, "SA06" means Subject ID is 06; "T01" means Task ID is 01; "R01" means Trial ID is 01. Except Task 01, 11, 12 and 17, they are required for 1 trial while other tasks normally have 5 trials. However, due to Bluetooth disconnection, signal sychronization and miscounting issue, some tasks could have 4 trials or 6 trials (Note: SA01~SA05 were the subjects for pilot test, we excluded them. Due to system error, SA34's data was missing.). For each motion file (.csv), it contains 11 columns which are TimeStamp(s), FrameCounter, acceleration (unit: g); gyroscope (unit: °/s) and euler angle(°) along three axes.

Under label_data.zip file, there are 32 label files named by subject ID. For each label file, there are 6 columns: Task Code (Task ID), Description, Trial ID, Fall_onset_frame and Fall_Impact_frame. The last two columns are based on sychronized video reference. Take the first record in SA06_label.xlsx (header is not considered) as an example, it means the fall onset frame and fall impact frame are 130 and 208 in the corresponding data file (SA06T20R01.csv), respectively.