{
  "fields": [{"id":"_id","type":"int"},{"id":"variable","type":"text"},{"id":"code","type":"text"},{"id":"description","type":"text"},{"id":"ref","type":"text"}],
  "records": [
    [1,"group","HW","Health and Wellness Education",""],
    [2,"group","TC","Tai Chi",""],
    [3,"condition","DTO","Dual-task standing condition; two trials: DTO1 and DTO2",""],
    [4,"condition","QSO","Eyes-open standing condition; two trials: QSO1 and QSO2",""],
    [5,"condition","QSC","Eyes-closed standing condition; two trials: QSC1 and QSC2",""],
    [6,"Total Duration",""," Total Duration (seconds): total duration captured by the MobilityLab (accelerometer) during standing",""],
    [7,"Total sway area of the accelerometer",""," Total sway area (m^2/s^5): total sway area, computed as the area included in the sway trajectory per unit of time  ",""],
    [8,"95% ellipse sway area of the accelerometer ",""," 95% ellipse sway area (m^2/s^4): area of the 95% confidence elipse encompassing the sway trajectory in the transerve plane",""],
    [9,"Mean velocity of the accelerometer (AP)",""," Mean velocity (AP) (m/s): mean velocity of the lumbar's trajectory in the anterior-posterior direction ",""],
    [10,"Mean velocity of the accelerometer",""," Mean velocity (m/s): mean velocity of the lumbar's trajectory in the transver plane",""],
    [11,"Mean velocity of the accelerometer (ML)",""," Mean velocity (ML) (m/s): mean velocity of the lumbar's trajectory in the medial-lateral direction ",""],
    [12,"Mean distance of the acceleration trajectory (AP)",""," Mean distance (AP) (m/s^2): mean distance of the lumbar's acceleration trajectory from the center of this trajectory in the anterior-posterior direction",""],
    [13,"Mean distance of the acceleration trajectory",""," Mean distance (m/s^2): mean distance of the lumbar's acceleration trajectory from the center of this trajectory in the transverse plane",""],
    [14,"Mean distance of the acceleration trajectory (ML)",""," Mean distance (ML) (m/s^2): mean distance of the lumbar's acceleration trajectory from the center of this trajectory in the medial-lateral direction",""],
    [15,"Path length of the acceleration trajectory (AP)",""," Path length (AP) (m/s^2): total length of the lumbar's acceleration trajectory in the anterior-posterior direction",""],
    [16,"Path length of the acceleration trajectory",""," Path length (m/s^2): total length of the lumbar's acceleration trajectory in the transverse plane",""],
    [17,"Path length of the acceleration trajectory (ML)",""," Path length (ML) (m/s^2): total length of the lumbar's acceleration trajectory in the medial-lateral direction",""]
]}