PhysActBedRest-package
                        Mark Bedrest
markbr_y_wa             Bedrest Marking, Youth Waist
markbr_y_wr             Bedrest Marking, Youth Wrist
timestamp               Timestamp
wa_sj6909_ts            Waist Accelerometer data subject sj6909
wa_sl3611_lts           Waist Accelerometer data subject sl3611
wa_sl3611_timestamp     Waist Accelerometer data subject sl3611
wa_tp5788               Waist Accelerometer data subject sj6909
wr_sj6909_ts            Wrist Accelerometer data subject sj6909
wr_sl3611_lts           Wrist Accelerometer data subject sl3611
wr_sl3611_timestamp     Wrist Accelerometer data subject sl3611
wr_tp5788_cc            Waist Accelerometer data subject sj6909
zPhysActBedRest         Physical Activity Bed Rest Data
