Table 4

Descriptive statistics for data management markers

AppleFitbitPolar
Step data
Participants w/ any datan=4n=9n=9
Days recorded
 Mean (SD)2.78 (3.56)13.78 (2.54)12.44 (4.39)
 Range0–99–161–15
Obs. minutes per day
 Mean (SD)90.18 (60.16)599.35 (159.76)NA
 Range36.50–160.43397.87–873.55NA
% drop instances
 Mean (SD)7.49 (2.67)1.44 (1.02)NA
 Range5.56–11.420.26–2.82NA
% high speed
 Mean (SD)15.96 (9.67)0.17 (0.19)NA
 Range4.63–27.40–0.51NA
Missing days
 Mean (SD)0.00 (0.00)0.44 (0.88)0
 Range00–20
HR data
Participants w/any datan=2n=9n=9
Days recorded
 Mean (SD)1.44 (3.13)13.56 (2.24)12.44 (4.39)
 Range0–98–151–15
Obs. minutes per day
 Mean (SD)97.71 (62.17)1015.19 (250.33)NA
 Range53.75–141.67713.20 (1363.23)NA
% drop instances
 Mean (SD)30.74 (5.32)0.01 (0.01)NA
 Range26.98–34.510–0.03NA
% HR Jump
 Mean (SD)0.47 (0.00)1.05 (1.21)NA
 Range0.47–0.470.22–4.48NA
Missing days
 Mean (SD)1.33 (2.69)0.67 (1.00)0
 Range0.00–7.000.00–3.000
  • .HR, heart rate; NA, not available; Obs., observed; w/, with.