Figure 1.
Relationship between accelerometer counts per minute and energy expenditure in METs.
Data included for five of the seven activities (data for lying and sitting excluded due to the high number of zero values).
Table 1.
Energy expenditure (EE) in kcal.kg−1.hr−1 and METs, and accelerometer counts (per minute) for each activity.
Figure 2.
Posterior probability vectors for light, moderate and vigorous activity.
Posterior probability vectors for light, moderate and vigorous activity and the cut points which occur at the points of intersection. Activities corresponding to the observed counts are indicated by the height of the ticks on the x-axis: the shortest ticks represent slow walking and the tallest represent jogging.
Figure 3.
ROC curves including for sedentary, light, moderate and vigorous activity.
Table 2.
Cut points in counts per minute (cpm) for each activity intensity category and their corresponding optimal sensitivity and specificity, and area under the ROC curve (AUC) values.