Figure 4
From: Unraveling dynamics of human physical activity patterns in chronic pain conditions
Illustrative example of statistical distances between distributions of activity and rest periods (
and 
in the inset), quantified with the area test statistics (color-area) for: (a) a patient with high pain level (VAS = 7.4) and (b) a healthy pain free subject (VAS = 0).
The higher positive value of 
(
) for the chronic pain patient indicates that in ensemble, activity periods are shorter than resting periods while the negative 
for the healthy pain free subject indicates that activity periods are longer than resting periods.
