Table 2.  ActiGraph output and METs [mean (SD)] for each activity.

Intensity

Predicted METs*

ActiGraph (counts·min-1 )

ActiGraph (counts·2s-1)

Sedentary (standing quietly)

1.2

24 (54)

0.8 (1.8)

Very light (catching ball)

2.5

1563 (879)

52.1(29.3)

Light (walking, 4 km.hr-1)

3.2

2163 (783)

72.1 (26.1)

Moderate (walking, 6 km.hr-1 )

4.3

4242 (1092)

141.4 (36.4)

Vigorous (running, 8 km.hr-1 )

6.7

5661 (1155)

188.7 (38.5)

Hard (jumping on the spot)

10

12402 (2970)

413.4 (99.0)

* METs estimated from previously published work. METs for standing and catching: (Ridley and Olds, 2008): mean adult METs; METs for walking, 4 km.hr-1, walking, 6 km.hr-1, running, 8 km.hr-1: (Harrell et al., 2005) ; METs for jumping: (Ainsworth et al., 2000) : moderate jumping, code=#15552 .