Table 1 Definition of movement behaviour types [14]

LIE

Length of periods lying. Lying is detected if the thigh inclination is above 45°and also the hip inclination is above 65°.

SIT

Length of sitting periods. Sitting is detected if the inclination of the thigh is above 45 and lying is not detected.

STAND

Length of periods standing still. Still standing is detected if the inclination of the thigh is less than 45 and no movement of the thigh is detected.

MOVE

Length of periods moving. This is an activity used if none of the non-moving activities lying, sitting, or standing is detected. It will normally correspond to every move, including walking, running, cycling, or sports activities.

MOVE-WW

Length of periods moving. This is an activity used if none of the non-moving activities lying, sitting, or standing is detected. It will normally correspond to every move, including running, cycling, or sports activities, without walking (WW).

WALK

Length of periods walking. Walking is detected if the standard deviation on the longitudinal axis of the thigh is between 0.1G and 0.72G.

SLOW WALK

Length of periods with walking speed less than 100 steps pr. minute.

FAST WALK

Length of periods with walking above (or equal) 100 steps pr. minute (only the activity walk is used for this calculation, periods with run is not included).