Table 1.

Steps of data windowing.

Type of windowing	Step	Window	Requirements	Examples
Temporal	1	Session time	Start and end timepoints of session	Australian football: remove device events that were recorded before the starting whistle and after the final siren Military Training: remove device events recorded before or after the drill/training/exercise of interest (including instruction time)
	2	Stoppage time	Start and end timepoints of scheduled and unscheduled stoppages	Field hockey: remove device events recorded during halftime Basketball: removing device events recorded during timeouts Cricket: remove device events recorded during a rain break Military Training: remove device events recorded during breaks, instruction time, and down time while waiting on remainder of unit to complete drill/exercise of interest.
Temporospatial	3	Group participation time	Timepoints of when a group of interest enter and leave the area of activity or when the individual leaves an area where certain groups must remain	American football: remove device events for the defensive players when the offensive players are on the field Netball: remove device events recorded by a goal-keeper when the goal-shooter on the same team is taking a shot Military Training: remove device events from support units and groups supporting training activity before switching roles.
	4	Individual participation time	Timepoints of when individuals enter or leave the area of activity during the session	Lacrosse and Rugby: remove device events recorded when a player was on the bench or seeking medical attention Ice Hockey: remove device events recorded when a player is in the penalty box Soccer: remove device events recorded after a player is stretchered from the field with a broken leg Military Training: remove device events recorded while Service Member is in line or waiting on next opportunity to perform drill
	5	Individual active participation time	Start and end timepoints of individuals ‘actively’ participating in the session	Boxing: remove device events recorded when a boxer is in a neutral corner after knocking down the opponent Military Training: remove device events occurring when Service Member is not actively performing or engaging in the drill/exercise of interest.