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Table 1 Phase definitions for drinking task.

From: Three-dimensional kinematic motion analysis of a daily activity drinking from a glass: a pilot study

Phase name Start Detected by End Detected by
Reaching (includes grasping) Hand movement begins Hand marker velocity surpassed 2% of the peak velocity Hand begins to move towards the mouth with the glass Elbow angle is in maximal extension
Forward transport (glass to mouth) Hand begins to move towards the mouth with the glass Elbow angle is in maximal extension Drinking begins Hand marker velocity returned to (5 %) of the peak velocity
Drinking Drinking begins Hand marker velocity returned to (5 %) of the peak velocity Drinking ends Hand marker velocity surpassed 5% of the peak velocity
Back transport (glass to table, includes release of grasp) Hand begins to move to put the glass back to table Hand marker velocity surpassed 5% of the peak velocity Hand releases the glass and begins to move back to initial position Elbow angle is in maximal extension
Returning (hand back to initial position) Hand begins to move back to initial position Elbow angle is in maximal extension Hand is back resting in initial position Hand marker velocity returned to 2% of the peak velocity