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 |