For player specific terminology, we will use the phrase ‘bottom arm’ to refer to the entire limb distal to the shoulder (i.e., upper arm, forearm, hand) in which the hand is gripping the shaft near the end the shaft. We will use the phrase ‘bottom hand’ when referring specifically to the hand of the bottom arm. We will use ‘top arm’ and ‘top hand’ to refer to the arm/hand that grips the shaft between the bottom hand and stick head. A right handed shot is one in which the right arm is the top arm; a left handed

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For player specific terminology, we will use the phrase ‘bottom arm’ to refer to the entire limb distal to the shoulder (i.e., upper arm, forearm, hand) in which the hand is gripping the shaft near the end the shaft. We will use the phrase ‘bottom hand’ when referring specifically to the hand of the bottom arm. We will use ‘top arm’ and ‘top hand’ to refer to the arm/hand that grips the shaft between the bottom hand and stick head. A right handed shot is one in which the right arm is the top arm; a left handed shot is one where the left arm is the top arm.

For the lower extremity, we will use the term ‘drive leg’ to refer to the leg that is planted on the ground pushing the player forward. Likewise, we will use the term ‘lead leg’ to refer to the leg that is planted in front of the player while shooting. Analogous terms for ‘lead leg’ are ‘plant leg’ or ‘blocking leg.’ When shooting right handed, the drive leg is the right leg and the lead leg is the left leg (vice versa for shooting left handed).

The phases of the shot and the discrete events separating each phase are described in Table 1 and described in more detail below.

Approach. The approach begins with the player initiating movement and ends when the foot of the drive leg contacts the ground. During this phase, the player is taking several steps advancing towards the goal with the intent to shoot. The number of steps, the style of the approach (e.g., stepping forward, sideways, backwards, cross-over, hopping, etc.), and the velocity of the approach varies between players. However, what is common among all the approach styles is that it ends when the drive leg contacts the ground.
Crank back. The crank back is analogous to the wind-up or cocking phase of throwing a ball. This phase consists of the preparatory movements that proceed accelerating the stick (i.e., angular motion) with the intent of releasing the ball towards the goal. The crank back begins with the foot of the drive leg contacting the ground and ends when the top arm reaches maximum elbow flexion. If a 3D motion capture analysis is completed, an alternative ending discrete event would be the moment when stick angular acceleration velocity is continuously in the same direction as during the Stick Acceleration phase (next). We have further sub-divided the crank back phase into two sub-phases (A and B).
o Crank back – A. The Crank back – A phase begins when the foot of the drive leg contacts the ground and ends when the foot of the lead leg contacts the ground. This phase could also be described as a ‘drive step’ when focusing on the lower extremity.

o Crank back – B. The Crank back – B phase begins with lead foot contact and ends when the elbow of the top arm reaches maximum flexion. The movements in this phase are still preparatory movements to accelerating the stick towards the goal and would still be considered ‘wind-up’ movements.

Stick acceleration. Stick acceleration begins when the elbow of the top arm has reached maximum flexion and then starts extending. This phase ends with ball release. The duration of this phase is very short and dynamic.
Stick deceleration. Stick deceleration begins once the ball release has occurred and ends when the elbow of the top arm has reached maximum extension.
Follow-through. The follow-through phase begins when the top arm has reached maximum extension and ends when trunk rotation has been terminated.
Recovery. The recovery phase begins with the end of trunk rotation and represents the movements the player needs to make to prepare for the next task.

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