The amount of rotation of the knees. When standing square to the target, the value is 0. As you turn away on the backswing the knees close (45 degrees maximum). The knees open during the downswing.
The amount of rotation of the hips about the spine. When standing square to the target, the value is 0. As you turn away on the backswing the hips close (45 degrees maximum). The hips open during the downswing.
The amount of rotation of the shoulders about the spine. When standing square to the target, the value is 0. As you turn away on the backswing the shoulders close. They then open during the downswing.
The relative rotation (difference) betwen the hips and shoulders. For example, if the hips rotate 40 degrees and the shoulders rotate 90 degrees, the X Factor equals 50 degrees.
Bending is forward/backward rotation. Thus hip bend is the amount of flexion (forward bend) or extension (backward bend) of the pelvis. This angle is measured from a horizontal line (level ground).
The relative bending between the shoulders and hips is spine bend. It gives and indication of wether the back is extended or flexed. In your normal standing position, spine bend is 0 degrees.
Shoulder bend is the amount of flexion (forward bend) or extension (backward bend) of the section of the back near your shoulder blades (representing the upper torso or both shoulders). This angle is measured from a horizontal line (level ground).
Th is angle is the sideways tilting (lateral bending) of the hips and is measured from a horizontal line (level ground).
The relative tilting between the shoulders and hips is spine tilt. It gives an indication of wether the back is laterally bent to the right or to the left. In your normal standing position, spine is 0 degrees.
This angle is the sideways tilting of the shoulders and is measured from a horizontal line (level ground). This tilting is also referred to as lateral bending, with R to the right and L to the left of your normal, upright posture.
This is the relative bending angle between the trail heel-knee-hip. It gives and indication of wether the knee is extended or flexed. In your normal standing position, knee flex is about 180 degrees.
This is the relative bending angle between the lead heel-knee-hip. It gives and indication of wether the knee is extended or flexed. In your normal standing position, knee flex is about 180 degrees.
Lead knee lateral movement is the sideways motion of the knee and is measured as a distance relative to the adress position. Typically a right-handed golfer moves the lead to his/her right (away from the target) during the backswing and then to the left (toward the target) during the downswing.
Trail knee lateral movement is the sideways motion of the knee and is measured as a distance relative to the adress position. Typically a right-handed golfer should not move his trail knee during the backswing and then to the left (toward the target) during the downswing.
Hip sway is the sideways (lateral) motion of the hips. It is measured as a distance relative to the adress position. Typically a right-handed golfer moves the hips to his/her right (away from the target) during the backswing and then to the left (toward the target) during the downswing.
Shoulder sway is the sideways (lateral) motion of the shoulders. It is measured as a distance relative to the adress position. Typically a right-handed golfer moves the shoulders to his/her right (away from the target) during the backswing and then to the left (toward the target) during the downswing.
Head sway is the sideways (lateral) motion of the head. It is measured as a distance relative to the adress position. Typically a right-handed golfer moves the heads to his/her right (away from the target) during the backswing and then to the left (toward the target) during the downswing.
Hand sway is the sideways (lateral) motion of the hand. It is measured as a distance relative to the adress position. Typically a right-handed golfer moves the hands to his/her right (away from the target) during the early part of the backswing and then to the left (toward the target) after hands reach hip level. During the downswing they first move away from the target and the rapidly toward the target..
Hip lift is the vertical (up/down) movement of the hips. These movements are measured relative to the height of the adress position. Increasing values are indicative of upward motion whilst decreasing numbers show downward movement.
Shoulder lift is the vertical (up/down) movement of the shoulders. These movements are measured relative to the height of the adress position. Increasing values are indicative of upward motion whilst decreasing numbers show downward movement.
Head lift is the vertical (up/down) movement of the head. These movements are measured relative to the height of the adress position. Increasing values are indicative of upward motion whilst decreasing numbers show downward movement.
Hand lift is the vertical (up/down) movement of the hands. These movements are measured relative to the height of the adress position. Increasing values are indicative of upward motion whilst decreasing numbers show downward movement.
Hip thrust is the forward/backward motion of the hips. It is measured as a distance relative to the adress position. Increasing numbers mean that the hips are getting closer to the ball while decreasing values indicate movement away from the ball.
Shoulder thrust is the forward/backward motion of the shoulders. It is measured as a distance relative to the adress position. Increasing numbers mean that the shoulders are getting closer to the ball while decreasing values indicate movement away from the ball.
Head thrust is the forward/backward motion of the shoulders. It is measured as a distance relative to the adress position. Increasing numbers mean that the head is getting closer to the ball while decreasing values indicate movement away from the ball.
Hand thrust is the forward/backward motion of the shoulders. It is measured as a distance relative to the adress position. Increasing numbers mean that the hands are getting closer to the ball while decreasing values indicate movement away from the ball.
Max XF compared to XF at top of the backswing.
Hip rotation speed is the component of angular velocity of the hips about the spine. It does not include the components due to tilting and bending. It represents how fast the hips are rotating about the long axis of the spine.
Shoulder rotation speed is the component of angular velocity of the hips about the spine. It does not include the components due to tilting and bending. It represents how fast the shoulders are rotating about the long axis of the spine.
The speed of the hands is calculated as d(RH)/dt. RH = rX + rY + rZ (the displacement of the sensor on the hand measured in the global coordinate system). It represents how fast the hands are moving.
Head bend is forward and backward rotation of the head. Bending (flexion) is measured from the horizontal. Thus, wiyh the head upright the angle would be 90 degrees, whilst looking down (face parallel to the ground) is 0 degrees.
Head tilt measures the sideways (lateral) tilting of the head relative to the horizontal. With the head straight, the angle is 0 and from this position the head can tilt to the right (R) or left (L).
Arc width is the distance between the sensor on the hands and the one in between the shoulder blades. When the numbers for this parameter decrease, the hands are getting closer to the shoulders and increasing values mean that the hands are moving further away from the shoulders.