Mobility, Flexibility & Stability Screening

Paige is a loose mover.  She sets up in a neutral posture. She has the ability to create posterior and anterior tilt as seen in our screening. She did have vibration/shaking in the test as she went from anterior to posterior. This is a result of either lack of strength or control of the lower abdominals. In her pelvic disassociation test she lacked stability in the torso, but was better with assistance.  This is  likely due to lack of stability (obliques/erectors). She did pass the torso disassociation test, showing that she has adequate ability to stabilize lower body. Paige passed the overhead squat.

Recommendations are to incorporate lower abdominal strength work and anti-rotational work.

Paige is a loose thoracic mover at 70 degrees of rotation to the right and 70 degrees of rotation to the left.  She is also a loose mover though her hips at 70 degrees right internal and 50 degrees right external. She is 70 degrees left internal and 50 degrees right external. Scapular retraction also comes in as neutral at 3.5 inches of retraction.

Paige has good external and internal rotation in the shoulders. She showed scapular strength and control in the scapular palpation screen and reach, roll, and life test.

Paige was able to hold the flute bridge test for the entirety of the 10 seconds without displaying any core instability.  She did however say she felt that her lower back was holding the tension as opposed to the glutes, This indicates either glute weakness or the need to arrange legs/hips in a better position to access the glutes properly.

Paige passed all wrist deviations, flexion, extension, as well as forearm pronation and supination. Paige passed cervical screen as well.

Force Plate Swings

Paige creates 100% body weight of vertical force in her rear leg. She gets to 149% of her body weight in lead leg vertical force. We generally like to see the rear leg double the front leg in force production. The horizontal force in the rear leg is 5% body weight. The lead leg produces 59% horizontal force. Her x-axis timing is 100%, which is a slow transfer. It suggests pushing out of rear leg and pausing on lead leg before committal to the ball. The rear leg produces 16n of torque force, but it comes with a middle of the rear foot load. We would like to see a heel load for stability purposes. The lead leg produces a high 153n of torque force, which is her preferred method of force production.

KVEST Sequencing & Rotational Speeds

The 3d readings are on kinematic sequencing and rotational speeds.

Paige has very fast pelvic turn but doesn’t have very good speed gains up the kinetic chain.  Being a loose mover she will need a big loading mechanism to take the slack out of her body.  She counter rotates her hips -11 deg as she begins launch.  Torso is also counter rotated to a high degree entering launch at -37 deg.  The high degree to turn in is also seen in her deceleration pattern as her hips, torso, and arms all “brake” slow.  A quicker braking system will transfer energy more efficiently and quicker.  Her pelvis speed is elite at 762 deg/sec. Torso value is 802 deg/sec which is below average and very little gain over the pelvis.  Her lead arm gains are 985 deg/sec. which is also below average and very little gain over the torso.  Her hand gains are great at 2008 deg/sec., but come with a longer time to impact. Torso side bend comes in at 41 deg at contact making vertical bat angle ideal, which allows for less miss hit balls in play.

Bat Sensor Data

Bat speed averaged 61.8 mph with a high of 64.  Time to impact came in at an average of 180 milliseconds which is below average and will force an earlier committal to the swing.  This was outlined in k-motion with an over rotated torso resulting in a longer path and forced early arm acceleration.  Attack angle is consistent at 12 degrees. Her vertical bat angle comes in at an average of 36 with high being 44 and low being 29. Paige’s rotational acceleration comes in at 6.7g’s which is on the slow side.

Summary & Recommendations

• As a loose mover the loading moves need to be bigger to take out slack.

• Over rotation of the torso into launch cause the arms to engage earlier than needed and limit speed gains.  Addressing core stability and scap load should help correct this. 

• Time to impact needs to be cut as it will force early committal.  This can be done by taking out the slack before launch and allowing for better gains between segments.