Mobility Screen

Makenna is in the neutral mover category.

She was able to control the movement in the pelvic tilt test, but did have a vibration during the screen indicating an imbalance between the lower abs and back muscles.  She passed both the pelvic and torso rotation screens.

Makenna passed the full overhead squat screen showing good thoracic extension along with hip and ankle mobility.  Thoracic spine rotation was 60-65 degrees in both directions. Side bend was adequate at 35 degrees to both sides.

Shoulder external rotation was good.  She was limited in her right side shoulder internal rotation.  Left side was a pass for internal rotation.    She passed the lat length and impingment tests.  Her right scap has a more advanced muscle build than the left as we were able to get under the left scap, but not the right.  She was able to complete the reach, roll and lift test on both sides.  Scapular retraction was 5.5”.

Makenna passed the toe touch screen.  She showed excellent single leg balance on the right side at 15 seconds and was average on the left at 7 seconds.  Hip mobility was 45 degrees in both directions on both sides.  She passed the glute bridge test showing a stable core throughout the screen.

All wrist and cervical screens were passed.

Force Plate Swings

Below is video of the swing analysis. I will walk you through this matched up with video.

Makenna uses a ball of foot pressure load in her rear foot.  She creates 98% body weight (143 lbf) vertically in her rear leg.  She creates good force production vertically in her lead leg at 203% body weight (297 lbf).  Her rate of force production is also good here as well.  Her horizontal force in her lead leg is 85% body weight and also has a fast rate of force development.  Her x-axis timing is near 100% which is should allow her to have to opportunity to make decisions later.

KVEST Sequencing & Rotational Speeds

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

Makenna presents as an in sequence swing pattern (pelvis, torso, upper arm, wrist). Her pelvis rotates at 624 deg/sec. There is a slow deceleration pattern caused by an inward rotation of -15 degrees into launch and 84 degrees at contact.  The 99 degrees of rotation in this case allows for a slow acceleration and deceleration.  By limiting the turn distance she can accelerate and decelerate in a smaller window of time. Her torso speed was 814 deg/sec., which can be helped by creating a better deceleration pattern and taking out the slack between the pelvis and the scap. The upper arm speed was 1151 deg/sec.  A better gain will be seen with better scapular resistance and torso deceleration (rotary torso stability).  Her wrist speed was 1520 deg/sec.

Bat Sensor Data

Makenna produced bat speeds in the 51-56 mph range which is on the low side.  Her attack angles were 4-12 degrees which are in an acceptable range for incoming pitch angle. Her vertical bat angle was between -27 to -40 degrees which is consistent with hitting middle to bottom of the zone.  We look for -20 to -30 at the top of the zone and -3 to -40 at the bottom of the zone.  Her time to impact was 160-170 milliseconds.  This speed is average, but can get better to allow for her to make decisions and launch her swing later.  By taking the slack out of her swing that number should continue to decrease.  Makenna’s rotational acceleration was 10-13 G’s.  This number suggest there is some looseness in her turn.  Her ball exit speeds were 58-62 mph.

Summary & Recommendations

• Mostly physiological here.  Better rotary stability in her legs and torso. This can be helped with medicine ball throws, PVC check swings, and anti-rotational work. 

11.20 Live Retest – KVest Data

Makenna presents a swing that is out of sequence (pelvis, torso, wrist, lead arm). Her hands get started very early in her swing, which is evident by the yellow line traveling upwards before the torso and arm.  She does create good separation of her swing into heel strike, creating an x-factor stretch of -12.45 degrees, and she increases that stretch into her first move to -17.99 degrees. Despite this good separation, her overall turn speeds are low, particularly because of poor deceleration in her swing. This is evident on how both the pelvis and torso lines of her graph plateau in spots during the deceleration phase.  Her hip speeds are good at 601 deg/s, but her torso speed is poor at 685 deg/s.  She gets a decent gain from torso to lead arm, which climbs to 1121 deg/s, but her overall speed is below average at 1536 deg/s.  Better deceleration of her pelvis and torso will lead to huge speed gains. 

11.20 Live Retest – Force Plate Data

MaKenna creates a ball of foot pressure load and advance.  She does get some heel involved as she is almost nearing the end of her stride phase.  Her rear leg vertical force holds pretty good, although she does have more of an up and down stride pattern.  Her lead leg vertical force is good at 199% body weight and also has an above average rate of force production.  Her horizontal lead leg force is also good at 93% body weight and also has an above average rate of force development.  Her x-axis timing is great as she is holding rear leg vertical force and turning into her landing.  

11.20 Live Retest – Blast Data

Her bat speeds ranged from 51-55 mph, which is below average.  Her time to contact was average, between 150-170 milliseconds and her attack angles were inconsistent, ranging from -15 to 15 degrees.  This could be caused by poor timing, typically the later the hitter is, the more steep the attack angles. Her VBA ranged from -16 to -32, which can cover a variety of pitches, primarily at the top of the zone. Her rotational acceleration was average at 9-10 Gs.  Her one ball she put in play had an EV of 45.6 mph.