Overall Efficiency Grade: 41.00

Mobility, Flexibility & Stability Screening

Eric displayed excellent pelvic control during the Pelvic Tilt test. He struggled with both Pelvic and Torso disassociation, which may cause trouble creating torque in the swing.

He had limited depth in his squat tests. This may be related to the 2018 meniscus tear. His ankle mobility was good.

Thoracic spine rotational capabilities are neutral approaching tight 50 degrees to the left and 40 degrees to the right.

Shoulder internal and external rotation was normal for a right-handed thrower. Shoulder flexion was good as well.

We were able to get 3-4 fingers under both of his scaps and a slight winging of the right side. Team trainers should check this out.

He had trouble elevating the left arm in the Reach, Roll and Lift test and both arms had shaking throughout the screen. Scapular strength should be a focus of his strength plan.

Eric had a 6” scap retraction on both sides which will require a bigger than average upper body loading mechanism.

Ankle stability was good in the single leg balance test. He passed the Glute Bridge test, but showed small core instability.

His hip mobility is neutral at 45-50 degrees in all directions.

His side bend of only 40 degrees may cause posture issues as a right handed hitter.

He passed all the wrist and cervical screens.

Force Plate Jumps

Eric has a balance between his two legs. His right leg is 2% more dominant than his left in the jumps which is lower than the standard deviation, thus considered perfectly balanced. His rate of force production was also equal on the counter movement jump and the squat-pause jump. CMJ was at 282% BW where the squat jumps were at 279% BW. This means he has freedom in a loading mechanism due to his equal rate of force production.

Force Plate Swings

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

Eric loads in his toes, and his back leg loading numbers are slightly low at 92% of his body weight. He does hold good force on the way out in his positive move. Back leg torque numbers are slightly low, with little counter-rotation of the hips at 23 Nm.

Front leg force was low and the rate of force production dissipates over a long period of time. He has 150% of BW in his front leg. He tends to want to create speed horizontally. His back leg x-axis numbers are slightly aggressive (13% BW) which means his forward move is too fast despite being small. His front leg resisting force on the x axis is 75% BW, which is also high. This means he is pushing away from his back shoe versus advancing while still attaching to the ground with his back shoe. Front leg torque force is at 75 Nm which is excellent.

KVEST Sequencing & Rotational Speeds

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

Eric shortens the amount of stretch hjs body needs to create good energy transfer. Therefore his turn is more of a “one piece” turn and has limited speed gains up the chain.   Hip turn speed of 717 deg/sec is “good” for his body type on our “real speed” scale. He gets slightly below average build in hip to core transfer due to his short changing his scap load and stretching his core completely. Torso values are 888 deg/sec which is in the “average” category. Lead arm values have minimal gains at 975 deg/sec and wrist speeds are good at 1800.

Bat Sensor Data

Bat speed was good, bordering elite at 74-77 mph. Attack angles were ideal from 8-11 degrees. TTI was good at 165 milliseconds consistently. Rotational acceleration suffered at only 6-7G’s, which measures the tightness of the turn. That coincides with his lack of complete stretch in the load. Improving this metric will improve TTI. From the graph below, despite bat speed being good, he manually manipulates his hands in the swing and cuts off, out of the zone, early.

Summary & Recommendations

• Work keeping attached to back foot for as long as he can into rotation.

• Larger scap load to increase core tightness for better energy transfer instead of torqueing torso to take slack out which will create better energy transfer up the chain and lower TTI.