Overall Efficiency Grade: 54.00

Mobility, Flexibility & Stability Screening

Jonathan is a “neutral” mover. He has a “neutral” thoracic with 50 degrees of rotation to the right and 50 degrees to the left. His scapular retraction is also “neutral.” Retraction was 6 inches in both scaps. He is “neutral” in internal hip rotation and “tight” in external hip rotation. The core has ample stability.

Force Plate Jumps

Jonathon had leg-to-leg balance in his jump tests. Counter movement jumps were equal to squat-pause jumps. CMJ had a lift off force at 223% BW while SJ were 228% BW. This gives him some options in a loading mechanism.

Force Plate Swings

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

Back leg torque numbers are good at 50 Nm which is above the 45 Nm we are looking for.    Leg to leg transfer rates are an area he can gain speed– shown by his x-axis timing numbers. He loses his connection to the ground with his back leg force prior to rotation. This is an area we can improve with him and create more adjustability. That will be important, as he doesn’t turn particularly fast and there isn’t a great deal of chance we are going to make him turn any faster. Torque force is preferred method of speed at 140 Nm on the front leg.

KVEST Sequencing & Rotational Speeds

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

Jonathon has a pretty efficient swing. He doesn’t turn particularly fast, but gets connected in his swing well. Hip speeds are “fair” on the “Real Speed” scale at 570 deg/sec. Torso values are “below average,” at 750 deg/sec. Lead arm values are low at 1000 deg/sec. Wrist values are good at 1900 deg/sec.

Bat Sensor Data

Bat speed numbers ranged from 64-66 mph which is in the bottom quarter of the org. He turns the barrel early into the zone very well and gets on plane early. Attack angles were 14-22 degrees depending on the timing of ball strike, but he attacks under the ball very well. He lands with a bit more than “average” forward posture tilt. Attack angle numbers reflect this and the ball low in the zone will be a benefit for him. However, players in this much “tilt” tend to struggle with the 4 seam fastball with good velocity at the top of the zone.   If this is a concern, he will need to land in more of an upright posture. Time to impact was high at 170-190 milliseconds.

Summary & Recommendations

• I don’t see us creating more bat speed with Jonathon because he’s already fairly efficient, however we can help his adjustability by getting his back foot to maintain pressure into rotation.

• If the ball at the top of the zone is a concern, he’ll have to land more upright than his current preferred posture (which is conducive to the ball down).