Overall Efficiency Grade: 59.5

Mobility, Flexibility & Stability ScreeningForce Plate SwingsKVEST Sequencing & Rotational SpeedsBat Sensor DataSummary & Recommendations

Mobility, Flexibility & Stability Screening

Payton is in the “stiff” mobility category. His thoracic mobility was in the “stiff” category at 20 degrees of rotation to the right and left. He lacks pelvic control in his anterior tilt isolation which will limit energy transfer into the upper body. There was vibration in the lower back during that test, which shows the lower abdomen is more developed than the lower back. He was good in the pelvic rotation test, which indicates that he will have an ability to disassociate his upper and lower body efficiently. Torso disassociation was good. This will give him the ability to create energy transfer through torque.

Joe failed the overhead squat test due to limited hip mobility. He has core stability which will allow ultimate energy transfer speed up the chain.

He has weakness in the scapular region, which will help reduce torque through his upper body anchor. His scapular retraction was in the “stiff” category. Shoulder flexion was good, as was external rotation. Internal shoulder rotation was tight on the throwing arm.

Hip rotational mobility was “stiff.” He was able to turn 15 degrees in the right internally and 15 degrees to the left. Externally, he was 10 degrees on the right and 15 degrees to the left. This will need to be improved upon – ideally, at least to 25 degrees in each test.

His lower body showed good right leg stability and below average left leg stability, and his glutes stabilized very well during the glute bridge test.

Side bend was adequate in both directions.

All wrist and cervical screens were a pass.

Force Plate Swings

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

Payton loads into his whole back foot. Back leg loading numbers are good at 101% of his body weight and he holds that well into his forward advance.

Front leg force was average and the rate of force production was average as well. He has 160% of BW in his front leg. 200% is the number we are trying to hit. He’ll need a more violent interaction with the ground with his front heel, once it plants. His preferred method of creating speed is horizontal force. He has 15 Newtons of torque in his back leg, which is lower than the 45 Nm we are looking for. He externally rotates his back shoe out slightly in the load, which will lower the back leg torque reading. His front leg resisting force on the x axis is 55% BW, which is average. However, the x-axis timing number is 80% or higher on most swings which shows he’s turning into his landing (precisely what we want). This will make for better adjustability.

KVEST Sequencing & Rotational Speeds

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

Turn speeds are excellent on our “Real Speed,” scale. Hip turn speed of 570 deg/sec is “Average” on our “Real Speed” scale. He gets good build in hip to core and core to lead arm transfer although they aren’t always “connected” due to the amount of inward torso turn he gets. This just needs to be factored into a “gap to gap” approach. Torso speeds around 850 deg/sec are “average” on the Real Speed scale. Lead arm values get good build at 1160 deg/sec and wrist speeds are “good” at 1950 deg/sec. There’s nothing alarming in his sequencing, we didn’t already know (internal shoulder rotation), but we will have to just make sure approach, and what his body “wants” to do, matches up.

Bat Sensor Data

Bat speeds were average for age at 67-72 mph on a Blast sensor. Attack angles to the ball were steep at minus 5 to minus 15 degrees. This would indicate that he needs to work the body turning the bat under the ball, versus just using the hands. Rotational acceleration is low at 10-15 G’s and a byproduct the lack of torque / sequencing in the swing. Time to impact was very good at 130 to 150 milliseconds. This can potentially add to good adjustability.

Summary & Recommendations