Chicagoland (773) 739-2170
 

Ryne Chamberlin

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Overall Efficiency Grade: 62.625

 

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

Mobility, Flexibility & Stability Screening

 

Ryne is in the “neutral mover” category. His thoracic mobility was loose at 60 and 75 degrees of rotation to the right and left. He has some lower back vibration in his pelvic tilt isolation which would indicate a more developed lower abdomen than lower back. He failed the pelvic rotation test, which indicates that he will have limited ability to disassociate his upper and lower body very efficiently. Torso disassociation was good. If he gets better at the pelvic dissociation, Ryne will have the ability to create energy transfer through torque.

Ryne failed the overhead squat test with limited ankle mobility. He has core instability which will affect energy transfer speed up the chain. This will be a focus if you do the strength plan.

He has a less developed scapular region, which needs to be a focus of his strength plan. His scapular retraction was in the “neutral” category. Shoulder flexion was good, as was external rotation. Internal shoulder rotation was tight on the right arm, which is common on the throwing arm.

Hip rotational mobility was “neutral.” He was able to turn 45 degrees in the right and left hip internally. Externally, he was 30 degrees on the right and the left.

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

All wrist and cervical screens were a pass.

 

Force Plate Jumps

Ryne has a dangerous unilateral leg bias. His right leg is 25% more dominant than his left which puts him at a high risk category for a hamstring pull. Unilateral leg work needs to be a focus of his training regimen.    Counter movement jumps and squat jumps are nearly equal.  SJ produced 282% BW of force while CMJ produced 264% BW of force. This gives him some freedom in a loading mechanism.

 

Force Plate Swings

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

 

Ryne loads in his whole back foot. Back leg loading numbers are lower than ideal at 92% of his body weight but he does not hold that well into his forward advance. He loses his back foot pressure early in the stride, which will limit adjustability. Because his back foot is turned out in his stance, his back leg torque number is low at 14Nm in the current style. He’ll need to get the back foot straight ahead to improve the torque number.

Front leg force was below average and the rate of force production was limited as well. He has 155% of BW in his front leg. This is a number we want closer to 200%. He’ll need a more violent interaction with the ground with his front heel, once it plants. His front leg resisting force on the x axis is 65% BW, which good. I’d consider him a horizontal force producer. This is also a reason he needs to get more unilateral strength in his left leg. However, his x – axis timing numbers indicate he drifts into his front leg well before turning. This means his front leg is accepting weight that won’t be used for force. He’ll need to keep the back shoe anchored into the ground, into the turn

 

 

KVEST Sequencing & Rotational Speeds

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

 

 

Turn speeds are average on our “Real Speed,” scale but TTI is slower than turn speeds would indicate. He needs to create more stretch through his mobile thoracic for a tighter turn. Hip turn speed of 600 deg/sec is average on our “Real Speed” scale. He gets slightly below average build in hip to core and core to lead arm transfer due to his core instability. Torso speeds of 800 deg/sec is Average on the Real Speed scale. Lead arm values get little build at at 840 deg/sec and wrist speeds are below average at 1353. Kinematic sequences were correct but didn’t have a lot of timing difference between segments and are closer to one-piece turns. He will need more scapular strength and then scapular resistance (load) in order to stretch the core tighter and commit to the ball later, while getting up to full speed quicker. This will improve adjustability and decision making on off-speed pitches.

 

 

Bat Sensor Data

 

Bat speeds were slightly below average for age at 61-63mph on a Blast sensor. Attack angles to the ball were good and in the single digits at 3-8 degrees. Peak hand speeds were 20 mph which is above average and indicative of a linear hand path. Time to impact was average at 185 milliseconds.   The swing path cuts out of the zone early and thus finishes off-plane and flat.

 

Summary & Recommendations

  • Work on hip disassociation for better torque in swing.
  • Get back shoe straight ahead in stance and hold it into the ground during the forward advance, into the turn. This will improve adjustability and decision making on off-speed pitches.
  • Get stronger in the scapular region and find a style that allows for a better scap load during the load/stride process. This will improve speed and reduce time to impact.
  • Improve front foot interaction with the ground with a more forceful heel plant. This will improve overall speed in the swing.
  • Maintain swing arc through finish of swing.

 

 

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