Kineologist HTML Report

PITCH REVIEW

A quick look at the main things to work on in this pitch.

PITCH SUMMARY

THROWING-ARM FINDINGS

  • The chest stayed behind the arm later than expected in the sequence. — High priority
  • The wrist started building speed early in the throw. — Needs attention
  • The chest rotated late compared with the throwing arm. — Needs attention
  • A combination of throwing-arm movements showed a pattern worth reviewing. — Needs attention
  • The throwing elbow stayed high relative to the shoulder as the arm came up. — Worth noting
  • The forearm was still trailing late in the delivery. — Worth noting

ACTION PLAN

WHAT TO WORK ON

1) Try: Think hips first, then chest, then arm — keep the delivery flowing instead of rushing one part.
Watch for: Watch whether the hips, chest and throwing arm move through the pitch in a cleaner order.

2) Try: Let speed build through the arm instead of trying to create hand speed too early.

Watch for: Look for the hand speed to build more smoothly as the pitch moves toward release.

3) Try: Work on letting the hips start the turn and the chest follow at the right time.

Watch for: Watch whether the chest turn lines up more naturally with the throwing arm.

4) Try: Work at controlled effort and focus on a smooth, relaxed throwing-arm sequence.

Watch for: See whether the same throwing-arm pattern repeats across the next few pitches.

5) Try: At easy effort, find a comfortable arm position and avoid deliberately lifting the throwing elbow.

Watch for: See whether the high-elbow shape keeps showing up on the next few pitches.

6) Try: Let the forearm and hand come through smoothly as you move toward release.

Watch for: Look for the forearm to come through a little earlier and more consistently near release.

REFERENCE CHECK

1) Compared with the reference: The biggest throwing-side difference from the selected reference was at the throwing upper arm (60.8°). Use this as a comparison point, not as a sign that the pitch is automatically wrong.

COMPREHENSIVE PITCHING KINEMATIC REVIEW

THROWING-ARM FINDINGS

  • The chest stayed behind the arm later than expected in the sequence. — High priority
Shoulder-line rotation occurred late relative to the forearm-lag event; lag magnitude or persistence may increase severity.
2 conditions contributed to this SEVERE finding:
Shoulder-rotation timing relative to forearm-lag peak: 0.196 normalized pitch time; rule threshold greater than 0.080 normalized pitch time.
Peak forearm-direction lag: 169.8°; rule threshold at least 75.0°.
  • The wrist started building speed early in the throw. — Needs attention
The wrist-speed build peaked early relative to the subject’s own maximum wrist-speed event.
Wrist-speed-build timing relative to peak wrist speed: -0.125 normalized pitch time; rule threshold at most -0.100 normalized pitch time. frame 91
  • The chest rotated late compared with the throwing arm. — Needs attention
The shoulder-line rotation peak occurred late relative to the forearm-lag peak.
Shoulder-rotation timing relative to forearm-lag peak: 0.196 normalized pitch time; rule threshold greater than 0.080 normalized pitch time. frame 80
  • A combination of throwing-arm movements showed a pattern worth reviewing. — Needs attention
Multiple arm-timing / speed conditions contributed to this finding.
3 conditions contributed to this MODERATE finding:
Peak elbow angular speed: 1873.0°/s; rule threshold at least 1800.0°/s. frame 96
Release-window elbow angular speed: 1117.8°/s; rule threshold at least 900.0°/s. release_window
Peak forearm-direction lag: 169.8°; rule threshold at least 70.0°. frame 58
  • The throwing elbow stayed high relative to the shoulder as the arm came up. — Worth noting
The elevated throwing-elbow / upper-arm orientation persisted through part of P2.
P2 elevated upper-arm persistence: 16.4%; rule threshold at least 15.0%. P2
  • The forearm was still trailing late in the delivery. — Worth noting
Forearm-direction lag remained elevated close to release.
Release-window forearm-direction lag: 93.7°; rule threshold at least 75.0°. frame 58

COMPARED WITH THE REFERENCE

No selected-reference comparison rule triggered.

EVIDENCE / DATA-QUALITY FINDINGS

No rule was suppressed by unavailable evidence.

FULL-BODY VALGUS PROFILE

  • Evidence grade: Good
  • STRIDE authority: frame 76 / M_STRIDE / mus_RLEG_calf
  • Hip–shoulder separation at STRIDE: 41.15 deg
  • Lead-knee extension STRIDE→P4: 15.60 deg
  • Pelvis forward-velocity reduction STRIDE→P3: 67.88
  • Forward trunk tilt at P4: 27.87 deg
  • Lateral trunk tilt at P4: 18.71 deg
  • Elbow height at P2: 11.8 cm (4.7 in) below throwing-shoulder height (30.5% of upper-arm length) @ frame 85 [P2]
  • Humerus angle to vertical at P2: 107.73 deg @ frame 85 [P2]
  • Forearm lag angle at P3: 71.80 deg @ frame 104 [P3]
  • Elbow included angle at P2: 92.35 deg @ frame 85 [P2]
  • Elbow angular-speed peak: 1873.02 deg/s @ frame 96 [NATIVE_DERIVATIVE_PEAK]
  • M-event status: M_EVENTS_GOOD
  • Observed M-event sequence: M1:drive_leg@59 → M_STRIDE:lead_leg@76 → M8:trunk_transfer@77 → M14:distal_arm_layback@98 → M18:throwing_shoulder@110 → M21:wrist_release@110
  • External force-plate evidence was not supplied. Ground-reaction force, moment, centre of pressure and impulse remain unknown; no zero values were assumed.
  • M events and muscle values are motion-derived proxies, not EMG or direct force measurements.

FULL PITCH MECHANICS

  • Three-dimensional foot-centre distance at STRIDE: 115.63 cm @ frame 76 [EVENT_VALUE]
  • Forward stride component at STRIDE: 113.25 cm @ frame 76 [EVENT_VALUE]
  • Lateral stride offset at STRIDE: 22.57 cm @ frame 76 [EVENT_VALUE]
  • Stride direction at STRIDE: 11.3° to the pitcher's left @ frame 76 [STRIDE]
  • Lead-foot orientation at STRIDE: 29.3° to the pitcher's right @ frame 76 [STRIDE]
  • Lead-knee flexion at STRIDE: 68.61 deg @ frame 76 [STRIDE]
  • Lead-knee flexion at P2: 70.02 deg @ frame 85 [EVENT_VALUE]
  • Lead-knee flexion at P4: 53.00 deg @ frame 112 [EVENT_VALUE]
  • Lead-hip flexion at STRIDE: 70.1° flexed @ frame 76 [STRIDE]
  • Lead-ankle sagittal flexion at STRIDE: 59.0° toward plantarflexion @ frame 76 [STRIDE]
  • Lead-knee extension-velocity peak: 238.87 deg/s @ frame 67 [NATIVE_DERIVATIVE_PEAK]
  • Hip-to-shoulder separation at STRIDE: 41.15 deg @ frame 76 [STRIDE]
  • Pelvis angular-velocity peak: 779.12 deg/s @ frame 81 [NATIVE_DERIVATIVE_PEAK]
  • Shoulder-line angular-velocity peak: 958.50 deg/s @ frame 82 [NATIVE_DERIVATIVE_PEAK]
  • Forward trunk tilt at P4 / release: 27.87 deg @ frame 112 [P4]
  • Lateral trunk tilt at P4 / release: 18.71 deg @ frame 112 [P4]
  • Peak pelvis midpoint translational speed — global / world space: 277.55 cm/s @ frame 81 [NATIVE_DERIVATIVE_PEAK]
  • Elbow height at P2: 11.8 cm (4.7 in) below throwing-shoulder height (30.5% of upper-arm length) @ frame 85 [P2]
  • Humerus angle to vertical at P2: 107.73 deg @ frame 85 [P2]
  • Forearm lag angle at P3: 71.80 deg @ frame 104 [P3]
  • Elbow included angle at P2: 92.35 deg @ frame 85 [P2]
  • Elbow angular-speed peak: 1873.02 deg/s @ frame 96 [NATIVE_DERIVATIVE_PEAK]
  • Wrist-speed build peak: 26371.21 cm/s² @ frame 91 [NATIVE_DERIVATIVE_PEAK]
  • Wrist speed relative to throwing-shoulder position: 1711.81 cm/s @ frame 105 [NATIVE_DERIVATIVE_PEAK]
  • Peak wrist speed — global / world space: 2040.76 cm/s @ frame 104 [NATIVE_DERIVATIVE_PEAK]
  • Peak throwing-shoulder speed — global / world space: 505.72 cm/s @ frame 82 [NATIVE_DERIVATIVE_PEAK]

COMPARATIVE FULL PITCH MECHANICS

These points show where this pitch looked different from the selected reference.

Measure Subject Reference Difference
Three-dimensional foot-centre distance at STRIDE 115.63 cm 119.15 cm -3.51 cm
Forward stride component at STRIDE 113.25 cm 116.27 cm -3.02 cm
Lateral stride offset at STRIDE 22.57 cm 25.14 cm -2.57 cm
Stride direction at STRIDE 11.3° to the pitcher's left 12.2° to the pitcher's left 0.9° further right
Lead-foot orientation at STRIDE 29.3° to the pitcher's right 27.9° to the pitcher's right 1.5° more off the pitch line
Lead-knee flexion at STRIDE 68.61 deg 67.23 deg 1.38 deg
Lead-knee flexion at P2 70.02 deg 67.76 deg 2.27 deg
Lead-knee flexion at P4 53.00 deg 50.59 deg 2.42 deg
Lead-hip flexion at STRIDE 70.1° flexed 75.3° flexed -5.19 deg
Lead-ankle sagittal flexion at STRIDE 59.0° toward plantarflexion 60.1° toward plantarflexion 1.15 deg
Lead-knee extension-velocity peak 238.87 deg/s 171.75 deg/s 67.12 deg/s
Hip-to-shoulder separation at STRIDE 41.15 deg 45.47 deg -4.33 deg
Pelvis angular-velocity peak 779.12 deg/s 759.21 deg/s 19.91 deg/s
Shoulder-line angular-velocity peak 958.50 deg/s 973.13 deg/s -14.63 deg/s
Forward trunk tilt at P4 / release 27.87 deg 29.82 deg -1.95 deg
Lateral trunk tilt at P4 / release 18.71 deg 20.31 deg -1.60 deg
Peak pelvis midpoint translational speed — global / world space 277.55 cm/s 187.96 cm/s 89.60 cm/s
Elbow height at P2 11.8 cm (4.7 in) below throwing-shoulder height (30.5% of upper-arm length) 13.2 cm (5.2 in) below throwing-shoulder height (34.1% of upper-arm length) 1.4 cm (0.5 in) higher relative to the throwing shoulder
Humerus angle to vertical at P2 107.73 deg 109.94 deg -2.21 deg
Forearm lag angle at P3 71.80 deg 74.26 deg -2.46 deg
Elbow included angle at P2 92.35 deg 89.92 deg 2.42 deg
Elbow angular-speed peak 1873.02 deg/s 1752.39 deg/s 120.63 deg/s
Wrist-speed build peak 26371.21 cm/s² 32605.51 cm/s² -6234.30 cm/s²
Wrist speed relative to throwing-shoulder position 1711.81 cm/s 1635.07 cm/s 76.75 cm/s
Peak wrist speed — global / world space 2040.76 cm/s 1822.43 cm/s 218.34 cm/s
Peak throwing-shoulder speed — global / world space 505.72 cm/s 424.66 cm/s 81.07 cm/s

MUSCLE / SEQUENCE SNAPSHOT

  • Higher mean contribution: Throwing Shoulder (+32.1%), Trunk Transfer (+11.1%)
  • Lower mean contribution: Lead / Plant Leg (-13.7%), Drive Leg (-6.9%)

FIRED RULES AND OUTCOMES

  • Pelvis-to-shoulder-to-arm sequencing — SEVERE
  • Early wrist-speed ramp timing — MODERATE
  • Shoulder-line rotation timing — MODERATE
  • Kinematic throwing-arm proxy indicators — MODERATE
  • Elevated elbow / upper-arm orientation proxy — MILD
  • Late forearm-direction lag timing — MILD

INTERPRETATION BOUNDARY

These findings are motion-derived kinematic evidence, not a medical diagnosis or direct tissue/joint-load measurement. Muscle contribution values are motion-derived proxies, not EMG. Baseline-relative findings describe differences from the selected reference and do not automatically represent population norms.