#Hej stylus kyle professional
10–13 Rob et al. determined professional pitchers display less hip external rotation (ER), internal rotation (IR), and total PROM in the stride leg compared to the drive leg. The repetitive nature of the pitching motion leads to adaptations in the hip joint tissues, often leading to changes in hip PROM. Hip PROM is one functional measure that can influence pitching mechanics. 5 Over time high shoulder and elbow loads may contribute to tissue breakdown and injury. 5 High school pitchers have been reported to have different patterns of segmental sequencing compared to professional pitchers despite having similar elbow valgus load relative to size. 4,6 During pitching segmental power of trunk motion contributes to the development of ball velocity and elbow valgus load and ball velocity. 5 Lower extremity mechanical or functional deficits can result in compensation patterns in the trunk and upper extremity to maintain ball velocity. 4 Improper segmental sequencing of the lower extremities can lead to compensations at the trunk and upper extremity that result in increased upper extremity forces. Improper stride foot positioning can cause the pelvis and trunk to rotate towards the catcher too early in the pitching motion, which leads to improper segmental sequencing. 4 Hip PROM may contribute to lower extremity positioning during pitching therefore it is important to examine the association between these variables. 1–3 At foot contact of the pitch, the stride foot should be planted slightly towards third base (for a right handed pitcher) and pointed slightly inward. 1,2 Proper pitching mechanics, joint passive range of motion (PROM), core stability, and strength are critical in the transfer of energy from the lower extremities to the trunk, shoulder, elbow, wrist, and finally hand before ball release.
Baseball pitching is a dynamic motion requiring optimal proximal to distal sequencing of the kinetic chain to produce maximal ball velocity.
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