Comparison of Trunk and Pelvic Kinematics in Youth Baseball Pitchers With and Without Upper Extremity Pain: A Cross-Sectional Study
Background: Motion of the pelvis and trunk during baseball pitching is associated with increased upper extremity (UE) kinetics. Increased kinetics on the UE may lead to throwing-arm pain in youth pitchers. Limited biomechanical comparisons have been conducted on youth pitchers with and without throw...
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Veröffentlicht in: | Orthopaedic journal of sports medicine 2023-01, Vol.11 (1), p.23259671221145679-23259671221145679 |
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Sprache: | eng |
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Zusammenfassung: | Background:
Motion of the pelvis and trunk during baseball pitching is associated with increased upper extremity (UE) kinetics. Increased kinetics on the UE may lead to throwing-arm pain in youth pitchers. Limited biomechanical comparisons have been conducted on youth pitchers with and without throwing-arm pain to identify mechanical risk factors associated with pain.
Purpose:
To examine trunk and pelvic kinematics in youth baseball pitchers with and without UE pain.
Study Design:
Cross-sectional study; Level of evidence, 3.
Methods:
A total of 26 male youth baseball pitchers (mean age, 12.7 ± 1.5 years; mean height, 162.2 ± 12.9 cm; mean weight, 52.6 ± 13.1 kg) were recruited to participate. An electromagnetic tracking system was used to obtain kinematic data during the fastball pitch. Data from a health history questionnaire was examined. Participants who answered “yes” to experiencing pain and who selected a region on their UE as the pain location were placed into the UE pain group. Participants who responded “no” to experiencing pain were placed into the pain-free group. We compared between-group differences in trunk rotation, flexion, and lateral flexion; pelvic rotation, anteroposterior tilt, and lateral tilt; and hip-shoulder separation from peak knee height to ball release of the baseball pitch using 1-dimensional statistical parametric mapping with an alpha level set at .05.
Results:
No statistically significant differences were observed between the UE pain and pain-free groups in the 7 trunk and pelvic kinematics analyzed from peak knee height to ball release (P > .05).
Conclusion:
Trunk and pelvic kinematics during the pitching motion did not differ between pain and pain-free groups of youth baseball pitchers. |
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ISSN: | 2325-9671 2325-9671 |
DOI: | 10.1177/23259671221145679 |