Dimitrakis, P. (Panagiotis) (2021) Kinematic differences on landing and cutting between healthy and ACL injured youth athletes over time. thesis, Human Movement Sciences.
Full text available on request.Abstract
Introduction Activities involving jumping, landing, and cutting are commonly associated with non contact anterior cruciate ligament ( injuries. Based on the injury mechanisms, several tests have been developed to screen for the risk of an ACL injury. The relation ships between those tests and ACL injury have been equivocal and stem from different cohorts Hence, the aim of this study is to determine the kinematic differences on landing and cutting between healthy and ACL injured youth athletes over time. Methods: Twelve subjects (six with an ACL injury and six healthy), conducted three trials of double leg drop vertical jump ( single leg hop for distance ( sidestep cutting ( single leg drop vertical jump ( during a five time frame period. Th e degrees of knee angle at the initial contact ( max ( and range of motion ( were analyzed in both the sagittal and frontal plane. Results: From sagittal the plane significant differences among the groups throughout 5 editions were found at DL DVJ MAX first edition ( P=0.048, SSC ROM ( P=0.022, SSC IC fifth edition ( P=0.040, SLDVJ ROM ( P=0.045. From the frontal plane significant differences, throughout a 5 time period frame, were found at SLHD MAX ( P=0.015, SSC MAX ( P=0.046 and SLDVJ ( P=0.022. Discussion: The results of the current study did not come as expected probably due to some limitations. However, slight changes have been observed in jumping and cutting kinematics between ACL injured and healthy subjects. Additi onally, a deeper analysis of an ACL injured female handball player did show differences in expected directions Specifically, the ACL injured subject performed worse in two out of four tests from the sagittal position and worse in the three out of four tes ts from the frontal position. Conclusion: This project tried to provide further insight that ACL injured subjects changed their jumping patter when conducting DLDJ, SLHD, SSC and SLDJ. Additionally, the analysis of individualized subjects showed worse jum ping after the ACL injury during the four tests. As a result, further prospective studies should conduct data analyses less masking individual differences, which may provide crucial information for ACL injury prevention.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Benjaminse, A. |
| Faculty: | Medical Sciences |
| Date Deposited: | 13 May 2022 09:37 |
| Last Modified: | 13 May 2022 09:37 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3292 |
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