Schreurs, M. (Mervin) (2016) The effect of cutting angle and speed on knee mechanics in team sport athletes. thesis, Sport Sciences.
Full text available on request.Abstract
Introduction: Cutting is an important skill in team-sports, but unfortunately it is also related to non-contact ACL injuries. This study aims to examine knee kinetics and kinematics of cutting at different cutting angles. Second, this study aims to examine the relationship between speed (completion time) and knee kinetics and kinematics. Method: 13 males and 16 females participated in this study. Participants performed cuts of different angles (0⁰,45⁰, 90⁰, 135⁰ and 180⁰) at maximal effort. Three dimensional motion and ground reaction forces were recorded to calculate knee kinetics and kinematics. Repeated measures ANOVA was used to examine the effect of cutting angle. Pearson correlation was used to examine the effect of completion time. Results: Except knee flexion angles in males, all kinetic and kinematic variables differed between the cutting angles. Remarkably the knee varus/valgus moment stabilized at angles sharper than 90⁰. Furthermore, for different angles different relationships existed between completion time and kinetic and kinematic variables. In males the knee varus/valgus moment seems low to moderate related to completion time. Further it seemed that female athletes had a low relationship between completion time and knee varus/valgus moment. Conclusion: It can be concluded that different cutting angles demand different knee kinetics and kinematics. Further it can be concluded that different kinetic and kinematic variables are correlated to completion time for different cutting angles. It seems that males with faster completion time have higher knee valgus moments. But faster females have lower knee valgus moments in the cutting angles of 45⁰ and 180⁰ compared to slower females. Keywords: Cutting, Agility, Knee, Biomechanics, Anterior Cruciate Ligament
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Lemmink, prof. dr. K.A.P.M. and Benjaminse, A. |
| Faculty: | Medical Sciences |
| Date Deposited: | 03 May 2022 10:10 |
| Last Modified: | 03 May 2022 10:10 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3186 |
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