University of Twente Student Theses
Kinematics and performance of soccer players during the ‘change-of-direction t-test’
Gastel, T.J. van (2024) Kinematics and performance of soccer players during the ‘change-of-direction t-test’.
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| Abstract: | Restoring movement quality after anterior cruciate ligament (ACL) reconstruction is essential for a safe return-to-sport. This thesis is divided into two parts. The first part aims to observe the effect of measurement surface (tartan, artificial turf, and natural grass) on joint kinematics and performance of healthy soccer players during the ‘change-of-direction t-test’. During 90° directional change, lower frontal plane ankle joint range of motion was found on grass (p<0.030) as well as longer ground contact times on tartan (p<0.047). During 180° directional change, velocity was lower on artificial turf (p<0.001), and peak ankle flexion was higher on tartan (p=0.035). Furthermore, ankle rotation angles at initial contact were significantly lower on tartan (p<0.036) for both 90° and 180° directional changes. These findings suggest that surface type significantly impacts joint kinematics and change-of-direction performance. The second part aims to observe kinematic and performance differences between healthy and affected limb of soccer players during the on-field ‘change-of-direction t-test’ following ACL reconstruction. While no significant differences were found in joint kinematics or performance, participants tended to turn tighter on their healthy limb. This observation implies that change-of-direction tightness could be an important metric for future assessments of movement quality after ACL reconstruction. |
| Item Type: | Essay (Master) |
| Clients: | Pro-F Professionele Fysiotherapie, Enschede, Netherlands Zuyd Hogeschool, Heerlen, Netherlands |
| Faculty: | TNW: Science and Technology |
| Subject: | 01 general works |
| Programme: | Biomedical Engineering MSc (66226) |
| Link to this item: | https://purl.utwente.nl/essays/102577 |
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