Kolman, N. (Nikki) (2016) The Dutch Technical-Tactical Tennis Test (D4T) for talent identification and development: psychometric characteristics. thesis, Sport Sciences.
Full text available on request.Abstract
This study examined the test-retest reliability, validity and feasibility of the newly developed Dutch Technical-Tactical Tennis Test (D4T). This new test is relevant for talent identification and development in tennis. Thirty-two youth male tennis players (age 13.4 ± 0.5) were classified as elite (n=15) or sub-elite (n=17) according to their position at the national youth ranking list under 15 years (cut-off rank 50) in the Netherlands. Games, rallies, and different tactical situations (i.e. offensive, neutral, and defensive) were simulated with a ball machine. Players had to return 72 balls to predetermined target areas. Stroke quality was recorded based on ball velocity and accuracy (VA-index), as well as percentage errors. Test-retest reliability was assessed by comparing differences between the first and second test-session (n=10). An intraclass-correlation coefficient of .78 for VA-index was found (p < .05), indicating excellent test-retest reliability. Univariate and multivariate AN(C)OVAs revealed a significant main effect of performance level on VA-index, ball velocity, and accuracy (p < .005), even after controlling for the influence of maturation (p < .05), supporting good validity. Furthermore, a high correlation was found between VA-index and individual positions at the youth ranking list (r = -.75; p < .001). The assessment of feasibility indicated that the D4T is applicable for trainers and coaches. In conclusion, the D4T has been shown to be a reliable, valid, and feasible test to measure technical and tactical characteristics of a tennis performance in youth players. Keywords: racquet sports, field test, performance, ball velocity, accuracy, youth sports
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Huijgen, B. and Kramer, T. |
| Faculty: | Medical Sciences |
| Date Deposited: | 29 Apr 2022 12:18 |
| Last Modified: | 29 Apr 2022 12:18 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3159 |
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