RehabMove 2018: Activity profiles during wheelchair tennis: Effects of division, result and score margin
| Main Authors: | Mason, B.S., van der Slikke, R.M.A., Hutchinson, M.J., Berger, M.A.M., Goosey-Tolfrey, V.L. |
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| Format: | Proceeding |
| Bahasa: | eng |
| Terbitan: |
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/2606954 |
Daftar Isi:
- The purpose of this study was to compare the activity profiles of elite wheelchair tennis (WT) players during match-play for men, women and quad divisions and to explore how result and score margin affect these profiles. Activity profiles of seventeen of the top 8 ranked WT players from the men’s (n = 7), women’s (n = 6) and quad (n = 4) divisions were monitored during the NEC Wheelchair Tennis Masters 2017 using a radio frequency-based indoor tracking system (ITS) and inertial measurement units (IMU). Data were collected from 22 matches, resulting in 73 individual sets of data. Data were analysed with regards to the result of each set (win/loss) and margin of the result (small ≤ 3; large > 3 games differential). Distance, mean and peak speed and the time spent in fixed speed zones were analysed by the ITS. Acceleration, rotational velocity and rotational acceleration and direction of turns were quantified by the IMU. Activity profiles were elevated during men’s matches compared to both women’s and quads and for women’s matches compared to quads for most parameters. Few differences in activity profiles were observed between winning and losing sets. Alternatively, independent of result, distances covered, peak speed, time spent and number of high-speed activity (HSA) performed were significantly greater during sets with small score margins (p ≤ 0.035). Significant interactions between result and score margin were also observed for a number of parameters. Trivial to small differences (effect sizes [ES] ≤ 0.3) in mean speed, time spent and number of HSA performed were revealed when losing, regardless of margin, whereas large increases (ES ≥ 1.3) were revealed when winning by a small compared to large margin. In conclusion, activity profiles differ according to division and are typically elevated during sets with a small score margin in WT players, which should be taken into consideration by coaches and practitioners when monitoring and planning players physical training loads.