Nanne, S. (Sjaantje) (2020) Can Standardized Small-Sided Games be used to Monitor In-Season Changes in Endurance and Strength Capacity in Youth Elite Soccer Players? thesis, Sport Sciences.
Full text available on request.Abstract
Purpose: Repeated testing is required to monitor within-player changes in endurance and strength capacity throughout the season. Traditional tests are, however, time consuming and thereby result in less time available for soccer-specific training. Therefore, the aim of this study was to investigate if a standardized small-sided game (SSG) can be used to monitor in-season within-player changes in endurance and strength capacity. Methods: Thirty-six elite youth soccer players (age (mean ± SD): 17 ± 1 y, height: 177 ± 7 cm, body weight 67 ± 9 kg) were tested on four occasions during in-season (October – January). Each test occasion consisted of a submaximal Interval Shuttle Run Test (ISRT) and a squat jump (SJ). Submaximal heart rate (bpm) and Jump Height (cm) were used as indicators of changes in endurance and strength capacity. Furthermore, load indicators were obtained from standardized six minute seven vs. seven SSGs at each test occasion. During all SSGs, external load was collected with a local position measurement system (e.g. total distance (TD), high intensity distance (HID)). Internal load was determined using heart rate (TRIMPmod) and session Rating of Perceived Exertion. A multilevel analysis was applied to predict within-player changes in traditional test results based on several load indicators (external, internal and external:internal ratios) from the SSGs. Results: A total of 172 measurement occasions were included. On average, submaximal heart rate (T1: 184.92 – T4: 182.17 bpm) and SJ height (T1: 34.20 – T4: 36.99 cm) improved significantly over time. TD and TRIMPmod were significant predictors of endurance capacity (p < .05). None of the load indicators was a significant predictor of strength capacity. Within-player changes in both endurance and strength capacity could not be predicted based on SSG load indicators. Conclusion: Standardized seven vs. seven SSGs cannot be used as a replacement of traditional endurance and strength tests for monitoring within-player changes in endurance and strength capacity during the in-season of youth elite soccer players. Keywords: player monitoring, time-motion analysis, heart rate, training load, testing
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Brink, dr. M.S. and Houtmeyers, K. |
| Faculty: | Medical Sciences |
| Date Deposited: | 20 May 2022 09:24 |
| Last Modified: | 20 May 2022 09:24 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3369 |
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