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Advisor(s)
Abstract(s)
This study aimed to develop reference curves of aerobic parameters of 20 m shuttle run test for
Tunisian soccer players. The study was conducted in the 2022/2023 pre-season. The reference
curves of the maximal aerobic speed (MAS) and the maximal oxygen uptake (VO2max) were
developed according to the Lambda, Mu and Sigma (LMS) method, using data from 742 Tunisian
premier league soccer players aged 11–18 years. Measured variables included: weight, height,
body mass index and maximal heart rate (HRmax). HRmax was measured when the participants
completed the maximal aerobic speed. VO2max was estimated using the 20 m shuttle run test
protocol (speed increment every minute). Our results presented the smoothed percentiles (3rd,
10th, 25th, 50th, 75th, 90th and 97th) of MAS (km/h) and VO2max (ml/kg•min⁻1) according to
age. In addition, raw data showed that VO2 max was positively correlated with age (r = 0.333; P
< 0.001), height (cm) (r = 0.279; P < 0.001), weight (kg) (r = 0.266; P < 0.001), practice period
(years) (r = 0.324; P < 0.001) and BMI (kg/m2) (r = 0.10; P < 0.05). However, it was negatively
correlated to HRmax (bpm) (r = 0.247; P < 0.001). Only the measurements within the age
group [12–12.99] are significantly higher (p < 0.001; ES = 0.63) compared with the previous age
group [11–11.99]. Finally, regarding prevalence, our findings showed that 15.5 % of the players
in our sample had VO2max values above the 87.7th percentile cut-off, while only 0.3 % exceeded
the 99.18th percentile. The development of normative curves could help coaches and physical trainers to more accurately detect weaknesses in the aerobic performance of their players in order
to sustain high-intensity repetitive actions during a soccer match.
Description
Keywords
Aerobic performance BMI HRmax VO2max Percentile curves Physical training Prevalence Practice period Soccer payers
Citation
Ghouili, Hatem; Dridi, Amel; Ouerghi, Nejmeddine; Ben Aissa, Mohamed; Bouassida, Anissa; Guelmami, Noomen; Sortwell, Andrew; Branquinho, Luís; Forte, Pedro; Dergaa, Ismail (2023). Normative reference and cut-offs values of maximal aerobic speed-20 m shuttle run test and maximal oxygen uptake for Tunisian adolescent (elite) soccer players. Heliyon. eISSN 2405-8440. 9:10, p. 1-10
Publisher
Elsevier