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

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.info:eu-repo/semantics/publishedVersio

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

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 \u3c 0.001), height (cm) (r = 0.279; P \u3c 0.001), weight (kg) (r = 0.266; P \u3c 0.001), practice period (years) (r = 0.324; P \u3c 0.001) and BMI (kg/m2 ) (r = 0.10; P \u3c 0.05). However, it was negatively correlated to HRmax (bpm) (r = − 0.247; P \u3c 0.001). Only the measurements within the age group [12–12.99] are significantly higher (p \u3c 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

Editorial Adaptive and reconfigurable software systems and architectures

International audienceAdaptation is a key requirement for many software systems, such as cloud-based, cyber-physical and mobile systems. These systems are designed to satisfy different needs and expectations of users, in particular the need to take advantage of a service permanently. Such system should be able to adapt its structure and/or behaviour at runtime to cope with changes in their operating environment and user needs

Progetto CELAVIE: descrizione metodologica per la produzione acquaponica di animali e piante

Scopo del presente report tecnico è la presentazione della tecnica di Acquaponica impiegata nell’ambito del progetto CELAVIE, programma di Cooperazione transfrontaliera Italia-Tunisia e ubicata presso il centro di sperimentazione della “cellula per la vita”. L’acquaponica è una tecnica agricola innovativa che porta benefici, sia agli agricoltori che all’ambiente. La gestione efficiente dell’acqua, la riciclabilità dei nutrienti e la maggiore produttività sono solo alcuni dei benefici che questa tecnica di coltivazione porta con sé (Manuale FAO, 2019). L'impianto realizzato a Palermo e a Sfax acquisisce dati utili allo studio dell’ambiente esterno, del terreno circostante e dell’ambiente interno alla cellula

Bilateral renal infarction following atrial fibrillation and thromboembolism and presenting as acute abdominal pain: a case report

<p>Abstract</p> <p>Introduction</p> <p>Renal infarct is rare and often misdiagnosed because the symptoms are misleading. The mechanisms are various, mainly thrombotic and embolic.</p> <p>Case presentation</p> <p>In this review, we report the case of a 61-year-old Tunisian woman presented to the emergency unit with a 4-hour history of abdominal pain diffused at both flanks, ultrasounds was performed to remove a surgical emergency, showed a peri-renal fluid collection with heterogeneous parenchyma.</p> <p>We followed by a CT scan, which confirmed the diagnosis of renal infarct. The patient was treated by heparin at a curative dose, and the outcome was favorable.</p> <p>Conclusion</p> <p>Diagnosis is difficult and should be considered in patients with inexplicable flank or abdominal pain and with risk factors to this disease. Our purpose is to raise clinician’s awareness for this condition so that they will be more likely to diagnose it. This will facilitate prompt diagnosis and treatment.</p> <p>A review of the literature was performed and the case is discussed in the context of the current knowledge of this condition.</p