Idiopathic urolithiasis in Tunisian children: A report of 134 cases

We evaluated the metabolic and the nutritional aspects of 134 urolithiasis children in order to outline the characteristics of idiopathic urolithiasis in children. This prospective study group of 134 children (56 females, 78 males) with renal calculi was evaluated. The age range of the patients was six months to 16 years. A dietary survey was performed on every child. All patients were investigated with respect to stone localization and serum and urine risk factors. Statistical analysis of data was carried out using software SPSS 11.0 for Windows. Hypercalciuria was the most common risk factor detected in this group (28.3%). A decrease of water intake was noted in all age groups, especially in the rural area (549.6 mL/day vs. 1150.6 mL/day), and there was an increase in animal protein intake in 17 cases (mean: 1.9 g/kg). In addition, increased intake of starchy foods and food with high oxalate content (sorgum) were detected in the ten to 16 years age group (51%) of our study. Calcium oxalate monohydrate represents the principal component of idiopathic stone (58.2%), which is more frequent in children (68%) than in infants (51.7%) (P <0.02). The major etiology of idiopathic urolithiasis highlights the influence of dietary habit in stone formers in our country. The increased occurrence of calcium oxalate stones in school age children confirms the change in the etiology of urolithiasis according to age

Quantification de la charge d'entraînement imposée au footballeur professionnel en phase de réhabilitation athlétique post-blessure

International audienceThe purpose of this study is to compare training load quantification methods " Work-Endurance-Recovery " , " session-CR10 " and " Training impulse " during a period of post-injury physical rehabilitation in professional soccer players. Methods: Eleven young soccer players injured participated in the study. This period of physical rehabilitation is composed of sessions of muscle conditioning, proprioception and individual work with ball. For all training sessions, Work-Endurance-Recovery training loads are not related to session-CR10 (P = 0.11). These two types of training loads result in significant correlations for proprioception and ball sessions (R 2 = 0.60). In addition, significant correlation coefficients appear between TRIMPs and WER training loads (R 2 = 0.62), and between TRIMPs (only calculated for proprioception and ball sessions) and session-CR10 (R 2 = 0.66). Quantification of muscle conditioning sessions differs between Work-Endurance-Recovery and session-CR10 methods. These differences are due to the fact that the increase in exercise intensity associated with unchanged volume results in decreased effort perception. The particular context of muscular conditioning after injury underlines the limits of session-CR10 quantification method used during the first phase of a physical rehabilitation period. The WER method seems useable for all phases of physical rehabilitation. Our study underlines the feasibility of training load quantification for physical rehabilitation exercises after injuries that could allow to improve such exercises programs.L'objectif de notre travail a été de comparer les méthodes de quantification de la charge d'entraînement « Travail-Endurance-Récupération », « séance-CR10 » et Training impulse lors d'une période de réhabilitation athlétique chez le footballeur professionnel. Sujets et méthodes : onze jeunes footballeurs (16,0 ± 1,2 ans) blessés parmi les 90 jeunes footballeurs fréquentant le Centre technique national Clairefontaine de la Fédération française de football ont fait l'objet d'un recueil de données au cours de leur réhabilitation athlétique post-blessure. Cette période de réhabilitation comprend des séances de renforcement musculaire, de travail des appuis puis de travail individuel avec ballon. Résultats : Pour l'ensemble des séances, les charges Travail-Endurance-Récupération ne sont pas reliées aux charges séance-CR10 (p = 0,11). Pour les séances d'appui et avec ballon, des relations significatives apparaissent entre les charges Travail-Endurance-Récupération et séance-CR10 (R 2 = 0,60), entre Travail-Endurance-Récupération et Training impulse (R 2 = 0,62) et entre séance-CR10 et Training impulse (R 2 = 0,66). L'évolution des charges des séances de renforcement diffère entre les méthodes Travail-Endurance-Récupération et séance-CR10. Ces différences résident dans le fait que l'augmentation de l'intensité de travail à volume constant se traduit par une baisse de la perception de l'effort. Les conditions très particulières du renforcement musculaire post-blessure font apparaître des limites quant à l'utilisation de la méthode séance-CR10 lors de la première phase de réhabilitation. La méthode Travail-Endurance-Récupération semble utilisable pour l'ensemble des phases de travail. Conclusion : Notre étude souligne la faisabilité de la quantification de la charge d'entraînement des périodes de réhabilitation athlétique post-blessure ce qui devrait permettre d'optimiser les programmes proposés