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Multilayer, back-propagation artificial neural networks were used in the analysis of two problems on concrete fatigue durability. The first problem deals with prediction of fatigue number of cycles on the basis of four known characteristics of concrete and parameters of load cycles. The second problem is associated with identification of concrete strength fc. The neural networks were trained and tested...
In 24 football players before (A), during (B) and after (C) maximal exercise on the cycloergometer the haematocrit count, haemoglobin concentration and lactate concentration were estimated in the succeeding stages of preparating (I, II, III ) and starting (period (IV, V). The investigations of anaerobic debt 3 minutes after maximal exercise were also performed. The following results were obtained:...
After single, maximal physical exercise on ergometer in the investigated sport groups (cyclists-seniors and juniors and weightlifters-seniors) were found: no statistically significant differences in haematocrit count and haemoglobin concentration, increase of leukocytes number in cyclists-seniors (p < 0,001) and weight-lifters-seniors (p < 0,001), statistically significant increase of glucose...
The investigations were performed on 18 to 21 football players during the preparating (stages I, II, III) and starting (IV, V) periods of training. The maximal oxygen uptake (V02 max), maximal carbodiooxide expiration 2 (VCO2 max), respiration coefficient (RQ), Heart rate (HR) as 2 well as oxygen heart rate (V02 max : HR) were estimated. The training procedure during preparating period of spring round...
Le but des expérimentations citérs ci-dessous est l'estimation de la condition physique de joueurs de balle de II ligue de "Pogoń", d'après leurs valeurs de l'équilibre acido-basique, mesurées avant et après l'effort physique pendant de période de préparation au saison de jou et au cours de cette saison. L'effort physique maximal provoquent chez tous les examinés une reduction importante...
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