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8
51%
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nr 10
1259-1261
EN
The aim of this study was to compare the effects of types of training: interval versus endurance on heart rates (HR) and the levels of chosen blood parameters in 28 Standard bred trotters, 2-3-years-old, trained for racing. The horses were divided into groups according to type of work. Three jugular venous blood samples were taken from each horse: at rest, just after the end of the training session and after 30 min rest. Hemoglobin (Hb) and lactic acid (LA) blood concentrations were determined as well as the plasma levels of glucose (Glc), glycerol, uric acid (UA), total plasma proteins and the activity of lactate dehydrogenase (LDH). Speed and HR during the training sessions were recorded by Polar speed and heart-rate telemeters. The interval training induced the increase in blood LA and Hb levels and plasma UA concentration directly proportional to the speed of trotting. A significant rise in the plasma level of glycerol determined immediately after exercise and 30 min later were observed during the intensity interval training session. These changes correlated positively with blood LA level and plasma Glc and correlated negatively with total plasma proteins concentration. The determination of plasma glycerol after exercise in trotters can be a good biochemical marker for assessing the process of interval training.
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tom 52
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nr 01
56-58
EN
The investigation has been carried out on 35 horses of the Felin type during their transportation in a trailer for the distances of 15-274 km. A heart rate was examined taking into account the age, the body weight and the distance covered. The electronic outfit Sport-Tester 4000 was used for the assessment. It was found that among horses the reaction upon a long transportation was very diverse and depended on individual factors. Age, body weight and the time of transportation (distance) significantly influenced the decrease of heart rate. An average heart rate registered during the transportation was comparable with the rate noticed in horse performance tests and in some cases approximate to the heart rate of horses subjected to a maximal effort.
EN
The objective of the study was to determine the activity of the sympathetic and parasympathetic systems associated with various kinds of behaviour in Thoroughbred yearlings during initial training by natural methods. The initial training lasted approximately one hour a day for three successive days. Each day, the behaviour of each colt during the first 15 minutes of training was filmed. During training, a telemetric device was used to measure heart rhythm parameters: heart rate (HR per minute), which shows the activity level of the sympathetic system, and RMSSD (root mean square of two successive RR intervals in QRS curve; ms), illustrating the activity level of the parasympathetic system. On the basis of the film, the frequency of 10 most typical kinds of behaviour was estimated. The synchronization of the film with the heart rhythm parameters record made it possible to determine the mean values of these parameters for particular kinds of behaviour. The results show that on the successive days of training, the activity of the parasympathetic part of the autonomic system increased, and the frequency of reactions decreased. The heart rhythm parameters show that, among the typical reactions to training, four kinds of behaviour are desirable: turning the head towards the trainer, low position of the head, turning ears towards the trainer and licking the lips. Other kinds of behaviour, that is, running away, a high position of the head, vocalization, teeth grinding, tail movements to the sides and defecation, are undesirable. The highest excitability is associated with running away and a high position of the head, whereas the head turned towards the trainer and a low position of the head show that the horse is calm.
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