1,721,088 research outputs found
INCREASED MECHANORECEPTOR /METABORECEPTOR STIMULATION EXPLAINS THE EAGGERATED EXERCISE PRESSOR REFLEX SEEN IN HEART FAILURE
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Hemodynamics during active and passive recovery from a single bout of supramaximal exercise
No full textAn inflatable pneumatic system for blood pressure recovery
No full textIn this article a calf-plantar sequential pneumatic compression innovative device, consisting of three sensorized and PLC-controlled chambers, is designed and implemented. It performs a massage on the calf surface and on the foot sole at a given controlled pressure level and frequency and, in addition, carries out the ankle passive movement. Preliminary tests were performed on patients, using a commercial apparatus normally devoted to lymphatic drainage massage. In testing the mechatronic apparatus under real working conditions three air pressure transducers are used to feedback control the actuation system and the pressure trends in the actuator chambers during massage are here reported. © 2012 Taylor & Francis Group, LLC
Exercise-Induced Asthma and Immune System. Impact on allergic disorders.
No full textExercise can induce some modifications of immune parameters like cytokines, secretory IgA and lymphocyte count. One of our studies on a team of professional athletes (football players), in which we checked cytokine levels and lymphocyte subclasses in various phases of the championship series, is used to hypotesize the links between sports, asthma and allergic disorders
An Inflatable Pneumatic System For Blood Pressure Recovery
No full textIn this article a calf-plantar sequential pneumatic compression innovative device, consisting of three sensorized and PLC-controlled chambers, is designed and implemented. It performs a massage on the calf surface and on the foot sole at a given controlled pressure level and frequency and, in addition, carries out the ankle passive movement. Preliminary tests were performed on patients, using a commercial apparatus normally devoted to lymphatic drainage massage. In testing the mechatronic apparatus under real working conditions three air pressure transducers are used to feedback control the actuation system and the pressure trends in the actuator chambers during massage are here reported
Correlation between mechanical and metabolic energy during the gait cycle with and without jumping stilts
No full textDoes reduction of blood prolactin levels reveal the activation of central dopaminergic pathways conveying reward in top athletes?
No full textNatural Killer cells responsiveness to physical esercise: a brief review
Full text linkNatural killer cells (NK) are a group of peripheral blood lymphocytes which display cytotoxic ac- tivity against a wide range of tumour cells. They are a consistent part of the inflammatory re- sponse that is activated when either internal or external injuries occur as they are able to syn- thesize perforins. An important role is played by NK cells in the host defence against tumours without expressing any antigen-binding recap- tor in their membrane which, however, distin- guish T and B lymphocytes. NK activity appears early in the immune response, thus providing immediate protection during the time required for the activation and proliferation of cytotoxic T lymphocytes and for their differentiation into functional cells. Even though much research regarding the effects of aerobic training exercise on NK cell numbers and function, there appears to be much controversy regarding its effect. NK cells are rapidly mobilized into circulation in response to acute exercise, most likely by in- creased shear stress and catecholamine-in- duced down-regulation of adhesion molecule expression. However, tissue injury and inflam- mation which often accompanies strenuous ex- ercise have been associated to post-exercise NK cell suppression. Scientific evidence indicates exercise-induced changes in NK cell redistribu- tion and function should be strongly influenced by stress hormones including catecholamines, cortisol and prolactin as well as by soluble me- diators such as cytokines and prostaglandins. The role of exercise therapy in cancer patients and survivors rehabilitation is becoming increasingly important as it is thought to modulate immunity and inflammation. However, more knowledge about the effects of exercise on im-mune function in these patients is needed
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