نتایج جستجو برای: breath holding
تعداد نتایج: 43883 فیلتر نتایج به سال:
Background: To develop the physiological performance of soccer players to practice Fartlek training.Purpose: The perseverance this investigation was find out effect fartlek training on breath holding time among players. For study 40 football were randomly chosen from Alagappa University Associated Colleges and their age range between 18 25 years.Methods: divided into two groups 20 each for grou...
WHY KIDS DON’T BREATHE What beginners discover is that they really don’t need to take any extra breath to make a sound on their instrument. They can make a sound and get by with whatever breath they have on hand at the moment. Besides, they are inundated with so many other things to think about – holding the instrument, embouchure, different pitches, counting, fingerings, articulation – why bot...
This study attempted to determine noninvasively whether a dysregulation of autonomic reflexes exists in children with breath holding spells (BHS). Fifty children between 13 to 47 months of age who had experienced BHS were evaluated at a time when they stopped having spells, for autonomic nervous system (ANS) dysfunction. The results were compared with the test results of control group of 100 no...
Carbon dioxide inhalation can be used to map changes in cerebral metabolic rate of oxygen (CMRO(2)) during neuronal activation with functional MRI (fMRI). A hypercapnic stress also can be achieved with a simple breath-holding test. Using this test as means of manipulating cerebral blood flow (CBF) independent of CMRO(2), we assessed changes in CMRO(2) during visual stimulation. With this task, ...
Effects of breath holdings (BH) on bronchomotor tone, maintained until their breaking points, have been studied using maximal expiratory flow volume curves (MEFVC). BHs have been performed either at high lung volume (total lung capacity, EIBH) or at low lung volume (residual volume +250 ml, EEBH), an inspiratory manoeuvre immediately preceding the MEFVC. The results show that: (1) EIBH induces ...
The role of cerebral blood flow (CBF) on a maximal breath-hold (BH) in ultra-elite divers was examined. Divers (n = 7) performed one control BH, and one BH following oral administration of the non-selective cyclooxygenase inhibitor indomethacin (1.2 mg/kg). Arterial blood gases and CBF were measured prior to (baseline), and at BH termination. Compared to control, indomethacin reduced baseline C...
The aim of the present study was to determine whether or not voluntary breath-holding time (BHT) changes with the time of the day. BHT with airways closed at end-expiration was measured in six male subjects in the sitting position during the morning (08.00-12.00 hours, on days 1, 6, 7 and 8) and evening (20.00-24.00 hours, on days 2 and 4). BHT increased with the number of days of testing and, ...
Pallid breath-holding (PBH) is a childhood condition that presents with recurrent syncope. Although typically benign, severe cases can lead to asystole and anoxic seizures. Previous studies have advocated pacemaker placement to abbreviate symptoms. This was a retrospective study of patients treated with fluoxetine for PBH spells. Clinical response, side effects and avoidance of pacemaker implan...
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