Search results for "Passive"

Effects of different doses of doxepin on passive avoidance learning in rats

2013

Background: Studies have shown that Doxepin has anti-inflammatory effects and reduces oxidative stress. Due to the fact that other tricyclic antidepressants have been shown to have neuroprotective effects, this study aimed to investigate the effects of different doses of doxepin on passive avoidance learning in rats. Materials and Methods: Old male Wistar rats were used in this study. Doxepin was administered intraperitoneally (1, 5 and 10 mg/kg) for 21 days. Passive avoidance learning test was used for evaluation of learning and memory. Rats received foot electrical shock on fifteen day, and step through latencies were evaluated one week after the electrical shock in retention phase. Resul…

Reducing mortality from 2019-nCoV: host-directed therapies should be an option

2020

Effect of sodium bicarbonate and beta-alanine supplementation on maximal sprint swimming

2013

Background. This study examined the effect of simultaneous supplementation of extracellular buffer sodium bicarbonate (SB) and intracellular buffer beta-alanine (BA) on maximal sprint swimming. Methods. Thirteen competitive male swimmers completed 4 different treatments (placebo [PL], SB, BA + PL, and BA + SB) in a crossover procedure. PL or SB supplementation (0.3 g/kg body weight) was ingested 60 min before two maximal 100-m freestyle swims that were performed with a passive recovery of 12-min between each swim. Because of the known long washout period for carnosine, four weeks of BA supplementation (4.8 g per day) was started after the first week of PL or SB supplementation and performan…

The effects of active vs. passive recovery on riding performance during a simulated motocross race

2021

Aims: Motocross consists of two races of 30 min with a break in between. Recovery between races is paramount to performance, this study aimed to compare the effects of active and passive recovery between motocross races on riding performance. Methods: Thirteen elite and non-elite racers performed two races of 30 min with 1 h break, twice with two-week interval. Between the races active (20 min ergometer cycling at 60% of HRmax) or passive recovery (no activity) were executed in a randomized order. Lap times, heart rate during riding, blood lactate, reaction time, handgrip strength, upper back pull strength, counter movement jump height, and medicine ball throw distance were measured before …

2018

To investigate the effects of different recovery strategies on fatigue markers following a prolonged running exercise. 46 recreational male runners completed a half-marathon, followed by active recovery (ACT), cold water immersion (CWI), massage (MAS) or passive recovery (PAS). Countermovement jump height, muscle soreness and perceived recovery and stress were measured 24h before the half-marathon (pre), immediately after the recovery intervention (postrec) and 24h after the race (post24). In addition, muscle contractile properties and blood markers of fatigue were determined at pre and post24. Magnitude-based inferences revealed substantial differences in the changes between the groups. At…

The Burden of Pediatric Asthma

2018

Asthma is the most common chronic disease in children, imposing a consistent burden on health system. In recent years, prevalence of asthma symptoms became globally increased in children and adolescents, particularly in Low-Middle Income Countries (LMICs). Host (genetics, atopy) and environmental factors (microbial exposure, exposure to passive smoking and air pollution), seemed to contribute to this trend. The increased prevalence observed in metropolitan areas with respect to rural ones and, overall, in industrialized countries, highlighted the role of air pollution in asthma inception. Asthma accounts for 1.1% of the overall global estimate of "Disability-adjusted life years" (DALYs)/100…

Music Training Enhances Rapid Neural Plasticity of N1 and P2 Source Activation for Unattended Sounds

2012

Neurocognitive studies have demonstrated that long-term music training enhances the processing of unattended sounds. It is not clear, however, whether music training also modulates rapid (within tens of minutes) neural plasticity for sound encoding. To study this phenomenon, we examined whether adult musicians display enhanced rapid neural plasticity compared to non-musicians. More specifically, we compared the modulation of P1, N1, and P2 responses to standard sounds between four unattended passive blocks. Among the standard sounds, infrequently presented deviant sounds were presented (the so-called oddball paradigm). In the middle of the experiment (after two blocks), an active task was p…

Newborn infants and the moral significance of intellectual disabilities.

2001

This article presents moral philosophical arguments regarding life-saving medical treatment that may be more available to infants without disabilities than to infants with intellectual disabilities. The ideas are that children with disabilities are a burden to their families and to society and that a happy life may not be attainable for these children and their families. I argue that human well-being is not based merely on individual characteristics, but is a result of the individual's relation to other people. Further, children with disabilities are not inevitably a burden to their families or society. Accordingly, intellectual disability is not a sufficient reason for withholding life-sa…

Comparing Active, Passive, and Combined Warm-Ups Among Junior Alpine Skiers in −7°C

2020

Context: Warming up in very cold climates and maintaining an elevated body temperature prior to a race is challenging for snow-sport athletes. Purpose: To investigate the effects of active (ACT), passive (PAS), and a combination of ACT and PAS (COM) warm-ups on maximal physical performance in a subzero environment among snow-sport athletes. Methods: Ten junior alpine skiers completed 3 experimental trials in −7.2 (0.2)°C. The ACT involved 5 minutes of moderate cycling, 3 × 15-second accelerations, a 6-second sprint, 5 countermovement jumps (CMJs), and a 10-minute passive transition phase, while in PAS, participants wore a lower-body heated garment for 24 minutes. In COM, participants comple…

Effects of nicotine on motor activity, passive avoidance and plus-maze behavior in aged NMRI and C57BL mice

2002

The aim of the present study is to evaluate the effects of nicotine (0.35 and 0.175 mg/kg) on locomotor activity, passive avoidance and plus maze behavior in aged mice of two strains (C57BL and NMRI). In a first experiment, aged mice of these strains were injected with nicotine or saline and immediately afterwards were put on the actimeter. Results showed that nicotine significantly decreased locomotor activity in C57 mice. In a second experiment, nicotine was administered before training and retention sessions of a passive avoidance task. Results indicated that 0.175 mg/kg nicotine significantly increased entry latency in aged NMRI mice but had no effects on C57 mice. In the last experimen…