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Results 451 - 500 of 676
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Lee G C - - 1997
BACKGROUND: The results from studies of muscle relaxants show wide variations among institutions. The authors hypothesized that some of this variability could be explained by differences in duration of nerve stimulation before drug administration (stabilization period). METHODS: Train-of-four stimulation was applied every 12 s to both ulnar nerves and adductor ...
Hellsten Y - - 1997
The purpose of the present study was to investigate whether high metabolic stress to skeletal muscle, induced by intensive exercise, would lead to an oxidation of urate to allantoin in the exercised muscle. Seven healthy male subjects performed short term (4.39 +/- 0.04 [+/-SE] min) exhaustive cycling exercise. Muscle samples ...
van Meeteren N L - - 1997
OBJECTIVE: To observe the effects of exercise training on recuperation of sensorimotor function in the early phase of regeneration, and to monitor the long-term effects of exercise on electrophysiological aspects of the regenerating nerve. DESIGN: After sciatic nerve crush in 20 male Wistar rats, one random selected group was subjected ...
Leijssen D P - - 1996
1. In order to establish biological and/or methodological explanations for the wide variability in recovery (50-100%) of labelled CO2 after administration of [13C]bicarbonate or [14C]bicarbonate, 34 human bicarbonate studies involving 480 subjects were analysed, and potential methodological issues were investigated in the laboratory. 2. Overall, continuous infusion studies reported a ...
Paul G L - - 1996
This study was designed to determine the effect of ingesting three preexercise meals on energy metabolism during exercise and recovery and to relate metabolic perturbations to subjective and objective measurements associated with central fatigue. Twelve subjects consumed isoenergetic meals consisting of oat, wheat, or corn cereals 90 min before cycling. ...
Yoshioka H - - 1996
Seizure susceptibility during recovery from hypercapnia was investigated in seven anesthetized neonatal dogs; 13, 20, or 30% CO2 gas was administered for 30 min through a ventilator to result in three levels of hypercapnia in which measured PaCO2 values were approximately 70, 100, and 140 mm Hg. Thereafter, the animals ...
de Groote P - - 1996
OBJECTIVES: This study analyzed the kinetics of oxygen consumption during and after a maximal cardiopulmonary exercise test in patients with dilated cardiomyopathy. The prognostic information derived from indexes of recovery was also studied. BACKGROUND: Previous studies have examined the kinetics of oxygen consumption during a short recovery period in a ...
Brandom B W - - 1996
This study compared spontaneous with edrophonium-induced recovery of neuromuscular transmission (NMT) after mivacurium infusion. During nitrous oxide-narcotic-propofol anesthesia, the electromyogram (EMG) of the adductor pollicis (AP) was recorded and the movement of the first toe in response to stimulation of the posterior tibial nerve was noted. Mivacurium infusion was titrated ...
Kubitz K A - - 1996
This study examined the effects of aerobic exercise on spontaneous electroencephalographic (EEG) activity. Participants (N = 34) were asked to (a) sit quietly for a 10-min adaptation period, (b) either exercise on a cycle ergometer (n = 18) or watch a videotape (n = 16) for 15 min, and (c) ...
Gupta S - - 1996
This investigation highlights the comparison of blood lactate removal during the period of recovery in which the subjects were required to sit down as a passive rest period, followed by active recovery at 30% VO(2)max and short term body massage, as the three modes of recovery used. Ten male athletes ...
Pelayo P - - 1996
The purpose of this study was to relate measurements of blood lactate concentration, performance during a maximal anaerobic lactic test (MANLT) and training loads during a 23-week swimming season. Six elite 200-m freestyle male swimmers [mean age 19.5 (SD 1.6) years, height 184 (SD 5) cm and body mass 77.7 ...
Bogdanis G C - - 1996
The effects of active recovery on metabolic and cardiorespiratory responses and power output were examined during repeated sprints. Male subjects (n = 13) performed two maximal 30-s cycle ergometer sprints, 4 min apart, on two separate occasions with either an active [cycling at 40 (1)% of maximal oxygen uptake; mean ...
Meretoja O A - - 1996
Cisatracurium, 51W89, is one of the ten stereoisomers of Tracrium which, unlike atracurium, has been reported to have a lack of histamine mediated cardiovascular effects at doses as high as 8 x ED95 in adults. We compared the time-course of neuromuscular effects of 80 micrograms.kg-1 or 100 micrograms.kg-1 cisatracurium during ...
Taoutaou Z - - 1996
We investigated the effects of passive and partially active recovery on lactate removal after exhausting cycle ergometer exercise in endurance and sprint athletes. A group of 14 men, 7 endurance-trained (ET) and 7 sprint-trained (ST), performed two maximal incremental exercise tests followed by either passive recovery (20 min seated on ...
Parmar M - - 1996
We describe the successful use of the short-acting, non-depolarizing neuromuscular blocking agent, mivacurium, in a 53-yr-old female patient with late onset congenital myopathy, undergoing elective submucous resection of the inferior turbinates. She was unable to climb stairs and walking was limited to periods of 15 min because of generalized weakness, ...
Katz A - - 1995
The effects of isometric contraction (66% of maximal force) and recovery on glycogen synthase fractional activity (GSF) in human skeletal muscle have been studied. Biopsies were taken from the quadriceps femoris muscle at rest, at fatigue and 5 min postexercise on two occasions: after one of the contractions, the circulation ...
Kraemer W J - - 1995
The purpose of this investigation was to determine the effects of a 3.5-day dietary multibuffer supplement (containing predominantly inorganic phosphate, or Pi, along with bicarbonate and carnosine, i.e., PhosFuel) on repetitive (four trials separated by 2 min rest) Wingate test (WT) performances and whole blood 2,3-diphosphoglycerate (2,3-DPG) concentrations in 10 ...
Hashizume T - - 1995
A microdialysis sampling technique for the intracerebral measurement of somatostatin (SS) in extracellular fluid was examined in the goat. The microdialysis probe (70-mm shaft, 0.5 mm outer diameter) contained at its tip a 4-mm length of copolymer dialysis membrane (20 kDa cut-off). Artificial cerebrospinal fluid (artificial CSF) was pumped through ...
Hofstra W B - - 1995
It has been suggested that children with asthma recover more quickly from exercise-induced bronchoconstriction than adults. On the basis of clinical observation we hypothesized that recovery rate from exercise-induced asthma (EIA) in childhood also decreases with age. In 14 children (aged 7-12 years) with a history of EIA, we measured ...
Herdman S J - - 1995
The use of exercises in the treatment of patients with vestibular deficits has become increasingly popular, and evidence exists that these exercises are beneficial in patients with chronic vestibular deficits. The question as to whether patients with acute unilateral vestibular loss would benefit from vestibular adaptation exercises is particularly compelling, ...
Pérez N G - - 1995
Myocardial contractility falls quickly during respiratory acidosis but if acidosis is maintained a slow gradual return towards control state is detected. In cat papillary muscle, changes in developed tension (DT) during isometric contractions (pacing rate 0.2 Hz) and intracellular pH (pHi) were continuously monitored before and during hypercapnia to study ...
Knauer K W - - 1995
Mescalbean (Sophora secundiflora) toxicity is reported in a dog. Mescalbean toxicity causes intolerance to exercise, muscle rigidity and collapse upon exercise, with a rapid recovery upon resting in dogs. Mescalbean toxicity is a rare cause of the periodic weakness/syncope class of diseases in dogs in areas of the habitat of ...
Williams R E - - 1995
Minimal information is available on the basic interactions within the metabolic and cardiovascular systems during recovery from exercise. Nine men participated in three experiments: one control and two cost-equivalent (52 liters O2) exercise tests of 30 (EX30) and 45 (EX45) min. Exercise intensities were adjusted accordingly. During recovery, all parameters ...
Agüera E I - - 1995
A study was performed on Andalusian horses in order to assess the response of heart rate and various blood parameters to training. Two tests were performed, at two and four months of training respectively. Exercise schedules were of increasing intensity, over a distance of 1000 meters. Speed was progressively increased, ...
Naifeh S - - 1995
Addiction recovery takes place at an archetypal level. This is quite visible in the formulation of the twelve steps of AA which refer to forces in illness and recovery, e.g., a take-over by the addictive substances or process that renders one's life unmanageable and often devastated and the strong need ...
Rubio M D - - 1995
Exercise-induced hematological alterations were studied in 20 four-year old foals, 11 Andalusian and 9 Arabian. They were subjected to a test exercise program consisting of 4 levels of gradually increasing intensity (15, 20, 25 and 30 km/hr) with a duration of 5 min each. Blood samples were taken during resting, ...
Kilgour R D - - 1995
The cardiodynamic responses of 9 healthy men (mean age +/- SD, 22.3 +/- 2.0 yrs) were measured during seated and supine passive recovery following the Wingate Anaerobic Power Test (WAPT). Stroke index (SI) was determined noninvasively using impedance cardiographic techniques. During the initial stages of seated recovery, SI progressively increased ...
Shore S E - - 1995
Single unit responses were obtained from 8 classes of cells in the ventral cochlear nucleus: Primarylike, Primarylike with characteristic frequencies below 1 kHz, Primarylike-Notch, Sustained Chopper, Transient-Chopper, Low-intensity Chopper; Onset with later activity and On-Chopper. Stimuli were paired tonebursts, a masker preceding a probe, separated by time delta t ms. ...
Bonifazi M - - 1995
In eight top-level male endurance swimmers the aerobic performance and the response to exercise of total testosterone (T), free testosterone (fT), sex hormone binding globulin (SHBG), non-SHBG-bound testosterone (NST) and cortisol (C) were evaluated during a training season. The swimmers participated in three test sessions which occurred 6, 12 and ...
Hardwick J C - - 1995
1. The extent of recovery of endplate sensitivity following a 5 or 10 min exposure to carbachol was determined from measurements of miniature endplate current (m.e.p.c.) amplitudes in voltage-clamped snake twitch fibre endplates. M.e.p.c. amplitude recovery was dependent on the carbachol concentration (0.27-5.4 mM) and duration of application. Staurosporine pretreatment ...
Falk B - - 1995
The purpose of this study was to examine the effect of ambient heat on the decrease in blood lactate concentration ([LA]bl) during passive and during active recovery. Ten trained men performed six 1-min bouts of exercise at 100% VO2peak on a cycle ergometer, with 1-min rest between the bouts. Each ...
Thiriet P - - 1995
The sickle cell trait (HbAS) does not affect anaerobic exercise performance. However, lower blood lactate concentrations ([La-]) are consistently found during repeated anaerobic exercise in HbAS, and could be related to type of recovery. To study this, on three different occasions 17 HbAS and 17 matched control athletes (HbAA) underwent ...
Weiss J - - 1995
A pulsatile GnRH signal is required for the maintenance of LH and FSH secretion. Studies in animals and in perifused pituitary cells have shown that continuous exposure to GnRH leads to decreased gonadotropin secretion and a blunted secretory response to subsequent pulses of GnRH, a process referred to as homologous ...
Brown S P - - 1994
The purpose of this investigation was to examine blood pressure responses during recovery from resistance exercise and cycling. Seven normotensive volunteers (5 males, 2 females) were studied. Resistance exercise consisted of three sets of five exercises (arm curl, hamstring curl, squat, 'lat pull' and bench press) on four occasions: (1) ...
Choi D - - 1994
The purpose of this investigation was to determine the effect of passive and active recovery on the resynthesis of muscle glycogen after high-intensity cycle ergometer exercise in untrained subjects. In a cross-over design, six college-aged males performed three, 1-min exercise bouts at approximately 130% VO2max with a 4-min rest period ...
Van der Hoeven J H - - 1994
Muscle fiber conduction velocity (MFCV) and surface electromyographic parameters were studied in the brachial biceps muscle of healthy males during voluntary intermittent isometric contractions at 50% of maximum force. Recovery in the following 15 min was then observed. The measurements were performed during duty cycles of 33, 25, and 20%. ...
Piepoli M - - 1994
1. It is known that acute exercise is often followed by a reduction in arterial blood pressure. Little is known about the time course of the recovery of the blood pressure or the influence of the intensity of the exercise on this response. Controversy exists, in particular, concerning the changes ...
Campkin N T - - 1994
To assess rate of biophase recovery, the recovery from neuromuscular block with mivacurium in the isolated forearm was compared with that from vecuronium simultaneously administered into the other isolated forearm of six volunteers. In a second series of similar experiments, recovery from doxacurium was compared with that from vecuronium. Neuromuscular ...
Gillen C M - - 1994
To test the hypothesis that reduced baroreflex sensitivity is a direct result of exercise, we measured forearm vascular conductance (FVC) responses to graded lower body negative pressure (LBNP) 2, 20, and 44 h after intense exercise. Eight 4-min bouts of exercise at 85% of maximum oxygen uptake produced 3.5 +/- ...
Hildebrand S V - - 1994
Evoked hind limb digital extensor tension (hoof twitch) was maintained at 40% of baseline for 1 h by atracurium infusion in 7 horses anaesthetised with halothane. After 1 h, atracurium was discontinued and hoof twitch allowed to recover to 75%. Atracurium was again given by infusion to maintain 40% twitch ...
Kern S E - - 1994
We have developed an easy-to-use, noninvasive piezoelectric sensor for quantitative monitoring of neuromuscular block. In a clinical evaluation with 23 patients, the piezo sensor was objectively compared to a mechanomyogram (MMG) for its ability to measure train-of-four (TOF) ratio from the adductor pollicis. After administration of succinylcholine (120-200 mg intravenously ...
Igumor E O - - 1994
Three Yersinia species Yersinia enterocolitica, serogroup 0:9, Yersinia intermedia, serogroup 0:52.54 and Yersinia fredricksenii, serogroup 0:44.45 were experimentally inoculated into 249 giant African snails, Achachatina marginata, and the rate of recovery, as well as change (loss or gain) in weight determined. Results obtained showed that there was a high recovery ...
Sinacore D R - - 1994
BACKGROUND AND PURPOSE: The purposes of this study were (1) to describe the characteristics of recovery of peak torque after a 1-minute bout of isokinetic exercise of the quadriceps femoris muscle, (2) to determine the short-term reliability of the recovery of peak torque, and (3) to determine whether the recovery ...
Jeevanandam M - - 1994
Several factors, including age, nutritional and metabolic status, and underlying pathological conditions, should be considered in estimating the correction factor for labeled CO2 retention. We have evaluated the nutritional influence of this correction factor in a group of severely injured (injury severity score = 33 +/- 5), hypermetabolic, and highly ...
Camus G - - 1994
We studied the effects of short-term submaximal exercise on the plasma levels of myeloperoxidase ([MPO]) and C5a anaphylatoxin ([C5a]), taken as specific markers of polymorphonuclear neutrophil (PMN) and complement activation, respectively. Eleven young, healthy male volunteers were subjected to a constant-load concentric exercise on a cycle ergometer (20 min at ...
Billette J - - 1994
The wide variety of delays that the atrioventricular node can generate in response to an increased rate are explained by dynamic interactions between the three intrinsic properties of recovery, facilitation, and fatigue. The functional model presented suggests that any deviation of nodal conduction time from its minimum basal value represents, ...
Zelikovski A - - 1993
The Lymphapress, a pneumatic sequential intermittent device is recognized as one of the most effective conservative treatments for lymphoedema, due to its effective 'milking mechanism'. This led us to hypothesize that accelerated removal of fatigue-causing metabolites by mechanical massage could improve an athlete's performance capacity. We conducted trials with 11 ...
Metges C C - - 1993
In this study the conversion of orally administered [1-(13)C]- and [8-(13)C]triolein to CO(2) was compared in normal postprandial human subjects (3 female, 3 male). After an overnight fast the subjects consumed hourly meals of a liquid formula diet over 12 h (8.3% of the predicted 24 h resting energy expenditure/h). ...
Fulstow R - - 1993
In November 1992 the European Resuscitation Council issued new guidelines which included the description of a modified recovery position. Anecdotal reports have suggested that this 'new' position may result in obstructed venous return in the dependent arm. The findings of a small study to evaluate the 'new' recovery position are ...
Frey G C - - 1993
This study investigated the effects of blood lactate and norepinephrine levels and rectal temperature on excess postexercise oxygen consumption (EPOC) following two different exercise intensities. Six trained and seven untrained women each performed two exercise tests, short-term high-intensity exercise ([HI] approximately 80% maximum oxygen consumption [VO2max]) and long-term low-intensity exercise ...
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