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, ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...

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 ...

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, ...

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 ...

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, ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

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) ...

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%. ...

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 ...

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 ...

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 ...

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 +/- ...

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 ...

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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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). ...

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 ...

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 ...

Physical exertions are related to sudden cardiac death following acute myocardial infarction (AMI). Abnormalities in the autonomic modulation during exercise were noted in animals with AMI that were susceptible to potentially lethal arrhythmias. This study was done to evaluate the changes in the autonomic activity during exercise and recovery in ...

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 ...

Different recovery strategies from maximal exercise seem to induce different lactate utilization patterns without significantly affecting performance on one subsequent maximal exercise. It remains unclear however, how varying recovery modalities affects repeated maximal exercise. To study this, we examined in 16 subjects, the influence of passive (P), active leg (L) ...

This study was conducted to determine whether boys differ from men in their ability to recover from high-intensity exercise. Two groups of volunteers, 8 prepubertal boys (9-12 yr) and 8 young men (19-23 yr), were similar in their peak oxygen uptake (49.6 +/- 6.6 vs. 51.1 +/- 6.6 ml.min-1 x ...

Cardiovascular and sympathetic profiles in response to a series of physical and mental challenges were examined during recovery from an acute bout of aerobic exercise performed at 60% VO2,max for 30 min. 9 healthy men were tested on two occasions, once under an experimental (exercise) and once under a control ...

The effect of active recovery after intense muscular exercise was examined by 31P-MRS. Seven healthy males participated in this study, and their right wrist flexor muscles were examined. Each subject flexed the right wrist at 60% of the maximum voluntary contraction (MVC) until the intracellular pH in the wrist flexor ...

Clinical features and hearing recovery were compared between three types of perilymphatic fistula groups; surgically confirmed (PLF-conf, n = 16), suspected (PLF-susp, n = 24) and traumatic (trauma-PLF, n = 11). Initial average hearing level was best in the PLF-susp group (50.9 dBHL), followed by the trauma-PLF (55.7 dBHL) and ...

The purpose of this investigation was to examine state anxiety and blood pressure responses during ambulatory recovery from resistance exercise. Fourteen females completed three separate bouts of resistance exercise in which the sets (N = 3), repetitions (N = 10), exercise type (knee extension, knee flexion, arm pull down, chest ...

The advantage of active over passive recovery from long and intermediate duration exercise is well documented. Success has been attributed to metabolite washout and/or lactate (La) utilization by the active musculature. This study was designed to determine whether active recovery was superior to passive rest during short duration, high intensity ...

Although the central cardiovascular adjustments to exercise in the heat have been identified, little is known about the post-exercise hemodynamics during recovery from exercise and heat stress. This study examined heart rate (HR), stroke index (SI), cardiac index (CI), systemic vascular resistance (SVR), systolic (SBP) and diastolic (DBP) blood pressure ...

The neuromuscular effects of intravenous rocuronium bromide, 0.6 mg.kg-1 or 0.9 mg.kg-1, were studied in four groups of 10 patients during anaesthesia with or without halothane (0.5-0.75% inspired concentration). Neuromuscular block was monitored using mechanomyography and train-of-four stimulation. The mean times to onset of complete neuromuscular block were 58 and ...

Oxygen consumption and swimming performance of rainbow trout exposed to sublethal concentrations (10-50 microliters/20 L) of pyrethroid (S-deltamethrin) pesticide was studied in a Brett-type respirometer during recovery. Results showed wide variations reflecting the varied responses of different individual fish to the test regime. In most cases values of oxygen consumption ...

Intact or skinned atrial and ventricular myocytes from frog heart were mounted horizontally between the lever arms of a force transducer and a servo-controlled electromagnetic loud-speaker "motor" in a trough filled with Ringer or relaxing solution. The myocyte length-sarcomere length relation for intact preparations at rest is linear at least ...