Search Results
Results 251 - 300 of 678
< 1 2 3 4 5 6 7 8 9 10 11 >
Journeay W Shane - - 2005
The purpose of the study was to examine the effect of 1) active (loadless pedaling), 2) passive (assisted pedaling), and 3) inactive (motionless) recovery modes on mean arterial pressure (MAP), cutaneous vascular conductance (CVC), and sweat rate during recovery after 15 min of dynamic exercise in women. It was hypothesized ...
Motamed C - - 2005
BACKGROUND: Post-tetanic count is a valuable method to assess profound neuromuscular blockade. However, subsequent responses to repetitive stimulation might be altered due to post tetanic facilitation (PTF). To avoid PTF, it has been advocated to limit the interval of stimulation from 6 to 10 min. The impact of PTF on ...
Dawson B - - 2005
This study investigated whether or not immediate post-game recovery procedures could enhance the rate of recovery in Australian football players in the first 48 hr after a game. Control, stretch, pool walking and hot/cold recoveries were trialled. Typical next day recovery training (25 min of pool exercise) was also performed ...
Takahashi Tatsuhisa - - 2005
The purpose of the study was to characterize the effects of muscular contractions (the muscle pump) and body posture on cardiovascular responses during recovery from moderate exercise in the upright-sitting or supine positions. Heart rate (HR), stroke volume (SV), and cardiac output (CO) were measured in seven young male subjects ...
Hillman Jan - - 2005
OBJECTIVE: To evaluate a new intracerebral microdialysis catheter with a high-cutoff membrane and its potential for the study of macromolecules in the human brain. METHODS: Paired intracerebral microdialysis catheters were inserted in 10 patients who became comatose after subarachnoid hemorrhage or traumatic brain injury and were then treated in our ...
Hug François - - 2005
PURPOSE: Aerobic training of professional road cyclists is linked to tremendous aerobic capacities that have never been clearly related to what occur in skeletal muscles submitted to a specific exercise. The aim of the present study was to examine specifically metabolic recovery after an incremental cycling exercise performed until exhaustion ...
Bock Otmar O Institute of Physiology and Anatomy, German Sport University, 50927, Köln, Germany. - - 2005
We have studied the effect of rest breaks on sensorimotor adaptation to rotated visual feedback in a pointing task. Adaptive improvement was significantly poorer after 1-s breaks than after 5-40-s breaks, with no significant difference among the latter break durations. The benefit of >1-s breaks emerged soon after the onset ...
Deeg Dorly J H - - 2005
PURPOSE: Longitudinal data have provided evidence on factors that increase the risk of incidence of functional limitations. However, little insight exists in course types of functional limitations other than simple incidence or recovery. METHODS: This contribution examines the variety of course types across the first three cycles of the Longitudinal ...
Hancock Thomas V - - 2005
Intermittent activity, alternating bouts of activity and rest, can extend endurance relative to continuous locomotion. Utilizing a rapid fatiguing activity intensity (1.08 m s(-1)), Dipsosaurus dorsalis (n = 14) ran repeated bouts of varying durations (5, 15, or 30 s) interspersed with variable pause periods (100%, 200%, 400%, or 800% ...
Zafeiridis Andreas - - 2005
PURPOSE: This study examined the effects of age on recovery of peak torque of knee extensors (PTEX) and flexors (PTFL), and total work (TW) during high-intensity intermittent 30-s (HI30) and 60-s (HI60) exercise in boys (N=19; age, 11.4+/-0.5 yr), teens (N=17; age, 14.7+/-0.4 yr), and men (N=18; age, 24.1+/-2.0 yr). ...
Grenon S Marlene - - 2005
BACKGROUND: Microgravity and simulated microgravity (SM) lead to important changes in orthostatic tolerance (OT), the autonomic nervous system (ANS), and the volume-regulating systems. After one is exposed to microgravity or SM, a period of readaptation to gravity is known to take place, but it is not certain if orthostatic function ...
Tokumaru Osamu - - 2005
OBJECTIVE: Acupressure at Neiguan point (P6) has been used as an antiemetic in Eastern countries and many studies have reported its effectiveness on gastrointestinal symptoms. The aim of the present study was to investigate the effects of acupressure on gastric myoelectrical activity in healthy humans. MATERIAL AND METHODS: Fifteen healthy ...
Robergs Robert - - 2005
The purpose of this study was to measure the recovery kinetics of pH and lactate for the conditions of pre-exercise acidosis, alkalosis, and placebo states. Twelve trained male cyclists completed 3 exercise trials (110% workload at VO2max), ingesting either 0.3 g/kg of NH4Cl (ACD), 0.2 g/kg of Na+HCO3- and 0.2 ...
Kenny Glen P - - 2005
The following study was conducted to evaluate the hypothesis that an increase in the postexercise onset threshold for cutaneous vasodilation (Th(VD)) and sweating (Th(SW)) would not be observed upon the restoration of baseline mean arterial pressure (MAP). Subjects remained either seated resting for 15 min or performed 15 min of ...
Clarkson Kathleen - - 2005
The goal of this study was to examine the cellular response to exhaustive exercise in male and female rainbow trout to determine if HSPs are involved in the early stages of the recovery process. Levels of HSPs and key metabolic parameters were measured in white muscle, heart plasma, and blood ...
Huang Po-Hsun - - 2005
An attenuated heart rate recovery immediately after exercise, thought to be a marker of reduced parasympathetic activity, has been demonstrated to be an independent predictor of all-cause mortality in several large-scale studies; however, the mechanisms by which impaired heart rate recovery confers an increased risk of death are not clear. ...
Fei Ding-Yu - - 2005
INTRODUCTION: Arterial stiffness and heart rate recovery (HRR) following exercise testing have emerged as variables holding significant prognostic value in a number of populations. The purpose of the present study is to examine the relationship between arterial stiffness and HRR in a group of apparently healthy subjects. METHODS: Two hundred ...
Kuo Calvin C - - 2005
To evaluate the hypothesis that lipid oxidation predominates in postexercise recovery, we examined healthy men (n = 6; age = 21.2 +/- 0.6 yr) and women (n = 6; age = 22.8 +/- 2.1 yr) during and after two exercise tasks [89 min at 45% and 60 min at 65% ...
Geurts Alexander C H - - 2005
Recently, interest in the mechanisms underlying balance recovery following stroke has grown, because insight into these mechanisms is necessary to develop effective rehabilitation strategies for different types of stroke. Studies dealing with the recovery of standing balance from stroke are, however, limited to rehabilitation inpatients with a unilateral supratentorial brain ...
Brown Amy C - - 2004
The purpose of this study was to determine whether ingestion of a multinutrient supplement containing 3 tricarboxylic-acid-cycle intermediates (TCAIs; pyridoxine-alpha-ketoglutarate, malate, and succinate) and other substances potentially supporting the TCA cycle (such as aspartate and glutamate) would improve cyclists' time to exhaustion during a submaximal endurance-exercise test (approximately 70 % ...
Sbriccoli Paola - - 2004
STUDY DESIGN: In vivo feline model subjected to variable number of repetitions of a short static lumbar flexion followed by an equally long rest period. OBJECTIVES: The purpose of this study was to determine the influence of the number of repetitions as a risk factor in promoting a cumulative low ...
Chatard J C - - 2004
This study was undertaken to determine whether or not elastic compression stockings (ECS) can be used in elderly sportsmen to increase performance and leg pain recovery between two maximal exercises. For 2 weeks, 12 trained elderly cyclists, 63 (3) years old, performed two 5-min maximal exercises, Plim1 and Plim2, separated ...
Toubekis Argyris G - - 2005
The purpose of this study was to investigate the effect of active or passive recovery after two different rest intervals on performance during repeated bouts of maximal swimming exercise. Sixteen swimmers (eight males and eight females) performed four trials in a counterbalanced order. Eight repetitions of 25-m sprints (8 x ...
Martin Vincent - - 2004
PURPOSE: This study aimed to evaluate the benefit of using low-intensity running or electromyostimulation (EMS) to hasten the recovery process from eccentric-contraction-induced injury. METHODS: Before and 30 min, 24 h, 48 h, and 96 h after a one-legged downhill run, electrical stimulations were applied to the femoral nerve of healthy ...
Lane Kirstin N - - 2004
The purpose of this study was to examine the effects of active recovery (AR), massage (MR), and cold water immersion (CR) on performance of repeated bouts of high-intensity cycling separated by 24 hours. For each recovery condition, subjects were asked to take part in 2 intermittent cycling sessions; 18 minutes ...
Hodgson C J - - 2004
Effluent retention in a constructed wetland was determined using both microbial and chemical tracers. Seasonal variation in effluent retention was the main focus of the study. The biotracers used in the study were the coliphage MS2, a bacteriophage of Enterobacter cloacae and antibiotic resistant endospores of Bacillus globigii. Two separate ...
Lattier G - - 2004
The purpose of this study was to determine the effect of three types of recovery intervention to neuromuscular function after high-intensity uphill running exercise. The 20-min recovery interventions were (i) passive, (ii) active (running at 50 % of maximal aerobic speed), and (iii) low-frequency electromyostimulation. Evoked twitch and maximal voluntary ...
Benight Charles C - - 2004
The present article integrates findings from diverse studies on the generalized role of perceived coping self-efficacy in recovery from different types of traumatic experiences. They include natural disasters, technological catastrophes, terrorist attacks, military combat, and sexual and criminal assaults. The various studies apply multiple controls for diverse sets of potential ...
Pavol Michael J - - 2004
While neuromotor responses associated with successfully restoring balance have been widely characterized, little is known of how responses employed to regain balance fail. We identified biomechanical factors that characterized the unsuccessful recovery responses to a novel perturbation. An unexpected forward slip was induced, using a low-friction platform, just after seat-off ...
Koike Akira - - 2004
We compared cerebral oxygenation during exercise and during exercise recovery between 22 healthy subjects and 35 patients with idiopathic dilated cardiomyopathy (IDC). Although cerebral oxyhemoglobin increased during exercise in most of the healthy subjects, oxyhemoglobin decreased during exercise in 15 of 35 patients with IDC. Cerebral oxygenation during exercise and ...
Kannankeril Prince J - - 2004
BACKGROUND: Exercise and its recovery period are associated with increased risk of death relative to sedentary periods. They are also accompanied by dynamic changes in autonomic tone. Little information is available regarding parasympathetic effects during high-intensity exercise and recovery. METHODS: Ten normal subjects (five women; age 33 +/- 2 years) ...
Raman Aarthi - - 2004
Measurement of 13C-labeled fatty acid oxidation is hindered by the need for acetate correction, measurement of the rate of CO2 production in a controlled environment, and frequent collection of breath samples. The use of deuterium-labeled fatty acids may overcome these limitations. Herein, d31-palmitate was validated against [1-13C]palmitate during exercise. Thirteen ...
Crisafulli Antonio - - 2004
We aimed to investigate haemodynamics during active and passive recovery following repeated bouts of supramaximal exercise. Seven male athletes underwent two sessions of supramaximal exercise which consisted of a warm-up and of five bouts of cycling at the maximum speed possible for 30 s against a resistance equivalent to 150% ...
Desgorces François Denis - - 2004
The aim of this study was to observe the effects of exercise on plasma free fatty acids (FFA), the catecholamines (adrenaline, noradrenaline, dopamine) and leptin levels, before and after training, to determine their possible influence on the improvement of the regulation of energy homeostasis. Eleven trained rowers performed two exercise ...
Hinds Tessa - - 2004
PURPOSE: At present, there is little scientific evidence that postexercise manual massage has any effect on the factors associated with the recovery process. The purpose of this study was to compare the effects of massage against a resting control condition upon femoral artery blood flow (FABF), skin blood flow (SKBF), ...
Ronsen Ola - - 2004
Data on the metabolic responses to repeated endurance exercise sessions are limited. Thus, the aims of this study were to examine (1) the impact of prior exercise on metabolic responses to a subsequent exercise session and (2) the effect of different recovery periods between two daily exercise sessions on metabolic ...
Schrage William G - - 2004
We tested the hypothesis that the oral alpha1-adrenergic agonist, midodrine, would limit the fall in arterial pressure observed during exercise in patients with pure autonomic failure (PAF). Fourteen subjects with PAF underwent a stand test, incremental supine cycling exercise (25, 50, and 75 W), and ischemic calf exercise, before (control) ...
Lobachik V I - - 2004
In 3 identical experiments with head-down bed rest lasting 60, 90, and 120 days and involving 18 volunteers, dynamics of the development of cardiovascular system (C.V.S) deconditioning was studied. A set of radioisotopic research techniques was used. Volumes of hemocirculation, body fluids, and metabolic activity of the bone marrow were ...
Warren Daniel E - - 2004
Anoxic submergence in the Western painted turtle results in a severe metabolic acidosis characterized by high plasma lactate and depressed arterial pH, a response similar to that seen in other vertebrates following exhaustive exercise. We tested the hypothesis that 1 or 2 h of aerobic swimming following anoxic submergence would ...
Pierpont Gordon L - - 2004
Although delayed recovery of heart rate (HR) after exercise indicates poor prognosis, the relative role of parasympathetic reactivation versus sympathetic withdrawal in controlling exercise HR recovery remains controversial. Quantifying HR recovery is difficult because the rate of recovery varies with exercise level. This study develops a model of HR recovery ...
Dorado Cecilia - - 2004
The aim of this study was to determine the influence of activity performed during the recovery period on the aerobic and anaerobic energy yield, as well as on performance, during high-intensity intermittent exercise (HIT). Ten physical education students participated in the study. First they underwent an incremental exercise test to ...
Hemmerling Thomas M - - 2004
Phonomyography (PMG) is a new method for measuring neuromuscular blockade (NMB) at the larynx. In this study, we used PMG to compare NMB at the posterior cricoarytenoid (PCA) and the lateral cricoarytenoid muscle (LCA) in humans. Twelve patients were included in this study. Endotracheal intubation was performed without aid of ...
Blumen Marc B - - 2004
The increased genioglossus muscle (GGm) activity seen in obstructive sleep apnoea syndrome (OSAS) may lead to increased fatigability or longer recovery time of the tongue. Maximal force, endurance, and recovery times of the tongue, electromyogram (EMG) absolute value, and EMG spectral analysis of the GGm obtained during submaximal contractions were ...
Morio Béatrice - - 2004
PURPOSE AND METHODS: Breakdown rates of very low density lipoprotein triacylglycerols (VLDL-TAG) were quantified before (3 h), during (45 min), and after (3 h) moderate physical exercise at 40% VO2 max in young sedentary subjects (four male and four female, age 29.8 +/-1.6 yr, BMI 24.1 +/- 0.9 kg x ...
Tisdell, Eric Joseph
Excess post-exercise oxygen consumption (EPOC) has been attributed to metabolic, hemodynamic, neuroendocrine, and pulmonary factors. In one particular study, Barclay (J Appl Physiol 1986;61(3):1084-90) suggested that a lower rate of fatigue and hyperperfusion following a bout of exercise was due to a mechanism other than increased oxygen and substrate delivery. ...
Robertson A - - 2004
BACKGROUND: The effect of massage on recovery from high intensity exercise is debatable. Many studies on massage suffer from methodological flaws such as poor standardisation of previous exercise, lack of dietary control, and inappropriate massage duration. OBJECTIVE: To examine the effects of leg massage compared with passive recovery on lactate ...
McAinch Andrew J - - 2004
This study tested the hypothesis that active recovery between bouts of intense aerobic exercise would lead to better maintenance of exercise performance in the second bout of exercise. Seven trained men on 2 separate occasions (VO(2peak) = 58.3+/- 9.4 ml x kg(-1) x min(-1)) performed as much work as possible ...
Eikermann M - - 2004
BACKGROUND: Accelerometry (ACM) of adductor pollicis muscle has been used for monitoring of neuromuscular blockade but its validity compared with the gold standard, mechanomyography (MMG), has been questioned. During neuromuscular blockade we compared these methods and we assessed pulmonary function. METHODS: In awake partially paralyzed volunteers we spirometrically assessed pulmonary ...
Shibasaki Manabu - - 2004
The objective of this study was to identify whether muscle mechanoreceptor stimulation is capable of modulating sweat rate. Seven healthy subjects performed two 20-min bouts of supine exercise on a tandem cycle ergometer (60 rpm at 65% of maximal heart rate). After one bout, the subject stopped exercising (i.e., no ...
Journeay W Shane - - 2004
The purpose of the study was to examine the effect of 1) passive (assisted pedaling), 2) active (loadless pedaling), and 3) inactive (motionless) recovery modes on mean arterial pressure (MAP), skin blood flow (SkBF), and sweating during recovery after 15 min of dynamic exercise. It was hypothesized that an active ...
< 1 2 3 4 5 6 7 8 9 10 11 >