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Results 201 - 250 of 1380
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Bongers Bart C - - 2012
The oxygen uptake efficiency slope (OUES) has been proposed as an 'effort-independent' measure of cardiopulmonary exercise capacity, which could be used as an alternative measurement for peak oxygen uptake (VO2peak) in populations unable or unwilling to perform maximal exercise. The aim of the current study was to investigate the validity ...
Kim Do-Yeon - - 2012
Limited validation research exists for applications of breath-by-breath systems of expired gas analysis indirect calorimetry (EGAIC) during exercise. We developed improved hardware and software for breath-by-breath indirect calorimetry (NEW) and validated this system as well as a commercial system (COM) against 2 methods: (i) mechanical ventilation with known calibration gas, and ...
Li Xin - - 2012
To evaluate whether a customized exercise tolerance testing (ETT) protocol based on an individual's habitual gait speed (HGS) on level ground would be a valid mode of exercise testing older adults. Although ETT provides a useful means to risk-stratify adults, age-related declines in gait speed paradoxically limit the utility of ...
Andre Matthew J - - 2012
Andre, MJ, Fry, AC, Heyrman, MA, Hudy, A, Holt, B, Roberts, C, Vardiman, JP, and Gallagher, PM. A reliable method for assessing rotational power. J Strength Cond Res 26(X): 000-000, 2012-Rotational core training is said to be beneficial for rotational power athletes. Currently, there has been no method proposed for ...
Kim Yang-Soo - - 2012
Early passive motion exercise has been the standard rehabilitation protocol after rotator cuff repair for preventing postoperative stiffness. However, recent approaches show that longer immobilization may enhance tendon healing and quality. To elucidate whether early passive motion exercise affects functional outcome and tendon healing after arthroscopic rotator cuff repair. Randomized ...
Eston Roger - - 2012
The validity of predicting peak oxygen uptake ([Formula: see text]) in sedentary participants from a perceptually regulated exercise test (PRET) is limited to two cycle ergometry studies. We assessed the validity of a treadmill-based PRET. Active (n = 49; 40.7 ± 13.8 years) and sedentary (n = 26; 33.4 ± 13.2 y) participants completed two PRETS (PRET 1 and ...
Moreira Alexandre - - 2012
Moreira, A, McGuigan, MR, Arruda, AFS, Freitas, CG, and Aoki, MS. Monitoring internal load parameters during simulated and official basketball matches. J Strength Cond Res 26(X): 000-000, 2012-The purpose of this study was to compare the internal load responses (session rating of perceived exertion [RPE] and salivary cortisol) between simulated ...
Chuang Ming-Lung - - 2012
BACKGROUND: PaCO₂ as measured during exercise in COPD patients is poorly predicted (PaCO₂pred) from lung function testing and some noninvasive measurements such as end-tidal PCO₂s (PETCO₂). OBJECTIVE: We performed a number of statistical techniques on PETCO₂ and its interaction with other physiologic variables during exercise testing in order to improve ...
Lancioni Giulio E - - 2012
The present three single-case studies assessed the effectiveness of technology-based programs to help three persons with multiple disabilities exercise adaptive response schemes independently. The response schemes included (a) left and right head movements for a man who kept his head increasingly static on his wheelchair's headrest (Study I), (b) left- ...
Reix Philippe - - 2012
: Can a session of exercise with incorporated expiratory manoeuvres substitute for a session of breathing techniques for airway clearance in children with cystic fibrosis? Are children with cystic fibrosis as co-operative and satisfied with the exercise regimen as with the breathing techniques?. Randomised, cross-over trial with concealed allocation and ...
Daşkapan Arzu - - 2012
Objective: There are limited number of documents showing the relations between cardiovascular fitness and muscle strength. This study aimed to determine the effects of two different quadriceps strengthening exercise approaches on cardiovascular fitness in healthy female subjects. Methods: Forty female university students participated in this study on a voluntary basis. ...
Bing Alison - - 2012
Polyarteritis nodosa (PAN) can affect many organ systems but usually presents with a systemic illness characterised by malaise, weight loss, myalgia, arthralgia and signs of end-organ damage. Here, we report a case of PAN that presented acutely in a previously well 46-year-old man with visible haematuria and loin pain coinciding ...
Fukuba Yoshiyuki - - 2012
We investigated whether the elevated muscle temperature induced by the first bout influenced the [Formula: see text] response during a second-bout of heavy exercise. The control conditions were two consecutive 6-min leg cycling bouts (work rate: Δ50% between LT and [Formula: see text]max) separated by a 6-min baseline at 20 ...
Schattke Sebastian - - 2012
Our study compares new single beat 3D echocardiography (sb3DE) to cardiovascular magnetic resonance imaging (CMR) for the measurement of right ventricular (RV) dimension and function immediately after a 30 km run. This is to validate sb3DE against the "gold standard" CMR and to bring new insights into acute changes of ...
Zimmerli Lukas - - 2012
The motivation of patients during robot-assisted rehabilitation after neurological disorders that lead to impairments of motor functions is of great importance. Due to the increasing number of patients, increasing medical costs and limited therapeutic resources, clinicians in the future may want patients to practice their movements at home or with ...
Endo Masako Y - - 2012
Post-exercise hypotension (PEH) following prolonged dynamic exercise arises from increased total vascular conductance (TVC) via skeletal muscle vasodilation. However, arterial vasodilation of skeletal musculatures does not entirely account for the rise in TVC. The aim of the present study was to determine the contribution of vascular conductance (VC) of the ...
Hoogeboom Thomas J - - 2012
Our aim was to develop a rating scale to assess the therapeutic validity of therapeutic exercise programmes. By use of this rating scale we investigated the therapeutic validity of therapeutic exercise in patients awaiting primary total joint replacement (TJR). Finally, we studied the association between therapeutic validity of preoperative therapeutic ...
Hareendran Asha - - 2012
Measuring dyspnea intensity associated with exercise provides insights into dyspnea-limited exercise capacity, and has been used to evaluate treatment outcomes for chronic obstructive pulmonary disease (COPD). Three patient-reported outcome scales commonly cited for rating dyspnea during exercise are the modified Borg scale (MBS), numerical rating scale for dyspnea (NRS-D), and ...
Casey Darren P - - 2012
We previously demonstrated that acute hypoperfusion in exercising human muscle causes an immediate increase in vascular resistance that is followed by a partial restoration (less than 100% recovery) of flow. In the current study we examined the contribution of α-adrenergic vasoconstriction in the initial changes in vascular resistance at the ...
Edwards Lindsay M LM Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom. - - 2012
Magnetic resonance spectroscopy (MRS) provides an exceptional opportunity for the study of in vivo metabolism. MRS is widely used to measure phosphorus metabolites in trained muscle, although there are no published data regarding its reproducibility in this specialized cohort. Thus, the aim of this study was to assess the reproducibility ...
Barcellos Franklin C FC Postgraduate Program in Epidemiology, Federal University of Pelotas, Brazil, Rua Marechal Deodoro, 1160 Pelotas, RS, Brazil. - - 2012
Chronic kidney disease is an important public health threat. Such patients present high morbidity and mortality due to cardiovascular disease, with low quality of life and survival, and also high expenditure resulting from the treatment. Arterial hypertension is both a cause and a complication of kidney disease; also, arterial hypertension ...
Watt Brian P BP Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583, - - 2012
An observational study was performed as a preliminary investigation into the use of transcranial Doppler ultrasound (TCD) for recording cerebral hemodynamic changes during multiple tasks. TCD is a method of measuring cerebral blood flow (CBF) using ultrasound transducers in contact with the surface of the head. Using the maximum flow ...
Hartley Geoffrey L - - 2011
The modulation of sub-maximal voluntary exercise intensity during heat stress has been suggested as a behavioral response to maintain homeostasis; however, the relationship between thermophysiological cues and the associated response remains unclear. Awareness of an environmental manipulation may influence anticipatory planning before the start of exercise, making it difficult to ...
Rueddel Torben - - 2012
We assessed the acute impact of physical exercise on the retinal vessel diameter and the regulation of vasoconstriction and vasodilatation owing to flicker that has never been examined before. Forty young (mean age 24 years) healthy subjects (26 women and 14 men) had retinal examinations with dynamic vessel analysis prior and ...
Hou Chen - - 2011
Theoretical considerations suggest that the mammalian metabolic rate is linearly proportional to the surface areas of mitochondria, capillary, and alveolar membranes. However, the scaling exponents of these surface areas to the mammals' body mass (approximately 0.9-1) are higher than exponents of the resting metabolic rate (RMR) to body mass (approximately ...
Yau A - - 2011
Angiotensin I-converting enzyme (ACE) plays a pivotal role in whole body fluid balance and the degradation of bradykinin. A common allelic variant with a 287 base pair insert has been identified on the ACE gene. The homozygous insertion genotype (II) corresponds with lower basal serum ACE concentrations compared to the ...
Yin Jifu - - 2011
A variety of research has linked high temperature to outdoor thermal comfort in summer, but it remains unclear how outdoor meteorological environments influence people's thermal sensation in subtropical monsoon climate areas, especially in China. In order to explain the process, and to better understand the related influential factors, we conducted ...
O'Neal Eric K - - 2011
The behaviors and beliefs of recreational runners with regard to hydration maintenance are not well elucidated. To examine which beverages runners choose to drink and why, negative performance and health experiences related to dehydration, and methods used to assess hydration status. Cross-sectional study. Marathon registration site. Men (n = 146) ...
Dascombe Ben - - 2013
Abstract While the effect of lower body compression garments on performance and physiological responses are well documented, no studies have examined the effect of upper body compression garments (UBCG) on upper-body dominant exercise. This study examined the effects of wearing UBCG on performance and physiological responses during simulated flat-water kayaking. ...
Wang Huei-Shyong - - 2011
We report 2 boys, 11 and 7 years old, whose Tourette's disorder improved significantly after a period of repeated, sustained practice of activities requiring reflexive responses One boy engaged in physical exercise including hand-eye co-ordination (table tennis for 6 hours every weekday) and the other learned foreign languages (5 languages ...
Hamer Mark M Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK. - - 2012
Exaggerated blood pressure (BP) response to exercise is a strong predictor of cardiovascular disease, although the mechanisms remain unknown. The purpose was to examine the association between systemic markers of vascular inflammation and exercise blood pressure (BP) responses. Participants were 191 healthy men and women (aged 45-59 years). Blood pressure ...
Uchida Masataka - - 2011
It remains unclear whether immune response to viral infection is inhibited by severe exercise. We determined whether exhaustive exercise inhibits interferon (IFN)-β and tumor necrosis factor (TNF)-α production after injection of synthetic double-stranded (ds) RNAs, a polyriboinosinic polyribocytidylic acid (poly I:C), as viral infection model. Male C3H/HeN mice, which were ...
Ahlgren Joslyn K - - 2012
Some of the benefits of exercise appear to be mediated through modulation of neuronal excitability in central autonomic control circuits. Previously, we identified that six weeks of voluntary wheel running had a protective effect during hemorrhage (HEM), limiting both the hypotensive phase of HEM and enhancing recovery. The present study ...
Bigley Austin B - - 2011
NK-cells and γδ T-cells are cytotoxic effectors of the immune system that are preferentially mobilized into the blood compartment in response to acute stress and exercise. While infection history is known to alter the phenotype and exercise-responsiveness of CD8+ T-cells, the influence of latent cytomegalovirus (CMV) and Epstein-Barr virus (EBV) ...
Bottaro Martim - - 2011
Graduated compression stockings have been used as a mechanical method of deep vein thrombosis prophylaxis for several years. Several studies have demonstrated an increase in mean deep venous velocity, reduced venous pooling, improved venous return, and increase blood lactate clearance in subjects who wore graduated compression stockings during exercise. A ...
Leal Anna K - - 2011
Cyclooxygenase metabolites stimulate or sensitize group III and IV muscle afferents, which comprise the sensory arm of the exercise pressor reflex. The thromboxane (TP) receptor binds several of these metabolites, whose concentrations in the muscle interstitium are increased by exercise under freely perfused conditions and even more so under ischemic ...
Stych Kate - - 2011
Adolescence provides a significant opportunity to influence attitudes toward activity. It has been proposed that affective responses are the first link in the hypothesized exercise intensity-affect-adherence chain. The aim of this study was to explore young low-active adolescents' affective responses to different exercise intensities using quantitative and qualitative methodologies. Participants ...
Garry Mary G - - 2011
Abnormal cardiovascular responses to exercise in heart failure contribute significantly to the morbidity and mortality in the patient population. These abnormal responses may be the result of peripheral impairment in the skeletal muscle and the neurons that innervate the muscle. We present the current literature on the role of muscle ...
Etheridge Timothy - - 2011
Chronic reductions in tissue O(2) tension (hypoxia) are associated with muscle atrophy and blunted hypertrophic responses to resistance exercise (RE) training. However, the effect of hypoxia on muscle protein synthesis (MPS) at rest and after RE is unknown. In a crossover study, seven healthy men (21.4 ± 0.7 yr) performed ...
Greene Nicholas R - - 2011
We compared cardiorespiratory responses to exercise on an underwater treadmill (UTM) and land treadmill (LTM) and derived an equation to estimate oxygen consumption (VO2) during UTM exercise. Fifty-five men and women completed one LTM and five UTM exercise sessions on separate days. The UTM sessions consisted of chest-deep immersion, with ...
Frisoli A - - 2011
The distinguishing features of active exoskeletons are the capability of guiding arm movement at the level of the full kinematic chain of the human arm, and training full 3D spatial movements. We have specifically developed a PD sliding mode control for upper limb rehabilitation with gain scheduling for providing "assistance ...
Burniston Jatin G - - 2011
Regular exercise is effective in the prevention of chronic diseases and confers a lower risk of death in individuals displaying risk factors such as hypertension and dyslipidemia. Thus, knowledge of the molecular responses to exercise provides a valuable contrast for interpreting investigations of disease and can highlight novel therapeutic targets. ...
Kuennen Matthew - - 2011
Thermotolerance and heat acclimation are key adaptation processes that have been hitherto viewed as separate phenomena. Here, we provide evidence that these processes may share a common basis, as both may potentially be governed by the heat shock response. We evaluated the effects of a heat shock response-inhibitor (quercetin; 2,000 ...
King N A - - 2011
Does exercise promote weight loss? One of the key problems with studies assessing the efficacy of exercise as a method of weight management and obesityis that mean data are presented and the individual variability in response is overlooked. Recent data have highlighted the need to demonstrate and characterise the individual ...
Moreira Alexandre - - 2011
Moreira, A, Arsati, F, de Oliveira Lima-Arsati, YB, de Freitas, CG, and de Araújo, VC. Salivary immunoglobulin a responses in professional top-level futsal players. J Strength Cond Res XX(X): 000-000, 2011-The purpose of this study was to investigate the responses of salivary immunoglobulin A (SIgA) in 10 professional top-level Brazilian ...
Zannini Lucia - - 2011
zannini l., cattaneo c., brugnolli a. & saiani l. (2011) How do healthcare professionals perceive themselves after a mentoring programme? A qualitative study based on the reflective exercise of 'writing a letter to yourself'. Journal of Advanced Nursing. ABSTRACT: Aims.  This article is a report of a study of participants' responses ...
Camillo Carlos Augusto - - 2011
BACKGROUND: Current literature lacks solid evidence on the improvement of heart rate variability (HRV) after exercise training in patients with COPD. OBJECTIVES: We aimed to investigate changes in HRV after two exercise training programs in patients with COPD and to investigate the determinants of these eventual changes. METHODS: Forty patients ...
Gosselink R - - 2011
A meta-analysis including 32 randomised controlled trials on the effects of inspiratory muscle training (IMT) in chronic obstructive pulmonary disease (COPD) patients was performed. Overall and subgroup analyses with respect to training modality (strength or endurance training, added to general exercise training) and patient characteristics were performed. Significant improvements were ...
Urschel K L - - 2010
Providing protein or amino acid mixtures in combination with glucose to post exercise in man has resulted in increases in the post feeding insulin response and in muscle glycogen and protein synthesis rates. However, whether protein and/or amino acids can modify the post exercise insulin responses in horses remains to ...
Braniš Martin - - 2011
It has been noticed many times that schools are buildings with high levels of particulate matter concentrations. Several authors documented that concentrations of particulate matter in indoor school microenvironments exceed limits recommended by WHO namely when school buildings are situated near major roads with high traffic densities. In addition, exercise ...
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