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Casiraghi Francesca - - 2013
The purpose of this study was to compare and validate the use of SenseWear Armband (SWA) placed on the arm (SWA ARM) and on the back (SWA BACK) in healthy humans during resting and a cycle-ergometer exercise and to evaluate the SWA to estimate Resting Energy Expenditure (REE) and Total ...
Maltseva D V - - 2012
The effects of 30-min medium-intensity exercise on the expression of genes encoding heat shock protein 70 (HSPA1A) and its cochaperones HSP-70-binding protein 1 (HSPBP1) and Tag7 (PGLYRP1) in human leukocytes were studied. Transcription activities of HSPA1A and PGLYRP1 genes increased immediately after medium-intensity exercise, while activity of HSPBP1 gene remained ...
Raichlen David A DA School of Anthropology, University of Arizona, Tucson, AZ 85721, USA. - - 2013
Endocannabinoids (eCB) are endogenous ligands for cannabinoid receptors that are densely expressed in brain networks responsible for reward. Recent work shows that exercise activates the eCB system in humans and other mammals, suggesting eCBs are partly responsible for the reported improvements in mood and affect following aerobic exercise in humans. ...
Feros Simon A - - 2012
Rowing requires strength, power, and strength-endurance for optimal performance. A rowing based warm-up could be enhanced by exploiting the postactivation potentiation (PAP) phenomenon, acutely enhancing power output at the beginning of a race where it's needed most. Minimal research has investigated the effects of PAP on events of longer duration ...
Crow Justin F - - 2012
Crow, JF, Buttifant, D, Kearny, SG, and Hrysomallis, C. Low load exercises targeting the gluteal muscle group acutely enhance explosive power output in elite athletes. J Strength Cond Res 26(X): 000-000, 2012-The purpose of this study was to investigate the acute effect of 3 warm-up protocols on peak power production ...
Gavin Timothy P - - 2012
Gavin, TP, Van Meter, JB, Brophy, PM, Dubis, GS, Potts, KN, and Hickner, RC. Comparison of a field-based test to estimate functional threshold power and power output at lactate threshold. J Strength Cond Res 25(X): 000-000, 2012-It has been proposed that field-based tests (FT) used to estimate functional threshold power ...
Galpin Andrew J - - 2012
Power is critical to muscle performance, specifically in athletic populations. Mitogen-activated protein kinase (MAPK) pathways (extracellular signal-regulated protein kinase (ERK 1/2), p38, and c-Jun NH(2)-terminal kinase (JNK)) are intracellular signal transduction mechanisms that partially regulate exercise-induced skeletal muscle alterations. These pathways are highly responsive to exercise, but their reaction to ...
Hardee Justin P - - 2012
The purpose of this study was to examine the effects of inter-repetition rest (IRR) on ratings of perceived exertion (RPE) in the power clean exercise in a multiple set protocol using peak power as an indication of fatigue. Ten resistance-trained males participated in four testing sessions which consisted of determination ...
Gundling Tom - - 2012
Since its inception in the early- to middle-nineteenth century, human origins studies have been informed by a variety of disciplines beyond physical anthropology and archaeology, most notably geology and biology. This study examines dramatic changes within human origins research that occurred in the mid-twentieth century largely as a consequence of ...
Brooks George A - - 2012
Human muscles, limbs and supporting ventilatory, cardiovascular, and metabolic systems are well adapted for walking, and there is reasonable transfer of efficiency of movement to bicycling. Our efficiency and economy of movement of bipedal walking (≈30%) are far superior to those of apes. This overall body efficiency during walking and ...
Suhr Frank - - 2012
Nitric oxide (NO) produced by nitric oxide synthase (NOS) in human red blood cells (RBCs) was shown to depend on shear stress and to exhibit important biological functions, such as inhibition of platelet activation. In the present study we hypothesized that exercise-induced shear stress stimulates RBC-NOS activation pathways, NO signaling, ...
Gregory Sara M SM Department of Preventive Cardiology, Hartford Hospital, 80 Seymour Street, Hartford, CT 06102, USA. - - 2012
Tor preventive measures are necessary to attenuate the increased economic and social burden of dementia. This review will focus on the potential for physical activity and exercise training to promote brain health and improve cognitive function via neurophysiological changes. We will review pertinent animal and human research examining the effects ...
Kostić Miloš D MD School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11120 Belgrade, Serbia. - - 2012
The assisted movement in humans with paresis of upper extremities is becoming popular for neurorehabilitation. We propose a novel method for trajectory selection and assistance control. This paper presents simulation of a planar two degrees of freedom robot that assists horizontal movement of the hand. The control assumes that during ...
Comfort Paul - - 2011
Although previous research has been performed in similar areas of study, the optimal load for the development of peak power during training remains controversial, and this has yet to be established in collegiate level athletes. The purpose of this study was to determine the optimal load to achieve peak power ...
Mujika Iñigo - - 2011
The warm-up procedure in traditional rowing usually involves continuous low-intensity rowing and short bouts of intense exercise, lasting about 60 min. PURPOSE: To compare the effects of a traditional and an experimental 30-min warm-up of lower intensity on indoor rowing time trial performance. METHODS: Fourteen highly-trained male rowers (age 25.9±5.3 ...
Glaister Mark - - 2011
The aims of this study were to evaluate perceptions of post-exercise recovery and to compare patterns of perceived recovery with those of several potential mediating physiological variables. 17 well-trained men (age: 22 ± 4 years; height: 1.83 ± 0.05 m; body mass: 78.9 ± 7.6 kg; and body fat: 11.1 ...
Pointon Monique - - 2011
This study examined the effects of cold water immersion (CWI) on recovery of neuromuscular function following simulated team-sport exercise in the heat. Ten male team-sport athletes performed two sessions of a 2 × 30-min intermittent-sprint exercise (ISE) in 32°C and 52% humidity, followed by a 20-min CWI intervention or passive recovery (CONT) ...
Parker Simpson Len - - 2011
A single 3-min all-out cycling test can be used to estimate the power asymptote (critical power, CP) and the curvature constant (W') of the power-duration relationship for severe-intensity exercise. It was hypothesized that when exercise immediately preceding the 3-min all-out test was performed <CP, the CP and W' parameters would ...
Alcaraz Pedro E - - 2011
Alcaraz, PE, Romero-Arenas, S, Vila, H, and Ferragut, C. Power-load curve in trained sprinters. A preliminary study. J Strength Cond Res 25(11): 3045-3050, 2011-The levels of lower-limb strength and power can distinguish between athletes of different levels in a number of sports, specifically in sprinting. In this sense, the purposes ...
Biscarini Andrea - - 2011
We derived the exact analytical expression of the instantaneous joint power in exercises with single-joint, variable-resistance, selectorized strength-training equipment, taking into account all the relevant geometric, kinematic and dynamic variables of both the movable equipment elements (resistance input lever, cam-pulley system, weight stack) and of the user's exercising limb. A ...
Almudehki Fuad - - 2011
To investigate the effect of hot exposure on the ability to perform intermittent cycling sprints. Ten male volunteers performed 35min of intermittent cycling comprising of 8 maximal 6-s sprints interspersed by 1min of passive recovery followed by 4min of constant-load pedaling (1Wkg(-1) of body weight) on a cycle ergometer in ...
Jandacka Daniel - - 2011
Jandacka, D and Uchytil, J. Optimal load maximizes the mean mechanical power output during upper extremity exercise in highly trained soccer players. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to determine the optimal load for the maximal power output during the acceleration phase of a ...
Kox Matthijs - - 2011
HRV (heart rate variability) analysis is a widely employed method to assess cardiac autonomic nervous system activity. Accurate HRV measurement is critical to its value as a diagnostic and prognostic tool. Different breathing patterns may affect HRV, but results obtained under static conditions are conflicting. HRV indices decrease considerably during ...
Jacobs R A - - 2011
Human endurance performance can be predicted from maximal oxygen consumption (Vo(2max)), lactate threshold, and exercise efficiency. These physiological parameters, however, are not wholly exclusive from one another, and their interplay is complex. Accordingly, we sought to identify more specific measurements explaining the range of performance among athletes. Out of 150 ...
Morin Jean-Benoit - - 2011
We investigated the changes in constant velocity spring-mass behavior after high intensity sprint fatigue in order to better interpret the results recently reported after ultra-long distance (ULD) exercises. Our hypothesis was that after repeated sprints (RS), subjects may likely experience losses of force such as after ULD, but the necessity ...
Barker Alan R - - 2011
This study examined whether critical power (CP) in adolescents: (1) provides a landmark for maximal steady-state exercise; and (2) can be determined using 'all-out' exercise. Nine active 14-15 year olds (6 females, 3 males) performed five cycling tests: (1) a ramp test to determine [Formula: see text]; (2) up to four ...
Chtourou Hamdi - - 2011
The present study was designed to evaluate time-of-day effects on electromyographic (EMG) activity changes during a short-term intense cycling exercise. In a randomized order, 22 male subjects were asked to perform a 30-s Wingate test against a constant braking load of 0.087 kg·kg(-1) body mass during two experimental sessions, which were ...
McBride Jeffrey M - - 2011
Abstract Nine males (age 24.7 ± 2.1 years, height 175.3 ± 5.5 cm, body mass 80.8 ± 7.2 kg, power clean 1-RM 97.1 ± 6.36 kg, squat 1-RM = 138.3 ± 20.9 kg) participated in this study. On day 1, the participants performed a one-repetition maximum (1-RM) in the power clean and the squat. On days 2, 3, and 4, participants performed the power clean, squat ...
Castle Paul - - 2011
Abstract The aim of this study was to determine the effect of 10 days of heat acclimation with and without pre-cooling on intermittent sprint exercise performance in the heat. Eight males completed three intermittent cycling sprint protocols before and after 10 days of heat acclimation. Before acclimation, one sprint protocol ...
Boecker Henning - - 2011
Physical exercise contributes to maintenance of physical health. There is growing evidence, both from animal work and from human epidemiological and longitudinal intervention studies, that physical exercise also impacts directly on the brain, mediating structural integrity and improving cognitive functioning. Modern neuroimaging approaches, in particular magnetic resonance imaging (MRI) based ...
Comstock Brett A - - 2011
Comstock, BA, Solomon-Hill, G, Flanagan, SD, Earp, JE, Luk, H-Y, Dobbins, KA, Dunn-Lewis, C, Fragala, MS, Ho, J-Y, Hatfield, DL, Vingren, JL, Denegar, CR, Volek, JS, Kupchak, BR, Maresh, CR, and Kraemer, WJ. Validity of the myotest® in measuring force and power production in the squat and bench press. J ...
Bouchard Claude C Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA. - - 2011
This article is devoted to the role of genetic variation and gene-exercise interactions in the biology of adaptation to exercise. There is evidence from genetic epidemiology research that DNA sequence differences contribute to human variation in physical activity level, cardiorespiratory fitness in the untrained state, cardiovascular and metabolic response to ...
Johnson Tyler M - - 2011
The 3-min all-out exercise test (3 MT) is purported to estimate critical power (CP), anaerobic work capacity (W'), and serve as an exercise mode for measuring maximum oxygen uptake (VO2max). Reliability analysis of the 3 MT has been confined to CP not W' and verification of 'true' VO2max was exclusive ...
Valli G - - 2011
The relationship between work rate (WR) and its tolerable duration (t(LIM)) has not been investigated at high altitude (HA). At HA (5050m) and at sea level (SL), six subjects therefore performed symptom-limited cycle-ergometry: an incremental test (IET) and three constant-WR tests (% of IET WR(max), HA and SL respectively: WR(1) ...
Requena Bernardo - - 2011
Requena, B, García, I, Requena, F, Sáez-Sáez de Villarreal, E, and Cronin, JB. Relationship between traditional and ballistic squat exercise with vertical jumping and maximal sprinting. J Strength Cond Res 25(x): 000-000, 2011-The purpose of this study was to quantify the magnitude of the relationship between vertical jumping and maximal ...
Lima M C S - - 2011
We analyzed the usefulness of a semi-tethered field running test (STR) and the relationships between indices of anaerobic power, anaerobic capacity and running performance in 9 trained male sprinters (22.2±2.9 yrs, 176±1 cm, 68.0±9.4 kg). STR involved an all out 120 m run attached to an apparatus that enabled power calculation from force and ...
Ostojic Sergej M - - 2011
The main aim of the study was to investigate whether different levels of aerobic power influence heart rate (HR) responses during the first minute of recovery following maximal exercise in athletes. Thirty-two young male soccer players were recruited for the study during the final week of their training prior the ...
Psycharakis Stelios G - - 2011
The effects of breathing on body roll have been previously investigated for the roll of the whole trunk only. The purposes of this study were: to calculate separately the shoulder roll (SR) and hip roll (HR) of swimmers during front crawl for non-breathing and preferred-side breathing conditions; to assess the ...
McMorrow R C N - - 2011
We describe a unique ambulatory closed circuit for delivering high fractions of inspired oxygen to an exercising user who does not require isolation from their environment. We describe the major components and their function and suggest potential applications for such a circuit. This circuit may benefit patients who are chronically ...
Jette Shannon - - 2011
In this article I explore the production of medical knowledge about exercise during pregnancy in the latter half of the 20th century, illustrating how debates about the safe limits of maternal exercise were rooted in longstanding anxieties surrounding the female reproductive body as well as epistemological questions concerning what counts ...
Telles Shirley - - 2011
Pre and post comparison after one minute of high frequency yoga breathing (HFYB) suggested that the HFYB modifies the autonomic status by increasing sympathetic modulation, but its effect during the practice was not assessed. Thirty-eight male volunteers with group average age ± S.D., 23.3 ± 4.4 years were each assessed ...
Toft Anders Dyhr - - 2010
The objective of this study was to use a novel and non-invasive model to explore whether: (1) exercise-induced increases in systemic levels of interleukin-6 (IL-6) and other cytokines can be ascribed to local production in working muscle; and (2) how acute release of retained blood from an exercised limb impacts ...
Knoblauch Mark A - - 2010
Circulating creatine kinase (CK) levels are often monitored as an indirect biomarker of muscle damage after resistive exercise. The purpose of the present investigation was to evaluate whether capillary whole-blood sampling, a simpler and less invasive method for obtaining a venous blood sample, would allow for a reliable measurement of ...
Taupin Philippe P Dublin City University, School of Biotechnology, Glasnevin, Dublin, 9, Ireland 353 01 700 5284 ; 353 01 700 5412 - - 2009
The application is in the field of bioimaging and adult neurogenesis. It aims at correlating the volume of cerebral blood (CBV) in the dentate gyrus (DG) of the human hippocampus, determined by magnetic resonance imaging (MRI), with neurogenesis in the brain of adult rodents. Adult mice were submitted to voluntary ...
Altenburger Markus J - - 2009
Limited information is available on the time-dependent or dosage-dependent cariostatic efficacy of highly concentrated fluoride compounds. This good clinical practice-conforming, double-blind, placebo-controlled, crossover in situ study tested the hypothesis that a 1.0% amine fluoride fluid is superior to a 0.5% amine fluoride fluid regarding fluoride retention and mineral change in ...
Whang L M - - 2009
This study evaluated nitrification performance and microbial ecology of AOB in a full-scale biological process, powder activated carbon treatment (PACT), and a pilot-scale biological process, moving bed biofilm reactor (MBBR), treating wastewater collected from a petrochemical industry park. The petrochemical influent wastewater characteristics showed a relative low carbon to nitrogen ...
Deetae Pawinee - - 2009
The growth and aroma contribution of Microbacterium foliorum, Proteus vulgaris and Psychrobacter sp., some common but rarely mentioned cheese bacteria, were investigated in a cheese model deacidified by Debaryomyces hansenii during the ripening process. Our results show that these bacteria had distinct growth and cheese flavour production patterns during the ...
Chen Caixia - - 2008
NC0604, a new analogue of bleomycin, was isolated from fermentation broth of Streptomyces verticillus var. pingyangensis n.var. The structure of NC0604 was elucidated by spectroscopic analyses. NC0604 had the same kernel structure as bleomycin, but a different terminal amine moiety determined as amidepropyl spermidine. NC0604 exhibited antibacterial activity against a ...
Wang Yuan-Shan - - 2008
The R-amidase production by a newly isolated strain of Delftia tsuruhatensis ZJB-05174 was optimized in this paper. Effects of factors such as carbon sources, nitrogen sources, and inducers on amidase production were investigated. The medium composition was optimized using central composite designs and response surface analysis. The optimal medium components ...
Galli Jacopo - - 2008
OBJECTIVES: We assess the association between the presence of biofilms and cilial damage in patients with chronic rhinosinusitis (CRS), describe the microorganisms associated with samples that exhibited cilial loss and biofilms, and demonstrate the absence of ciliary injury and biofilms in similarly prepared "normal" controls. METHODS: We examined samples of ...
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