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Results 251 - 300 of 2028
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Hody S - - 2011
Unaccustomed eccentric exercise may cause skeletal muscle damage with an increase in plasma creatine kinase (CK) activity. Although the wide variability among individuals in CK response to standardized lengthening contractions has been well described, the reasons underlying this phenomenon have not yet been understood. Therefore, this study investigated a possible ...
Gosselin Luc E - - 2011
Although high intensity sprint interval training employing the Wingate protocol results in significant physiological adaptations, it is conducted at supramaximal intensity and is potentially unsafe for sedentary middle-aged adults. We therefore evaluated the metabolic and cardiovascular response in healthy young individuals performing four high intensity (∼90% VO2max) aerobic interval training ...
Wasse Lucy K - - 2012
The reason for high altitude anorexia is unclear but could involve alterations in the appetite hormones ghrelin and peptide YY (PYY). This study examined the effect of resting and exercising in hypoxia (12.7% O(2); ∼4,000 m) on appetite, energy intake, and plasma concentrations of acylated ghrelin and PYY. Ten healthy ...
Jones Lee W - - 2012
To investigate the prognostic importance of functional capacity and exercise behavior in patients with metastatic non-small cell lung cancer (NSCLC). Using a prospective design, 118 consecutive participants with histologically confirmed metastatic (inoperable) NSCLC and Eastern Cooperative Oncology group (ECOG) 0-3 completed a six-minute walk test to assess functional capacity and ...
Gloeckl Rainer - - 2012
To date endurance and strength training are established and evidence-based exercise methods in patients with chronic obstructive pulmonary disease (COPD). There is an unmet need for further research in new and complementary exercise modalities. Additional whole body vibration training during pulmonary rehabilitation may be such a new approach that has ...
Burd Nicholas A - - 2012
We aimed to determine if the time that muscle is under loaded tension during low intensity resistance exercise affects the synthesis of specific muscle protein fractions or phosphorylation of anabolic signalling proteins. Eight men (24 ± 1 years (sem), BMI = 26.5 ± 1.0 kg m(-2)) performed three sets of ...
England Ruth R Department of Palliative Medicine, Nottingham University Hospitals NHS Trust, Nottingham NG5 1PB, - - 2012
Patients with incurable thoracic cancer often complain of a reduced ability to exercise, but the cause of this has been little studied. Thus, we have explored how various physiological and psychological factors relate to exercise performance in this group. Inspiratory muscle strength, peripheral muscle power, lung function and mastery over ...
Smith A E - - 2011
The purpose of this study was to evaluate the effects of β-alanine supplementation on markers of oxidative stress. Twenty-four women (age: 21.7 ± 2.1 years; VO(2)max: 2.6 ± 0.3 l min(-1)) were randomly assigned, in a double-blind fashion, to a β-alanine (BA, 2 × 800 mg tablets, 3× daily; CarnoSyn(®); n = 13) or placebo (PL, 2 × 800 mg maltodextrin tablets, 3× daily; n = 11) ...
Black Christopher D - - 2011
Exercise-induced muscle damage (EIMD) has been shown to reduce force production and result in delayed-onset soreness/pain (DOMS) in the damaged muscle(s). Cycling in the presence of EIMD reduces peak power output and time-trial performance. However, its effect on peak aerobic capacity has not been widely studied. The purpose of this ...
Chan R - - 2011
The number of eccentric contractions is a factor affecting the magnitude of muscle damage; however, it is unknown whether set-repetition configurations for the same total number of eccentric contractions affect the muscle damage. The present study investigated whether different set-repetition configurations would result in different force output during eccentric exercise ...
Vergari Claudio - - 2011
Ultrasonography is an established technique to follow up injured tendons, although the lesions' echogenicity tends to become normal before the tendon is ready to sustain the stresses imposed by exercise. Normalized axial speed of sound (SOS) has been found to correlate with an injured tendon's stiffness; therefore, the purpose of this ...
Zhao Ying - - 2011
OBJECTIVE: Despite recovery of left ventricular (LV) function and morphology after aortic valve replacement (AVR) for aortic stenosis (AS), its relationship with exercise capacity remains unknown. Twenty-one AVR patients (age 61 ± 12 years, 14 male) with normal ejection fraction (EF, 64 ± 7%) and 21 age- and sex-matched controls ...
Gartman Eric J - - 2011
BACKGROUND: Pulmonary hypertension (PH) is a comorbidity associated with increased mortality in chronic obstructive pulmonary disease (COPD) patients. It is not known which clinical markers are predictive of PH in COPD. The goal of this study was to develop a clinical tool to identify patients who should be sent for ...
Allouh Mohammed Z - - 2011
Ferula hermonis Boiss. is an aphrodisiac plant that grows in the Mediterranean region. It has been reported that treatment with acetonic extract from the root of this plant acutely increases serum testosterone in the rat. This study investigated the effects of F. hermonis extract alone or combined with exercise on ...
Vila-Chã C C Polytechnic Institute of Bragança, Bragança, - - 2012
This study investigates the effects of eccentric exercise and delayed onset muscle soreness (DOMS) of the quadriceps on agonist-antagonist activity during a range of motor tasks. Ten healthy volunteers (age, mean ± SD, 24.9 ± 3.2 years) performed maximum voluntary contractions (MVC) and explosive isometric contractions of the knee extensors followed by isometric contractions at ...
Steinhilber Benjamin - - 2011
The feasibility and efficacy of an additional progressive home-based strengthening exercise program (PHSEP) on subjects that already attended supervised institutional exercise therapy was investigated. Thirty-six hip patients with hip osteoarthritis (OA) and/or total hip replacement in at least one hip joint were randomly assigned to an intervention group (IG) or ...
Johnston R J - - 2011
This study examined the relationship between coaches' perception of match performance and movement demands in Australian Football. Movement demands were collected from 21 professional players over 12 matches during one Australian Football League season, with 69 player files collected. Additionally, match events relative to playing time and distance covered, along ...
Wright Kim - - 2011
BACKGROUND: Little is known about the therapeutic or iatrogenic effects of exercise in individuals with Bipolar Disorder, despite its potential to benefit physical and mental health. Consequently the aim of the current study was to gather data on experiences of the relationship between exercise and Bipolar Disorder from people with ...
Narang Nikhil - - 2011
The Fick principle (cardiac output [Q(c)] = oxygen uptake [Vo(2)]/arteriovenous oxygen difference) can be used to calculate Q(c), with VO(2) frequently estimated by derived equations. To compare the accuracy of measured versus estimated VO(2), data were analyzed from 2 studies in which VO(2) at rest was measured using the Douglas ...
Thompson B J - - 2011
The purpose of the present study was to examine the effects of an acute bout of eccentric exercise on maximal isokinetic concentric peak torque (PT) of the leg flexors and extensors and the hamstrings-to-quadriceps (H:Q) strength ratio. Sixteen male (mean±SD: age=20.9±2 years; stature=177.0±4.4 cm; mass=76.8±10.0 kg) volunteers performed maximal, concentric isokinetic leg extension ...
Kozey-Keadle Sarah - - 2012
This study examined the feasibility of reducing free-living sedentary time (ST) and the convergent validity of various tools to measure ST. Twenty overweight/obese participants wore the activPAL (AP) (criterion measure) and ActiGraph (AG; 100 and 150 count/minute cut-points) for a 7-day baseline period. Next, they received a simple intervention targeting ...
Hill David W - - 2011
Pedalling cadence influences the oxygen demand and the tolerable duration of severe intensity cycle ergometer exercise. Both of these variables are factors in the calculation of maximal accumulated oxygen deficit (MAOD), which is a widely accepted measure of anaerobic capacity. We were therefore interested in determining whether pedalling cadence affected ...
Kano Hiroto - - 2011
Background: The aim of the present study was to compare the end-tidal O(2) pressure (PETO(2)) to end-tidal CO(2) pressure (PETCO(2)) in cardiac patients during rest and during 2 states of exercise: at anaerobic threshold (AT) and at peak. The purpose was to see which metabolic state, PETO(2) or PETCO(2), best ...
Magnan Renee E - - 2011
A transdisciplinary approach incorporating biological, psychological, behavioral, and genetic factors was taken to better identify proposed moderators of the effectiveness of an intervention to increase physical activity. This paper illustrates how theory-based individual difference variables can be integrated into a complex randomized controlled trial. The transdisciplinary framework guiding the selection ...
Stevens Daniel - - 2011
Muscle metabolism is increased following exercise in healthy individuals, affecting exercise metabolism during subsequent physical work. We hypothesized that following heavy-intensity exercise (HIE), disease factors in children with cystic fibrosis (CF) would further exacerbate exercise metabolism and perceived exertion during subsequent exercise. Nineteen children with CF (age, 13.4 ± 3.1 years; 10 ...
Murphy Timothy P - - 2012
Claudication is a common and disabling symptom of peripheral artery disease that can be treated with medication, supervised exercise (SE), or stent revascularization (ST). We randomly assigned 111 patients with aortoiliac peripheral artery disease to receive 1 of 3 treatments: optimal medical care (OMC), OMC plus SE, or OMC plus ...
Slade Susan Carolyn SC Department of Physiotherapy, Monash University, Frankston, Australia. - - 2012
Structured, regular exercise is recommended to improve health outcomes. Exercise takes many forms and varies in type, intensity, duration and frequency. The authors used the example of exercise for chronic health conditions to examine how exercise programmes are described and summarised in systematic reviews. Two independent reviewers conducted a review ...
Obayashi Hiromune - - 2011
CONTEXT: Respiratory muscle exercises are used not only in the rehabilitation of respiratory disease patients but also in endurance training for athletes. Respiration involves the back and abdominal muscles. These muscles are one of the elements responsible for posture control, which is integral to injury prevention and physical performance. However, ...
Murphy Kathleen M - - 2011
OBJECTIVE: To investigate the impact of a video-based educational resource on home exercise compliance among caregivers of children with neonatal brachial plexus palsy (NBPP). DESIGN: Retrospective analysis of self-reported caregiver home exercise habits and resultant shoulder range of motion (ROM) and biceps power in patients with NBPP. SETTING: Home-based exercise ...
Guthrie Rebecca J - - 2011
CONTEXT: Individuals with low back pain (LBP) are thought to benefit from interventions which improve motor control of the lumbopelvic region. It is unknown if therapeutic exercise can acutely facilitate activation of lateral abdominal musculature. OBJECTIVE: To investigate the ability of 2 types of bridging exercise progressions to facilitate lateral ...
Ranadive S M - - 2011
Acute aerobic exercise decreases arterial stiffness based on the intensity of the exercise and the arterial segment studied. Arm exercise may differentially affect arterial stiffness compared to leg exercise but this has not been studied. We hypothesized that maximal aerobic exercise would reduce local peripheral pulse wave velocity i.e. femoral-dorsalis ...
Al-Shayji Iqbal A R - - 2012
Prior moderate exercise reduces plasma triglyceride (TG)-rich lipoprotein concentrations, mainly in the large very low-density lipoprotein (VLDL₁) fraction, but the mechanism responsible is unclear. We investigated the effects of brisk walking on TG-rich lipoprotein kinetics using a novel method. Twelve overweight/obese middle-aged men underwent two kinetic studies, involving infusion of ...
Lee Jeong-Ah - - 2011
OBJECTIVE:: Regular and continuous yoga exercise is one of the most important nonpharmacological methods of improving serum lipid concentrations, adipose tissue, and metabolic syndrome factors. The purpose of this study was to analyze the effects of yoga exercise on serum adiponectin and metabolic syndrome factors in obese postmenopausal Korean women. ...
Claerbout Marieke - - 2011
Background: Exercise therapy in persons with multiple sclerosis (MS) is effective for improving muscle strength and functional mobility. Objective: To investigate, in MS patients attending an in-patient rehabilitation program, the additional effects of a 3-week exercise program, performed on a whole body vibration platform, on muscle strength and functionality. Methods: ...
Montenegro Rafael A - - 2011
This study investigated whether transcranial direct current stimulation (tDCS) on dorsolateral prefrontal cortex (DLPFC) isolated or combined with aerobic exercise influenced the desire to eat, hunger, and satiety in overweight subjects. Nine volunteers underwent anodal or sham tDCS (2mA; 20min) over DLPFC and isocaloric exercise bouts (70%VO(2)R; ∼200kcal). The appetite ...
Kuroiwa Yasuyoshi - - 2011
OBJECTIVE: The aim is to compare and evaluate the agreement of quantification of left ventricular functional parameters obtained by two different methods, (99m)Tc-tetrofosmin gated myocardial perfusion SPECT (MPS) and cardiac magnetic resonance imaging (CMR). METHODS: Ten healthy male volunteers participated. Gated MPS data were acquired using 32 frames, which were ...
Ahmadiasl Nasser - - 2011
Increase in heart metabolism during severe exercise facilitates production of ROS and result in oxidative stress. Due to shortage of information, the effect of chronic strength exercise on oxidative stress and contractile function of the heart was assessed to explore the threshold for oxidative stress in this kind of exercise ...
Nicastro Humberto - - 2011
OBJECTIVE: We aimed to evaluate the effects of resistance exercise (RE) and leucine (LEU) supplementation on dexamethasone (DEXA)-induced muscle atrophy and insulin resistance. METHODS: Male Wistar rats were randomly divided into DEXA (DEX), DEXA + RE (DEX-RE), DEXA + LEU (DEX-LEU), and DEXA + RE + LEU (DEX-RE-LEU) groups. Each ...
Crisp Nicole A - - 2011
To compare the assessment of Fat(max) using a single graded exercise test with 3 min stages against 30 min prolonged exercise bouts in overweight boys. Ten overweight boys (8-12 years) attended the laboratory on seven separate occasions. On the first visit, body anthropometrics and peak aerobic capacity ([Formula: see text]O(2peak)) were assessed. Following ...
Jeong Sung-Moon - - 2011
This study tested the hypothesis that reduction in cerebral blood flow (CBF) during orthostatic stress after bed rest can be ameliorated with volume loading, exercise or both. Transcranial Doppler was used to measure changes in CBF velocity during lower body negative pressure (LBNP) before and after an 18 day bed ...
Lovell Dale I - - 2011
Lovell, DI, Mason, DG, Delphinus, EM, and McLellan, CP. Do compression garments enhance the active recovery process after high-intensity running? J Strength Cond Res 25(12): 3264-3268, 2011-This study examined the effect of wearing waist-to-ankle compression garments (CGs) on active recovery after moderate- and high-intensity submaximal treadmill running. Twenty-five male semiprofessional ...
Ostman Bengt - - 2011
OBJECTIVE: The theoretically beneficial effects of coenzyme Q10 (Q10) on exercise-related oxidative stress and physical capacity have not been confirmed to our knowledge by interventional supplementation studies. Our aim was to investigate further whether Q10 supplementation at a dose recommended by manufacturers influences these factors. METHODS: Using a randomized, double-blind, ...
Meldrum D R - - 2011
Oxidative stress and inflammation, which disrupt nitric oxide (NO) production directly or by causing resistance to insulin, are central determinants of vascular diseases including ED. Decreased vascular NO has been linked to abdominal obesity, smoking and high intakes of fat and sugar, which all cause oxidative stress. Men with ED ...
Crewther Blair T - - 2011
Crewther, BT, Kilduff, LP, Cook, CJ, Middleton, MK, Bunce, PJ, and Yang, G-Z. The acute potentiating effects of back squats on athlete performance. J Strength Cond Res 25(X): 000-000, 2011-This study examined the acute potentiating effects of back squats on athlete performance with a specific focus on movement specificity and ...
Barbosa Luis F - - 2011
Barbosa, LF, de Souza, MR, Corrêa Caritá, RA, Caputo, F, Denadai, BS, and Greco, CC. Maximal lactate steady-state independent of recovery period during intermittent protocol. J Strength Cond Res 25(X): 000-000, 2010-The purpose of this study was to analyze the effect of the measurement time for blood lactate concentration ([La]) ...
Rahimi Rahman - - 2011
Rahimi, R. Creatine supplementation decreases oxidative DNA damage and lipid peroxidation induced by a single bout of resistance exercise. J Strength Cond Res 25(X): 000-000, 2011-Creatine (Cr), or methyl guanidine-acetic acid, can be either ingested from exogenous sources, such as fish or meat, or produced endogenously by the body, primarily ...
Ebben William P - - 2011
Ebben, WP, Fauth, ML, Garceau, LR, and Petushek, EJ. Kinetic quantification of plyometric exercise intensity. J Strength Cond Res 25(12): 3288-3298, 2011-Quantification of plyometric exercise intensity is necessary to understand the characteristics of these exercises and the proper progression of this mode of exercise. The purpose of this study was ...
Trepanowski John F - - 2011
Trepanowski, JF, Farney, TM, McCarthy, CG, Schilling, BK, Craig, SA, and Bloomer, RJ. The effects of chronic betaine supplementation on exercise performance, skeletal muscle oxygen saturation, and associated biochemical parameters in resistance trained men. J Strength Cond Res 25(X): 000-000, 2011-We examined the effects of chronic betaine supplementation on exercise ...
Douris Peter C - - 2011
Douris, PC, Handrakis, JP, Gendy, J, Salama, M, Kwon, D, Brooks, R, Salama, N, and Southard, V. Fatiguing upper body aerobic exercise impairs balance. J Strength Cond Res 25(X): 000-000, 2011-There are many studies that have examined the effects of selectively fatiguing lower extremity muscle groups with various protocols, and ...
Rønnestad Bent R - - 2011
Rønnestad, BR and Ellefsen, S. The effects of adding different whole-body vibration frequencies to preconditioning exercise on subsequent sprint performance. J Strength Cond Res 25(X): 000-000, 2011-The phenomenon postactivation potentiation can possibly be used to acutely improve sprint performance. The purpose of this study was to investigate the effect of ...
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