Search Results
Results 501 - 550 of 2028
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Harrison Lara C V - - 2011
PURPOSE: To assess the ability of co-occurrence matrix-based texture parameters to detect exercise load-associated differences in MRI texture at the femoral neck cross-section. MATERIALS AND METHODS: A total of 91 top-level female athletes representing five differently loading sports and 20 referents participated in this cross-sectional study. Axial T1-weighted FLASH and ...
Gordon Dan - - 2012
The purpose of this study was to determine the effect of 6 min of prior-priming exercise on the incidence of plateau at (2max) . Twelve trained cyclists (age, 21 ± 3 years; height, 175·0 ± 8·0 cm; weight, 69·0 ± 10·4 kg; maximal oxygen uptake ((2max) ), 56·3 ± 6·9 ml kg(-1) min(-1) ) completed three incremental tests to volitional exhaustion, which were classified ...
Macklin K - - 2011
BACKGROUND: Previous research has found that ankle joint equinus can lead to foot pathologies. Calf stretching exercises are a common treatment prescription; however, no dynamic quantitative data on its effectiveness is available. OBJECTIVE: To investigate the effect of calf muscle stretching on ankle joint dorsiflexion and subsequent changes within dynamic ...
Patel Anant R C AR Academic Unit of Respiratory Medicine, University College London Medical School, London, NW3 2PF, England. - - 2012
Comorbid ischemic heart disease (IHD) is a common and important cause of morbidity and mortality in patients with COPD. The impact of IHD on COPD in terms of a patient's health status, exercise capacity, and symptoms is not well understood. We analyzed stable-state data of 386 patients from the London ...
Nådland I H - - 2011
OBJECTIVES: It has been shown that the leg muscle pump increases the immediate rise in arterial leg blood flow during upright exercise in healthy subjects. The present study is the first to investigate the muscle pump effect in exercise hyperaemia in patients with venous insufficiency, who should be lacking an ...
Diab Aliaa A - - 2011
Objective: To investigate the effect of forward head posture correction on pain and nerve root function in cases of cervical spondylotic radiculopathy. Design: A randomized controlled study with six months follow-up. Setting: University research laboratory. Subjects: Ninety-six patients with unilateral lower cervical spondylotic radiculopathy (C5-C6 and C6-C7) and craniovertebral angle ...
Schaser Allison J - - 2012
Age-associated changes in tongue musculature may contribute to dysphagia. One possible treatment is tongue exercise. Exercise induces synaptic plasticity by increasing neurotrophic factors in spinal cord and limb musculature. However, effects of exercise on neurotrophic factors in the cranial sensorimotor system are unknown. Our purpose was to examine the effects ...
Marshall Paul W M - - 2011
Objectives. To compare muscle recruitment, maximal force, and rate of force development changes following different resistance exercise protocols with a constant volume-load. Design. Within-subjects randomized crossover trial. Methods. Fourteen (n=14) resistance trained male participants completed three different resistance exercise protocols involving 20 squat repetitions, prescribed at 80% of 1-repetition-maximum. Protocol ...
Nakamoto Hiroki - - 2011
The present study examined whether the strength capability of knee extensor muscles is associated with global cognitive function, assessed by Mini-Mental State Examination (MMSE), in non-disabled elderly men. Isometric torques during maximal voluntary knee extension, plantar flexion, and elbow flexion and MMSE scores were determined in 39 non-disabled men aged ...
Wallaert Benoit - - 2011
Background: Patients with sarcoidosis frequently exhibit exertional dyspnea. Although the functional limitation might be related to ventilatory problems, some patients exhibited exertional dyspnea without significant abnormalities of pulmonary function tests (PFT). Therefore, the mechanisms responsible for exercise intolerance remain unclear. Objectives: The aim of this retrospective study was to determine ...
Hekler Eric B - - 2012
Utilitarian walking (e.g., walking for transport) and leisure walking (e.g., walking for health/recreation) are encouraged to promote health, yet few studies have explored specific preferences for these two forms of physical activity or factors that impact such preferences. A quasi-experimental crossover design was used to evaluate how training underactive midlife ...
Leotti Lauren A LA Rutgers University, Newark, NJ 07102, - - 2011
Research suggests that the exercise of control is desirable and adaptive, but the precise mechanisms underlying the affective value of control are not well understood. The study reported here characterized the affective experience of personal control by examining the neural substrates recruited when individuals anticipate the opportunity to make a ...
Fuentes Teresa - - 2011
To determine if there is a sex dimorphism in the skeletal muscle signaling response to sprint exercise, 17 men and ten women performed a 30-s Wingate test. Muscle biopsies were taken before, immediately after the exercise and at 30 and 120 min during the recovery period. Thr(172)-AMPKα, Ser(221)-ACCβ, Thy(705)-STAT3, Thr(202)/Thy(204)-ERK1/2 and ...
Manonai Jittima - - 2011
INTRODUCTION AND HYPOTHESIS: Colpexin Sphere was effective for advanced pelvic organ prolapse. The aim of this study was to assess the effect of Colpexin Sphere in women with pelvic organ prolapse (POP) stage I or II on pelvic floor muscle strength, quality of life, and POP stage. METHODS: Women were ...
Jensen C J - - 2011
BACKGROUND: Optimization of AV and VV delay programming has been shown to be essential for the success of cardiac resynchronization therapy (CRT). Acute hemodynamic improvement can be obtained by intracardiac electrocardiogram (IEGM)-based optimization. The aim of the present study was to evaluate whether this IEGM-based algorithm is comparable to the ...
Chaubet Vincent - - 2011
The aim of this work was to compare the effects of fatigue of the quadriceps femoris after fatiguing voluntary contractions (VOL) and fatiguing neuromuscular electrical stimulation (ES) on bipedal postural control. Nineteen active male subjects (22.2 ± 1.7 years) completed these two fatiguing exercises. Isometric maximal voluntary contraction (MVC) and postural control were ...
Tonini Julia - - 2011
Reduced exercise tolerance has been reported in obstructive sleep apnea syndrome (OSAS) patients, although the associated hypertension, obesity and/or metabolic disorder may underlie this reduction. Therefore, we evaluated the effects of chronic intermittent hypoxia (CIH) in 12 healthy subjects on exercise capacity, cardio-respiratory responses, and substrate oxidation during maximal and ...
Frans F A - - 2012
The aim was to summarize the results of all randomized clinical trials (RCTs) comparing percutaneous transluminal angioplasty (PTA) with (supervised) exercise therapy ((S)ET) in patients with intermittent claudication (IC) to obtain the best estimates of their relative effectiveness. A systematic review was performed of relevant RCTs identified from the MEDLINE, ...
Onorati Paolo - - 2011
Incremental cardio-pulmonary exercise test with gas exchange measurement is the gold standard for the identification of the ventilatory compensation point (VCP). It has previously been demonstrated that the change in the slope of increment of minute ventilation over heart rate (ΔV'E/ΔHR) can be utilized alternatively to the ventilatory equivalent for ...
Marques Elisa A EA Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal. - - 2012
The purpose of the study was to assess the effects of exercise interventions with different impact loading characteristics on lumbar spine (LS) and femoral neck (FN) bone mineral density (BMD) in older adults. We searched electronic databases and hand searched selected journals up to February 2011 for randomized controlled trials ...
Morrison Douglas J - - 2011
The utilisation of carbohydrate sources under exercise conditions is of considerable importance in performance sports. Incorporation of optimal profiles of macronutrients can improve endurance performance in athletes. However, gaining an understanding of the metabolic partitioning under sustained exercise can be problematical and isotope labelling approaches can help quantify substrate utilisation. ...
Kingsley J D - - 2011
The vascular responses to acute resistance exercise and resistance exercise training (RET) in overweight women are unclear. Therefore, the purpose of this study was to examine the vasodilatory and wave reflection responses to acute resistance exercise before and after RET. In all, 24 overweight/obese (28.5±0.6 kg m(-2)) women (44±1 years of age) ...
Parkatti Terttu - - 2011
This study examined the effects of an instructed structured Nordic Walking (NW) exercise programme on the functional capacity of older sedentary people. Volunteers were randomly assigned to a NW group (68.2±3.8 yrs old) or control group (69.9±3.0 yrs old). Prior to and at the end of the nine-week intervention functional ...
Martin Antonia M - - 2011
PURPOSE: Research addressing methods to sustain long-term adherence to physical activity among older adults is needed. This study investigated the motivations and supports deemed necessary to adhere to a community-based cardiac rehabilitation (CBCR) programme by individuals with established Coronary Heart Disease (CHD). METHODS: Twenty-four long-term adherers (15 men, 9 women; ...
Tuttle Lori J - - 2012
The exercise guidelines for people with diabetes mellitus and peripheral neuropathy (DM+PN) have recently changed to allow moderate-intensity weight-bearing exercise, but there are few reports in the literature describing appropriate weight-bearing exercise for those with DM+PN. This case report describes a successful and safe progressive exercise program for an individual ...
Koch Lauren Gerard LG Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI 48109-2200, USA. - - 2011
Low aerobic exercise capacity is a powerful predictor of premature morbidity and mortality for healthy adults as well as those with cardiovascular disease. For aged populations, poor performance on treadmill or extended walking tests indicates closer proximity to future health declines. Together, these findings suggest a fundamental connection between aerobic ...
Marques-Neto Silvio R - - 2011
Many studies have used the heart rate deflection points (HRDP) during incremental exercise tests, because of their strong correlation with the anaerobic threshold (AT). The aim of this study was to evaluate the profile of the heart rate deflection points identified by a computerized method and compare it to ventilatory ...
Bloomer Richard J - - 2011
Nitric oxide dietary supplements are popular within the sport community. Our recent work involving oral intake of 2 nitrooxy ethyl 2 amino 3 methylbutanoate demonstrated a ∼6.7% increase in circulating nitrate/nitrite. However, no measures of exercise performance were obtained. The present study used a topical form of this molecule to ...
Cowell John F - - 2011
The purpose of this study was to develop a greater understanding of Supercross BMX via notational analysis (NA). Union Cycliste Internationale (UCI) categorised Elite riders (n=26) were the subjects of the analysis, which occurred during the UCI BMX World Championships. Video footage was captured and analysed using Quicktime™ and VideoMotion© ...
Mourot L - - 2011
Background: The first (VT1) and second (VT2) ventilatory thresholds are landmarks to tailor exercise rehabilitation in coronary artery disease (CAD) or chronic heart failure (CHF). Methods allowing VT1 and VT2 determination based on heart rate variability (HRV) have been proposed but not yet evaluated in these patients. Design: To determine ...
Nourshahi Maryam - - 2011
BACKGROUND: The effect of leptin as stimulant angiogenic factor has been studied. But the association of leptin levels and exercise-induced angiogenesis has not been studied. Accordingly, the researchers investigated whether there were any differences in circulating serum VEGF, MMP-2 and MMP-9 among high and low resting leptin individuals at rest ...
Courneya Kerry S - - 2011
BACKGROUND: Few studies have examined the predictors of adherence separately for supervised and unsupervised exercise or in postmenopausal women over an extended time period. Here, we report the predictors of exercise adherence in the Alberta Physical Activity and Breast Cancer Prevention (ALPHA) Trial. METHODS: The ALPHA trial randomized 160 postmenopausal ...
Chan-Dewar F - - 2011
Cardiac electrical-mechanical delay (cEMD), left ventricular (LV) function, and cardiac troponin I (cTnI) were assessed after 40 km cycle time trials completed at high (HIGH) and moderate (MOD) intensities in 12 cyclists. Echocardiograms and blood samples were collected before, 10, and 60 min after cycling. cEMD as assessed by time from QRS ...
Lin Yu-Hua - - 2011
BACKGROUND:: Sexual dysfunction is common after radical prostatectomy (RP). Although pelvic-floor muscle exercise (PFME) has been recommended for sexual dysfunction, the optimal time for starting exercises after this surgery and the effects of exercise still need to be examined. OBJECTIVES:: The present study was intended to explore the prevalence of ...
Katzel Leslie I - - 2012
Changes in the biomechanics of gait may alter the energy requirements of walking in Parkinson's Disease (PD). This study investigated economy of gait during submaximal treadmill walking in 79 subjects with mild to moderate PD and the relationship between gait economy and 6-minute walk distance (6 MW). Oxygen consumption (VO(2)) at ...
Yu Fang - - 2011
Aerobic exercise is a promising behavioral therapy for Alzheimer's disease (AD), yet few studies have investigated the effect of aerobic exercise on cognition in AD. The purpose of this pilot study was to examine the effect of 6-month aerobic exercise on the change in executive function, global cognition, quality of ...
Sousa A C - - 2011
Studies that aim to characterize oxygen uptake kinetics in efforts above maximal oxygen consumption intensity are scarce. Our aim was to analyze the oxygen kinetics in a maximal 200-m front crawl, all measurements being conducted in swimming pool conditions. 10 high-level male swimmers performed a maximal 200-m bout and oxygen ...
Guenette Jordan A - - 2011
RATIONALE: Combination therapy with corticosteroid and long-acting β(2)-agonists (LABA) in a single inhaler is associated with superior effects on airway function and exercise performance in COPD compared with LABA monotherapy. The physiological effects of adding inhaled corticosteroid monotherapy to maintenance bronchodilator therapy (long-acting anticholinergics and LABA singly or in combination) ...
Vanhatalo Anni - - 2011
Exercise in hypoxia is associated with reduced muscle oxidative function and impaired exercise tolerance. We hypothesised that dietary nitrate supplementation (which increases plasma [nitrite] and thus NO bioavailability) would ameliorate the adverse effects of hypoxia on muscle metabolism and oxidative function. In a double-blind, randomised crossover study, nine healthy subjects ...
McGowan Erin L - - 2011
BACKGROUND: Regular physical activity (PA) provides health benefits; however, at least 60% of the population fails to engage in the recommended amount of PA required to produce these health benefits. PURPOSE: The primary purpose of the study was to examine over a 12-week structured exercise program the effect of a ...
Allen Jeralyn - - 2011
In older adults, regular exercise provides numerous health benefits that include improvements in blood pressure, coronary artery disease,diabetes, lipid profile, osteoarthritis, osteoporosis, mood,neurocognitive function, and overall morbidity and mortality. This article discusses the benefits of exercise in the elderly and how physicians can help such patients overcome barriers to exercise ...
Bucioli Sérvio A - - 2011
Previous studies demonstrated that exercise stress increase oxidative stress in rats. However, antioxidant supplement therapy effects on reactive oxygen substances are conflicting. We evaluated the effects of carnitine on renal non-enzymatic antioxidants in young rats submitted to exhaustive exercise stress. Wistar rats were divided into three groups: 1) control group ...
Kawczyński Adam - - 2011
The aim of this study was to evaluate the changes in pressure pain sensitivity maps in untrained subjects over two subsequent sessions of eccentric exercise (ECC) expected to result in (i) delayed onset muscle soreness (DOMS) and (ii) adaptation/recovery respectively. Eleven healthy male subjects participated in this study. Pain pressure ...
Nelson Gail A - - 2011
The use of non-traditional exercise devices such as the Ab Lounge™ has been promoted as being as effective as the traditional abdominal crunch in strengthening the abdominal musculature. Evidence for this is lacking, however. The purpose of this study was to compare the degree of activation of the upper and ...
Sidiropoulou Maria P - - 2011
Different sports and environmental conditions are known to influence Exercise Induced Asthma (EIA). The aim of this study was to establish if there were differences in the incidence of exercise induced bronchospasm between athletes in different sports, which take place under different environmental conditions such as open places, closed courses ...
Horwich Tamara B - - 2011
Exercise training (ET) in patients with heart failure (HF), as demonstrated in the Heart Failure: A Controlled Trial Investigating Outcomes of Exercise TraiNing (HF-ACTION), was associated with improved exercise tolerance and health status and a trend toward reduced mortality or hospitalization. The present analysis of the HF-ACTION cohort examined the ...
Comeau Matthew J - - 2011
Comeau, MJ, Lawson, PM, Graves, MM, Church, JB, and Adams II, TM. Visualization of the passive sink phenomenon in nonexercising muscle using 2 sampling sites: consequences for assessment and training. J Strength Cond Res 25(X): 000-000, 2011-Sampling sites for determining lactate concentration [La] have been debated for years. To date, ...
Frank Miriam K - - 2011
The purpose of this study was to evaluate the profile of serum iron in spontaneously hypertensive rats after an aerobic physical exercise. To accomplish this, 12 normotensive Wistar rats and 12 spontaneously hypertensive rats were distributed into "physical exercise" and "no physical exercise" groups. The animals in the physical exercise ...
da Silva Cristiano D - - 2011
da Silva, CD, Impellizzeri, FM, Natali, AJ, de Lima, JRP, Bara-Filho, MG, Silami-Garçia, E, and Marins, JCB. Exercise intensity and technical demands of small-sided games in young Brazilian soccer players: effect of number of players, maturation, and reliability. J Strength Cond Res 25(X): 000-000, 2011-The aims of this study were ...
Rothwell Sean P - - 2011
Objective: The objective of the present study was to determine the prevalence of exercise-associated hyponatraemia in hikers/trekkers along the Kokoda Trail. Methods: This was a cross-sectional study of 191 trekkers on the Kokoda Trail, Papua New Guinea. Blood was taken and analysed immediately using point-of-care technology 2 days walk from each ...
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