Search Results
Results 201 - 250 of 1119
< 1 2 3 4 5 6 7 8 9 10 >
Demura Shinichi - - 2011
L: -Ornithine plays an important role in ammonia metabolism via the urea cycle. This study aimed to examine the effect of L: -ornithine hydrochloride ingestion on ammonia metabolism and performance after intermittent maximal anaerobic cycle ergometer exercise. Ten healthy young adults (age, 23.8 ± 3.9 year; height, 172.3 ± 5.5 cm; body mass, 67.7 ± 6.1 kg) with regular ...
Mathes Wendy Foulds WF Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA. - - 2011
The potential utility of the Collaborative Cross (CC) mouse resource was evaluated to better understand complex traits related to energy balance. A primary focus was to examine if genetic diversity in emerging CC lines (pre-CC) would translate into equivalent phenotypic diversity. Second, we mapped quantitative trait loci (QTL) for 15 ...
Belavy D L - - 2011
Background and Aim. There is limited data on the effects of inactivity (prolonged bed-rest) on parameters of endocrine and metabolic function; we therefore aimed to examine changes in these systems during and after prolonged (56-day) bed-rest in male adults. Subjects and Methods. 20 healthy male subjects underwent 8 weeks of ...
Tam Nicholas - - 2011
OBJECTIVE:: To measure changes in body mass (BM), total body water (TBW), fluid intake, and blood biochemistry in athletes during 21.1-km and 56-km foot races. DESIGN:: Observational study. SETTING:: 2009 Two Oceans Marathon, South Africa. PARTICIPANTS:: Twenty-one (21.1 km) and 12 (56 km) participants were advised to drink according to ...
Knechtle Beat - - 2011
OBJECTIVE:: The prevalence of exercise-associated hyponatremia (EAH) has mainly been investigated in marathoners and Ironman triathletes. The aim of this study was to investigate the prevalence of EAH in male ultraendurance athletes in other disciplines, such as ultraswimming, ultracycling, and ultramarathon running. DESIGN:: Observational field study. SETTING:: "Marathon Swim" in ...
Helge Jørn W - - 2011
Exercising muscle release IL-6 but the mechanisms controlling this process are poorly understood. This study was performed to test the hypothesis that the IL-6 release is different from arm and leg muscle during whole body exercise due to differences in muscle metabolism. Sixteen subjects (10 males, 6 females, with body ...
Birzniece Vita - - 2011
There has been limited research and evidence that GH enhances physical performance in healthy adults or in trained athletes. Even so, human growth hormone (GH) is widely abused by athletes. In healthy adults, GH increases lean body mass, although it is possible that fluid retention contributes to this effect. The ...
Rawson Eric S - - 2011
The ingestion of the dietary supplement creatine (about 20 g/day for 5 days or about 2 g/day for 30 days) results in increased skeletal muscle creatine and phosphocreatine. Subsequently, the performance of high-intensity exercise tasks, which rely heavily on the creatine-phosphocreatine energy system, is enhanced. The well documented benefits of creatine supplementation in young ...
Wearing Scott C - - 2011
Although conditioning is routinely used in mechanical tests of tendon in vitro, previous in vivo research evaluating the influence of body anthropometry on Achilles tendon thickness has not considered its potential effects on tendon structure. This study evaluated the relationship between Achilles tendon thickness and body anthropometry in healthy adults ...
Hayashi Keiji - - 2011
We examined the degree to which ventilatory sensitivity to rising body temperature (the slope of the regression line relating ventilation and body temperature) is altered by restoration of arterial PCO(2) to the eucapnic level during prolonged exercise in the heat. Thirteen subjects exercised for ~60 min on a cycle ergometer ...
Vianna Marcus Vinicius Accetta - - 2012
Because physical exercise is an efficient means to improve maximum consumption of oxygen (VO(2max)) and reduce body fat, the objective of this work was to evaluate the effect of 4 months of a guided physical activity program on BMI, BP and estimated VO(2max) of older participants of the FHP. The ...
Astorino Todd A - - 2011
Astorino, TA, Martin, BJ, Schachtsiek, L, Wong, K, and Ng, K. Minimal effect of acute caffeine ingestion on intense resistance training performance. J Strength Cond Res 25(X): 000-000, 2011-The primary aim of the study was to determine the efficacy of acute caffeine intake to enhance intense resistance training performance. Fourteen ...
Fan Jue-Ting - - 2011
ABSTRACTBackground: This study aimed to test the effects of yoga exercises on the physical and mental health of elderly people with dementia living in long-term care facilities.Methods: A quasi-experimental, pretest-post-test design was used. A convenience sample of 68 residents in long-term care facilities in southern Taiwan, aged 60 years and ...
Cook Brian J - - 2011
OBJECTIVE: Although eating disorder (ED) symptoms result in reduced quality of life (QOL), research is needed to examine variables that influence this relationship. The purpose of our study was to conceptually examine the relationship among ED-specific QOL, ED symptoms, and exercise behavior. METHOD: Female university students (N = 387) completed ED-specific QOL, ...
Tsiachris Dimitris - - 2011
Background: Our aim was to investigate the relationship between impaired exercise capacity and albumin excretion level in the setting of never treated essential hypertension. Design and methods: For this purpose, 338 consecutive essential hypertensives (52 ± 8.5 years, 227 males, office BP = 148.6/96.1 mmHg) performed a negative for myocardial ...
Hansen Dominique - - 2011
Maximal oxygen uptake (VO(2max)) can be predicted by fixed-rate step tests. However, it remains to be analyzed as to what exercise intensities are reached during such tests to address medical safety. In this study, we compared the physiological response to a standardized fixed-rate step test with maximal cardiopulmonary exercise testing ...
Lee Joo-Young - - 2011
The purpose of this study was to investigate the validity of a newly developed method for quantifying perceived skin wettedness (W (p)) as an index to evaluate heat strain. Eight male subjects underwent 12 experimental conditions: activities (rest and exercise) × clothing (Control, Tyvek and Vinyl condition) × air temperatures (25 and 32°C). To ...
Argus Christos K - - 2011
Argus, CK, Gill, ND, Keogh, JWL, and Hopkins, WG. Assessing lower-body peak power in elite rugby-union players. J Strength Cond Res 25(X): 000-000, 2011-Resistance training at the load that maximizes peak power (Pmax) may produce greater increases in peak power than other loads. Pmax for lower-body lifts can occur with ...
Simão Roberto - - 2011
Simão, R, Lemos, A, Salles, B, Leite, T, Oliveira, É, Rhea, M, and Reis, VM. The influence of strength, flexibility, and simultaneous training on flexibility and strength gains. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to examine the strength and flexibility gains after isolated or ...
Ispoglou Theocharis - - 2011
To investigate the effects of daily oral L-leucine ingestion on strength, bone mineral-free lean tissue mass (LTM) and fat mass (FM) of free living humans during a 12-wk resistance-training program. Twenty-six initially untrained men (n = 13 per group) ingested either 4 g/d of L-leucine (leucine group: age 28.5 ± ...
Fahlman Mariane M - - 2011
Abstract Purpose . Determine the effects of 16 weeks of strength training on measures of functional ability in elderly who are functionally limited. Design . Quasi-experimental trial in which elderly volunteers were assigned to either an exercise group or a control group. Participants . Eighty-seven participants (65?93 years) living independently ...
David Thivel - - 2011
This study examined gender differences in terms of energy intake and appetite feelings after an acute bout of physical exercise among obese adolescents. Seven obese girls and seven obese boys were asked to complete a sedentary and an exercise session in random order, where their food consumption and appetite sensations ...
Wu Ying-Tai - - 2011
To evaluate short- (3 months) and long-term (9 months) effects of home-based exercise on adiponectin, exercise behavior and metabolic risk factors in middle-aged adults at diabetic risk. One hundred and thirty-five middle-aged adults (38 men, 97 women) with at least one diabetic risk factor were randomly assigned to either a ...
Gatterer H - - 2011
Body composition is highly modifiable through exercise and may be changed by the physical stress of soccer training and competition. Especially body water as a constituent of body composition is assumed to be subjected to changes. It is speculated that during the most important soccer championship the combination of heat ...
Straznicky Nora E - - 2011
Metabolic syndrome (MetS) obesity is an independent risk factor for chronic kidney disease. This study was conducted to examine the effects of lifestyle interventions on renal parameters and putative metabolic, neuroadrenergic and hemodynamic mediators of renal injury. Untreated men and women (mean age 55 ± 1 years; BMI 32.7 ± ...
Peterson Mark D - - 2011
Sarcopenia and weakness are known to precipitate risk for disability, comorbidity, and diminished independence among aging adults. Resistance exercise has been proposed as a viable intervention to elicit muscular adaptation and improve function. However, the reported prevalence of resistance exercise participation among US adults aged >50 years is very low. ...
Beelen Milou - - 2011
This study investigates the impact of protein co-ingestion with carbohydrate on muscle protein synthesis during endurance type exercise. Twelve healthy male cyclists were studied during 2 h of fasted rest, followed by 2 h of continuous cycling at 55% W(max). During exercise, subjects received either 1.0 g•kg(-1)•h(-1) carbohydrate (CHO) or ...
Schenk Kai - - 2011
: To examine the physiological characteristics of experienced ski mountaineers and to determine the physical demands of ski mountaineering competition. : Descriptive field study. : An international ski mountaineering competition characterized by 20 400 m distance and 1869 m altitude difference that took place in March 2009 in the South ...
Annesi James J - - 2011
The link between physical activity and weight loss has precipitated interest in interventions to foster adherence to exercise. It has been suggested that treatment effects, when significant, should be analyzed to determine theory-based mediators. This research assessed possible mediation of changes in Physical Self-Concept, Exercise Self-Efficacy, Total Mood Disturbance, and ...
Lewis Beth A - - 2011
Exercise during pregnancy is associated with reduced rates of preeclampsia, gestational diabetes, anxiety, insomnia, and excessive weight gain. Continued exercise during the postpartum period is important for healthy weight loss and reduced anxiety. Unfortunately, pregnant and postpartum women are significantly less active than nonpregnant women. The purpose of this pilot ...
Chaudry Hannah - - 2011
Chaudry H, Yip DS, Bush T, Reynolds V, Witzke L, Taylor V, Hosenpud JD. Exercise performance increases coincident to body weight over the first two years following cardiac transplantation. Clin Transplant 2011 DOI: 10.1111/j.1399-0012.2011.01410.x. © 2011 John Wiley & Sons A/S. Abstract:  Background:  To determine whether exercise performance changed over ...
Cederberg Henna - - 2011
OBJECTIVE: Physical activity is a key component of lifestyle intervention but its independent contribution to weight loss and prevention of cardiovascular disease (CVD) remains unclear. We conducted a population-level follow-up study among young healthy Finnish men undergoing an intensive exercise intervention to examine the independent contribution of exercise to common ...
Ardestani Afrooz A Division of Cardiology, Hartford Hospital, Hartford, Connecticut, - - 2011
Low cardiorespiratory fitness and low serum 25-hydroxy vitamin D (25[OH]D) levels are associated with increased cardiovascular and all-cause mortality, but whether low 25(OH)D is independently associated with cardiorespiratory fitness in healthy adults is not known. We examined 25(OH)D levels and fitness in 200 healthy adults participating in a double-blind clinical ...
Dubé J J JJ Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh School of Medicine, University of Pittsburgh, 3459 Fifth Avenue, MUH N807, Pittsburgh, PA 15213, - - 2011
Intramyocellular lipids, including diacylglycerol (DAG) and ceramides, have been linked to insulin resistance. This randomised repeated-measures study examined the effects of diet-induced weight loss (DIWL) and aerobic exercise (EX) on insulin sensitivity and intramyocellular triacylglycerol (IMTG), DAG and ceramide. Sixteen overweight to obese adults (BMI 30.6 ± 0.8; 67.2 ± 4.0 years of age) ...
Redman Leanne M LM Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808, USA. - - 2011
In a prospective study, eight women with polycystic ovary syndrome completed 16 weeks of individualized aerobic exercise training. Independent of changes in body weight and adiposity there was a statistically significant increase in aerobic fitness and insulin sensitivity and a statistically significant decrease in the total number of follicles measured ...
Goodwin Huw - - 2011
OBJECTIVE: Compulsive exercise has been closely linked with eating disorders, and has been widely reported in both clinical and nonclinical settings. It has been shown to have a negative impact on eating disorder treatment and outcome. However, the risk factors for compulsive exercise have not been examined. This study aimed ...
Coso Juan Del - - 2011
The aim of this study was to investigate the relevance of individual characteristics for thermoregulation during prolonged cycling in the heat. For this purpose, 28 subjects cycled for 60 min at 60% VO(2peak) in a hot-dry environment (36 ± 1°C; 25 ± 2% relative humidity, airflow 2.5 m/s). Subjects had a wide range of body mass ...
Dabbs Nicole C - - 2011
Dabbs, NC, Muñoz, CX, Tran, TT, Brown, LE, and Bottaro, M. Effect of different rest intervals after whole-body vibration on vertical jump performance. J Strength Cond Res 25(3): 662-667, 2011-Whole-body vibration (WBV) may potentiate vertical jump (VJ) performance via augmented muscular strength and motor function. The purpose of this study ...
Marín Pedro J - - 2011
The aim of this study was to investigate surface electromyographic activity (sEMG) and rate of perceived exertion (RPE) during semi-squat exercise on vibration platform compared with semi-squat exercise performed on a Smith machine. Twenty-three recreationally active students (15 males and 8 females) were exposed to six different loads in one ...
Tamura Yoshiaki - - 2011
The beneficial effects of endurance exercise include insulin-sensitization and reduction of fat mass. Limited knowledge is available about the mechanisms by which endurance exercise exerts the salutary effects. Myokines, cytokines secreted by skeletal muscle, have been recognized as a potential mediator. Recently, a role of skeletal muscle-derived interleukin-15 (IL-15) in ...
Larsen Filip J - - 2011
Nitrate, an inorganic anion abundant in vegetables, is converted in vivo to bioactive nitrogen oxides including NO. We recently demonstrated that dietary nitrate reduces oxygen cost during physical exercise, but the mechanism remains unknown. In a double-blind crossover trial we studied the effects of a dietary intervention with inorganic nitrate on basal ...
Al-Rahamneh Harran Q - - 2011
Al-Rahamneh HQ, Eston RG. Prediction of peak oxygen consumption from the ratings of perceived exertion during a graded exercise test and ramp exercise test in able-bodied participants and paraplegic persons. To assess the accuracy of predicting peak oxygen consumption (Vo(2)peak) from a graded exercise test (GXT) and a ramp exercise ...
Bruno Paula Marta - - 2011
The responses to supramaximal exercise testing have been traditionally analyzed by means of standard parametric and nonparametric statistics. Unfortunately, these statistical approaches do not allow insight into the pattern of variation of a given parameter over time. The purpose of this study was to determine if the application of dynamic ...
Sun Ming-Xiao - - 2011
The prevalence of overweight and obesity in Chinese children and adolescents was increasing during the past few decades. The goal of this study was to investigate the effects of after-school exercise with or without diet restriction on total and central obesity, fitness level, and metabolic profile in overweight Chinese adolescents. ...
Ratcliff Lance - - 2011
This study compared type of habitual exercise and meal form on diet-induced thermogenesis (DIT) in 29 men age 19-28 yr. Resting metabolic rate (RMR) and DIT response to solid-meal (bar) vs. liquid-meal (shake) ingestion were measured via indirect calorimetry; classifications were sedentary (n = 9), endurance trained (n = 11), ...
Dannelly Bethany D - - 2011
Dannelly, BD, Otey, SC, Croy, T, Harrison, B, Rynders, CA, Hertel, JN and Weltman, A. The effectiveness of traditional and sling exercise strength training in women. J Strength Cond Res 25(2): 464-471, 2011-Strength training often combines closed-kinetic-chain exercises (CKCEs) and open kinetic-chain exercises (OKCEs). The CKCE may be more effective ...
Guidetti Laura - - 2011
The purpose was to examine whether the translation of verbal descriptors from English to Italian affects the validity of the OMNI Scale of Perceived Exertion. 82 people for whom Italian was the primary language performed an orintation trial and a maximal graded exercise test on a cycle ergometer. Ratings of ...
Zisser H - - 2011
Diet and exercise form the foundation of a healthy lifestyle. These are especially important for people living with diabetes mellitus, as they are the most practical non-pharmacological means by which patients may significantly improve their blood glucose levels. Exercise increases insulin sensitivity (both short and long term), lowers blood sugar ...
Chenevière Xavier - - 2011
Discrepancies appear in studies comparing fat oxidation between men and women. Therefore, this study aimed to quantitatively describe and compare whole-body fat oxidation kinetics between genders during exercise, using a sinusoidal (SIN) model. Twelve men and 11 women matched for age, body mass index, and aerobic fitness (maximal oxygen uptake ...
Cho Kang Ok - - 2011
The purpose of this study was to assess the metabolic profile and nutrient intake data in Korean adolescents according to exercise regularity using the forth Korean National Health and Nutrition Examination Survey from 2008 data. A total of 834 Korean adolescents (440 boys, 394 girls) aged 12 to 18 years ...
< 1 2 3 4 5 6 7 8 9 10 >