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Rocco D D F M DD Lipids Laboratory (LIM-10), Faculty of Medical Sciences, University of Sao Paulo, Av. Dr. Arnaldo 455, Room 3305, Sao Paulo, SP, CEP 01246000, - - 2011
We analyzed the effect of a 6-week aerobic exercise training program on the in vivo macrophage reverse cholesterol transport (RCT) in human cholesteryl ester transfer protein (CETP) transgenic (CETP-tg) mice. Male CETP-tg mice were randomly assigned to a sedentary group or a carefully supervised exercise training group (treadmill 15 m/min, ...
Ishizuka Toshimitsu - - 2011
Ishizuka, T, Hess, RA, Reuter, B, Federico, MS, and Yamada, Y. Recovery of time on limits of stability from functional fatigue in division II collegiate athletes. J Strength Cond Res 25(X): 000-000, 2011-Health and fitness professionals working with athletes could establish effective and safe practice and training programs if recovery ...
Chu Lisa - - 2011
The recent surge in childhood obesity has renewed interest in studying exercise as a therapeutic means of metabolizing fat. However, carbohydrate (CHO) intake attenuates whole body fat oxidation during exercise in healthy children and may suppress fat metabolism in obese youth. To determine the impact of CHO intake on substrate ...
Tolfrey Keith - - 2011
This study examined the effects of 30 and 60 min of moderate intensity exercise on postprandial triacylglycerol concentration [TAG] in 11 healthy, 13-year-old boys. The boys completed three counterbalanced conditions. On day 1, they either rested (CON), or jogged for 30 min (EX30) or 60 min (EX60) at 55% peak [Formula: see text] ...
Zabala Mikel - - 2011
The aim of the present study was to examine the effect of sodium bicarbonate ingestion on consecutive "all out" sprint tests, analyzing the acid-base status and its influence on performance and perceived effort. Ten elite bicycle motocross (BMX) riders (20.7 ± 1.4 years, training experience 8-12 years) participated in this study which consisted of ...
Lansley Katherine E - - 2011
PURPOSE:: Dietary nitrate supplementation has been shown to reduce the O2 cost of sub-maximal exercise and to improve high-intensity exercise tolerance. However, it is presently unknown whether it may enhance performance during simulated competition. The present study investigated the effects of acute dietary nitrate supplementation on power output (PO), V˙o2, ...
Pires F - - 2011
Objective This study analysed cardiopulmonary, metabolic and rating of perceived exertion (RPE) responses during exercise bouts performed below, at and above the second lactate threshold (LT2) intensity. Methods 10 healthy men performed constant workloads to exhaustion at the first lactate threshold (LT1), LT2 and 25% of the difference between LT2 ...
Carol Arnoud - - 2011
The purpose of this study was to investigate the potential of bovine colostrum to attenuate postexercise decline in immune function. The authors evaluated the time course of a number of immune variables after short-term intense exercise in 9 male athletes after 10 d of supplementation with either colostrum or skim-milk ...
Kim Bang Hyun - - 2011
The purpose of this study was to examine the effects of a 6-wk intervention that used guided relaxation and exercise imagery (GREI) to increase self-reported leisure-time exercise behavior among older adults. A total of 93 community-dwelling healthy older adults (age 70.38 ± 8.15 yr, 66 female) were randomly placed in ...
Lin Yen-Chun - - 2011
Aims.  (1) To explore the types and three components (frequency, duration and caloric expenditure) of leisure-time physical activity in community older people with chronic diseases. (2) To identify leisure-time physical activity-related factors in these community older people. Background.  Previous research has focused primarily on measuring the actual physiological or psychological ...
Brunner-Ziegler Sophie - - 2011
Brunner-Ziegler, S, Strasser, B, and Haber, P. Comparison of metabolic and biomechanic responses to active vs. passive warm-up procedures before physical exercise. J Strength Cond Res 25(4): 909-914, 2011-Active warm-up before physical exercise is a widely accepted practice to enhance physical performance, whereas data on modalities to passively raise tissue ...
Lund Adam J S - - 2011
: Regular exercise is inversely related to markers of chronic inflammation, but we do not know to what extent these changes are the product of recent exercise behavior. The aim of the present investigation was to examine the stability of markers of chronic inflammation in the face of short-term positive ...
Pointon Monique - - 2011
This study examined the effects of cold therapy (COLD) on recovery of voluntary and evoked contractile properties following high-intensity, muscle-damaging and fatiguing exercise. Ten resistance-trained males performed 6 × 25 maximal concentric/eccentric muscle contractions of the dominant knee extensors (KE) followed by a 20-min recovery (COLD v control) in a randomized cross-over ...
Soci U P R - - 2011
MiRNAs regulate cardiac development, hypertrophy, and angiogenesis, but their role in cardiac hypertrophy (CH) induced by aerobic training has not previously been studied. Aerobic training promotes physiological CH preserving cardiac function. This study assessed involvement of miRNAs-29 in CH of trained rats. Female Wistar rats (n=7/group) were randomized into three ...
Arduini Alessandro - - 2011
Objectives: Different models to assess HR recovery have been developed but knowledge of their reliability is poor at different submaximal exercise intensities and recovery durations. Our aim was to determine the reliability of HR recovery after a test on a cycle ergometer. Design: Twenty-one healthy individuals performed a submaximal exercise ...
Hood Melanie S - - 2011
INTRODUCTION: High intensity interval training (HIT) increases skeletal muscle oxidative capacity similar to traditional endurance training, despite a low total exercise volume. Much of this work has focused on young active individuals and it is unclear if the results are applicable to older, less active populations. In addition, many studies ...
Bressel Eadric - - 2011
PURPOSE:: To determine if trunk muscle activity levels are different during spine stability exercises performed in water compared to land. METHODS:: Eleven male participants performed four abdominal trunk exercises on land and in water at the depth of the xiphoid. The exercises were abdominal hollowing, abdominal bracing, and anteroposterior and ...
Iaia F Marcello - - 2011
The hypothesis investigated whether exercise performance over a broad range of intensities is determined by specific skeletal muscle characteristics. Seven subjects performed 8-10 exhaustive cycle trials at different work loads ranging from 150 to 700 W (150 min - 20 s). No relationships between the performance times at high and ...
Ogura Y - - 2011
Aim:  We recently reported that α-actinin adaptation occurs at the isoform level. This study was undertaken to clarify the effects of: (1) ageing-induced shift of myosin heavy chain (MyHC) composition and (2) endurance exercise training on α-actinin isoforms in rat plantaris muscle. Methods:  Adult (18 mo) and old (28 mo) ...
Hamouti Nassim - - 2011
The purpose of this study was to determine whether sweat sodium concentration ([Na(+)](sweat)) during exercise in the heat differs between aerobically trained and untrained individuals. On three occasions, ten endurance-trained (Tr) and ten untrained (UTr) subjects ([Formula: see text] = 4.0 ± 0.8 vs. 3.4 ± 0.7 L min(-1), respectively; P < 0.05) cycled in a hot-ventilated environment (36 ± 1°C; ...
Murgatroyd Scott R - - 2011
Tolerance to high-intensity constant-power (P) exercise is well described by a hyperbola with two parameters: a curvature constant (W') and power asymptote termed 'critical power' (CP). Since the ability to sustain exercise is closely related to the ability to meet the ATP demand in a steady state, we reasoned that ...
Marwood Simon - - 2011
Previous studies have demonstrated faster pulmonary oxygen uptake ([Formula: see text]) kinetics in the trained state during the transition to and from moderate-intensity exercise in adults. Whilst a similar effect of training status has previously been observed during the on-transition in adolescents, whether this is also observed during recovery from ...
Kavouras S A - - 2012
We aimed to evaluate whether an intervention program emphasizing in increased fluid intake can improve exercise performance in children exercising in the heat. Ninety-two young athletes participated in the study (age: 13.8 ± 0.4 years, weight: 54.9 ± 1.5 kg). Thirty-one (boys: 13, girls: 18) children served as the control ...
Närhi Tommi - - 2011
We investigated the effects of lifelong voluntary exercise on articular cartilage of mice. At the age of 4 weeks C57BL mice (n = 152) were divided into two groups, with one group serving as a sedentary control whereas the other was allowed free access to a running wheel from the ...
Marwood Simon - - 2011
COPD patients have reduced muscle glutamate which may contribute to an impaired response of oxidative metabolism to exercise. We hypothesised that prior glutamine supplementation would enhance V(o2) peak, V(o2) at lactate threshold and speed pulmonary oxygen uptake kinetics in COPD. 13 patients (9 male, age 66±5years, mean±SD) with severe COPD ...
Sale Craig - - 2011
PURPOSE:: We examined the effect of β-alanine supplementation plus sodium bicarbonate on high-intensity cycling capacity. METHODS:: Twenty males (age 25±5y; height 1.79±0.06 m; body mass 80.0±10.3 kg) were assigned to either a placebo (P) or a β-alanine (BA, 6.4 g·d over 4 wks) group based upon powermax, completing four cycling ...
Gee Thomas I - - 2011
Rowers regularly undertake rowing training within 24 h of performing bouts of strength training; however, the effect of this practice has not been investigated. This study evaluated the impact of a bout of high-intensity strength training on 2,000 m rowing ergometer performance and rowing-specific maximal power. Eight highly trained male club rowers ...
Décombaz Jacques - - 2011
PURPOSE:: Both liver and muscle glycogen stores play a fundamental role in exercise and fatigue, but the effect of different carbohydrate (CHO) sources on liver glycogen synthesis in humans is unclear. The aim was to compare the effect of maltodextrin (MD) drinks containing galactose, fructose or glucose on post-exercise liver ...
McCleave Erin L - - 2011
McCleave, EL, Ferguson-Stegall, L, Ding, Z, Doerner, PG III, Wang, B, Kammer, LM, and Ivy, JL. A low carbohydrate-protein supplement improves endurance performance in female athletes. J Strength Cond Res 25(x): 000-000, 2011-The purpose of this study was to investigate if a low mixed carbohydrate (CHO) plus moderate protein (PRO) ...
Iscoe K E - - 2011
Aims:  Individuals with Type 1 diabetes mellitus are susceptible to hypoglycaemia during and after continuous moderate-intensity exercise, but hyperglycaemia during intermittent high-intensity exercise. The combination of both forms of exercise may have a moderating effect on glycaemia in recovery. The aims of this study were to compare the physiological responses and ...
Kacin A - - 2011
This study investigated the effects of frequent low-load ischemic resistance exercise performed to failure on quadriceps size and performance, muscle activation, oxygen kinetics and cardiovascular responses. Ten healthy males performed knee-extension exercise for 4 weeks (4 sessions/week) at 15% maximal voluntary muscle contraction (MVC). One leg was trained with free ...
Shaw Christopher S - - 2011
Our first aim was to investigate whether the ingestion of a single high-fat meal impairs glucose tolerance. Our second aim was to investigate whether improvements in glucose tolerance that are seen after resistance exercise remain when exercise is performed after ingestion of a high-fat meal. Eight young males consumed either ...
Schaar Bettina - - 2011
BACKGROUND: Paediatric patients on maintenance haemodialysis (HD) often report their own physical fitness to be hampered. Their physical endurance capacity is known to be significantly lower than that of healthy controls. However, physical endurance was up to now only examined on non-HD days. We were interested in the effect of ...
Cho J-K - - 2011
The purpose of the study was to examine the effects of training intensity on abdominal fatness reduction and improvements of metabolic risk factors in Korean women (N=45, aged 45.4±7.3 yrs). Subjects were randomly assigned to control (CON, N=15) or low-intensity exercise (LIEX, N=15) or high-intensity exercise (HIEX, N=15). The LIEX ...
Burtscher Martin - - 2011
Data on the upper limit of aerobic power in humans are scarce. Thus, here we demonstrate extraordinarily high V'O(2)max and submaximal exercise performance in a young elite cross country skier (22 years, 170 cm, 63 kg; hemoglobin: 16.8 g/dL) who was evaluated before winning an Olympic gold medal. The test was performed during progressive ...
Abt Grant - - 2011
Abt, G, Siegler, JC, Akubat, I, and Castagna, C. The effects of a constant sprint-to-rest ratio and recovery mode on repeated sprint performance. J Strength Cond Res 25(X): 000-000, 2011-It is unclear if a constant sprint-to-rest ratio allows full performance recovery between repeated sprints over different distances. This is important ...
Sjökvist Jesper - - 2011
Sjökvist, J, Laurent, CM, Richardson, M, Curtner-Smith, M, Holmberg, H-C, and Bishop, PA. Recovery from high-intensity training sessions in female soccer players. J Strength Cond Res 25(X): 000-000, 2011-This study quantified the performance recovery time requirements after training sessions using high-intensity soccer drills with and without the ball in National ...
Macneil Lauren G - - 2011
17β-estradiol (E2) attenuates exercise-induced muscle damage and inflammation in some models. Eighteen men completed 150 eccentric contractions after random assignment to placebo (CON) or E2 supplementation (EXP). Muscle biopsies and blood samples were collected at baseline (BL), following 8 day supplementation (PS), + 3 (3H) and + 48 (48H) hours ...
Hayes Heather A - - 2011
: Resistance exercise via negative, eccentrically induced work (RENEW) has been shown to be associated with improvements in strength, mobility, and balance in multiple clinical populations. However, RENEW has not been reported for individuals with multiple sclerosis (MS). : Nineteen individuals with MS (8 men, 11 women; age mean = ...
Gualano A B - - 2011
It has been demonstrated that branched-chain amino acids (BCAA) transaminase activation occurs simultaneously with exercise-induced muscle glycogen reduction, suggesting that BCAA supplementation might play an energetic role in this condition. This study aimed to test whether BCAA supplementation enhances exercise capacity and lipid oxidation in glycogen-depleted subjects. Using a double-blind ...
Roberts Llion A - - 2011
To test the hypothesis that antioxidants can attenuate high-intensity interval training-induced improvements in exercise performance. Two groups of recreationally active males performed a high-intensity interval running protocol, four times per week for 4 wk. Group 1 (n = 8) consumed 1 g of vitamin C daily throughout the training period, ...
Beneke Ralph - - 2011
A link between lactate and muscular exercise was seen already more than 200 years ago. The blood lactate concentration (BLC) is sensitive to changes in exercise intensity and duration. Multiple BLC threshold concepts define different points on the BLC power curve during various tests with increasing power (INCP). The INCP ...
Magalhães J - - 2011
The aim of the present study was to analyze the physiological and neuromuscular impact of a one 3-set beach-volleyball match and to analyze the ability of the players to recover from fatigue. Heart rate (HR) and blood lactate concentration (BLC) were measured in sixteen Portuguese male elite volleyball players during ...
Piyakhachornrot Naphaphorn N Department of Nursing, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, - - 2011
To examine the impact of an integrated health education and exercise program on knee osteoarthritis knowledge, self-efficacy expectations, behaviors, and health outcomes including severity of knee symptoms, muscle strength, joint range of motion, and body mass index in middle-aged adults with knee osteoarthritis. Sixty-five participants were assigned to either Group ...
Kokkinos Peter - - 2011
Background: Both impaired heart rate recovery (HRR) and low fitness are associated with higher mortality risk. In addition, HRR is influenced by fitness status. The interaction between HRR, mortality, and fitness has not been clearly defined. Thus, we sought to evaluate the association between HRR and all-cause mortality and to ...
Bartlett Jonathan D - - 2011
The aim of this study was to objectively quantify ratings of perceived enjoyment using the Physical Activity Enjoyment Scale following high-intensity interval running versus moderate-intensity continuous running. Eight recreationally active men performed two running protocols consisting of high-intensity interval running (6×3 min at 90% VO(2max) interspersed with 6×3 min active recovery at ...
Rector R Scott - - 2011
The maintenance of normal body weight either through dietary modification or being habitually more physically active is associated with reduced incidence of nonalcoholic fatty liver disease (NAFLD). However, the means by which weight gain is prevented and potential mechanisms activated remain largely unstudied. Here, we sought to determine the effects ...
Carrasco Luis - - 2011
The aim of the study was to determine the effectiveness of low-frequency vibration recovery (LFV-rec) on blood lactate removal, muscle contractile properties, and on time to exhaustion during cycling at maximal oxygen uptake power output (pVO(2max)). Twelve active males carried out three experimental sessions. In session 1, participant's maximal oxygen ...
Abbiss Chris R - - 2011
Single-leg cycling may enhance the peripheral adaptations of skeletal muscle to a greater extent than double-leg cycling. The purpose of the current study was to determine the influence of 3 wk of high-intensity single- and double-leg cycle training on markers of oxidative potential and muscle metabolism and exercise performance. In ...
Yfanti Christina - - 2011
While production of reactive oxygen and nitrogen species (RONS) is associated with some of the beneficial adaptations to regular physical exercise, it is not established whether RONS play a role in the improved insulin-stimulated glucose uptake in skeletal muscle obtained by endurance training. To assess the effect of antioxidant supplementation ...
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