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Chaouachi Anis - - 2012
Abstract The behavioural modifications that accompany Ramadan intermittent fasting (RIF) are usually associated with some alterations in the metabolic, physiological, and psychological responses of athletes that may affect sport performance. Muslim athletes who are required to train and/or compete during the month-long, diurnal fast must adopt coping strategies that allow ...
Boersma Gretha J - - 2012
There are large individual differences in the success rates of exercise intervention programs aimed at the prevention and treatment of obesity-related disorders. In the present study, we tested the hypothesis that differences in coping style may impact the success rates of these intervention programs. We tested insulin responses before and ...
Conraads Viviane M - - 2012
The practical management of heart failure remains a challenge. Not only are heart failure patients expected to adhere to a complicated pharmacological regimen, they are also asked to follow salt and fluid restriction, and to cope with various procedures and devices. Furthermore, physical training, whose benefits have been demonstrated, is ...
Wells Lesley - - 2012
Control cognitions and causal attributions of fatigue were examined in relation to Weiner's Causal Attribution theory in a community sample. Participants were 97 females and 43 males, aged 18-83 years. Weiner's dimensions of stability and uncontrollability and physical and psychosocial attributions of fatigue were related to fatigue severity. Escape-avoidance coping ...
Osinbowale Olusegun O - - 2011
Peripheral arterial disease (PAD) is a common disorder caused largely by atherosclerosis. Although it is associated with increased morbidity and cardiovascular mortality, PAD remains underdiagnosed. Traditional PAD care has involved cardiovascular risk factor modification, use of antiplatelet agents, and revascularization. For those individuals who are eligible and willing to perform ...
Machado Marco - - 2011
Machado, M, Koch, AJ, Willardson, JM, Pereira, LS, Cardoso, IM, Motta, MKS, Pereira, R, and Monteiro, AN. Effect of varying rest intervals between sets of assistance exercises on creatine kinase and lactate dehydrogenase responses. J Strength Cond Res 25(5): 1339-1345, 2011-To examine the effects of different rest intervals between sets ...
Robbins Jennifer L - - 2011
The aim of this study was to determine if skeletal muscle capillary density is lower in patients with peripheral artery disease (PAD) and if capillary density relates to functional limitations. PAD patients with intermittent claudication (IC) have a decreased exercise tolerance due to exercise-induced muscle ischemia. Despite the apparent role ...
Amann Markus - - 2011
Existing evidence suggests that exercise-induced alterations of the metabolic milieu of locomotor muscle, and associated peripheral muscle fatigue, affects the central projection of thin fiber muscle afferents. These neurons provide inhibitory feedback to the central nervous system (CNS) and thereby influence the magnitude of central motor drive (CMD) during high ...
Váczi Márk - - 2011
Váczi, M, Tihanyi, J, Hortobágyi, T, Rácz, L, Csende, Z, Costa, A, and Pucsok, J. Mechanical, biochemical, and electromyographic responses to short-term eccentric-concentric knee extensor training in humans. J Strength Cond Res 25(4): 922-932, 2011-This study examined the effects of short-term eccentric-concentric knee extensor training on mechanical and biochemical variables, ...
Skurvydas Albertas - - 2011
Skurvydas, A, Brazaitis, M, and Kamandulis, S. Repeated bout effect is not correlated with intraindividual variability during muscle-damaging exercise. J Strength Cond Res 25(4): 1004-1009, 2011-The aim of this study was to test the hypothesis that the repeated bout effect depends on intraindividual variability during a second bout of eccentric ...
Madeleine P - - 2011
We hypothesized changes in the spatial organization of the trapezius muscle electromyographic (EMG) activity after a shoulder eccentric exercise. The rate of perceived exertion (RPE), the size of the soreness area, maximum force and, EMG from the upper, middle and lower trapezius were recorded. Root mean square (RMS), mean frequency ...
Knicker Axel J - - 2011
Muscle physiologists often describe fatigue simply as a decline of muscle force and infer this causes an athlete to slow down. In contrast, exercise scientists describe fatigue during sport competition more holistically as an exercise-induced impairment of performance. The aim of this review is to reconcile the different views by ...
Kenjale Aarti A - - 2011
Peripheral Arterial Disease (PAD) results in a failure to adequately supply blood and O(2) to working tissues and presents as claudication pain during walking. Nitric oxide (NO) is essential for vascular health and function. Plasma nitrite (NO(2)(-)) is a marker of vascular NO production but may also be a protected ...
Mosti M P - - 2011
Peripheral arterial disease (PAD) patients suffer from reduced blood flow to the lower extremities, which causes impaired walking ability. Plantar flexion (PF) endurance training and maximal strength training (MST) induce distinct types of improvements in walking ability in PAD. However, the combined effects of both exercises are still not explored ...
English Arthur W - - 2011
Full functional recovery after traumatic peripheral nerve injury is rare. We postulate three reasons for the poor functional outcome measures observed. Axon regeneration is slow and not all axons participate. Significant misdirection of regenerating axons to reinnervate inappropriate targets occurs. Seemingly permanent changes in neural circuitry in the central nervous ...
Cahill Farrell - - 2011
The superimposed twitch (SIT) technique was used to study the effect of whole body hypothermia on maximal voluntary activation of elbow flexors. Seven subjects [26.4±4 (SD) yr] were exposed to 60 minutes of either immersion in 8°C water (Hypothermia), or sitting in 22°C air (Control). Voluntary activation was assessed during ...
Pires Flávio O - - 2011
This study determined which peripheral variables would better predict the rating of perceived exertion (RPE) and time to exhaustion (TE) during exercise at different intensities. Ten men performed exercises at first lactate threshold (LT1), second lactate threshold (LT2), 50% of the distance from LT1 to LT2 (TT(50%) ), and 25% ...
Chen Che-Hsiu - - 2011
: This study investigated whether flexibility training would attenuate muscle damage induced by maximal eccentric exercise. : Thirty untrained young men were allocated to static stretching (SS), proprioceptive neuromuscular facilitation (PNF), or control group (n = 10 per group). The SS consisted of 30 sets of a 30-s standard SS ...
Jakovljević Vladimir Lj - - 2011
Some side-effects of excessive physical training are ascribed to reactive oxygen species production. In this work we investigated the effects of progressively imposed maximal physical effort (levels I to V), using progressive maximal exercise test, on peripheral blood lactate, NO (through NO2-), superoxide anion (O2-) and methemoglobin (MetHb) in a ...
Goldfarb Allan H - - 2011
: This study tested the effectiveness of a fruit, berry, and vegetable concentrate (FVC), Juice Plus+ (NSA LLC, Collierville, TN), supplement on muscle function and oxidative stress in response to an acute bout of eccentric exercise (EE). : Forty-one healthy volunteers (age = 18-35 yr) were randomly assigned to either ...
Périard Julien D - - 2011
PURPOSE:: Hyperthermia was induced during prolonged exercise (ExH) and passive heating (PaH) to isolate the influence of exercise on neuromuscular function during a maximal voluntary isometric contraction (MVC) of the quadriceps under heat stress. The influence of cardiovascular strain in limiting endurance performance in the heatwas also examined. METHODSCOLON;: On ...
Schwenkreis Peter - - 2011
Introduction: The aim of this study was to apply paired-pulse transcranial magnetic stimulation (TMS) to assess intracortical inhibition (ICI) during fatiguing muscle exercise in healthy humans and patients with muscular dystrophy (MD) and fibromyalgia syndrome (FMS) to obtain insight into differential central mechanisms. Methods: We studied 23 patients with MD, ...
Sheikh Mobeen A - - 2011
Peripheral arterial disease predicts future cardiovascular events and all-cause mortality. Conventional methods of assessment might underestimate its true prevalence. We sought to determine whether a postexercise ankle-brachial index (ABI), not only improved peripheral arterial disease detection, but also independently predicted death. This was an observational study of consecutive patients referred ...
Vitale Cristiana - - 2011
Trimetazidine, an inhibitor of free fatty acids (FFA) oxidation, shifts cardiac and muscle metabolism from FFA to glucose utilization. This effect results in a greater production of high energy phosphates and ultimately into an anti-ischemic effect. Whether the anti-ischemic cardiac effects of trimetazidine (TMZ) can be translated to skeletal muscle ...
Paschalis Vassilis - - 2011
The effects of chronic eccentric-only versus concentric-only exercise on muscle physiology and blood biochemistry were investigated. Twenty women performed on an isokinetic dynamometer a concentric (n = 10;mean ± SEM: age = 21.0 ± 0.4 yr, body fat = 22.0% ± 0.9%) or an eccentric (n = 10, age = ...
Chapman Dale W - - 2011
This study tested the hypothesis that the first exercise bout consisting of slow-velocity (30° · s(-1)) maximal lengthening contractions would not affect muscle damage in a subsequent bout consisting of fast-velocity (210° · s(-1)) lengthening contractions. Eighteen men were randomly assigned into either a repeated bout group (n = 10) ...
Guilhem Gaël - - 2010
This study was designed to develop a new device allowing mechanical analysis of eccentric exercise against a constant load, with a view in mind to compare isoload (IL) and isokinetic (IK) eccentric exercises. A plate-loaded resistance training device was integrated to an IK dynamometer, to perform the acquisition of mechanical ...
Dugas Jonathan P - - 2010
The regulation of temperature during exercise is a widely debated topic. Two primary views exist, with one embracing a peripheral approach and the other adopting a more integrative and central explanation of the physiology. Especially in the past 10 years, several investigators have published increasingly elegant interpretations that have moved ...
Alberghina Daniela - - 2010
The purpose of this study was to evaluate the influence of exercise on plasma tryptophan (TRP) and free serotonin (f5-HT), whole blood-5-HT (WB-5-HT) and f5-HT/WB-5-HT ratio in Italian Saddle horses. Six clinically healthy Italian Saddle horses were subjected to a 450 meters obstacles course. Blood samples were collected from each ...
Mardimae Alexandra - - 2011
To test the hypothesis that cardiac output (Q) in patients with arteriovenous malformations (AVMs) is normal at rest and increases disproportionately during exercise. Q was measured in eight patients with large peripheral AVMs and in nine healthy subjects using a noninvasive carbon dioxide (CO₂)-based differential Fick method. Subjects were tested ...
Jakeman John R - - 2010
Strategies to manage the symptoms of exercise-induced muscle damage (EIMD) are widespread, though are often based on anecdotal evidence. The aim of this study was to determine the efficacy of a combination of manual massage and compressive clothing and compressive clothing individually as recovery strategies after muscle damage. Thirty-two female ...
Ingham Stephen A - - 2010
The aim of this study was to examine the effect of concentric warm-up exercise on eccentrically induced changes in muscle strength, range of motion, and soreness of the elbow flexors. Ten resistance-exercise naive participants performed intermittent incremental eccentric actions (42 in total) of the elbow flexor muscles of each arm ...
Guilhem Gaël - - 2010
The present study aimed to standardize isotonic (IT) and isokinetic (IK) eccentric exercises by equalizing the amount of work and the angular velocity at two intensity levels, to be able to compare specific effects of these exercise modes on the neuromuscular system. Fourteen subjects participated in three test sessions consisting ...
Barnes Matthew J - - 2011
Moderate, acute alcohol consumption after eccentric exercise has been shown to magnify the muscular weakness that is typically associated with exercise-induced muscle damage (EIMD). As it is not known whether this effect is dose-dependent, the aim of this study was to investigate the effect of a low dose of alcohol ...
Piitulainen Harri - - 2011
It has been shown that mean muscle fiber conduction velocity (CV) can be acutely impaired after eccentric exercise. However, it is not known whether this applies to other exercise modes. Therefore, the purpose of this experiment was to compare the effects of eccentric and concentric exercises on CV, and amplitude ...
Chen Trevor C - - 2011
This study tested the hypothesis that changes in indirect markers of muscle damage following maximal eccentric exercise would be smaller for the knee extensors (KE) and flexors (KF) compared with the elbow flexors (EF) and extensors (EE). A total of 17 sedentary men performed five sets of six maximal isokinetic ...
Caruso John F - - 2010
INTRODUCTION: Numerous variables impact resultant testosterone concentrations (TC) that foretell the efficacy of workouts. Identifying variables may aid the development of in-flight exercise prescription. METHODS: To identify variables that predict the variance in TC from flywheel ergometer exercise, 17 subjects did 3 workouts in a randomized order. Comprised of 10-repetition ...
Alvarez Pedro - - 2010
Eccentric muscle exercise is a common cause of acute and chronic (lasting days to weeks) musculoskeletal pain. To evaluate the mechanisms involved, we have employed a model in the rat, in which eccentric hind limb exercise produces both acute mechanical hyperalgesia as well as long-term changes characterized by enhanced hyperalgesia ...
Hughes Jonathan D - - 2010
Eccentric exercise is known to cause changes to the ultrastructure of skeletal muscle and, in turn, may alter the ability of the muscle to store and utilise intracellular substrates such as intramyocellular lipid (IMCL). The purpose of this study was to test the hypothesis that exercise-induced muscle damage (EIMD) results ...
Sakamoto Akihiro - - 2010
This study aimed to determine whether high-intensity dumbbell exercise involving both concentric and eccentric contractions would provide a temporary alleviation of delayed-onset muscle soreness (DOMS). It also examined the effect of alleviated muscle soreness on dynamic muscle performance using a stretch-shortening cycle (SSC; peak angular acceleration and velocity of the ...
Stock Matt S - - 2010
The present study examined the effects of adding leucine to pre and postexercise carbohydrate beverages on selected markers of muscle damage, delayed-onset muscle soreness (DOMS), and squat performance for up to 72 hours after lower-body resistance training. Seventeen resistance trained men (mean +/- SD age 22.9 +/- 2.9 years) and ...
Leal Junior Ernesto Cesar Pinto - - 2010
STUDY DESIGN: Randomized crossover double-blinded placebo-controlled trial. OBJECTIVE: To investigate if low-level laser therapy (LLLT) can affect biceps muscle performance, fatigue development, and biochemical markers of postexercise recovery. BACKGROUND: Cell and animal studies have suggested that LLLT can reduce oxidative stress and inflammatory responses in muscle tissue. But it remains ...
McBrier Nicole M - - 2010
The purpose of this pragmatic preliminary analysis was to examine the effectiveness of a cocoa-based protein and carbohydrate prototype drink on skeletal muscle damage and perceived soreness after exhaustive exercise. A repeated-measures experimental design was used. Common biomarkers indicative of skeletal muscle damage included creatine kinase (CK), urinary isoprostanes and ...
Barroso Renato - - 2010
Eccentric exercise induces muscle damage, but controversy exists concerning the effect of contraction velocity on the magnitude of muscle damage, and little is known about the effect of contraction velocity on the repeated-bout effect. This study examined slow (60 degrees.s(-1)) and fast (180 degrees.s(-1)) velocity eccentric exercises for changes in ...
Corona Benjamin T - - 2010
Malignant hyperthermia (MH) episodes may occur upon exposure to halogenated anesthetics, during resistance and endurance exercise, and in response to thermal stress. The purpose of this study was to investigate the effects of prior eccentric and concentric (i.e., wheel running) exercise on the thermal sensitivity of isolated MH-susceptible mouse muscle ...
Barnes Jill N - - 2010
Acute inflammatory responses are linked to a transient increase in risk of a cardiovascular event, and this risk may be mediated by a concomitant reduction in vascular function. Humans experience an acute inflammatory response as a consequence of infection, injury, or muscle damage. We measured macrovascular function before and after ...
Baroni Bruno Manfredini - - 2010
The purpose of the present study was to determine the effect of low level laser therapy (LLLT) treatment before knee extensor eccentric exercise on indirect markers of muscle damage. Thirty-six healthy men were randomized in LLLT group (n = 18) and placebo group (n = 18). After LLLT or placebo ...
Machado Marco - - 2010
PURPOSE: To examine serum creatine kinase (CK) activity after resistance exercise bouts with different rest intervals between sets and exercises in high responding (HR) and normal responding (NR) subjects. METHODS: During each resistance exercise bout, three sets with 10-repetition maximum (10RM) loads were completed for the chest press, cable pulldown, ...
Tyler Timothy F - - 2010
Isokinetic eccentric training of the wrist extensors has recently been shown to be effective in treating chronic lateral epicondylosis. However, isokinetic dynamometry is not widely available or practical for daily exercise prescription. Therefore, the objective of this study was to assess the efficacy of a novel eccentric wrist extensor exercise ...
Gremeaux V - - 2010
OBJECTIVE: To examine the effect of eccentric endurance training on exercise capacities in patients with coronary artery disease. DESIGN: Randomized parallel group controlled study. SETTING: Cardiac rehabilitation unit, Dijon University Hospital. PARTICIPANTS: Fourteen patients with stable coronary artery disease after percutaneous coronary intervention. INTERVENTION: Patients followed 15 sessions of training ...
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