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Results 201 - 250 of 1490
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Köklü Yusuf - - 2011
Köklü, Y, Aşçi, A, Koçak, FÜ, Alemdaroğlu, U, and Dündar, U. Comparison of the physiological responses to different small-sided games in elite young soccer players. J Strength Cond Res 25(x): 000-000, 2011-The purpose of this study was to compare the blood lactate (La), heart rate (HR) and percentage of maximum ...
Gimenes A C - - 2011
We determined the response characteristics and functional correlates of the dynamic relationship between the rate (Δ) of oxygen consumption ( <img border=0 width=11 height=13 src="548_files/image001.gif" v:shapes="_x0000_i1188">O2) and the applied power output (work rate = WR) during ramp-incremental exercise in patients with mitochondrial myopathy (MM). Fourteen patients (7 males, age 35.4 ...
González-Haro C - - 2011
The present cross-sectional study was designed to assess the agreement between maximal fat oxidation rate (maxFAT (OXR)) VS. Lactate Threshold (LT), and CROSS-OVER point (CO (P)) VS. Individual Anaerobic Threshold (IAT) in well-trained athletes. 2 groups of male, well-trained endurance athletes (short-distance triathletes (ST) (n=11), and road cyclists (RC) (n=11)) ...
Riemann Bryan L - - 2011
Riemann, BL, Limbaugh, GK, Eitner, JD, and LeFavi, RG. Medial and lateral gastrocnemius activation differences during heel-raise exercise with three different foot positions. J Strength Cond Res 25(3): 634-639, 2011-Despite little objective support, heel-raise exercises are commonly performed using varying foot positions in an attempt to alter medial (MG) and ...
Jeanes Elizabeth M - - 2011
Traditionally defined in terms of %maximal heart rate (%HRmax) or %maximal metabolic equivalents, the process of exercise prescription is still difficult and individually imprecise. An alternative, and simpler, method is to define exercise intensity in terms of the Talk Test, which may be a surrogate for ventilatory threshold and more ...
Tse Mimi My - - 2011
Aim.  To provide a physical exercise programme for older adults living in nursing homes. Background.  Pain is common among older persons and for those already in long-term care and having difficulty in coping with pain will be at risk of further reducing their optimal independent function. Design.  A quasi-experimental single ...
Astorino T A - - 2011
This study investigated the effect of acute caffeine (CAF) intake on postexercise oxygen consumption (EPOC) after intense resistance training. Fourteen strength-trained men (mean±SD age and mass =23.1±4.2 yr and 83.4±13.2 kg, respectively) who were caffeine users initially completed one-repetition maximum testing (1-RM) of four exercises: bench press, leg press, lat ...
Siegel Rodney - - 2011
The purpose of this study was to determine whether ingestion of a small bolus of ice slurry (1.25 g kg(-1)) could attenuate the reduction in maximal voluntary isometric contraction (MVC) torque output during a 2-min sustained task following exercise-induced hyperthermia. On two separate occasions, 10 males (age: 24 ± 3 years, [Formula: see text]: 49.8 ± 4.7 ml kg(-1) min(-1)) ...
Ng Elton C T - - 2011
To compare the temporal recruitment of the vastus medialis obliquus (VMO) and vastus lateralis (VL) during voluntary ankle movements and perturbed standing in people with patellofemoral pain, and to determine the effects of different reflex and voluntary postural exercise tasks on VMO facilitation. Repeated-measures design. Twenty-three subjects with patellofemoral pain. ...
Sporis Goran - - 2011
The purpose of this study was to evaluate the validity and reliability of equations for predicting maximal values of heart rate (HR) in military personnel. Five hundred and nine members of the Croatian Armed Forces (age 29.1 +/- 5.5 years; height 180.1 +/- 6.6 cm; body mass 83.4 +/- 11.3 ...
Sandberg Tracy - - 2011
Self-generated validity (SGV) refers to the fact that measurement of cognitions can lead to behaviour change. The present research tested to two predictions in relation to SGV: SGV is stronger when supplementing measures of intentions and other components of the Theory of Planned Behaviour (TPB) with measures of anticipated regret; ...
Keese Felipe - - 2011
Keese, F, Farinatti, P, Pescatello, L, and Monteiro, W. A comparison of the immediate effects of resistance, aerobic, and concurrent exercise on postexercise hypotension. J Strength Cond Res XX(X): 000-000, 2011-A comparison of the immediate effects of resistance, aerobic, and concurrent exercise on postexercise hypotension. The influence of resistance exercise ...
Zadro Ivan - - 2011
Zadro, I, Sepulcri, L, Lazzer, S, Fregolent, R, and Zamparo, P. A protocol of intermittent exercise (shuttle runs) to train young basketball players. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to set up a protocol of intermittent exercise to train young basketball players. Twenty-one players ...
Morton R Hugh - - 2011
Reports on reproducibility of lactate markers usually considered only two trials. The authors assessed reproducibility of power output at seven markers in 11 fit subjects over at least six trials under tightly controlled conditions. Subjects undertook incremental exercises (50 W start, +50 W every 3 min to exhaustion) on a ...
Li Walter - - 2011
Patients with pulmonary arteriovenous malformations (PAVMs) are at risk for multiple complications and require close follow-up. We investigated the reproducibility of the 6-minute walk test (6MWT) and exercise stress test (EST) for the evaluation of low oxygen saturation in patients with PAVMs. Twenty-two patients with PAVMs, most of whom had ...
Austin Damien - - 2011
Objectives The purpose of the present study was to describe the match-play demands of professional rugby union players competing in Super 14 matches during the 2008 and 2009 seasons. Design The movements of 20 players from Super 14 rugby union team during the 2008 and 2009 seasons were video recorded. ...
Sánchez-Medina Luis - - 2011
PURPOSE:: To analyze the acute mechanical and metabolic response to resistance exercise protocols (REP) differing in the number of repetitions (R) performed in each set (S) with respect to the maximum predicted number (P). METHODS:: Over twenty-one exercise sessions separated by 48-72 h, eighteen strength-trained males, ten in bench press ...
Minett Geoffrey M - - 2011
PURPOSE:: To assess the effects of pre-cooling volume on neuromuscular function and performance in free-paced intermittent-sprint exercise in the heat. METHODS:: Ten male, team-sport athletes completed four randomized trials involving an 85-min free-paced intermittent-sprint exercise protocol in 33°C±33% relative humidity. Pre-cooling sessions included whole body (WB), head+hand (HH), head (H) ...
Spencer Matthew D - - 2011
This study sought to determine the effect of the pre-transition work rate (WR) and WR transition magnitude on the adjustment of pulmonary oxygen uptake (VO(2p) kinetics) in older men. Seven men (69 ± 5 years; mean ± SD) each performed 4-6 cycling transitions from 20 W to either a WR corresponding to 90% estimated lactate threshold ...
Chinkulprasert Chatchada - - 2011
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Moir Gavin L - - 2011
Moir, GL, Mergy, D, Witmer, CA, and Davis, SE. The acute effects of manipulating volume and load of back squats on countermovement vertical jump performance. J Strength Cond Res 25(X): 000-000, 2011-The acute effects of manipulating the volume and load of back squats on subsequent countermovement vertical jump performance were ...
Arseneau Eric - - 2011
Arseneau, E, Mekary, S, and Léger, LA. &OV0312;o2 requirements of boxing exercises. J Strength Cond Res 25(2): 348-359, 2011-The purpose of this study was to quantify the physiological requirements of various boxing exercises such as sparring, pad work, and punching bag. Because it was not possible to measure the oxygen ...
Cook David P - - 2011
Cook, DP, Mileva, KN, James, DC, Zaidell, LN, Goss, VG, and Bowtell, JL. Triaxial modulation of the acceleration induced in the lower extremity during whole-body vibration training: a pilot study. J Strength Cond Res 25(2): 298-308, 2011-The purpose of the present study was to quantify vibration transmissibility through the lower ...
Dalleck Lance C - - 2011
The purpose of this study was to develop an accurate metabolic equation for estimating steady-state oxygen consumption (VO2) during submaximal NuStep exercise. Adults (N = 40; M age = 64.0 yr., SD = 6.5; M height = 170.1 cm, SD = 9.1; M weight = 85.7 kg, SD = 19.9) ...
Otterman N M - - 2011
To investigate the feasibility and preliminary effectiveness of an exercise programme for patients with diabetic complications. In this pre-post design study, 22 patients from a diabetic foot outpatient clinic participated in a 12-week individualized exercise programme, consisting of aerobic and resistance exercise, with specific safety precautions. Feasibility was assessed on ...
Rutherford Derek J - - 2011
The objectives were, (i) to determine whether differences exist in relative activation amplitudes for participants with asymptomatic knees and participants with moderate medial compartment knee osteoarthritis during a series of maximal effort contractions and (ii) to determine whether maximum activations occurred on similar exercises for both groups. Sixty-eight participants with ...
Dallas George - - 2011
The present study focuses on two factors that may influence the accuracy and precision of a judge's evaluation of the angular deviation error in "inverted cross" (angle of the arms away from the horizontal axis). 16 Greek judges of competitive gymnastics participated in an evaluation of the magnitude of the ...
Vincent Graser Susan - - 2011
Researchers have noted both the utility and limitations of using pedometers to measure physical activity (PA). While these unobtrusive devices are widely accepted for their ability to measure accumulated PA, they have been criticized for their inability to measure exercise intensity. However, recent steps-per-minute (SPM) research provides reasonably accurate measures ...
Suprak David N - - 2011
Suprak, DN, Dawes, J, and Stephenson, MD. The effect of position on the percentage of body mass supported during traditional and modified push-up variants. J Strength Cond Res 25(2): 497-503, 2011-The push-up is a popular upper-extremity weight-bearing exercise. However, limited information is available regarding its effectiveness. Much of the past ...
Huang Juliet S - - 2011
Huang, JS, Pietrosimone, BG, Ingersoll, CD, Weltman, AL, and Saliba, SA. Sling exercise and traditional warm-up have similar effects on the velocity and accuracy of throwing. J Strength Cond Res 25(X): 000-000, 2011-Throwing is a complex motion that involves the entire body and often puts an inordinate amount of stress ...
Mizuno Masaki - - 2011
We examined the transfer function of autonomic heart rate (HR) control in anesthetized sedentary and exercise trained (16 weeks, treadmill for 1 h, 5 times/wk at 15m/min and 15° grade) rats for comparison to HR variability assessed in the conscious resting state. The transfer function from sympathetic stimulation to HR ...
Lee J K W - - 2011
There are no reported cases of exercise-associated hyponatremia (EAH) in tropical Asia. This study aimed to investigate the incidence of EAH at the on-site medical tent and fluid balance in long distance foot races in a warm and humid environment. Body mass was taken before and after the races (42-km ...
Thiel C - - 2011
The present study evaluated the reproducibility of tissue oxygenation in relation to oxygen consumption (VO (2)) across cycle exercise intensities in a test-retest design. 12 subjects (25.7±2.1 years; 24.7±1.9 kg · m (-2)) twice performed an incremental bicycle exercise protocol, while tissue oxygen saturation (StO (2)) in the vastus lateralis ...
Cirio Serena - - 2011
Background We evaluated the safety and efficacy of a new automatic O₂ regulator device (O₂ Flow Regulator) that titrates automatically the oxygen flow-rate using as a feedback a pulse oximeter to maintain patient's SaO₂ at a target level. Methods Eighteen subjects with chronic lung disease, on long-term oxygen therapy (LTOT) ...
Hunter Gary R - - 2011
PURPOSE:: Purpose of study is to determine whether quadriceps/patella and Achilles tendon length and flexibility of the knee extensors and plantar flexors, are related to walking and running economy. METHODS:: Twenty-one male distance runners were subjects. Quadriceps/patella and Achilles tendon length were measured by magnetic resonance imaging, body composition by ...
Osawa Takuya - - 2011
PURPOSE:: The aim of this study was to investigate the relationship between the attenuation point of muscle deoxygenation (APMD) and the electromyographic threshold (EMGT) during incremental cycling exercise under different fractions of inspired O2 (FIO2). METHODS:: Nine male subjects performed ramp cycling exercise tests (20W·min) to exhaustion under normoxic and ...
Duvnjak-Zaknich Daniel M - - 2011
PURPOSE:: This study examined the effects of acute caffeine ingestion on agility performance and decision-making accuracy following simulated team-sport exercise. METHODS:: Using a randomized, double-blinded, counter-balanced design, ten moderately trained male team-sport athletes ingested either caffeine (6 mg·kg) or placebo (dextrose) 60 min before completing an 80 min (4 × ...
Collett Johnny - - 2011
The most effective exercise dose has yet to be established for multiple sclerosis (MS). The aim of this study was to investigate the effect of different exercise intensities in people with MS. We completed a randomized comparator study of three cycling exercise intensities, with blinded assessment, was carried out in ...
Blacker Sam D - - 2011
Effects of a carbohydrate beverage on the physiological responses to load carriage were examined. Ten fit male participants (age: 28 ± 9 years, body mass: 81.5 ± 10.5 kg, VO(2max): 55.0 ± 5.5 mL kg(-1) min(-1)) completed two test conditions in random order, walking on a treadmill (6.5 km h(-1)) ...
Kipp Kristof - - 2011
Kipp, K, Harris, C, and Sabick, MB. Lower extremity biomechanics during weightlifting exercise vary across joint and load. J Strength Cond Res 25(x): 000-000, 2011-The purpose of this study was to determine the effect of load on lower extremity biomechanics during the pull phase of the clean. Kinematic and kinetic ...
Madden Molly C - - 2011
Recent efforts to establish a role for plasma matrix metalloproteinase-9 (MMP-9) as a marker of exercise-induced muscle damage have been inconsistent. Methodological and experimental design issues have contributed to confusion in this area. The purpose of this study was to use a damaging eccentric arm task to evaluate the relationship ...
de Groot Janke Frederike - - 2011
Background With emerging interest in exercise and lifestyle interventions for children and adolescents with spina bifida, there is a need for appropriate measurements in exercise testing. Objective The purpose of this study was to assess both reliability and agreement of maximal and submaximal exercise measures in "normal ambulatory" and "community ...
Ciurzyński Michał - - 2011
Background: In systemic sclerosis (SSc), changes in the lungs and pulmonary hypertension (PH) are complications most adversely affecting the prognosis. Given the availability of specific treatment, early diagnosis of PH is very important. Exercise echocardiography, by increasing the patient's cardiac output, makes it possible to identify patients with elevated pulmonary ...
Randell Aaron D - - 2011
The purpose of this study was to investigate the effect of instantaneous performance feedback (peak velocity) provided after each repetition of squat jump exercises over a 6-week training block on sport-specific performance tests. Thirteen professional rugby players were randomly assigned to 1 of 2 groups, feedback (n = 7) and ...
Ogawa Kishiko - - 2011
The endolysosome pathway has been proposed for secretion of heat shock protein (Hsp)72 with a regulatory role for extracellular adenosine triphosphate (ATP). Here, we tested the hypothesis that extracellular ATP mediates the increase in plasma Hsp72 after exercise. We measured plasma ATP Hsp72, cathepsin D, norepinephrine, free fatty acid, glucose, ...
Baskurt Oguz K - - 2011
Nitric oxide (NO) is accepted to be an important factor affecting the degree of vascular tone in various portions of the circulation. Until recently, research in this area has focused on endothelial cells as a NO source, and there is general agreement that: 1) the level of wall shear stress ...
Foroughi Nasim - - 2011
we hypothesised that high intensity progressive resistance training would improve lower limb dynamic alignment and function (lower knee adduction moment, increased muscle strength, and fewer knee osteoarthritis symptoms). women (n=54) with osteoarthritis in at least one knee were randomised into a 6-month resistance training or a sham-exercise program. The primary ...
Troy Karen L - - 2011
Purpose. To develop guidelines for proper exercise execution on a novel device and to recommend design changes to the device based on biomechanical data and user feedback. Method. Seven manual wheelchair users were instructed on proper exercise technique with a novel device, which allows a person to complete a seated row. Kinematics ...
Bullani Roberto - - 2011
Although physical activity is recommended in patients on maintenance hemodialysis (MHD), randomized controlled trials testing the effects of exercise in this population have given conflicting results. In general, aerobic exercises mostly failed to produce improvements in physical function, whereas resistance exercises, although less studied, appeared to be more promising. The ...
Negrini Stefano - - 2011
Bracing is an effective strategy for scoliosis treatment, but there is no consensus on the best type of brace, nor on the way in which it should act on the spine to achieve good correction. The aim of this paper is to present the family of SPoRT (Symmetric, Patient-oriented, Rigid, ...
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