keyword
MENU ▼
Read by QxMD icon Read
search

Eccentric training

keyword
https://www.readbyqxmd.com/read/28211820/effectiveness-and-feasibility-of-eccentric-and-task-oriented-strength-training-in-individuals-with-stroke
#1
Mireille A Folkerts, Juha M Hijmans, Anne L Elsinghorst, Yvon Mulderij, Alessio Murgia, Rienk Dekker
BACKGROUND: Strength training can increase function in individuals with stroke. However it is unclear which type of strength training is most effective and feasible. OBJECTIVE: To assess the effect and feasibility of an intervention combining eccentric and task-oriented strength training in individuals with chronic stroke. METHODS: Eleven participants were randomly assigned to a group first receiving four weeks of eccentric strength training and then four weeks of task-oriented strength training (EST-TOST) or vice versa (TOST-EST)...
February 15, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28193999/human-skeletal-muscle-plasmalemma-alters-its-structure-to-change-its-ca-2-handling-following-heavy-load-resistance-exercise
#2
Tanya R Cully, Robyn M Murphy, Llion Roberts, Truls Raastad, Robert G Fassett, Jeff S Coombes, Isuru D Jayasinghe, Bradley S Launikonis
High-force eccentric exercise results in sustained increases in cytoplasmic Ca(2+) levels ([Ca(2+)]cyto), which can cause damage to the muscle. Here we report that a heavy-load strength training bout greatly alters the structure of the membrane network inside the fibres, the tubular (t-) system, causing the loss of its predominantly transverse organization and an increase in vacuolation of its longitudinal tubules across adjacent sarcomeres. The transverse tubules and vacuoles displayed distinct Ca(2+)-handling properties...
February 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/28192092/peripheral-oculomotor-training-in-individuals-with-healthy-visual-systems-effects-of-training-and-training-transfer
#3
Dylan Rose, Peter Bex
Individuals with pathological or simulated central visual field loss can be trained to use a preferred retinal locus (PRL) as a substitute for their non-functioning fovea. The functional benefits of a stable PRL are well documented, but little is known about oculomotor adaptations during PRL acquisition or transfer of training to another location in response to real or simulated disease progression. In this study, eight normally-sighted observers were trained to use a pseudo-PRL (pPRL) at one of two locations by guiding an eccentrically placed, gaze-contingent ring over a fixation target...
February 9, 2017: Vision Research
https://www.readbyqxmd.com/read/28177702/modulation-of-mitochondrial-biomarkers-by-intermittent-hypobaric-hypoxia-and-aerobic-exercise-after-eccentric-exercise-in-trained-rats
#4
David Rizo-Roca, Juan Gabriel Ríos-Kristjánsson, Cristian Núñez-Espinosa, Estela Santos-Alves, José Magalhães, António Ascensão, Teresa Pagès, Ginés Viscor, Joan Ramon Torrella
Unaccustomed eccentric contractions induce muscle damage, calcium homeostasis disruption and mitochondrial alterations. Since exercise and hypoxia are known to modulate mitochondrial function, we aimed to analyze the effects on eccentric exercise-induced muscle damage (EEIMD), in trained rats, of two recovery protocols based on: 1) intermittent hypobaric hypoxia (IHH) and 2) IHH followed by exercise. The expression of biomarkers related to mitochondrial biogenesis, dynamics, oxidative stress and bioenergetics was evaluated...
February 2, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28153942/divergent-endothelial-function-but-similar-platelet-microvesicle-responses-following-eccentric-and-concentric-cycling-at-a-similar-aerobic-power-output
#5
Mark Rakobowchuk, Ophélie Ritter, Eurico Nestor Wilhelm, Laurie Isacco, Malika Bouhaddi, Bruno Degano, Nicolas Tordi, Laurent Mourot
Endothelial function and microvesicle concentration changes after acute bouts of continuous eccentric exercise have not been assessed previously nor compared to concentric exercise at similar aerobic power outputs. This method of training may be useful amongst some clinical populations, but acute responses are not well described. As such, twelve healthy males completed two experimental sessions of either 45 minutes of eccentric or concentric cycling at a matched aerobic power output below the ventilatory threshold...
February 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28152673/effects-of-adding-a-weekly-eccentric-overload-training-session-on-strength-and-athletic-performance-in-team-handball-players
#6
Rafael Sabido, Jose Luis HernáNdez-Davó, Javier Botella, Angel Navarro, Julio Tous-Fajardo
To investigate the influence of adding a weekly eccentric-overload training (EOT) session in several athletic performance's tests, 18 team-handball players were assigned either to an EOT (n = 11) or a Control (n = 7) group. Both groups continued to perform the same habitual strength training, but the EOT group added one session/week during a 7-week training programme consisting of four sets of eight repetitions for the bilateral half-squat and unilateral lunge exercises. The test battery included handball throwing velocity, maximum dynamic strength (1RM), countermovement jump (CMJ), 20 m sprint, triple hop for distance, and eccentric/concentric power in both the half-squat and lunge exercises...
February 2, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28151781/acute-effects-of-eccentric-overload-on-concentric-front-squat-performance
#7
Cameron N Munger, David C Archer, Whitney D Leyva, Megan A Wong, Jared W Coburn, Pablo B Costa, Lee E Brown
Eccentric overload is used to enhance performance. The purpose of this study was to investigate the acute effects of eccentric overload on concentric front squat performance. Twenty resistance-trained males (age=23.80±1.82yrs, ht=176.95±5.21cm, mass=83.49±10.43kg, 1 Repetition Maximum [1RM] front squat=131.02±21.32kg) volunteered. A dynamic warm-up and warm-up sets of front squat were performed. Eccentric hooks were added to the barbell. They descended for 3 seconds, until eccentric hooks released, and performed the concentric phase as fast as possible...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28149740/surgical-technique-jumper-s-knee-arthroscopic-treatment-of-chronic-tendinosis-of-the-patellar-tendon
#8
Matthias Brockmeyer, Alexander Haupert, Dieter Kohn, Olaf Lorbach
Chronic patellar tendinosis (jumper's knee) is a common problem among athletes. Conservative treatment is successful in most of the cases including, among others, the use of nonsteroidal anti-inflammatory drugs, local cryotherapy, eccentric muscle training, limitation of sports activity, and local infiltration. In approximately 10% of conservatively treated patients, conservative treatment fails and surgery is required. Different open and arthroscopic surgical techniques have been described in the literature...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28149397/optimizing-post-activation-potentiation-for-explosive-activities-in-competitive-sports
#9
Artur Gołaś, Adam Maszczyk, Adam Zajac, Kazimierz Mikołajec, Petr Stastny
Post activation potentiation (PAP) has shown improved performance during movements requiring large muscular power output following contractions under near maximal load conditions. PAP can be described as an acute enhancement of performance or an enhancement of factors determining an explosive sports activity following a preload stimulus. In practice, PAP has been achieved by complex training, which involves a combination of a heavy loaded exercise followed by a biomechanically similar explosive activity, best if specific for a particular sport discipline...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149364/evaluating-injury-risk-in-first-and-second-league-professional-portuguese-soccer-muscular-strength-and-asymmetry
#10
Alberto Carvalho, Scott Brown, Eduardo Abade
Strength imbalances between the hamstrings and quadriceps are an essential predictor for hamstring strain in soccer. The study aimed to investigate and compare the muscle strength imbalances of professional soccer players of different performance levels. One hundred and fifty nine senior male professional soccer players from first (n = 75) and second league (n = 84) Portuguese clubs participated in this study. Muscle strength was evaluated with a REV9000 isokinetic dynamometer. Maximal peak torque data were used to calculate quadriceps and hamstrings strength during concentric and eccentric actions, bilateral asymmetry, conventional strength ratios and dynamic control ratios...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28132005/shock-wave-therapy-associated-with-eccentric-strengthening-versus-isolated-eccentric-strengthening-for-achilles-insertional-tendinopathy-treatment-a-double-blinded-randomised-clinical-trial-protocol
#11
Nacime Salomão Barbachan Mansur, Flávio Faloppa, João Carlos Belloti, Sheila J McNeill Ingham, Fabio Teruo Matsunaga, Paulo Roberto Dias Dos Santos, Bruno Schiefer Dos Santos, Oreste Lemos Carrazzone, Gabriel Peixoto, Bruno Takeshi Aoyama, Marcel Jun Sugawara Tamaoki
BACKGROUND: There is no consensus regarding the treatment of Achilles insertional tendinopathies. Eccentric training remains the main choice in the conservative treatment of this illness; however, the good results in the management of non-insertional Achilles tendinopathy were not replicated in the insertional condition. Low energy shock wave therapy has been described as an alternative to these patients, but has yet to be empirically tested. HYPOTHESIS: Shock wave therapy, adjunctive to the eccentric strengthening protocol, will improve measures of pain and function...
January 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28117249/downhill-exercise-training-in-monocrotaline-injected-rats-effects-on-echocardiographic-and-haemodynamic-variables-and-survival
#12
Irina Enache, Fabrice Favret, Stéphane Doutreleau, Paola Goette Di Marco, Anne-Laure Charles, Bernard Geny, Anne Charloux
BACKGROUND: Eccentric exercise training has been shown to improve muscle force strength without excessive cardiovascular stress. Such an exercise modality deserves to be tested in pulmonary arterial hypertension. AIM: We aimed to assess the effects of an eccentric training modality on cardiac function and survival in an experimental monocrotaline-induced model of pulmonary arterial hypertension with right ventricular dysfunction. METHODS: Forty rats were randomly assigned to one of four groups: 40mg/kg monocrotaline-injected sedentary rats; 40mg/kg monocrotaline-injected eccentric-trained rats; sedentary control rats; or eccentric-trained control rats...
January 20, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28110807/treatment-options-for-patellar-tendinopathy-a%C3%A2-systematic-review
#13
REVIEW
Joshua S Everhart, Devon Cole, John H Sojka, John D Higgins, Robert A Magnussen, Laura C Schmitt, David C Flanigan
PURPOSE: To compare the efficacy of common invasive and noninvasive patellar tendinopathy (PT) treatment strategies. METHODS: A systematic search was performed in PubMed, Google Scholar, CINAHL, UptoDate, Cochrane Reviews, and SPORTDiscus. Fifteen studies met the following inclusion criteria: (1) therapeutic outcome trial for PT, and (2) Victorian Institute of Sports Assessment was used to assess symptom severity at follow-up. Methodological quality and reporting bias were evaluated with a modified Coleman score and Begg's and Egger's tests of bias, respectively...
January 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28108648/reduced-firing-rates-of-high-threshold-motor-units-in-response-to-eccentric-overload
#14
Tom G Balshaw, Madhu Pahar, Ross Chesham, Lewis J Macgregor, Angus M Hunter
Acute responses of motor units were investigated during submaximal voluntary isometric tasks following eccentric overload (EO) and constant load (CL) knee extension resistance exercise. Ten healthy resistance-trained participants performed four experimental test sessions separated by 5 days over a 20 day period. Two sessions involved constant load and the other two used eccentric overload. EO and CL used both sessions for different target knee eccentric extension phases; one at 2 sec and the other at 4 sec...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28074913/auditory-localisation-biases-increase-with-sensory-uncertainty
#15
Sara E Garcia, Pete R Jones, Gary S Rubin, Marko Nardini
Psychophysical studies have frequently found that adults with normal hearing exhibit systematic errors (biases) in their auditory localisation judgments. Here we tested (i) whether systematic localisation errors could reflect reliance on prior knowledge, as has been proposed for other systematic perceptual biases, and (ii) whether auditory localisation biases can be reduced following training with accurate visual feedback. Twenty-four normal hearing participants were asked to localise the position of a noise burst along the azimuth before, during, and after training with visual feedback...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28052266/development-of-a-normative-database-for-multifocal-electroretinography-in-the-context-of-a-multicenter-clinical-trial
#16
Sílvia Simão, Miguel Ângelo Costa, Jennifer K Sun, José Cunha-Vaz, Rafael Simó
PURPOSE: The aim of this study is to present the largest normative database using multifocal electroretinography (mfERG) in the context of a multicenter clinical trial. METHODS: This investigational study included 156 eyes from 78 Caucasian subjects aged 45-70 years without known ophthalmic disease or diabetes mellitus; the subjects were recruited from 11 clinical sites in the setting of the EUROCONDOR project. Standardized mfERG acquisition (103 hexagons per eye) was established based on the International Society of Clinical Electrophysiology in Vision...
2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28039281/association-of-rate-dependent-conduction-block-between-eccentric-coronary-sinus-to-left-atrial-connections-with-inducible-atrial-fibrillation-and-flutter
#17
Dong Huang, Joseph E Marine, Jing-Bo Li, Tarek Zghaib, Esra Gucuk Ipek, Sunil Sinha, David D Spragg, Hiroshi Ashikaga, Ronald D Berger, Hugh Calkins, Saman Nazarian
BACKGROUND: We sought to describe the prevalence and variability of coronary sinus (CS) and left atrial (LA) myocardium connections, their susceptibility to rate-dependent conduction block, and association with atrial fibrillation (AF) and flutter induction. METHODS AND RESULTS: The study cohort included 30 consecutive AF patients (age 63.3±10.5 years, 63% male). Multipolar catheters were positioned in the CS, high right atrium (HRA), and LA parallel to and near the CS...
January 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28012598/mechanisms-underpinning-protection-against-eccentric-exercise-induced-muscle-damage-by-ischemic-preconditioning
#18
Alexander Franz, Michael Behringer, Kazunori Nosaka, Bettina Alexandra Buhren, Holger Schrumpf, Constantin Mayer, Christoph Zilkens, Moritz Schumann
Eccentric exercise training is effective for increasing muscle mass and strength, and improving insulin sensitivity and blood lipid profiles. However, potential muscle damage symptoms such as prolonged loss of muscle function and delayed onset of muscle soreness may restrict the use of eccentric exercise, especially in clinical populations. Therefore, strategies to reduce eccentric exercise-induced muscle damage (EIMD) are necessary, and an extensive number of scientific studies have tried to identify potential intervention modalities to perform eccentric exercises without adverse effects...
January 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28011412/electromyographic-analysis-of-muscle-activation-during-pull-up-variations
#19
James A Dickie, James A Faulkner, Matthew J Barnes, Sally D Lark
This study sought to identify any differences in peak muscle activation (EMGPEAK) or average rectified variable muscle activation (EMGARV) during supinated grip, pronated grip, neutral grip and rope pull-up exercises. Nineteen strength trained males (24.9±5y; 1.78±0.74m; 81.3±11.3kg; 22.7±2.5kgm(-2)) volunteered to participate in the study. Surface electromyography (EMG) was collected from eight shoulder-arm-forearm complex muscles. All muscle activation was expressed as a percentage of maximum voluntary isometric contraction (%MVIC)...
February 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27990226/the-effects-of-eccentric-velocity-based-training-on-strength-and-power-in-collegiate-athletes
#20
Samantha M Dolezal, Derek L Frese, Tamra L Llewellyn
The purpose of this study was to determine if combining velocity-based training with eccentric focus (VEB) and velocity-based training (VBT) results in power and strength gains. Nineteen men and women collegiate track and field athletes participated in this study. The subjects completed a 12-week intervention with either a VEB program or a VBT program. To determine the effectiveness of each program, the subjects completed four exercise tests before and after the training period: vertical jump, medicine ball put test, 1RM projected bench press and 1RM projected squat...
2016: International Journal of Exercise Science
keyword
keyword
40249
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"