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Eccentric exercise

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https://www.readbyqxmd.com/read/27900297/effects-of-lymphatic-drainage-and-local-cryo-exposition-regeneration-after-high-intensive-exercises
#1
Michael Behringer, Diana Jedlicka, Molly McCourt, Matthias Ring, Joachim Mester
BACKGROUND: Recovery from exercise and competition is important in sports medicine, particularly when rest periods are short. The objective is to determine the efficacy of cryo exposition (CRY) and manual lymphatic drainage (MLD) to hasten short term recovery of muscle performance after eccentric contractions. METHODS: In a randomized controlled trial, 30 healthy sport students (21 males, 9 females; age: 25.7±2.8 years) performed 4×20 eccentric contractions of knee extensors, followed by 30 min MLD, CRY, or rest (RST) under controlled laboratory environment...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27899894/moderate-load-eccentric-exercise-a-distinct-novel-training-modality
#2
REVIEW
Hans Hoppeler
Over the last 20 years a number of studies have been published using progressive eccentric exercise protocols on motorized ergometers or similar devices that allow for controlled application of eccentric loads. Exercise protocols ramp eccentric loads over an initial 3 weeks period in order to prevent muscle damage and delayed onset muscle soreness. Final training loads reach 400-500 W in rehabilitative settings and over 1200 W in elite athletes. Training is typically carried out three times per week for durations of 20-30 min...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27897404/doxorubicin-inhibits-muscle-inflammation-after-eccentric-exercise
#3
Sheng-Chih Huang, Jin-Fu Wu, Suchada Saovieng, Wei-Horng Chien, Ming-Fen Hsu, Xiao-Fei Li, Shin-Da Lee, Chih-Yang Huang, Chih-Yang Huang, Chia-Hua Kuo
BACKGROUND: Doxorubicin, a widely used anti-tumour drug, is known to cause muscle loss in cancer patients. METHODS: Following an acute dose of doxorubicin injection (2.5 mg/kg per body weight), we examined macrophage distribution in rat soleus muscle challenged by eccentric exercise (downhill running). Long-term doxorubicin treatment (one injection every 3 days) on muscle mass and survival were also determined. RESULTS: Under non-exercised condition, increased tumour necrosis factor (TNF)-alpha mRNA and decreased IL-10 mRNA were observed in soleus muscle of doxorubicin-treated rats, compared with saline-treated control rats...
October 10, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27893481/the-effect-of-exercise-induced-muscle-damage-after-a-bout-of-accentuated-eccentric-load-drop-jumps-and-the-repeated-bout-effect
#4
Lee A Bridgeman, Nicholas D Gill, Deborah K Dulson, Michael R McGuigan
Although previous studies have investigated exercise induced muscle damage (EIMD) after a bout of unloaded drop jumps (DJ) none have investigated the effects of accentuated eccentric load (AEL) DJs on EIMD. The purpose of this study was to investigate the effects of 30 and 50 AEL DJs on strength, jump performance, muscle soreness and blood markers. Eight resistance trained athletes participated in this study. In week 1 baseline countermovement jump (CMJ), squat jump (SJ), concentric and eccentric peak force (PF), creatine kinase (CK) and muscle soreness (SOR) were assessed...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27893478/loads-and-movement-speeds-dictate-differences-in-power-output-during-circuit-training
#5
Kirk B Roberson, Sean Chowdhari, Morgan White, Joseph F Signorile
Power training has become a common exercise intervention for improving muscle strength, power, and physical function, while reducing injury risk. Few studies, however, have evaluated acute load changes on power output during traditional resistance-training protocols. Therefore, the aim of this study was to quantify the effects of different loading patterns on power output during a single session of circuit resistance training (CRT). Nine males (age=19.4±0.9 y) and eleven females (age=20.6±1.6 y) completed three CRT protocols during separate testing sessions using seven pneumatic exercises...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27893476/comparison-of-muscle-involvement-and-posture-between-the-conventional-deadlift-and-a-walk-in-style-deadlift-machine
#6
Benjamin J Snyder, Courtney P Cauthen, Scott R Senger
The deadlift exercise is one of the most effective exercises for developing lower-body strength; however, technique errors can lead to low back injuries. The use of a 'walk-in' deadlift machine removes the weight bar by using a lever system with independent handles on either side of the body. Theoretically, this would allow alignment of the load with the center of gravity, encouraging a more upright torso and decreasing the involvement of the low back extensors. This study compared trunk angle, knee angle and electrical activity of key muscles between the conventional deadlift (CDL) and two foot positions (ball of foot or toe alignment) with pronated grip, (called BallPro and ToePro) of a walk-in deadlift machine among high-skilled and low-skilled lifters...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27884955/effect-of-exercise-induced-muscle-damage-on-vascular-function-and-skeletal-muscle-microvascular-deoxygenation
#7
Jacob T Caldwell, Garrett C Wardlow, Patrece A Branch, Macarena Ramos, Christopher D Black, Carl J Ade
This paper investigated the effects of unaccustomed eccentric exercise-induced muscle damage (EIMD) on macro- and microvascular function. We tested the hypotheses that resting local and systemic endothelial-dependent flow-mediated dilation (FMD) and microvascular reactivity would decrease, V˙O2max would be altered, and that during ramp exercise, peripheral O2 extraction, evaluated via near-infrared-derived spectroscopy (NIRS) derived deoxygenated hemoglobin + myoglobin ([HHb]), would be distorted following EIMD In 13 participants, measurements were performed prior to (Pre) and 48 h after a bout of knee extensor eccentric exercise designed to elicit localized muscle damage (Post)...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27865722/effect-of-sex-and-sporting-discipline-on-lv%C3%A2-adaptation-to-exercise
#8
Gherardo Finocchiaro, Harshil Dhutia, Andrew D'Silva, Aneil Malhotra, Alexandros Steriotis, Lynne Millar, Keerthi Prakash, Rajay Narain, Michael Papadakis, Rajan Sharma, Sanjay Sharma
OBJECTIVES: This study sought to investigate the effect of different types of exercise on left ventricular (LV) geometry in a large group of female and male athletes. BACKGROUND: Studies assessing cardiac adaptation in female and male athletes indicate that female athletes reveal smaller increases in LV wall thickness and cavity size compared with male athletes. However, data on sex-specific changes in LV geometry in athletes are scarce. METHODS: A total of 1,083 healthy, elite, white athletes (41% female; mean age 21...
November 11, 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27855131/patellar-tendinopathy-diagnosis-and-treatment
#9
David Figueroa, Francisco Figueroa, Rafael Calvo
Patellar tendinopathy is a common cause of pain in athletes' knees. Historically, it has been related to jumping sports, such as volleyball and basketball. Repetitive jumping generates a considerable load of energy in the extensor mechanism, leading to symptoms. The main pathophysiologic phenomenon in patellar tendinopathy is tendinosis, which is a degenerative disorder rather than an inflammatory disorder; therefore, the other popular term for this disease, tendinitis, is not appropriate. The nonsurgical treatment of patellar tendinopathy is focused on eccentric exercises and often has good results...
December 2016: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27854082/randomized-controlled-trial-comparing-the-effectiveness-of-the-ultrasound-guided-galvanic-electrolysis-technique-usget-versus-conventional-electro-physiotherapeutic-treatment-on-patellar-tendinopathy
#10
F Abat, J L Sánchez-Sánchez, A M Martín-Nogueras, J I Calvo-Arenillas, J Yajeya, R Méndez-Sánchez, J C Monllau, P E Gelber
BACKGROUND: Patellar tendinopathy has a high prevalence rate among athletes. Different therapeutic options can be found in the current literature, but none of them has been clearly established as the gold standard. The purpose of this study is to compare, in a randomized controlled trial, the clinical efficacy of eccentric exercise combined with either an ultrasound-guided galvanic electrolysis technique (USGET) or conventional electrophysiotherapy to treat patellar tendinopathy. METHODS: Sixty patients diagnosed with patellar tendinopathy were randomized into two groups...
December 2016: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/27845853/delayed-onset-muscle-soreness-temporal-assessment-with-quantitative-mri-and-shear-wave-ultrasound-elastography
#11
Christoph A Agten, Florian M Buck, Linda Dyer, Martin Flück, Christian W A Pfirrmann, Andrea B Rosskopf
OBJECTIVE: The objective of our study was to assess delayed-onset muscle soreness (DOMS) over time using quantitative MRI and shear-wave ultrasound (US) elastography. SUBJECTS AND METHODS: Five male (mean age ± SD, 39.6 ± 4.6 years) and five female (30.6 ± 13.5 years) volunteers underwent 1.5-T MRI before and after (15 minutes, 1 day, 3 days, 7 days) performing unilateral eccentric resistance exercise of the elbow flexor muscles. The MRI examinations included fluid-sensitive, DWI, and diffusion-tensor imaging sequences of the distal upper arm...
November 15, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27845504/eccentric-exercise-in-lower-limb-tendinopathies-still-a-long-way-to-go
#12
Antonio Frizziero, Filippo Vittadini, Augusto Fusco, Arrigo Giombini, Giuseppe Gasparre, Stefano Masiero
No abstract text is available yet for this article.
November 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27844051/the-influence-of-methylsulfonylmethane-on-inflammation-associated-cytokine-release-before-and-following-strenuous-exercise
#13
Mariè van der Merwe, Richard J Bloomer
Background. Inflammation is associated with strenuous exercise and methylsulfonylmethane (MSM) has been shown to have anti-inflammatory properties. Methods. Physically active men were supplemented with either placebo or MSM (3 grams per day) for 28 days before performing 100 repetitions of eccentric knee extension exercise. Ex vivo and in vitro testing consisted of evaluating cytokine production in blood (whole blood and isolated peripheral blood mononuclear cells (PBMCs)) exposed to lipopolysaccharide (LPS), before and through 72 hours after exercise, while in vivo testing included the evaluation of cytokines before and through 72 hours after exercise...
2016: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://www.readbyqxmd.com/read/27843949/low-energy-extracorporeal-shock-wave-therapy-in-the-treatment-of-chronic-insertional-achilles-tendinopathy-a-case-series
#14
Vito Pavone, Luca Cannavò, Antonio Di Stefano, Gianluca Testa, Luciano Costarella, Giuseppe Sessa
Introduction. We report the results of a series of 40 patients with chronic insertional Achilles tendinopathy treated with low-energy ESWT after the failure of a 3-month program of eccentric exercises alone. Methods and Materials. 40 patients, 28 (70%) males and 12 (30%) females, were treated between January and December 2014. All patients were previously treated with only eccentric exercises for a 3-month period. The treatment protocol included 4 sessions of ESWT with a 2-week interval, from 800 shots in each one (4 Hz, 14 KeV), together with eccentric exercises...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27834609/a-treatment-based-classification-algorithm-to-treat-achilles-tendinopathy-an-exploratory-case-series
#15
Patti Syvertson, Emily Dietz, Monica Matocha, Janet McMurray, Russell Baker, Alan Nasypany, Don Reordan, Michael Paddack
CONTEXT: Achilles tendinopathy is relatively common in both the general and athletic populations. The current gold standard for the treatment of Achilles tendinopathy is eccentric exercise, which can be painful and time consuming. While there is limited research on indirect treatment approaches, it has been proposed that tendinopathy patients do respond to indirect approaches in fewer treatments without provoking pain. OBJECTIVE: The purpose of this study was to determine the effectiveness of utilizing a Treatment Based Classification (TBC) algorithm as a strategy for classifying and treating patients diagnosed with Achilles tendinopathy...
November 11, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27824689/eccentric-cycling-a-promising-modality-for-patients-with-chronic-heart-failure
#16
Lauren C Chasland, Daniel J Green, Andrew J Maiorana, Kazunori Nosaka, Andrew Haynes, Lawrence Dembo, Louise H Naylor
INTRODUCTION: Chronic heart failure (CHF) is characterized by dyspnea and poor exercise tolerance, which decreases aerobic capacity (V˙O2peak), a measure strongly correlated with quality of life and mortality. In healthy populations, eccentric (ECC) cycling can be performed at a lower oxygen demand for matched workload, compared to concentric (CON) cycling, but few studies have previously investigated ECC cycling in CHF. We hypothesized that, when matched for external workload (Watts), an ECC cycling bout would be performed at a lower cardiorespiratory load (V˙O2) than CON in patients with CHF...
November 7, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27824237/focused-extracorporeal-shock-wave-therapy-combined-with-supervised-eccentric-training-for-supraspinatus-calcific-tendinopathy
#17
Ettore Carlisi, Claudio Lisi, Anna Dall'angelo, Serena Monteleone, Vincenza Nola, Carmine Tinelli, Elena Dalla Toffola
BACKGROUND: Extracorporeal shock wave therapy is effective in reducing shoulder pain and improving function in calcific supraspinatus tendinopathy. Eccentric exercise has been introduced as an effective treatment choice for Achilles tendinopathy, but poor evidence exists about its role in the treatment of rotator cuff tendinopathy. AIM: To investigate if adding a supervised eccentric training of the shoulder abductor muscles could improve the outcome of extracorporeal shock wave therapy...
November 8, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27823901/comparison-of-effects-of-eccentric-training-eccentric-concentric-training-and-eccentric-concentric-training-combined-with-isometric-contraction-in-the-treatment-of-lateral-elbow-tendinopathy
#18
Dimitrios Stasinopoulos, Ioannis Stasinopoulos
STUDY DESIGN: RCT. INTRODUCTION: Lateral elbow tendinopathy is a common clinical condition. eccentric exercises. eccentric-concentric loading and, isometric exercises are indicated to reduce and manage tendon pain. PURPOSE OF THE STUDY: To compare the effectiveness of eccentric training, eccentric-concentric training, and eccentric-concentric training combined with isometric contraction in the treatment of lateral elbow tendinopathy. METHODS: A randomized clinical trial was carried out in a rheumatology and rehabilitation center...
November 4, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27820725/training-strategies-to-improve-muscle-power-is-olympic-style-weightlifting-relevant
#19
Christian Helland, Eirik Hole, Erik Iversen, Monica Charlotte Olsson, Olivier Seynnes, Paul Andre Solberg, Gøran Paulsen
INTRODUCTION: This efficacy study investigated the effects of (1) Olympic-style weightlifting (OWL), (2) motorized strength and power training (MSPT), and (3) free weight strength and power training (FSPT) on muscle power. METHODS: Thirty-nine young athletes (20±3 yr.; ice hockey, volleyball and badminton) were randomized into the three training groups. All groups participated in 2-3 sessions/week for 8 weeks. The MSPT and FSPT groups trained using squats (two legs and single leg) with high force and high power, while the OWL group trained using clean and snatch exercises...
November 3, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27807525/longer-application-of-kinesio-taping-would-be-beneficial-for-exercise-induced-muscle-damage
#20
Jooyoung Kim, Seunghwan Kim, Joohyung Lee
Kinesio taping (KT) has been widely used to prevent muscle pain and to improve range of motion in clinical settings. However, no previous research has examined how long KT should be applied to muscle following damaging exercise. The aim of this study was to investigate the effect of the duration of KT application on markers of muscle damage following eccentric exercise. Thirty-two male subjects participated in the study and were randomly assigned to one of the following groups: control (CON), KT-post, KT-30 min, or KT-24 hr...
October 2016: Journal of Exercise Rehabilitation
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