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https://www.readbyqxmd.com/read/28636435/effects-of-a-contrast-training-programme-on-jumping-sprinting-and-agility-performance-of-prepubertal-basketball-players
#1
Pedro Ángel Latorre Román, Francisco Javier Villar Macias, Felipe García Pinillos
The purpose of this study was to examine the effects of a 10 week contrast training (CT) programme (isometric + plyometric) on jumping, sprinting abilities and agility performance in prepubertal basketball players. Fifty-eight children from a basketball academy (age: 8.72 ± 0.97 years; body mass index: 17.22 ± 2.48 kg/m(2)) successfully completed the study. Participants were randomly assigned to experimental groups (EG, n = 30) and control groups (CG, n = 28). The CT programme was included in the experimental group's training sessions - twice a week - as part of their usual weekly training regime...
June 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28631257/the-validity-and-responsiveness-of-isometric-lower-body-multi-joint-tests-of-muscular-strength-a-systematic-review
#2
REVIEW
David Drake, Rodney Kennedy, Eric Wallace
BACKGROUND: Researchers and practitioners working in sports medicine and science require valid tests to determine the effectiveness of interventions and enhance understanding of mechanisms underpinning adaptation. Such decision making is influenced by the supportive evidence describing the validity of tests within current research. The objective of this study is to review the validity of lower body isometric multi-joint tests ability to assess muscular strength and determine the current level of supporting evidence...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28625710/effect-of-an-individualised-physical-exercise-program-on-lipid-profile-in-sedentary-patients-with-cardiovascular-risk-factors
#3
Francisco Javier Rubio Pérez, Luis Franco Bonafonte, Daiana Ibarretxe Guerediaga, Maria Pilar Oyon Belaza, Paola Ugarte Peyron
Physical exercise has become in an important tool in the reduction of cardiovascular risk. OBJECTIVES: To evaluate the effectiveness of an unsupervised physical exercise program that on the physical condition and the lipid profile. METHOD: The final sample included 49 sedentary men and women, who were non-smokers, with dyslipidaemia, overweight, and type1 obesity. The 4-month program included walking for 30-60minutes every day, and for three days a week, 30minutes of cycling at an intensity of 40-60% of maximum functional capacity, as well as isometric abdominals and static stretching...
June 15, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28623713/indirect-sinusoidal-vibrations-induces-an-acute-increase-in-explosive-strength
#4
Leandro V de Paula, Pedro V S Moreira, Rudolf Huebner, Leszek A Szmuchrowski
The purpose of this study was to examine the acute effect of indirect vibration on neuromuscular responses and fatigue resistance (electromyographic activity - EMG and force) during isometric exercise. Nineteen healthy men (age=22.4±2.7years; body mass=76.4±12.9kg, height=175±6.7cm) performed isometric elbow flexion exercises in three experimental treatments: only isometric exercise (control - CON); isometric exercise with the addition of sinusoidal vibrations (SVE1; frequency=20Hz, displacement=3.55±0...
June 14, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28622156/aerobic-versus-isometric-handgrip-exercise-in-hypertension-a-randomized-controlled-trial
#5
Nikolaos Pagonas, Stergios Vlatsas, Frederic Bauer, Felix S Seibert, Walter Zidek, Nina Babel, Peter Schlattmann, Timm H Westhoff
OBJECTIVES: Aerobic dynamic exercise reduces blood pressure (BP) and is broadly recommended by current American and European hypertension guidelines. Isometric exercise is currently not recommended, since data from only a few studies are available. We compare for the first time the effects of isometric handgrip training and aerobic exercise in a randomized controlled trial. METHODS: A total of 75 hypertensive patients were randomized to one of the following 12-week programmes: Isometric handgrip training five times weekly (two contractions of 2 min at 30% of maximal power with each arm); 'Sham-handgrip training' five times weekly (two contractions of 2 min at 5% of maximal power with each arm); Aerobic exercise training of 30 min three to five times per week...
June 15, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28616033/exercise-induced-muscle-fatigue-in-the-unaffected-knee-joint-and-its-influence-on-postural-control-and-lower-limb-kinematics-in-stroke-patients
#6
Sun Wook Park, Sung Min Son, Na Kyung Lee
This study aimed to investigate the effects of exercise-induced muscle fatigue in the unaffected knee joint on postural control and kinematic changes in stroke patients. Forty participants (20 stroke patients, 20 age-matched healthy participants) were recruited. To induce fatigue, maximum voluntary isometric contractions were performed in the unaffected knee joint in a Leg Extension Rehab exercise machine using the pneumatic resistance. We measured static and dynamic balance and lower-limb kinematics during gait...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28614793/a-single-dose-of-cannabidiol-reduces-blood-pressure-in-healthy-volunteers-in-a-randomized-crossover-study
#7
Khalid A Jadoon, Garry D Tan, Saoirse E O'Sullivan
BACKGROUND: Cannabidiol (CBD) is a nonpsychoactive phytocannabinoid used in multiple sclerosis and intractable epilepsies. Preclinical studies show CBD has numerous cardiovascular benefits, including a reduced blood pressure (BP) response to stress. The aim of this study was to investigate if CBD reduces BP in humans. METHODS: Nine healthy male volunteers were given 600 mg of CBD or placebo in a randomized, placebo-controlled, double-blind, crossover study. Cardiovascular parameters were monitored using a finometer and laser Doppler...
June 15, 2017: JCI Insight
https://www.readbyqxmd.com/read/28611110/the-liftmor-m-lifting-intervention-for-training-muscle-and-osteoporosis-rehabilitation-for-men-trial-protocol-for-a-semirandomised-controlled-trial-of-supervised-targeted-exercise-to-reduce-risk-of-osteoporotic-fracture-in-older-men-with-low-bone-mass
#8
Amy T Harding, Benjamin K Weeks, Steven L Watson, Belinda R Beck
INTRODUCTION: The primary aim of the proposed study is to examine the efficacy of an 8-month supervised, high-intensity progressive resistance training and impact loading programme in comparison with a supervised machine-based isometric exercise training programme using the bioDensity system in older men with low bone mass. We will also determine the safety and acceptability of each exercise training mode. Intervention group responses will be compared with those of a self-selected, non-randomised control sample of sex-matched and age-matched men who will follow their usual lifestyle activities for 8 months...
June 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28609641/flexibility-training-and-the-repeated-bout-effect-priming-interventions-prior-to-eccentric-training-of-the-knee-flexors
#9
Andrew W Leslie, Joel L Lanovaz, Justin W Andrushko, Jonathan P Farthing
Both the repeated bout effect and increased flexibility have been linked to reduced muscle damage, fatigue and strength loss after intense eccentric exercise. Our purpose was to compare the eccentric training (ECC) response after first priming the muscles with either static flexibility training or a single intense bout of eccentric exercise. Twenty-five participants were randomly assigned to flexibility training (F;n=8; 3x/week; 30 min/day), a single-bout of intense eccentric exercise (SB;n=9), or no intervention (control [C];n=8) during a 4-week priming phase, prior to completing a subsequent 4-week period of eccentric training of the knee flexors...
June 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28603874/impact-of-rest-duration-on-achilles-tendon-structure-and-function-following-isometric-training
#10
C M Waugh, T Alktebi, A de Sa, A Scott
Intervention programs are often sought to strengthen the Achilles tendon (AT) due to its high injury rate. Long rest periods between loading cycles have been found to increase collagen synthesis by tenocytes, suggesting rest duration may be important for tendon adaptation in vivo, however exercise programs comparing long and short rest duration have not been directly compared. Fourteen adults completed a 12-week progressive training intervention; training sessions consisted of 5 x 10 isometric plantarflexion contractions each of 3-s duration performed at 90% of MVC three times weekly...
June 12, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28597708/balance-and-walking-performance-are-improved-after-resistance-and-aerobic-training-in-persons-with-chronic-stroke
#11
Caroline Lund, Ulrik Dalgas, Therese Koops Grønborg, Henning Andersen, Kåre Severinsen, Morten Riemenschneider, Kristian Overgaard
PURPOSE: To investigate the effect of different types of physical training on balance performance and whether improved balance correlates with improved walking performance. METHODS: Forty eight participants with chronic stroke were randomly assigned to aerobic training on cycle ergometer (AT-group), resistance training of the lower extremities (RT-group), or sham training of upper extremities (ST-group). Participants exercised 3 d/week for 12 weeks. Balance (Berg Balance Scale), peak oxygen uptake rate, isometric knee extensor strength, maximal gait speed, and 6 minute walk test were measured at baseline and after 12 weeks...
June 9, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28593096/emg-of-shoulder-muscles-during-reactive-isometric-elastic-resistance-exercises
#12
Michael J Mullaney, Christine Perkinson, Ian Kremenic, Timothy F Tyler, Karl Orishimo, Christopher Johnson
BACKGROUND: Traditionally, shoulder isometrics are introduced in the early stages of shoulder rehabilitation. A patient's isometric torque output is based on a subjective perception of force generation. By utilizing elastic resistance elongation (strain) to standardize force output, clinicians could prescribe shoulder therapeutic isometrics based on % maximum voluntary contraction (%MVC). PURPOSE/HYPOTHESIS: The purpose of this study was to measure electromyographic (EMG) activity and determine the %MVC during shoulder flexion, external rotation and abduction isometrics at varying lengths of TheraBand® elastic resistance...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28593090/dynamic-hip-adduction-abduction-and-abdominal-exercises-from-the-holmich-groin-injury-prevention-program-are-intense-enough-to-be-considered-strengthening-exercises-a-cross-sectional-study
#13
Kasper Krommes, Thomas Bandholm, Markus D Jakobsen, Lars L Andersen, Andreas Serner, Per Hölmich, Kristian Thorborg
BACKGROUND: Training intensity is an important variable in strength training and above 80% of one repetition maximum is recommended for promoting strength for athletes. Four dynamic and two isometric on-field exercises are included in the Hölmich groin-injury prevention study that initially failed to show a reduction in groin injuries in soccer players. It has been speculated that exercise-intensity in this groin-injury prevention program was too low to induce the strength gains necessary to protect against groin-related injuries...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28592458/localized-and-systemic-variations-in-central-motor-drive-at-different-local-skin-and-muscle-temperatures
#14
Alex Lloyd, Lewis Picton, Margherita Raccuglia, Simon Hodder, George Havenith
This study investigated the ability to sustain quadriceps central motor drive while subjected to localized heat and metaboreceptive feedback from the contralateral leg. Eight active males each completed two counter-balanced trials, in which muscle temperature (Tm) of a single-leg (TEMP-LEG) was altered to 29.4 (COOL) or 37.6°C (WARM), while the contralateral leg (CL-LEG) remained thermoneutral; 35.3 and 35.2°C Tm in COOL and WARM respectively. To activate metaboreceptive feedback, participants first performed one 120-s isometric maximal voluntary contraction (MVC) of the knee extensors in the TEMP-LEG, immediately followed by post-exercise muscle ischemia (PEMI) via femoral blood flow occlusion...
June 7, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28585394/wii-based-exercise-program-to-improve-physical-fitness-motor-proficiency-and-functional-mobility-in-adults-with-down-syndrome
#15
V Silva, C Campos, A Sá, M Cavadas, J Pinto, P Simões, S Machado, E Murillo-Rodríguez, N Barbosa-Rocha
BACKGROUND: People with Down syndrome (DS) usually display reduced physical fitness (aerobic capacity, muscle strength and abnormal body composition), motor proficiency impairments (balance and postural control) and physical functional limitations. Exergames can be an appealing alternative to enhance exercise engagement and compliance, whilst improving physical fitness and motor function. This study aims to analyse the effects of a Wii-based exercise program on physical fitness, functional mobility and motor proficiency of adults with DS...
June 6, 2017: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/28581367/carbohydrate-mouth-rinse-improves-morning-high-intensity-exercise-performance
#16
Neil D Clarke, Scott Hammond, Evangelos Kornilios, Peter D Mundy
Oral carbohydrate (CHO) rinsing has been demonstrated to provide beneficial effects on exercise performance of durations of up to one hour. The aim of the present study was to investigate the effects of CHO mouth rinsing on morning high-intensity exercise performance. Following institutional ethical approval and familiarisation, 12 healthy males (mean ± SD age: 23 ± 3 years, height: 175.5 ± 7.4 cm, body mass: 75.4 ± 7.5 kg) participated in this study. Countermovement jump (CMJ) height, isometric mid-thigh pull peak force, 10 m sprint time and bench press and back squat repetitions to failure were assessed following CHO and placebo (PLA) rinsing or a control condition (CON)...
June 5, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28579765/effects-of-a-giant-exercising-board-game-intervention-on-ambulatory-physical-activity-among-nursing-home-residents-a-preliminary-study
#17
Alexandre Mouton, Nicolas Gillet, Flore Mouton, Dave Van Kann, Olivier Bruyère, Marc Cloes, Fanny Buckinx
PURPOSE: This study examined the effects of a giant (4×3 m) exercising board game intervention on ambulatory physical activity (PA) and a broader array of physical and psychological outcomes among nursing home residents. MATERIALS AND METHODS: A quasi-experimental longitudinal study was carried out in two comparable nursing homes. Ten participants (aged 82.5±6.3 and comprising 6 women) meeting the inclusion criteria took part in the 1-month intervention in one nursing home, whereas 11 participants (aged 89...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28579190/effect-of-low-level-laser-therapy-lllt-and-light-emitting-diodes-ledt-applied-during-combined-training-on-performance-and-post-exercise-recovery-protocol-for-a-randomized-placebo-controlled-trial
#18
Aryane Flauzino Machado, Jéssica Kirsch Micheletti, Franciele Marques Vanderlei, Fabio Yuzo Nakamura, Ernesto Cesar Pinto Leal-Junior, Jayme Netto Junior, Carlos Marcelo Pastre
BACKGROUND: Previous studies have shown positive results of phototherapy for improving performance and accelerating recovery; however, the effects of phototherapy during training and after a primary adaptation remain unclear. The aim of this randomized controlled trial is to analyze the effects of phototherapy and combined training on clinical, functional, and psychological outcomes and on vascular endothelial growth factor. METHODS: This randomized placebo-controlled trial by stratified sample will involve 45 healthy male participants...
May 20, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28577179/good-isometric-and-isokinetic-power-restoration-after-distal-biceps-tendon-repair-with-anchors
#19
Arnold J Suda, Julia Prajitno, Paul A Grützner, Marco Tinelli
INTRODUCTION: Distal biceps brachii tendon rupture can lead to 30-40% power loss of elbow flexion and up to 50% of forearm supination. Re-fixation of the distal biceps brachii tendon is recommended to warrant an adequate quality of the patient's life. This study reports the isometric and isokinetic results after anchor re-fixation 2.5 years after surgery. PATIENTS AND METHODS: Between 2007 and 2010, 69 patients with distal biceps brachii tendon tear underwent a suture anchor reattachment...
June 2, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28574410/changes-in-muscle-cross-sectional-area-muscle-force-and-jump-performance-during-6-weeks-of-progressive-whole-body-vibration-combined-with-progressive-high-intensity-resistance-training
#20
A Rosenberger, Å Beijer, B Johannes, E Schoenau, J Mester, J Rittweger, J Zange
OBJECTIVES: We hypothesized that progressive whole-body vibration (WBV) superimposed to progressive high intensity resistance training has greater effects on muscle cross-sectional area (CSA), muscle force of leg muscles, and jump performance than progressive high intensity resistance training alone. METHODS: Two groups of healthy male subjects performed either 6 weeks of Resistive Vibration Exercise (RVE, squats and heel raises with WBV, n=13) or Resistive Exercise (RE, squats and heel raises without WBV, n=13)...
June 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
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