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Intermittent exercise

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https://www.readbyqxmd.com/read/28090139/the-blood-antioxidant-defence-capacity-during-intermittent-hypoxic-training-in-elite-swimmers
#1
S Poprzęcki, M Czuba, A Zając, J Karpiński, R Wilk, G Bril, A Maszczyk, M Toborek
The main objective of this study was to examine the chronic effect of simulated intermittent normobaric hypoxia on blood antioxidant defence capacity in swimmers. The study included 14 male and 14 female competitive swimmers performing part of land training under simulated intermittent normobaric hypoxia (O2 = 15.5%) or in normoxia. Land interval training took place twice per week, with a total of 8 training units during the study, performed with individualized intensity. The activities of blood antioxidant enzymes did not change significantly during the first and last training unit in the hypoxic and normoxic group...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28087891/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#2
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
January 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28074979/-effects-of-12-sessions-of-high-intensity-intermittent-training-and-nutrition-counseling-on-body-fat-in-obese-and-overweight-participants
#3
Catalina Molina, Gabriela Cifuentes, Cristian Martínez, Rodrigo Mancilla, Erik Díaz
BACKGROUND: The search of efficient exercise alternatives to treat obesity is worthwhile. AIM: To demonstrate the effect of high intensity intermittent exercise on body fat reduction in overweight and obese subjects. MATERIAL AND METHODS: A group of 65 overweight and obese adult subjects (25 men), aged 18-65 years, participated during 12 sessions in a high intensity physical exercise program, 3 days/week. Weight, height and body fat was measured before and after the intervention by bioimpedance...
October 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28067762/ecologically-valid-carbohydrate-intake-during-soccer-specific-exercise-does-not-affect-running-performance-in-a-fed-state
#4
Mark P Funnell, Nick R Dykes, Elliot J Owen, Stephen A Mears, Ian Rollo, Lewis J James
This study assessed the effect of carbohydrate intake on self-selected soccer-specific running performance. Sixteen male soccer players (age 23 ± 4 years; body mass 76.9 ± 7.2 kg; predicted VO2max = 54.2 ± 2.9 mL∙kg(-1)∙min(-1); soccer experience 13 ± 4 years) completed a progressive multistage fitness test, familiarisation trial and two experimental trials, involving a modified version of the Loughborough Intermittent Shuttle Test (LIST) to simulate a soccer match in a fed state. Subjects completed six 15 min blocks (two halves of 45 min) of intermittent shuttle running, with a 15-min half-time...
January 5, 2017: Nutrients
https://www.readbyqxmd.com/read/28067740/update-on-management-of-type-1-diabetes-and-type-2-diabetes-in-athletes
#5
Jane E Yardley, Sheri R Colberg
Optimal blood glucose management still remains the biggest challenge in active individuals with diabetes, particularly in insulin users, but some newer strategies have been introduced to maintain blood glucose control. Recent studies emphasize the importance of exercise intensity on glycemic balance. In individuals with type 1 and type 2 diabetes, both resistance and high-intensity intermittent exercise have been shown to confer beneficial physiological adaptations in training studies, while also showing acute glycemic benefits from single sessions...
January 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28060976/-cardiovascular-recovery-during-intermittent-exercise-in-highly-adherent-partic-pants-with-hypertension-and-type-2-diabetes-mellitus
#6
Johnattan Cano-Montoya, Cristian Álvarez, Cristian Martínez, Andrés Salas, Farid Sade, Rodrigo Ramírez-Campillo
BACKGROUND: Despite the evidence supporting metabolic benefits of high intensity interval exercise (HIIT), there is little information about the cardiovascular response to this type of exercise in patients with type 2 diabetes (T2D) and hypertension (HTA). AIM: To analyze the changes in heart rate at rest, at the onset and at the end of each interval of training, after twelve weeks of a HIIT program in T2D and HTA patients. MATERIAL AND METHODS: Twenty-three participants with T2D and HTA (20 women) participated in a controlled HIIT program...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28043028/modulation-of-inflammatory-response-arising-from-high-intensity-intermittent-and-concurrent-strength-training-in-physically-active-males
#7
Paula Alves Monteiro, Eduardo Zapaterra Campos, Flaviane Poleto de Oliveira, Fernando Pierin Peres, José Cesar Rosa-Neto, Gustavo Duarte Pimentel, Fabio Santos Lira
The purposes of this study were to determine: (i) the extent of an acute session of high-intensity intermittent exercise (HIIE) followed by a concurrent strength session (Conc) on the increase of systemic inflammatory cytokines and chemokines, and (ii) whether eight weeks of high intensity interval training plus concurrent strength training alters the acute inflammatory response and immune status. Ten recreationally active males (aged 26.9±4.3years) performed two experimental exercise sessions interspersed by eight weeks of HIIT plus concurrent strength training...
December 30, 2016: Cytokine
https://www.readbyqxmd.com/read/28039521/echs1-deficiency-associated-paroxysmal-exercise-induced-dyskinesias-case-presentation-and-initial-benefit-of-intervention
#8
Abhimanyu Mahajan, Jules Constantinou, Christos Sidiropoulos
Paroxysmal exercise-induced dyskinesias (PED) are paroxysmal dyskinesias which manifest as dystonic movements brought on by sustained exercise. ECHS1 deficiency-induced EID was recently described by Olgiati et al. Our patient is an 8-year-old boy, who presented with intermittent episodes of stiffness and contractions affecting the legs which were always brought on by vigorous exertion. They began with curling of the toes and flexion, followed by stiffening of gait. These episodes were asymmetric, uncomfortable and often began in the left leg, often spreading to the right leg...
December 30, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/28039190/endurance-training-attenuates-the-increase-in-peripheral-chemoreflex-sensitivity-with-intermittent-hypoxia
#9
Amanda J Miller, Charity L Sauder, Aimee E Cauffman, Cheryl A Blaha, Urs A Leuenberger
Patients with heart failure and sleep apnea have greater chemoreflex sensitivity, presumably due to intermittent hypoxia (IH), and this is predictive of mortality. We hypothesized that endurance training would attenuate the effect of IH on peripheral chemoreflex sensitivity in healthy humans. Fifteen young healthy subjects (9 female, 26 ± 1 years) participated. Between visits, 11 subjects underwent eight weeks of endurance training that included running four times/week at 80% predicted max heart rate and interval training, and 4 control subjects did not change activity...
December 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28031682/diagnosing-left-coronary-ostial-atresia-sometimes-the-old-ways-are-best
#10
Steven Karayiannis, Brian Anthony McCrossan, Andrew Sands
A 12-year-old boy with intermittent syncope associated with exercise. Exercise stress testing suggested myocardial ischemia and 2D echocardiography failed to confirm antegrade flow in the left main stem. Advanced imaging techniques including cardiac-gated computed tomography angiography and stress cardiac magnetic resonance imaging were falsely reassuring. Cardiac catheterization demonstrated left coronary artery ostial atresia with a good caliber left coronary system supplied by generous collaterals from the right coronary artery...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28012598/mechanisms-underpinning-protection-against-eccentric-exercise-induced-muscle-damage-by-ischemic-preconditioning
#11
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/28010805/hybrid-cooling-vest-for-cooling-between-exercise-bouts-in-the-heat-effects-and-practical-considerations
#12
Albert P C Chan, Yang Yang, Wen-Fang Song, Del P Wong
While continuous cooling strategies may induce some ergonomic problems to occupational workers, cooling between work bouts may be an alternative for cooling them down in hot environments. The purpose of this study was to assess the effects of wearing a newly designed hybrid cooling vest (HCV) between two bouts of exercise. Inside a climatic chamber set at an air temperature of 37°C and a relative humidity of 60%, twelve male participants underwent two bouts of intermittent exercise interspersed with a 30min between-bout recovery session, during which HCV or a passive rest without any cooling (PAS) was administered...
January 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28009532/feed-forward-regulation-of-self-selected-exercise-intensity-in-response-to-different-rates-of-arterial-deoxygenation
#13
Saro D Farra
Arterial desaturation impairs exercise performance in a dose-dependent manner. However, new theories of exercise-induced fatigue suggest that increasing rates of arterial deoxygenation augment the fatigue response during exercise. The purpose of this dissertation is to clarify if self-selected exercise intensity, while exercising at a constant rate of perceived exertion (RPE), is sensitive to alterations in the absolute arterial saturation (SPO2) and/or the rate of change in SPO2. Subjects performed constant RPE exercise for 30 min...
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27998046/supervised-exercise-therapy-it-does-work-but-how-to-set-up-a-program
#14
David Hageman, Marijn M VAN DEN Houten, Steffie Spruijt, Lindy N Gommans, Marc R Scheltinga, Joep A Teijink
Intermittent claudication (IC) is a manifestation of peripheral arterial disease. IC has a high prevalence in the older population, is closely associated with other expressions of atherosclerotic disease and often co-exists in multimorbid patients. Treatment of IC should address reduction of cardiovascular risk and improvement of functional capacity and health-related quality of life (QoL). As recommended by contemporary international guidelines, the first-line treatment includes supervised exercise therapy (SET)...
December 19, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27994556/endurance-performance-during-severe-intensity-intermittent-cycling-effect-of-exercise-duration-and-recovery-type
#15
Luis F Barbosa, Benedito S Denadai, Camila C Greco
Slow component of oxygen uptake (VO2SC) kinetics and maximal oxygen uptake (VO2max) attainment seem to influence endurance performance during constant-work rate exercise (CWR) performed within the severe intensity domain. In this study, it was hypothesized that delaying the attainment of VO2max by reducing the rates at which VO2 increases with time (VO2SC kinetics) would improve the endurance performance during severe-intensity intermittent exercise performed with different work:recovery duration and recovery type in active individuals...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27992397/adaptations-with-intermittent-exercise-training-in-post-and-premenopausal-women
#16
Kåre Seidelin, Michael Nyberg, Peter Piil, Niklas Rye Jørgensen, Ylva Hellsten, Jens Bangsbo
INTRODUCTION: The purposes of the present study was to examine the effect of intermittent exercise training on musculoskeletal and metabolic health in postmenopausal (PM) and premenopausal (PRM) women and, furthermore, to evaluate whether the adaptations can be maintained with a reduced training frequency. METHODS: Eighteen PM (51 ± 1 yr, mean ± SEM) and 12 PRM (48 ± 1 yr) women participated in floorball training approximately two times per week for 12 wk. In a subgroup (n = 9) of PM women (PM40), exercise training was performed for an additional 40 wk with a reduced training frequency of approximately one training session per week...
January 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27977528/in-play-cooling-interventions-for-simulated-match-play-tennis-in-hot-humid-conditions
#17
Daniela Schranner, Lisa Scherer, Grant P Lynch, Svenja Korder, John R Brotherhood, Babette M Pluim, Julien D Périard, Ollie Jay
PURPOSE: To assess the efficacy of different in-play cooling strategies for mitigating heat strain during simulated tennis match-play activity in a hot/humid environment representing the most extreme conditions during the US Open (36°C, 50% RH). METHODS: On three occasions, nine males completed an intermittent treadmill-protocol with an exercise intensity and activity profile simulating a 4-set tennis match, with 90-s breaks between odd-numbered games and 120-s between sets, according to ITF rules...
December 13, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27967281/cho-mouth-rinsing-improves-neuromuscular-performance-during-isokinetic-fatiguing-exercise
#18
Ilenia Bazzucchi, Federica Patrizio, Francesco Felici, Andrea Nicolò, Massimo Sacchetti
PURPOSE: To determine whether repeated CHO mouth rinsing would improve neuromuscular performance during high intensity fatiguing contractions. METHODS: 18 young men (26.1±5.0 yr; 22.9±1,9 BMI) performed 3 maximal voluntary isometric contractions (MVICPRE). Immediately after, they completed 10 s mouth rinse with either 6.4% maltodextrine solution [MAL] or 7.1% glucose solution [GLU] or water [W] or artificially sweetened solution [PLA] or a control trial with no rinse [CON] in a cross over protocol...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27960614/long-term-individual-shear-rate-therapy-counterpulsation-enhances-plasma-nitrite-release-in-patients-with-pad
#19
Michèle Brix, Eva-Elina Buschmann, Andreas Zietzer, Jonnel Anthony Jaurigue, Lulu Li, Constantin Jungk, Ivo Buschmann, Doreen Janke, Philipp Hillmeister
BACKGROUND: Individual shear rate therapy (ISRT) has been designed as a novel non-invasive treatment option for peripheral artery disease (PAD) patients and has been shown to improve endothelial function and walking distance. The aim of this study was to elucidate the impact of ISRT on the level of nitric oxide in patient blood plasma and the expression of related molecular markers in peripheral blood mononuclear cells (PBMCs). Molecular diagnostic tests were performed for two ISRT trials...
December 14, 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27939350/quantifying-the-history-dependency-of-muscle-recovery-from-a-fatiguing-intermittent-task
#20
Ehsan Rashedi, Maury A Nussbaum
Muscle fatigue and recovery are complex processes influencing muscle force generation capacity. While fatigue reduces this capacity, recovery acts to restore the unfatigued muscle state. Many factors can potentially affect muscle recovery, and among these may be a task dependency of recovery following an exercise. However, little has been reported regarding the history dependency of recovery after fatiguing contractions. We examined the dependency of muscle recovery subsequent to four different histories of fatiguing muscle contractions, imposed using two cycle times (30 and 60s) during low to moderate levels (15% and 25% of maximum voluntary contraction (MVC)) of intermittent static exertions involving index finger abduction...
January 25, 2017: Journal of Biomechanics
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