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Exercise recovery

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https://www.readbyqxmd.com/read/28723843/no-superior-adaptations-to-carbohydrate-periodization-in-elite-endurance-athletes
#1
Kasper Degn Gejl, Line Thams, Mette Hansen, Torben Rokkedal-Lausch, Peter Plomgaard, Lars Nybo, Filip J Larsen, Daniele A Cardinale, Kurt Jensen, Hans-Christer Holmberg, Kristian Vissing, Niels Ørtenblad
PURPOSE: The present study investigated the effects of periodic CHO restriction on endurance performance and metabolic markers in elite endurance athletes. METHODS: Twenty-six male elite endurance athletes (VO2max: 65.0 ml O2[BULLET OPERATOR]kg[BULLET OPERATOR]min) completed 4 weeks of regular endurance training, while matched and randomized into two groups training with (Low) or without (High) carbohydrate (CHO) manipulation three days a week. The CHO manipulation days consisted of a 1-hr high intensity bike session in the morning, recovery for 7 hrs while consuming isocaloric diets containing either high CHO (414±2...
July 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28717150/a-comparison-of-traditional-and-novel-metrics-to-quantify-resistance-training
#2
Kieran J Marston, Jeremiah J Peiffer, Michael J Newton, Brendan R Scott
Common estimates of external training intensity for resistance exercise do not incorporate inter-set recovery duration, and might not reflect the overall demands of training. This study aimed to assess novel metrics of exercise density (ED) during resistance exercise, and how these related to a physiological marker of internal training intensity as well as traditional measures of external training intensity and volume. Thirteen males and seven females performed two bouts of resistance exercise focused on developing strength (5 sets of 5 repetitions with 5-repetition maximum; 180 s recovery) and hypertrophy (3 sets of 10 repetitions with 10-repetition maximum; 60 s recovery)...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716692/the-fatigue-of-a-full-body-resistance-exercise-session-in-trained-men
#3
Paul W M Marshall, Rebecca Cross, Michael Haynes
OBJECTIVES: We examined the fatigue and recovery for 48h following a full-body resistance exercise session in trained men. DESIGN: Experimental cross-sectional study. METHODS: Eight resistance trained men volunteered to participate (mean±SD; age 27.0±6.0 years, height 1.79±0.05m, weight 81.8±6.8kg, training experience 7.8±5.0 years). Fatigue and pain was measured before, after, 1h post, 24h and 48h post the full-body resistance exercise session, which was based on in-season models used in contact team sports (e...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28713461/the-effects-of-maximal-intensity-exercise-on-cognitive-performance-in-children
#4
Roy David Samuel, Ofir Zavdy, Miriam Levav, Ronen Reuveny, Uriel Katz, Gal Dubnov-Raz
High intensity physical exercise has previously been found to lead to a decline in cognitive performance of adults. The aim of this study was to determine the effects of maximal intensity exercise on cognitive performance of children. Using a repeated-measures design, 20 children and adolescents aged 8-17 years completed a battery of tests measuring memory and attention. Forward and Backward Digit Span tests, the Rey Auditory-Verbal Learning Test (RAVLT) and the Digit Symbol Substitution Test (DSST) were performed at baseline, immediately after, and one hour after a maximal cardiopulmonary exercise test...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28712263/effects-of-colostrum-serum-on-the-serotonergic-system-in-the-dorsal-raphe-nuclei-of-exercised-rats
#5
Tae-Woon Kim, Chang-Ju Kim, Jinhee Seo
PURPOSE: The central fatigue hypothesis suggests that exhaustion, or the maximum level of exercise, induces excessive stress and increases serotonin concentrations in the brain, which in turn decreases central nervous system (CNS) function and induces fatigue. Our aim was to determine the effects of colostrum serum on the serotonergic system in the dorsal raphe nuclei during exhaustive exercise. METHODS: Animals were randomly divided into five groups: control, exercise, exercise and treatment with 50, 100, and 200 mg/kg of colostrum serum...
March 31, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28708775/continuous-cardiac-autonomic-and-hemodynamic-responses-to-isometric-exercise
#6
Katrina A Taylor, Jonathan D Wiles, Damian D Coleman, Rajan Sharma, Jamie M Oʼdriscoll
PURPOSE: Elevated arterial blood pressure (BP) is associated with autonomic dysfunction and impaired hemodynamic control mechanisms. Isometric exercise (IE) training has been demonstrated effective at reducing BP; however, the continuous cardiovascular responses during IE are underinvestigated. We hypothesized that reflex autonomic cardiovascular control is an important mediator in reducing BP. To test our hypothesis, we investigated continuous cardiac autonomic modulation and baroreceptor reflex sensitivity (BRS) in response to IE...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28708697/simultaneous-physical-and-mental-effort-alters-visual-function
#7
Jesús Vera, Raimundo Jiménez, José Antonio García, David Cárdenas
PURPOSE: Perceptual processing is sensitive to physiological changes. Thus, the homeostatic disturbances during and after exercise may alter the visual function. Here, we investigated the effect of simultaneous physical effort and two levels of cognitive demand on skills related to the visuoperceptual and motor processing. METHODS: Eighteen male regular exercisers performed 60 minutes of simultaneous physical exercise (cycling at 60 ± 5% of reserve heart rate) and cognitive effort (mental workload)...
July 14, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28707149/long-term-quality-of-life-and-outcomes-following-robotic-assisted-tapp-inguinal-hernia-repair
#8
Andrew Iraniha, Joshua Peloquin
Laparoscopic TAPP inguinal hernia repair is an established alternative to open hernia repair, which offers equivalent outcomes with less postoperative pain and faster recovery. Unfortunately, it remains technically challenging, requiring advanced laparoscopic skills which have limited its popularity among surgeons. The robotic platform has the potential to overcome these challenges. The objective of this study was to examine the long-term quality of life and outcomes following robotic assisted TAPP inguinal hernia repair, since these data have not been reported up to now...
July 13, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28706467/ketogenic-diet-benefits-body-composition-and-well-being-but-not-performance-in-a-pilot-case-study-of-new-zealand-endurance-athletes
#9
Caryn Zinn, Matthew Wood, Mikki Williden, Simon Chatterton, Ed Maunder
BACKGROUND: Low-carbohydrate, high-fat and ketogenic diets are increasingly adopted by athletes for body composition and sports performance enhancements. However, as yet, there is no consensus on their efficacy in improving performance. There is also no comprehensive literature on athletes' experiences while undertaking this diet. The purpose of this pilot work was two-fold: i. to examine the effects of a non-calorie controlled ketogenic diet on body composition and performance outcomes of endurance athletes, and ii...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28705875/electrical-and-structural-substrate-of-arrhythmogenic-right-ventricular-cardiomyopathy-determined-using-noninvasive-electrocardiographic-imaging-and-late-gadolinium-magnetic-resonance-imaging
#10
Christopher M Andrews, Neil T Srinivasan, Stefania Rosmini, Heerajnarain Bulluck, Michele Orini, Sharon Jenkins, Antonis Pantazis, William J McKenna, James C Moon, Pier D Lambiase, Yoram Rudy
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a significant cause of sudden cardiac death in the young. Improved noninvasive assessment of ARVC and better understanding of the disease substrate are important for improving patient outcomes. METHODS AND RESULTS: We studied 20 genotyped ARVC patients with a broad spectrum of disease using electrocardiographic imaging (a method for noninvasive cardiac electrophysiology mapping) and advanced late gadolinium enhancement cardiac magnetic resonance scar imaging...
July 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28704193/rehabilitation-of-patients-with-hip-joint-arthroplasty-late-post-surgery-period-hospital-rehabilitation
#11
Maya S Krastanova, Elena M Ilieva, Danelina E Vacheva
BACKGROUND: Hip joint replacement (endoprosthesis, alloplasty) has become one of the most frequent surgery interventions of the 20th century. AIM: To conduct rehabilitation therapy in the late post-surgery period of hospital rehabilitation (45 days after surgery), to track patients' progress and measure the results. MATERIALS AND METHODS: One hundred and fifty-two patients with hip joint endoprosthesis were included in the study. All underwent surgery and rehabilitation at the Department of Clinical Rehabilitation of the Physical and Rehabilitation Medicine Clinic at Doctor G...
June 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28703035/influence-of-body-composition-on-physiological-responses-to-post-exercise-hydrotherapy
#12
Jessica M Stephens, Shona L Halson, Joanna Miller, Gary J Slater, Christopher D Askew
This study examined the influence of body composition on temperature and blood flow responses to post-exercise cold water immersion (CWI), hot water immersion (HWI) and control (CON). Twenty-seven male participants were stratified into three groups: 1) low mass and low fat (LM-LF); 2) high mass and low fat (HM-LF); or 3) high mass and high fat (HM-HF). Experimental trials involved a standardised bout of cycling, maintained until core temperature reached 38.5°C. Participants subsequently completed one of three 15-min recovery interventions (CWI, HWI, or CON)...
July 13, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28702901/implications-of-impaired-endurance-peffects-of-endurance-training-orformance-following-single-bouts-of-resistance-training-an-alternate-concurrent-training-perspective
#13
REVIEW
Kenji Doma, Glen B Deakin, David J Bentley
A single bout of resistance training induces residual fatigue, which may impair performance during subsequent endurance training if inadequate recovery is allowed. From a concurrent training standpoint, such carry-over effects of fatigue from a resistance training session may impair the quality of a subsequent endurance training session for several hours to days with inadequate recovery. The proposed mechanisms of this phenomenon include: (1) impaired neural recruitment patterns; (2) reduced movement efficiency due to alteration in kinematics during endurance exercise and increased energy expenditure; (3) increased muscle soreness; and (4) reduced muscle glycogen...
July 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28702808/longer-exercise-duration-delays-post-exercise-recovery-of-cardiac-parasympathetic-but-not-sympathetic-indices
#14
Scott Michael, Ollie Jay, Kenneth S Graham, Glen M Davis
PURPOSE: This study investigated non-invasive indices of post-exercise parasympathetic reactivation (using heart rate variability, HRV) and sympathetic withdrawal (using systolic time intervals, STI) following different exercise durations. METHODS: 13 healthy males (age 26.4 ± 4.7 years) cycled at 70% heart rate (HR) reserve for two durations-8 min (SHORT) and 32 min (LONG)-on separate occasions: HRV (including natural logarithm of root mean square of successive differences, Ln-RMSSD) and STI (including pre-ejection period, PEP) were assessed throughout 10 min seated recovery...
July 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28702452/bronchial-or-laryngeal-obstruction-induced-by-exercise
#15
Ayoub Bey, Sophie Botti, Laurianne Coutier-Marie, Claude Bonabel, Stéphanie Metche, Silvia Demoulin-Alexikova, Cyril Etienne Schweitzer, François Marchal, Laurent Coffinet, Iulia Ioan
A child suspected of exercise-induced laryngeal obstruction and asthma is examined by laryngoscopy and respiratory resistance (Rrs) after exercise challenge. Immediately at exercise cessation, the visualized adduction of the larynx in inspiration is reflected in a paroxystic increase in Rrs. While normal breathing has apparently resumed later on during recovery from exercise, the pattern of Rrs in inspiration is observed to reoccur following a deep breath or swallowing. The procedure may thus help diagnosing the site of exercise-induced obstruction when laryngoscopy is not available and identify re-inducers of laryngeal dysfunction...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28702437/treadmill-exercise-with-bone-marrow-stromal-cells-transplantation-potentiates-recovery-of-locomotor-function-after-spinal-cord-injury-in-rats
#16
You-Mi Kim, Tae-Beom Seo, Chang-Ju Kim, Eun-Sang Ji
Transplantation of bone marrow stromal cells (BMSCs) is regarded as a promising candidate for the spinal cord injury (SCI). In the present study, we investigated whether treadmill exercise potentiate the effect of BM-SCs transplantation on the functional recovery in the SCI rats. The spinal cord contusion injury applied at the T9-T10 level using the impactor. Cultured BMSCs were transplanted into the lesion at 1 week after SCI induction. Treadmill exercise was conducted for 6 weeks. Basso-Beattie-Bresnahan (BBB) scale for locomotor function was determined...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28702435/interval-and-continuous-aerobic-exercise-training-similarly-increase-cardiac-function-and-autonomic-modulation-in-infarcted-mice
#17
Cesar Cavinato Cal Abad, Ademir Manuel do Nascimento, Leandro Eziquiel Dos Santos, Diego Figueroa, Pamella Ramona, Michele Sartori, Katia B Scapini, Oscar Albuquerque, Ivana Cinthya Moraes-Silva, Hélio José Coelho-Júnior, Bruno Rodrigues, Cristiano Teixeira Mostarda, Kátia De Angelis, Maria Cláudia Irigoyen
The present study aimed to compare the effects of moderate-intensity continuous and high-intensity interval exercise training (ET) on exercise tolerance, cardiac morphometry and function, hemodynamic, and cardiac autonomic modulation in myocardial infarcted mice. Wild-type mice (WT) were divided into four groups: sedentary WT (S); WT myocardium infarction sedentary (IS); WT myocardium infarction underwent to moderate-intensity continuous ET (MICT), and WT myocardium infarction underwent to high-intensity interval ET (MIIT)...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28699532/modulation-of-heart-rate-by-acute-or-chronic-aerobic-exercise-potential-effects-on-blood-pressure-control
#18
Carme Perez-Quilis, J Derek Kingsley, Kabir Malkani, Gianfranco Cervellin, Giuseppe Lippi, Fabian Sanchis-Gomar
It was initially assumed that heart rate and arterial blood pressure were modulated by normal respiration and muscle contraction. The arterial baroreflex, an inverse relationship between blood pressure and heart rate, was later reported. Nonetheless, it was then assumed that those responses involved vagal modulation. We summarize available evidence on the modulation of heart rate by acute or chronic aerobic exercise as well as its potential implications on BP control. Numerous studies have tried to clarify whether aerobic exercise modifies neurally-mediated vasoconstriction, but they report contradictory results...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28699055/recovery-of-heart-rate-variability-after-treadmill-exercise-analyzed-by-lagged-poincar%C3%A3-plot-and-spectral-characteristics
#19
Ping Shi, Sijung Hu, Hongliu Yu
The aim of this study was to analyze the recovery of heart rate variability (HRV) after treadmill exercise and to investigate the autonomic nervous system response after exercise. Frequency domain indices, i.e., LF(ms(2)), HF(ms(2)), LF(n.u.), HF(n.u.) and LF/HF, and lagged Poincaré plot width (SD1 m ) and length (SD2 m ) were introduced for comparison between the baseline period (Pre-E) before treadmill running and two periods after treadmill running (Post-E1 and Post-E2). The correlations between lagged Poincaré plot indices and frequency domain indices were applied to reveal the long-range correlation between linear and nonlinear indices during the recovery of HRV...
July 11, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28696993/special-communication-of-a-case-of-hypovolemic-associated-eah-lessons-learned-during-recovery
#20
Tamara Hew-Butler, Rus Hamilton, Bridget Hamilton, Zachary Colesa
Severe exercise-associated hyponatremia (EAH) is largely dilutional, whereas contributions of sodium loss remain equivocal. We present a case of EAH with encephalopathy involving an experienced male cyclist with no recollection of the event. We thereby conducted a retrospective analysis of biochemical trajectories during hospital recovery. The normalization of serum [Na], in context with changes in other variables, offered a 'reverse' perspective of the underlying pathophysiology. The following biochemical changes were temporally observed, with the return of normonatremia: 1) a decrease in serum potassium and calcium concentrations (absence of extracellular fluid dilution); 2) a decrease in total protein, blood urea nitrogen, hematocrit and hemoglobin (plasma volume expansion); and 3) an increase in mean platelet and red cell corpuscular volumes (cellular expansion after total body water and sodium deficits)...
July 2017: Current Sports Medicine Reports
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