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Stress and recovery, Athlete

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https://www.readbyqxmd.com/read/29782463/gut-microbiota-probiotics-and-sport-from-clinical-evidence-to-agonistic-performance
#1
Marco Pane, Angela Amoruso, Francesca Deidda, Teresa Graziano, Serena Allesina, Luca Mogna
Human beings harbor clusters of bacteria in different parts of the body, such as the surface or the deep layers of the skin, the mouth, the lungs, the intestine, the vagina, and all the surfaces exposed to the outer world. The majority of microbes resides in the gut, have a weighty influence on human physiology and nutrition and are vital for human life. There is growing evidence showing that the gut microbiota plays important roles in the maturation of the immune system and the protection against some infectious agents...
May 18, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29781940/alpha-actinin-3-r577x-polymorphism-influences-muscle-damage-and-hormonal-responses-after-a-soccer-game
#2
Daniel B Coelho, Eduardo M Pimenta, Izinara C Rosse, Christiano Veneroso, Guilherme De Azambuja Pussieldi, Lenice K Becker, Emerson C Oliveira, Maria R S Carvalho, Emerson Silami-Garcia
Coelho, DB, Pimenta, EM, Rosse, IC, Veneroso, C, Pussieldi, GDA, Becker, LK, De Oliveira, EC, Carvalho, MRS, and Silami-Garcia, E. Alpha-actinin-3 R577X polymorphism influences muscle damage and hormonal responses after a soccer game. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to evaluate indicators of muscle damage and hormonal responses after soccer matches and its relation to alpha-actinin-3 (ACTN3) gene expression (XX vs. RR/RX), considering that the R allele produces alpha-actinin-3 and provides greater muscle strength and power...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29685283/blood-biomarkers-are-associated-with-brain-function-and-blood-flow-following-sport-concussion
#3
Alex P Di Battista, Nathan Churchill, Tom A Schweizer, Shawn G Rhind, Doug Richards, Andrew J Baker, Michael G Hutchison
BACKGROUND: Secondary injury pathophysiology after sport-related concussion (SRC) is poorly understood. Blood biomarkers may be a useful tool for characterizing these processes, yet there are limitations in their application as a single modality. Combining blood biomarker analysis with advanced neuroimaging may help validate their continued utility in brain injury research by elucidating important secondary injury mechanisms. Hence, the purpose of this study was to evaluate co-modulation between peripheral blood biomarkers and advanced functional brain imaging after SRC...
June 15, 2018: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29679415/elite-swimmers-internal-markers-trajectories-in-ecological-training-conditions
#4
Philippe Vacher, Guillaume Martinent, Laurent Mourot, Michel Nicolas
PURPOSE: This study examined the trajectories of elite swimmers' recovery-stress states and cardiac vagal-related markers during a three-month training period preceding the national championship and their within-person relationships with perceived control. METHODS: A Multilevel Growth Curve Analysis (MGCA) approach was used with 21 male elite swimmers. Four waves of assessments of psychological (stress, recovery, perceived control) and physiological (heart rate variability, HRV) markers were completed during a three-month training preparation leading to a major competition...
April 21, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29671490/common-running-injuries-evaluation-and-management
#5
Michael J Arnold, Aaron L Moody
Running is a common form of exercise but predisposes athletes to several running-related injuries. Most running injuries are due to overuse and respond to conservative treatment. Tendinopathies in the patellar, Achilles, and hamstring tendons are common, and are primarily treated with eccentric exercise. Iliotibial band syndrome and patellofemoral pain syndrome are less common than patellar tendinopathy and are treated by strengthening exercises for the core and legs in addition to flexibility exercises. Acute hamstring strains and medial tibial stress syndrome require a period of relative rest, followed by stretching and graded return to activity...
April 15, 2018: American Family Physician
https://www.readbyqxmd.com/read/29620966/the-influence-of-training-load-exposure-to-match-play-and-sleep-duration-on-daily-wellbeing-measures-in-youth-athletes
#6
Thomas Sawczuk, Ben Jones, Sean Scantlebury, Kevin Till
This study assessed the influence of training load, exposure to match play and sleep duration on two daily wellbeing measures in youth athletes. Forty-eight youth athletes (age 17.3 ± 0.5 years) completed a daily wellbeing questionnaire (DWB), the Perceived Recovery Status scale (PRS), and provided details on the previous day's training loads (TL) and self-reported sleep duration (sleep) every day for 13 weeks (n = 2727). Linear mixed models assessed the effect of TL, exposure to match play and sleep on DWB and PRS...
April 5, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29605837/pathophysiology-of-noncardiac-syncope-in-athletes
#7
REVIEW
Georgios A Christou, Konstantinos A Christou, Dimitrios N Kiortsis
The most frequent cause of syncope in young athletes is noncardiac etiology. The mechanism of noncardiac syncope (NCS) in young athletes is neurally-mediated (reflex). NCS in athletes usually occurs either as orthostasis-induced, due to a gravity-mediated reduced venous return to the heart, or in the context of exercise. Exercise-related NCS typically occurs after the cessation of an exercise bout, while syncope occurring during exercise is highly indicative of the existence of a cardiac disorder. Postexercise NCS appears to result from hypotension due to impaired postexercise vasoconstriction, as well as from hypocapnia...
March 31, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29584538/reducing-fear-of-reinjury-and-pain-perception-among-athletes-with-first-time-anterior-cruciate-ligament-reconstructions-by-implementing-imagery-training
#8
Rosa M Rodriguez, Ashley Marroquin, Nicole Cosby
Injuries are an inevitable part of competitive sports as well a recreational activities. Research shows that one of the most common musculoskeletal complaints that accounts for approximately 48 out of 1,000 patients are knee related injuries.1 As noted, approximately nine percent of these knee complaints are related to anterior cruciate ligament (ACL) injuries.2 ,3 The ACL is commonly injured in contact sports via a non-contact action such as planting, cutting, landing on a hyperextended knee, or pivoting and sudden deceleration...
March 27, 2018: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29581653/effects-of-mechanical-bed-massage-on-exercise-induced-back-fatigue-in-athletes
#9
Houyong Zhong, Wichai Eungpinichpong, Xingze Wang, Uraiwon Chatchawan, Sawitri Wanpen, Orawan Buranruk
[Purpose] The study aimed to preliminarily investigate the effects of mechanical-bed massage on exercise-induced back fatigue in athletes. [Subjects and Methods] Twelve male college athletes, randomly allocated to experimental or control groups, were instructed to perform reverse sit-up for 8 sessions until they became fatigued. The experimental group received a 20-min mechanical-bed massage session, while the control group rested on a bed for the same period of time. Visual Analogue Scale (VAS) on perceived back muscle fatigue, back muscle endurance, and Heart Rate Variability (HRV) parameters including stress index (SI), HRV index, SDNN, RMSSD, pNN50, LF, HF, and LF/HF were analyzed...
March 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29543069/multidimensional-monitoring-of-recovery-status-and-implications-for-performance
#10
Jahan Heidari, Jürgen Beckmann, Maurizio Bertollo, Michel Brink, Wolfgang Kallus, Claudio Robazza, Michael Kellmann
Monitoring of recovery in the context of athletic performance has gained significant importance during recent years. As a systematic process of data collection and evaluation, the monitoring of recovery can be implemented for various purposes. It may aid to prevent negative outcomes of training or competition, such as underrecovery, overtraining, or injuries. Further, it aims at establishing routines and strategies necessary to guarantee athletes' readiness for performance by restoring their depleted resources...
March 15, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29536784/autonomic-modulations-of-heart-rate-variability-are-associated-with-sports-injury-incidence-in-sprint-swimmers
#11
Dayanne S Lima-Borges, Paula F Martinez, Luiz Carlos M Vanderlei, Fernando S S Barbosa, Silvio A Oliveira-Junior
OBJECTIVES: Young athletes' participation in competitive sports is becoming increasingly common, and this increased involvement raises concerns about the occurrence of overtraining and sports injuries. Since these issues are poorly understood, this study analyzed heart rate variability, stress/recovery relationship, and sports injury incidence during a training macrocycle of young sprint and endurance swimmers. METHODS: Thirty teenage swimmers (aged 12 to 17 years) were divided into two groups as follows: Sprint (n = 17) and Endurance (n = 13)...
March 28, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29534465/effect-of-a-protein-supplement-on-the-gut-microbiota-of-endurance-athletes-a-randomized-controlled-double-blind-pilot-study
#12
Diego Moreno-Pérez, Carlo Bressa, María Bailén, Safa Hamed-Bousdar, Fernando Naclerio, Manuel Carmona, Margarita Pérez, Rocío González-Soltero, Maria Gregoria Montalvo-Lominchar, Claudia Carabaña, Mar Larrosa
Nutritional supplements are popular among athletes to improve performance and physical recovery. Protein supplements fulfill this function by improving performance and increasing muscle mass; however, their effect on other organs or systems is less well known. Diet alterations can induce gut microbiota imbalance, with beneficial or deleterious consequences for the host. To test this, we performed a randomized pilot study in cross-country runners whose diets were complemented with a protein supplement (whey isolate and beef hydrolysate) ( n = 12) or maltodextrin (control) ( n = 12) for 10 weeks...
March 10, 2018: Nutrients
https://www.readbyqxmd.com/read/29527319/inferior-heel-pain-in-soccer-players-a-retrospective-study-with-a-proposal-for-guidelines-of-treatment
#13
Raoul Saggini, Maurizio Migliorini, Simona Maria Carmignano, Emilio Ancona, Chiara Russo, Rosa Grazia Bellomo
Background: The cause of heel pain among soccer players is multifactorial and is related to repetitive microtrauma due to impact forces involving technical moves, but also the playground, the exercise mode, the recovery time, the climatic conditions and the footwear used. Aim: To investigate the aetiology of plantar heel pain of soccer players with the objective of proposing an example of guidelines for treatment. Methods: We investigated the prevalence and characteristics of inferior heel pain of 1473 professional, semiprofessional and amateur players...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29462969/milk-an-effective-recovery-drink-for-female-athletes
#14
Paula Rankin, Adrian Landy, Emma Stevenson, Emma Cockburn
Milk has become a popular post-exercise recovery drink. Yet the evidence for its use in this regard comes from a limited number of investigations utilising very specific exercise protocols, and mostly with male participants. Therefore, the aim of this study was to investigate the effects of post-exercise milk consumption on recovery from a sprinting and jumping protocol in female team-sport athletes. Eighteen females participated in an independent-groups design. Upon completion of the protocol participants consumed 500 mL of milk (MILK) or 500 mL of an energy-matched carbohydrate (CHO) drink...
February 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29450135/development-of-a-specific-index-to-detect-malnutrition-in-athletes-validity-in-weight-class-or-intermittent-fasted-athletes
#15
François D Desgorces, Christophe Moinard, Mounir Chennaoui, Jean-François Toussaint, Cyril Petibois, Philippe Noirez
Fasted or weight-category athletes manage their training under strict diet conditions that could impair the stress-recovery balance and result in acute or chronic fatigue. However, to date, no validated biomarker are available to quantify this phenomena. The aim of this study was to assess the validity of a specific index combining plasma albumin and weight change to detect nutrition-related risks of fatigue increase and under-performance in athletes experiencing particular nutritional conditions. An athlete's nutrition risk index (ANRI) equation, based on data from lightweight and heavyweight rowers, was developed using relationship between plasma albumin concentrations combined to weight changes with sport performance and overtraining scores and was tested by odds ratio for failure...
June 2017: Biochimie open
https://www.readbyqxmd.com/read/29420349/thyroid-disorders-in-athletes
#16
John R Luksch, Philip B Collins
When athletic performance begins to deteriorate, it is important to identify possible underlying etiologies to explain such a phenomenon. Causes include inadequate nutrition, improper training habits, infection, and hematologic or endocrine diseases. In athletes, a thorough investigation of potentially reversible underlying medical conditions may be warranted when there are noted disruptions in training, competition, and recovery. Thyroid disorders should be considered in athletes in whom such a condition is suspected...
February 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29420083/an-investigation-of-neuroinjury-biomarkers-after-sport-related-concussion-from-the-subacute-phase-to-clinical-recovery
#17
Alex P Di Battista, Shawn G Rhind, Andrew J Baker, Rakesh Jetly, Jeff D Debad, Doug Richards, Michael G Hutchison
OBJECTIVES: To characterise a panel of neuroinjury-related blood biomarkers after sport-related concussion (SRC). We hypothesised significant differences in biomarker profiles between athletes with SRC and healthy controls at both subacute and medical clearance time points. METHODS: Thirty-eight interuniversity athletes were recruited over two athletic seasons (n = 19 SRC; n = 19 healthy matched-control). High-sensitivity immunoassay was used to evaluate 11 blood analytes at both the subacute phase after SRC and at medical clearance...
2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29387449/-recover-quicker-train-harder-and-increase-flexibility-massage-therapy-for-elite-paracyclists-a-mixed-methods-study
#18
Ann Blair Kennedy, Nirav Patil, Jennifer L Trilk
Objectives: Massage therapy (MT) enhances recovery by reducing pain and fatigue in able-bodied endurance athletes. In athletes with disabilities, no studies have examined similar MT outcomes, yet participation in sport has increased by >1000 athletes from 1996 to 2016 Olympic games. We examined the effect of MT on pain, sleep, stress, function and performance goals on the bike, as well as quality of life off the bike, in elite paracycling athletes. Methods: This is a quasi-experimental, convergent, parallel, mixed-methods design study of one team, with nine paracycling participants, in years 2015 and 2016...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29345524/recovery-and-performance-in-sport-consensus-statement
#19
Michael Kellmann, Maurizio Bertollo, Laurent Bosquet, Michel Brink, Aaron Coutts, Rob Duffield, Daniel Erlacher, Shona Halson, Anne Hecksteden, Jahan Heidari, Romain Meeusen, Iñigo Mujika, Claudio Robazza, Sabrina Skorski, Ranel Venter, Jürgen Beckmann
The relationship between recovery and fatigue and its impact on performance has attracted the interest of sports science for many years. An adequate balance between stress (training and competition load, other life demands) and recovery is essential for athletes to achieve continuous high-level performance. Research has focused on the examination of physiological and psychological recovery strategies to compensate external and internal training and competition loads. A systematic monitoring of recovery and the subsequent implementation of recovery routines aims at maximizing performance and preventing negative developments such as underrecovery, non-functional overreaching, the overtraining syndrome, injuries, or illnesses...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29343237/subtypes-in-clinical-burnout-patients-enrolled-in-an-employee-rehabilitation-program-differences-in-burnout-profiles-depression-and-recovery-resources-stress-balance
#20
Kathrin Bauernhofer, Daniela Bassa, Markus Canazei, Paulino Jiménez, Manuela Paechter, Ilona Papousek, Andreas Fink, Elisabeth M Weiss
BACKGROUND: Burnout is generally perceived a unified disorder with homogeneous symptomatology across people (exhaustion, cynicism, and reduced professional efficacy). However, increasing evidence points to intra-individual patterns of burnout symptoms in non-clinical samples such as students, athletes, healthy, and burned-out employees. Different burnout subtypes might therefore exist. Yet, burnout subtypes based on burnout profiles have hardly been explored in clinical patients, and the samples investigated in previous studies were rather heterogeneous including patients with various physical, psychological, and social limitations, symptoms, and disabilities...
January 17, 2018: BMC Psychiatry
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