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Overtraining syndrome

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https://www.readbyqxmd.com/read/29614917/perfectionism-and-training-distress-in-junior-athletes-the-mediating-role-of-coping-tendencies
#1
Daniel J Madigan, Andrew P Hill, Paul A Anstiss, Sarah H Mallinson-Howard, Simon Kumar
Training distress occurs when athletes fail to cope with physiological and psychological stress and can be an early sign of overtraining syndrome. Recent research has found that perfectionism predicts increases in training distress in junior athletes over time. The current study provides the first empirical test of the possibility that coping tendencies mediate the perfectionism-training distress relationship. Adopting a cross-sectional design, 171 junior athletes (mean age = 18.1 years) completed self-report measures of perfectionistic strivings, perfectionistic concerns, problem-focused coping, avoidant coping, and training distress...
April 3, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29345524/recovery-and-performance-in-sport-consensus-statement
#2
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/29313445/body-composition-metabolism-sleep-psychological-and-eating-patterns-of-overtraining-syndrome-results-of-the-eros-study-eros-profile
#3
Flavio A Cadegiani, Claudio E Kater
Overtraining syndrome (OTS) is caused by an imbalance between training, nutrition and resting, and leads to decreased performance and fatigue; however, the precise underlying triggers of OTS remain unclear. This study investigated the body composition, metabolism, eating, sleeping patterns and mood states among participants with OTS. Selected participants were divided into OTS-affected athletes (OTS, n = 14), healthy athletes (ATL, n = 25), and healthy non-physically active controls (NCS, n = 12). Compared to ATL, OTS showed decreased sleep quality (p = 0...
January 9, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29222606/hypothalamic-pituitary-adrenal-hpa-axis-functioning-in-overtraining-syndrome-findings-from-endocrine-and-metabolic-responses-on-overtraining-syndrome-eros-eros-hpa-axis
#4
Flavio A Cadegiani, Claudio E Kater
BACKGROUND: Overtraining syndrome (OTS) results from excessive training load without adequate recovery and leads to decreased performance and fatigue. The pathophysiology of OTS in athletes is not fully understood, which makes accurate diagnosis difficult. Previous studies indicate that alterations in the hypothalamus-pituitary-adrenal (HPA) axis may be responsible for OTS; however, the data is not conclusive. This study aimed to compare, through gold standard and exercise-independent tests, the response of the HPA axis in OTS-affected athletes (OTS group) to healthy physically active subjects (ATL group) and healthy non-active subjects (NCS group)...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29215751/proteomic-response-of-the-rat-liver-in-differential-swimming-modes
#5
Liang Chen, Yanhua Yang, Yiting Wang, Lipeng Qiu, Hengchuan Xia, Aiai Wang, Hailong Liu, Hongfei Shi, Keping Chen
Moderate exercise helps improve competition results, providing a balanced muscle tone and biochemical activity, whereas excessive training disrupts the balance between training and recovery, causes harm to the organism, and leads to overtraining syndrome (OTS). To explore the mechanisms of different protein expressions during training and acquisition of immunity, we used proteomic analyses to investigate the differences of liver-protein expressions between 2 swimming modes. Sprague-Dawley rats were randomly divided into control (CT), fatigue training (FT), and exhaustive training (ET) groups, and liver tissues from each group were subjected to 2-dimensional electrophoresis (2DE)...
December 7, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29159669/thyroid-hormones-and-commonly-cited-symptoms-of-overtraining-in-collegiate-female-endurance-runners
#6
Justin X Nicoll, Disa L Hatfield, Kathleen J Melanson, Christopher S Nasin
PURPOSE: Overtraining syndrome (OTS) is reported in endurance sports. Thyroid hormones (TH) regulate metabolism, mood, and energy production, and may play a role in OTS of endurance athletes. The purpose of this study was to investigate relationships in TH and symptoms of OTS in track and field endurance runners (ER). METHODS: Sixteen female track and field middle distance (MD; n = 9; age: 20.2 ± 1.5 years; ht: 167.86 ± 5.04 cm; body-mass: 57.97 ± 5...
January 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29157780/growth-hormone-gh-and-prolactin-responses-to-a-non-exercise-stress-test-in-athletes-with-overtraining-syndrome-results-from-the-endocrine-and-metabolic-responses-on-overtraining-syndrome-eros-eros-stress
#7
Flavio A Cadegiani, Claudio E Kater
OBJECTIVES: Overtraining syndrome (OTS) leads to worsened sports performance and fatigue. The pathophysiology of OTS has not been entirely elucidated, and there is a lack of accurate markers for its diagnosis. Changes in hormonal responses implicated in OTS were stimulated by exercise, which has limited their interpretation. Hence, we aimed to evaluate growth hormone (GH) and prolactin responses to a gold-standard and exercise-independent stimulation test, the insulin tolerance test (ITT)...
November 16, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28952829/mental-fatigue-and-physical-and-cognitive-performance-during-a-two-bout-exercise-test
#8
Susan Vrijkotte, Romain Meeusen, Cloe Vandervaeren, Luk Buyse, Jeroen van Cutsem, Nathalie Pattyn, Bart Roelands
PURPOSE: The two bout exercise protocol has been developed to diagnose non-functional overreaching (NFO) and the 'Overtraining Syndrome' (OTS). It consists of two maximal exercise bouts separated by 4 hours. Mental fatigue negatively influences performance but the effects of its occurrence during the two bout exercise protocol have never been investigated. The aim of this study was to examine whether mental fatigue (induced during the rest period) influences physical and cognitive performance during/after the second exercise bout of the two bout exercise protocol...
September 27, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28639438/body-composition-analysis-to-study-long-term-training-effects-in-elite-male-water-polo-athletes
#9
Giovanni Melchiorri, Valerio Viero, Roberto Sorge, Tamara Triossi, Alessandro Campagna, Stella L Volpe, Dalgisio Lecis, Virginia Tancredi, Angela Andreoli
BACKGROUND: Elite water polo athletes undergo heavy training programs throughout the year, but especially to prepare major competitions, such as the Olympics. Optimal athletic performance is a result of many factors, including proper management of the intensity and volume of training, nutrition and recovery between training sessions. When training is excessive in relation to recovery may occur non functional overreaching (NFO). NFO can degenerate into overtraining syndrome (OTS) resulting in a decrease in athletic performance, with likely changes in body weight and body composition...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28597618/effects-of-resistance-training-overtraining-and-early-specialization-on-youth-athletes
#10
Benjamin K Walters, Connor R Read, A Reed Estes
INTRODUCTION: In 2014, 60 million youth ages 6-18 participated in some form of generalized athletics. 3.5 million children are injured annually participating in organized sport or recreational activities. While sound physical education can decrease the burden of youth sports injuries, the median annual physical education budget of $764 for United States elementary, middle and high schools may not allow enough flexibility to apply evidenced-based guidelines. EVIDENCE ACQUISITION: The topics were selected after a careful review of the 2016 National Strength and Conditioning Association Position Statement on Long-Term Athletic Development...
June 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28480859/the-effects-of-non-functional-overreaching-and-overtraining-on-autonomic-nervous-system-function-in-highly-trained-athletes
#11
T Kajaia, L Maskhulia, K Chelidze, V Akhalkatsi, Z Kakhabrishvili
Aim of the study was to compare the ANS functioning, as measured by heart rate variability (HRV), in athletes with non-functional overreaching (NFO) and overtraining syndrome (OTS) and in athletes without NFO/OTS. In 43 athletes with NFO/OTS, 40 athletes without NFO/OTS, as well as in 35 sedentary subjects the ANS function was evaluated with the Autonomic Balance Test, based on the HRV analysis of resting heart rate recordings. Results of the study show lower HRV and lower vagal influence along with increased sympathetic cardiovascular control in athletes with non-functional overreaching and particularly in athletes with overtraining, than in highly trained athletes without NFO/OTS...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28422588/alterations-in-redox-homeostasis-during-recovery-from-unexplained-underperformance-syndrome-in-an-elite-international-rower
#12
Nathan A Lewis, Ann Redgrave, Mark Homer, Richard Burden, Wendy Martinson, Brian Moore, Charles R Pedlar
PURPOSE: This case study of an international rower examines a diagnosis of Unexplained Under Performance Syndrome (UUPS or Overtraining Syndrome) describing a full recovery and return to elite competition the same year. METHODS: On diagnosis and 4 and 14 months post-diagnosis, detailed assessments including physiological, nutritional, and biomarkers were made. RESULTS: Clinical examination and laboratory results for haematology, biochemistry, thyroid function, immunology, vitamins and minerals were unremarkable and did not explain the presentation and diagnosis...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27966392/changes-in-cytokines-leptin-and-igf-1-levels-in-overtrained-athletes-during-a-prolonged-recovery-phase-a-case-control-study
#13
Raimo Joro, Arja Uusitalo, Keith C DeRuisseau, Mustafa Atalay
We investigated how cytokines are implicated with overtraining syndrome (OTS) in athletes during a prolonged period of recovery. Plasma IL-6, IL-10, TNF-α, IL-1β, adipokine leptin, and insulin like growth factor-1 (IGF-1) concentrations were measured in overtrained (OA: 5 men, 2 women) and healthy control athletes (CA: 5 men, 5 women) before and after exercise to volitional exhaustion. Measurements were conducted at baseline and after 6 and 12 months. Inflammatory cytokines did not differ between groups at rest...
December 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27747780/athletes-fit-but-unhealthy
#14
Philip B Maffetone, Paul B Laursen
While the words "fit" and "healthy" are often used synonymously in everyday language, the terms have entirely separate meanings. Fitness describes the ability to perform a given exercise task, and health explains a person's state of well-being, where physiological systems work in harmony. Although we typically view athletes as fit and healthy, they often are not. The global term we place on unhealthy athletes is the overtraining syndrome. In this current opinion, we propose that two primary drivers may contribute to the development of the overtraining syndrome, namely high training intensity and the modern-day highly processed, high glycemic diet...
December 2016: Sports Medicine—Open
https://www.readbyqxmd.com/read/27660501/diagnosis-and-prevention-of-overtraining-syndrome-an-opinion-on-education-strategies
#15
Jeffrey B Kreher
Overtraining syndrome is a condition of maladapted physiology in the setting of excessive exercise without adequate rest. The exact etiology and pathogenesis are unknown and being investigated. Symptoms are multisystem in nature and often representative of underlying hormonal, immunologic, neurologic, and psychologic disturbances. Unfortunately, systematic review of the literature does not clearly direct diagnosis, management, or prevention. However, given the severity of symptoms and impairment to quality of life, prevention of overtraining syndrome should be considered by all who interact with endurance athletes...
2016: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/27535991/how-much-is-too-much-part-2-international-olympic-committee-consensus-statement-on-load-in-sport-and-risk-of-illness
#16
Martin Schwellnus, Torbjørn Soligard, Juan-Manuel Alonso, Roald Bahr, Ben Clarsen, H Paul Dijkstra, Tim J Gabbett, Michael Gleeson, Martin Hägglund, Mark R Hutchinson, Christa Janse Van Rensburg, Romain Meeusen, John W Orchard, Babette M Pluim, Martin Raftery, Richard Budgett, Lars Engebretsen
The modern-day athlete participating in elite sports is exposed to high training loads and increasingly saturated competition calendar. Emerging evidence indicates that inappropriate load management is a significant risk factor for acute illness and the overtraining syndrome. The IOC convened an expert group to review the scientific evidence for the relationship of load-including rapid changes in training and competition load, competition calendar congestion, psychological load and travel-and health outcomes in sport...
September 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27360383/profiling-kynurenine-kyn-as-a-potential-immunological-marker-for-overtraining-syndrome-ots-in-elite-rowers-1464-board-117-june-2-8-00-am-9-30-am
#17
Uwe Schumann, Martina Zügel, Gunnar Treff, Marion Schneider, Dietmar Abendroth, Jürgen M Steinacker
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27289505/effect-of-physical-activity-on-igf-1-and-igfbp-levels-in-the-context-of-civilization-diseases-prevention
#18
Marta Majorczyk, Danuta Smoląg
BACKGROUND: Insulin-like growth factor 1 (IGF-1) is known as somatomedin C. This polypeptide hormone is functionally and structurally similar to insulin. IGF-1 effects on tissue by the IGF-1R and the insulin-like growth factor-binding protein also known as IGFBP. Abnormal IGF-1 and IGFBP signaling are positively correlated with a high risk of selected civilization diseases development. Physical inactivity is a one of the main causes of majority of chronic diseases and it is associated with eg...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27055481/perfectionism-and-training-distress-in-junior-athletes-a-longitudinal-investigation
#19
Daniel J Madigan, Joachim Stoeber, Louis Passfield
Perfectionistic athletes may train harder and for longer than non-perfectionistic athletes, leaving them susceptible to elevated levels of training distress. So far, however, no study has investigated the relationships between perfectionism and training distress, a key indicator of overtraining syndrome. Furthermore, no study has determined psychological predictors of overtraining syndrome. Using a two-wave design, the present study examined perfectionistic strivings, perfectionistic concerns and training distress in 141 junior athletes (mean age = 17...
March 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27031317/approach-to-the-underperforming-athlete
#20
Mary L Solomon, Amanda K Weiss Kelly
Children and adolescents who participate in intense sports training may face physical and psychologic stresses. The pediatric health care provider can play an important role in monitoring an athlete's preparation by obtaining a proper sports history, assessing sleep hygiene, discussing nutrition and hydration guidelines, and evaluating physiologic causes of fatigue. Educating parents and athletes on the potential risks of high-intensity training, inadequate rest and sleep, and a poor diet may improve the athlete's performance and prevent symptoms of overtraining syndrome...
March 2016: Pediatric Annals
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