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Sleep and Sport

Louis-Philippe Boulet, Julie Turmel
In the general population, particularly in individuals with asthma, cough is a common symptom, often reported after exertion, although regular exercise may be associated with a reduction in the prevalence of cough. In athletes, exercise-induced cough is also a particularly frequent symptom. The main etiologies of cough in athletes are somewhat similar to non-athletes, including asthma/airway hyperresponsiveness, upper airways disorders such as allergic or non-allergic rhinitis, and exercise-induced laryngeal obstruction, although these conditions are more frequently observed in athletes...
February 13, 2019: Pulmonary Pharmacology & Therapeutics
Adithya Balasubramanian, Nannan Thirumavalavan, Ashwin Srivatsav, Justin Yu, Larry I Lipshultz, Alexander W Pastuszak
INTRODUCTION: Testosterone-boosting supplements (T-Boosters) are prominently featured on, with numerous dedicated pages and claims that they "naturally" increase testosterone levels. AIM: To evaluate the highest rated and frequently reviewed T-Boosters on to facilitate patient counseling regarding marketing myths, T-Booster formulations, and evidence for efficacy and safety. METHODS: The Amazon marketplace was queried using the key words "testosterone" + "booster," with default search settings and ranking items based on relevance...
February 2019: Journal of Sexual Medicine
Michael John Hamlin, Danielle Wilkes, Catherine A Elliot, Catherine A Lizamore, Yaso Kathiravel
With increased professionalism in sport there has been a greater interest in the scientific approach to training and recovery of athletes. Applying appropriate training loads along with adequate recovery, is essential in gaining maximal adaptation in athletes, while minimizing harm such as overreaching, overtraining, injury and illness. Although appropriate physical stress is essential, stress for many athletes may come from areas other than training. Stress from may arise from social or environmental pressure, and for many athletes who combine elite athletic training with university study, academic workloads create significant stress which adds to the constant pressure to perform athletically...
2019: Frontiers in Physiology
Jacopo Antonino Vitale, Giuseppe Banfi, Marco Sias, Antonio La Torre
The correct expression of circadian rhythmicity is crucial for the body homeostasis. The rest-activity circadian rhythms (RARs) are involved in the control of the sleep-wake cycle and altered RARs could lead to a compromised health status. Many studies focused on examining sleep behavior and circadian rhythms in physically active subjects or athletes but, unexpectedly, no data on RARs are available. Therefore, we studied the existence of the RAR in athletes and the possible difference in RAR's characteristics among sport disciplines...
February 14, 2019: Chronobiology International
Robert C Kollmorgen, Carolyn A Hutyra, Cindy Green, Brian Lewis, Steven A Olson, Richard C Mather
BACKGROUND: Legacy hip outcome measures may be burdensome to patients and sometimes yield floor or ceiling effects. Patient-Reported Outcomes Measurement Information System (PROMIS) computer adaptive tests (CATs) allow for low-burden data capture and limited ceiling and floor effects. PURPOSE/HYPOTHESIS: The purpose of this study was to determine whether the PROMIS CAT domains demonstrate correlation against commonly used legacy patient-reported outcome measures in a population of patients presenting to a tertiary care hip preservation center...
February 12, 2019: American Journal of Sports Medicine
John A Sampson, Andrew Murray, Sean Williams, Adam Sullivan, Hugh H K Fullagar
Sampson, JA, Murray, A, Williams, S, Sullivan, A, and Fullagar, HHK. Subjective wellness, acute:chronic workloads and injury risk in college football. J Strength Cond Res XX(X): 000-000, 2018-Acute:chronic workload ratios (ACWRs) are associated with injury risk across team sports. In this study, one season of workload and wellness data from 42 collegiate football players were retrospectively analyzed. Daily 7:21 day exponentially weighted moving average (EWMA) ACWRs were calculated, and z-score fluctuations ("normal," "better," and "worse") in sleep, soreness, energy, and overall wellness were assessed relative to the previous day ACWRs and considered as an interactive effect on the risk of noncontact injury within 0-3 days...
February 7, 2019: Journal of Strength and Conditioning Research
E M Riso, K Mägi, S Vaiksaar, L Toplaan, J Jürimäe
AIM: We explored the cognitive abilities, health behaviour and cardiorespiratory fitness of preschool Estonian children aged 6-7 and any association with parental education, attending sports clubs and gender. METHODS: Data were obtained from 256 children recruited from 13 randomly chosen kindergartens in Tartu, Estonia. Cognitive abilities were assessed using the modified Boehm Test of Basic Concepts - Third Edition. Objective physical activity (PA) intensity and sedentary levels were measured over seven days by accelerometry...
February 11, 2019: Acta Paediatrica
Giorgio Ciprandi, Matteo Gelardi
The nose exerts many functions, mainly for the respiration and the olfaction and represents the first doorway for the oxygen, but also for pathogens. The present Supplement reports some clinical experiences concerning the use of a new internal nasal dilator in different settings, including nasal obstructive disorders, obstructive sleep apnea syndrome, continuous positive active pressure (CPAP), and sport activity. The outcomes support the concept that a healthy nose should be maintained ever patent and free from secretions, as impaired nasal function can significantly affect quality of life...
January 14, 2019: Acta Bio-medica: Atenei Parmensis
Ingrid Andreasson, Gunilla Kjellby-Wendt, Monika Fagevik-Olsén, Jón Karlsson, Gunnel Carlsson
PURPOSE: The aim of this study was to explore the everyday life experiences of people suffering from a symptomatic, malunited, distal radius fracture. METHOD: Qualitative interviews were conducted with twenty respondents, median age 59 [16-85] years. The interviews were subjected to qualitative content analysis. RESULTS: The result, presented as one main theme with categories and subcategories, describes the impact of the injury. Everyday life was affected in all participants, very much in a few highly valued activities such as sports and work, whenever the hand was used, or even at rest...
January 29, 2019: Disability and Rehabilitation
Elizabeth Dean
To maximize the performance of an athlete, a team of experts work together to ensure each athlete achieves the maximal benefit from their prescribed exercise conditioning programs. In addition to the exercise specialists, the athlete's team frequently includes psychologists (who address performance anxiety, stress, and depression), counselors (who address smoking cessation, reduction or elimination of alcohol consumption if necessary, weight optimization, and optimal sleep), and nutritionists (who address optimal nutrition and body mass attributes)...
December 2018: Journal of Human Kinetics
Kathleen H Miles, Brad Clark, Peter M Fowler, Joanna Miller, Kate L Pumpa
OBJECTIVES: The primary aims of the present study were to assess the sleep hygiene knowledge of high performance team sport coaches and sports science support staff; the sleep practices these individuals implement with athletes; and the barriers to the more frequent use of these practices. DESIGN: Cross-sectional observational study. METHODS: A sample of 86 Australian coaches and sports science support staff working within high performance team sport volunteered to complete a four-part questionnaire, including the Sleep Beliefs Survey used to assess sleep hygiene knowledge...
January 19, 2019: Journal of Science and Medicine in Sport
Jason J Jones, Gregory W Kirschen, Sindhuja Kancharla, Lauren Hale
OBJECTIVES: In sports, decreased sleep duration is generally associated with poorer performance compared to adequate or enhanced sleep duration. Yet, these findings have primarily been taken from small numbers of athletes performing outside of real games or competitions. It remains unknown how acute decreased sleep duration impacts real-game performance among professional athletes. Here, we merged 2 publicly available datasets to jointly measure late-night social media activity (a proxy for sleep deprivation) and next-day game performance...
February 2019: Sleep Health
Sandro J Corti, Natalie M Pizzimenti, Matthew T McCarthy, Kate M Essad, Jeffrey S Kutcher
Despite growing research on concussion, there is minimal evidence comparing the acute presentation of concussion between pediatric and adult patients. This cross-sectional study compares injury characteristics, symptoms, and neurologic examination in sport-related concussion based on age. Patients presenting to an outpatient sports neurology clinic for initial assessment of concussion within 7 days of injury were divided into 2 groups, 18 and older (n = 28) and 17 and younger (n = 107). There were no significant differences between pediatric and adult patients in any score of the Sport Concussion Assessment Tool-3rd Edition symptom scale, neurologic examination category, pertinent elements of past medical history, or characteristics of the concussion...
January 22, 2019: Journal of Child Neurology
David R Howell, Jessie R Oldham, Anna N Brilliant, William P Meehan
Our objective was to identify factors associated with trouble falling asleep postconcussion. Patients seen for care after sport-related concussion were assessed ≤10 days postinjury and were between 6 and 19 years of age. Outcomes included symptoms (Post-Concussion Symptom Scale), postural steadiness, missed school, and medical history. There were 261 patients (49% female; mean age=14.8±2.5 years): 45% reported trouble falling asleep. A greater proportion of patients who reported trouble falling asleep missed ≥2 days of school (64% vs 49%; P = ...
January 22, 2019: Journal of Child Neurology
Wendy Y Huang, Stephen H S Wong, Cindy H P Sit, Martin C S Wong, Raymond K W Sum, Sam W S Wong, Jane J Yu
Background/objective: The Active Healthy Kids 2018 Hong Kong Report Card provides evidence-based assessment across 12 indicators of physical activity behaviors, sleep, and related community and government initiatives for children and youth. Methods: The systematic development process provided by the Active Healthy Kids Global Alliance was used. The best available data from the past 10 years were reviewed by a panel of experts. According to predefined benchmarks, letter grades were assigned to 12 indicators (Overall Physical Activity, Organized Sport Participation, Active Play, Active Transportation, Sedentary Behaviors, Physical Fitness, Sleep, Family, School, Community and Environment, Government, and Obesity)...
January 2019: Journal of Exercise Science and Fitness
Maria-Raquel G Silva, Teresa Paiva, Hugo-Henrique Silva
BACKGROUND: Elite athletes have to travel long-haul distances and cross multiple meridians; thus, a unique syndrome named as jet-lag is induced. Furthermore, traveller athletes are submitted to several factors negatively affecting their well-being and athletic performance. This qualitative descriptive study aims to promote safely and future promising participations of elite athletes in great events, such as the next Olympic Games 2020 Tokyo, based on the chronobiology of jet-lag, factors affecting the traveller athlete and previous experiences from the 2014 FIFA World Cup Brazil, the 2018 FIFA World Cup Russia and the Olympic Games Rio 2016...
January 16, 2019: Journal of Sports Medicine and Physical Fitness
Rikki Keen
Soccer is the world's most popular sport. As the sport has grown, so have the physical demands and the search for ways to edge out the competition with the use of sports science and nutrition. The demands, which include intense training, ≥90 minutes matches, congested fixtures, and travel, lead to increased energy and nutrient requirements, stress on the body, and risk of impaired sleep cycles. Identifying key areas to enhance a player's performance is an ongoing effort because of individual differences. Moreover, new information is being discovered via research, and advancing technology to measure performance is always evolving...
December 2018: American Journal of Orthopedics
Jolanta Czuczejko, Łukasz Sielski, Bartosz Woźniak, Alina Woźniak, Karolina Szewczyk-Golec
Melatonin supplementation has been proved to have antioxidant and anti-inflammatory effects in humans. The aim of the study was to estimate the influence of a 30-day melatonin supplementation on oxidative and inflammatory state in the blood of intense training professional athletes. The study was conducted in 47 football players, 19 rowers, and 15 adults who did not practice sports (control group). Blood samples were taken once from the control group and twice from the athletes: before and after 30-day melatonin administration (5 mg daily before sleep)...
January 16, 2019: Free Radical Research
Eric D Nussbaum, Jaynie Bjornaraa, Charles J Gatt
BACKGROUND: Bony stress injuries (BSIs) are common among adolescents involved in high school sports. A better understanding of factors that contribute to adolescent BSI is needed to target preventative measures. HYPOTHESIS: Individuals who suffer a BSI will demonstrate significant differences in training methods, sleep, diet, and history of injury compared with a healthy, noninjured control group. STUDY DESIGN: Descriptive epidemiologic study...
January 15, 2019: Sports Health
Susan R Harris
This short communication provides an update on childhood psychogenic movement disorders (PMD), focusing on descriptive studies and case reports from 2008 to 2018. Known also as functional movement/motor disorders, PMD diagnoses are relatively common in adults but less so in children. In group studies over the past decade, sample prevalence of childhood PMD ranged from 2.8 to 23.1%, with a higher percentage of girls in most studies (consistent with adult PMD literature). Common types of PMD included tremor (32...
January 11, 2019: European Journal of Pediatrics
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