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Sleep and Sport

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https://www.readbyqxmd.com/read/30326782/evening-electronic-device-use-and-sleep-patterns-in-athletes
#1
Maddison J Jones, Brian Dawson, Daniel F Gucciardi, Peter R Eastwood, Joanna Miller, Shona L Halson, Ian C Dunican, Peter Peeling
The present study aimed to investigate pre-sleep behaviours (including evening electronic device use) and sleep quantity in well-trained athletes. Seventy well-trained athletes (44 females, 26 males) aged 21 ± 4 y from a range of team and individual sports were asked to complete an online sleep diary for 7 days. The sleep diary included questions about pre-sleep behaviours (e.g. napping, caffeine intake), electronic device use in the 2 h prior to bedtime (e.g. type of device and duration of use) and sleep (e...
October 16, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/30282598/relation-of-anterior-cruciate-ligament-tears-to-potential-chronic-cardiovascular-diseases
#2
William P Meehan, Marc G Weisskopf, Supriya Krishnan, Caitlin McCracken, Ross Zafonte, Herman A Taylor, Aaron Baggish, Alvaro Pascual-Leone, Lee M Nadler, Frank E Speizer
We have enrolled a cohort of former National Football League players (n = 3,506) who played since 1960 to assess potential long term health consequences associated with participating in the sport. Each participant has completed a self-administered questionnaire including reporting of physician-diagnosed health conditions. One of the early assessments was to evaluate whether anterior cruciate ligament (ACL) tears were associated with later life co-morbidities, including cardiovascular effects. We used Cox proportional hazards to estimate hazard ratios (HR) for joint replacement surgeries, myocardial infarction, sleep apnea, arthritis, dementia, and stroke by history of ACL tear during their professional career...
September 7, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/30277893/no-difference-in-return-to-sport-and-other-outcomes-between-operative-and-nonoperative-treatment-of-medial-epicondyle-fractures-in-pediatric-upper-extremity-athletes
#3
Derek Paul Axibal, Patrick Carry, Anne Skelton, Stephanie Watson Mayer
OBJECTIVE: Compare outcomes of operative and nonoperatively managed medial epicondyle fractures in upper-extremity athletes. DESIGN: Retrospective chart review and phone survey. SETTING: Level 1, tertiary-referral pediatric hospital. PATIENTS: Propensity scores (probability of operative treatment) were estimated from a logistic regression model that included sex, age, displacement, limb dominance, and injury severity (presence of an additional fracture, nerve injury, or elbow dislocation)...
October 1, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/30276172/brief-ideas-about-evidence-based-recovery-in-team-sports
#4
REVIEW
Julio Calleja-González, Juan Mielgo-Ayuso, Jaime Sampaio, Anne Delextrat, Sergej M Ostojic, Diego Marques-Jiménez, Iñaki Arratibel, Braulio Sánchez-Ureña, Gregory Dupont, Xavi Schelling, Nicolás Terrados
Performance in team sports is the expression of complex, dynamic, interactive, and multidimensional processes. It is now well-established that optimum recovery after practice or match is a key factor of team sport performance. During season and tournaments, improving recovery could offer an advantage for following performance. As a consequence of the professionalization of different roles in staffs, new particular roles have been developed within the team sports physician core in order to improve recovery protocols...
August 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/30244210/physical-activity-related-injuries-among-university-students-a-multicentre-cross-sectional-study-in-china
#5
Yang Gao, Weicong Cai, Lijie Gao, Jingjing Wang, Jiehui Liang, Heather Kwok, Cunxian Jia, Liping Li
OBJECTIVES: This study aimed to investigate the epidemiological characteristics and preliminarily explore possible risk factors of physical activity-related injury (PARI) occurrences among Chinese university students via a multicentre mixed survey. DESIGN: Cross-sectional study. PARTICIPANTS: A total of 4758 undergraduates graded 1-3 in nine universities in three Chinese cities were enrolled via cluster random sampling and completed the self-administered online questionnaires during March and April 2017...
September 21, 2018: BMJ Open
https://www.readbyqxmd.com/read/30237660/comparison-of-the-effect-of-intermittent-hypoxic-training-vs-the-live-high-train-low-strategy-on-aerobic-capacity-and-sports-performance-in-cyclists-in-normoxia
#6
Miłosz Czuba, Olga Fidos-Czuba, Kamila Płoszczyca, Adam Zając, Józef Langfort
The aim of the study was to compare the effect of intermittent hypoxic training (IHT) and the live high, train low strategy on aerobic capacity and sports performance in off-road cyclists in normoxia. Thirty off-road cyclists were randomized to three groups and subjected to 4-week training routines. The participants from the first experimental group were exposed to normobaric hypoxia conditions (FiO2 = 16.3%) at rest and during sleep (G-LH-TL; n=10; age: 20.5 ± 2.9 years; body height 1.81 ± 0.04 m; body mass: 69...
March 2018: Biology of Sport
https://www.readbyqxmd.com/read/30212507/variables-associated-with-the-oral-impact-on-daily-performance-of-adults-in-the-state-of-s%C3%A3-o-paulo-a-population-based-study
#7
Giovana Renata Gouvêa, Jaqueline Vilela Bulgareli, Luciene Luvizotto David, Gláucia Maria Bovi Ambrosano, Karine Laura Cortellazzi, Luciane Miranda Guerra, Antonio Carlos Frias, Marcelo de Castro Meneghim, Antonio Carlos Pereira
OBJECTIVE: This study aimed to assess the oral impact on daily performance and its association with sociodemographic characteristics, tooth pain, need for prosthesis, and periodontal disease of adults in the state of São Paulo, Brazil. METHODS: This was a cross-sectional epidemiological study with secondary data obtained from the Oral Health Conditions Project- 2015 conducted in 163 municipalities in the state of São Paulo with the participation of 17,560 individuals...
2018: PloS One
https://www.readbyqxmd.com/read/30210383/anxiety-and-psycho-physiological-stress-response-to-competitive-sport-exercise
#8
Gaelle Tanguy, Emmanuel Sagui, Zagnoli Fabien, Charles Martin-Krumm, Frédéric Canini, Marion Trousselard
Introduction: Sport is recognized as beneficial for health. In certain situation of practice, it nevertheless appears likely to induce a stress response. Anxiety is a stress response-modulating factor. Our objective is to characterize the role of anxiety in the stress response induced by a selective physical exercise. Method: Sixty-three young male military conducted a selective sporting running event (a 8-km commando-walk) and were recorded the day before, the day of the race, and the day after. The variables were psychometric [personality questionnaires, coping and anxious/stress state, and physiological (nocturnal heart rate variability and actigraphy)]...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/30194259/prevalence-and-behavioural-associations-of-unintentional-injuries-among-chinese-college-students-a-50-university-population-based-study
#9
Dan Wu, Tingzhong Yang, Randall R Cottrell, Huan Zhou, Xueying Feng
OBJECTIVE: To assess the prevalence, demographic characteristics and behavioural correlates of unintentional injuries among Chinese college students. METHODS: A cross-sectional multistage survey sampling process was conducted among 11 770 undergraduates from 50 universities in China. Students were asked to report different types of unintentional injuries that required medical attention from a doctor over the past year. The χ² test and multiple logistic regression analysis were used to identify factors associated with these injuries...
September 7, 2018: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/30186317/adult-gross-motor-learning-and-sleep-is-there-a-mutual-benefit
#10
REVIEW
Monica Christova, Hannes Aftenberger, Raffaele Nardone, Eugen Gallasch
Posttraining consolidation, also known as offline learning, refers to neuroplastic processes and systemic reorganization by which newly acquired skills are converted from an initially transient state into a more permanent state. An extensive amount of research on cognitive and fine motor tasks has shown that sleep is able to enhance these processes, resulting in more stable declarative and procedural memory traces. On the other hand, limited evidence exists concerning the relationship between sleep and learning of gross motor skills...
2018: Neural Plasticity
https://www.readbyqxmd.com/read/30180156/duration-of-physical-activity-sitting-sleep-and-the-risk-of-total-knee-replacement-among-chinese-in-singapore-the-singapore-chinese-health-study
#11
Ying Ying Leung, Hamid Rahmatullah Bin Abd Razak, Mohammad Talaei, Li-Wei Ang, Jian-Min Yuan, Woon-Puay Koh
OBJECTIVES: While the effect of physical activity on knee osteoarthritis (KOA) remains controversial, how sitting and sleep durations affect KOA is unknown. We evaluated the association between durations of physical activity, sitting and sleep, and incidence of total knee replacement (TKR) due to severe KOA. METHODS: We used data from the Singapore Chinese Health Study, a prospective cohort of 63,257 Chinese, aged 45-74 years at recruitment from 1993-1998. Height, weight, lifestyle factors, hours of sitting and sleep per day, and hours of moderate activity, strenuous sports or vigorous work per week were assessed through in-person interviews using structured questionnaires...
2018: PloS One
https://www.readbyqxmd.com/read/30124307/caffeinated-energy-drink-use-by-u-s-adolescents-aged-13-17-a-national-profile
#12
Kathleen E Miller, Kurt H Dermen, Joseph F Lucke
The present study examined the national prevalence and distribution of adolescent use of caffeinated energy drinks, assessing variations in sociodemographic characteristics, personality traits, lifestyles, and patterns of alcohol and caffeine use. A cross-sectional survey was conducted in May 2014, using a nationally representative sample of 1,032 U.S. early (aged 13-15; n = 602) and middle adolescents (aged 16-17; n = 430). Nearly two thirds of teens reported ever using energy drinks; 41% had done so recently, that is, in the past 3 months...
September 2018: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/30102909/weight-gain-and-health-affliction-among-former-national-football-league-players
#13
Timothy W Churchill, Supriya Krishnan, Marc Weisskopf, Brandon A Yates, Frank E Speizer, Jonathan H Kim, Lee E Nadler, Alvaro Pascual-Leone, Ross Zafonte, Aaron L Baggish
BACKGROUND: Professional American-style football players are among the largest athletes across contemporary sporting disciplines. Weight gain during football participation is common, but the health implications of this early-life weight gain remain incompletely understood. We sought to define weight trajectories of former professional American-style football athletes and to establish their relationship with 5 common health afflictions (cardiovascular disease, cardiometabolic disease, neurocognitive impairment, sleep apnea, and chronic pain)...
August 11, 2018: American Journal of Medicine
https://www.readbyqxmd.com/read/30061097/sleeping-habits-of-adolescents-in-relation-to-their-physical-activity-and-exercise-output-results-from-the-elspac-study
#14
Jan Máchal, Filip Zlámal, Lubomír Kukla, Jan Švancara, Hynek Pikhart, Julie Bienertová-Vašků
BACKGROUND: Little is known about the effects of physical activity and fitness on sleep timing parameters in adolescence. METHODS: We investigated the development of sleep timing between age 8 and 15 and its association with physical fitness at age 15 in 787 adolescents (408 males, 379 females). Physical fitness was measured using the physical work capacity (PWC) protocol. Information on sport activity was collected at ages 11 and 15. Finally, the contribution of other covariates (sex, body mass index (BMI), parental education and occupational skill level) to the association between sleep parameters and physical fitness was evaluated...
July 30, 2018: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/30058576/sleep-duration-and-factors-related-to-sleep-loss-in-3-14-year-old-children-in-beijing-a-cross-sectional-survey
#15
Xiao-Dan Li, Jun Tai, Zhi-Fei Xu, Gui-Xiang Wang, Yun-Xiao Wu, Jiang-Nan Du, Jie Zhang, Xiao-Xia Peng, Xin Ni
Background: It is known that short sleep duration adversely affects children's behavior and physical development. This study aimed to investigate the status of sleep duration in 3-14-year-old children in Beijing and explore the related factors of sleep loss with them. Methods: In this study, a cross-sectional study of random stratified cluster sampling was conducted on 3-14-year-old children and adolescents in Beijing. According to the proportion of children in each district and school, the final cohort included a total of 11 kindergartens, 7 primary schools, and 8 junior high schools from 7 districts of Beijing...
August 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/30054756/the-variability-of-sleep-among-elite-athletes
#16
REVIEW
Mathieu Nedelec, Anis Aloulou, François Duforez, Tim Meyer, Gregory Dupont
Practicing sport at the highest level is typically accompanied by several stressors and restrictions on personal life. Elite athletes' lifestyle delivers a significant challenge to sleep, due to both the physiological and psychological demands, and the training and competition schedules. Inter-individual variability of sleep patterns (e.g., sleep requirements, chronotype) may have important implications not only for recovery and training schedules but also for the choice of measures to possibly improve sleep...
July 27, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/30051727/process-evaluation-of-an-early-care-and-education-intervention-the-california-childhood-obesity-research-demonstration-study-ca-cord
#17
Shih-Fan Lin, Amy Binggeli-Vallarta, Griselda Cervantes, Janette Angulo, Jamie S Moody, Thomas L McKenzie, Lucy A Horton, Guadalupe X Ayala
Given the widespread use of out-of-home child care in the United States, early care and education (ECE) providers offer ideal settings to promote health behaviors among Hispanic/Latino children whose obesity prevalence remains high. This study details the process evaluation of ECE intervention strategies of a childhood obesity research demonstration study (California Childhood Obesity Research Demonstration [CA-CORD]) to prevent and control obesity among Hispanic/Latino children aged 2 to 12 years. Participating ECE providers received the Nutrition and Physical Activity Self-Assessment for Child Care (NAP SACC) materials and action planning sessions with a trained interventionist; Sports, Play, and Active Recreation for Kids (SPARK) physical activity (PA), health behavior, and body mass index assessment trainings; and health behavior toolkit, cooking kit, water dispensers, and posters to promote healthy eating, PA, water consumption, and quality sleep...
July 27, 2018: Health Promotion Practice
https://www.readbyqxmd.com/read/30048409/long-term-links-between-physical-activity-and-sleep-quality
#18
Thalia Semplonius, Teena Willoughby
PURPOSE: Findings from cross-sectional research indicate that the relationship between sleep quality and physical activity is mixed. For research that does indicate a significant association, the interpretation of the finding most often is that physical activity leads to better sleep, or less frequently, that better sleep leads to more involvement in physical activity (see sleep deprivation studies). Cross-sectional studies, however, are not able to assess the direction of these effects, and experimental studies have tested only one direction of the effects...
July 13, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/30039260/the-frequency-of-post-traumatic-stress-disorder-symptoms-in-athletes-with-and-without-sports-related-concussion
#19
Heather E Brassil, Anthony P Salvatore
BACKGROUND: Purpose of this study is to investigate the presence and frequency of post-traumatic stress disorder (PTSD) symptoms in post-concussed (PC) athletes compared to a group of healthy control (HC) athletes. RESEARCH DESIGN AND METHOD: A pre and post-test group design was used to compare a post-concussed group to a matched healthy control group of athletes. An archival database which included PC (n = 62) and HC (n = 62) participants matched on age, years of education and gender who completed a test battery at baseline and post injury, The test battery was comprised of a neurocognitive assessment, self-reported symptom inventory and PTSD symptom questionnaire...
July 23, 2018: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/30033774/lifestyle-and-demographic-factors-associated-with-human-semen-quality-and-sperm-function
#20
Xiao Shi, Carol Pui Shan Chan, Tarah Waters, Ling Chi, David Yiu Leung Chan, Tin-Chiu Li
In this study, we sought to investigate the effect of lifestyle and demographic factors on classic and functional semen parameters. Three hundred and twenty-eight subjects who underwent semen analysis were recruited. Routine SA, sperm vitality, acrosome reaction (AR) assay and sperm DNA fragmentation index (DFI) were analyzed. Demographic and lifestyle information, including (1) BMI, (2) current smoking and alcohol drinking frequency, (3) sleep habits, (4) daily fluid intake, (5) weekly meat intake, (6) sports frequency, (7) trouser cell phone use, (8) age, and (9) abstinence time, were collected...
October 2018: Systems Biology in Reproductive Medicine
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