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https://www.readbyqxmd.com/read/29651858/sleep-related-issues-for-recovery-and-performance-in-athletes
#1
Sarah Kölling, Rob Duffield, Daniel Erlacher, Ranel Venter, Shona L Halson
The body of research that reports the relevance of sleep in high-performance sports is growing steadily. While the identification of sleep cycles and diagnosis of sleep disorders is limited to lab-based assessment via polysomnography, the development of activity-based devices estimating sleep patterns provides greater insight into the sleep behaviour of athletes in ecological settings. Overall, small sleep quantity and/or poor quality appears to exist in many athletic populations, though this may be related to training and competition context...
April 13, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29629966/sleep-and-the-athlete
#2
George G A Pujalte, Holly J Benjamin
No abstract text is available yet for this article.
April 2018: Current Sports Medicine Reports
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
#3
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/29619798/seasonal-player-wellness-and-its-longitudinal-association-with-internal-training-load-study-in-elite-volleyball
#4
Filipe M Clemente, Bruno Mendes, José M Palao, André Silvério, Sandro Carriço, Francisco Calvete, Fábio Y Nakamura
BACKGROUND: Monitoring training load is critical to minimize the risk of overreaching, injury or illness. The purpose of this study was to assess the relationships and variance between perceived internal load and wellness status of elite male volleyball. METHODS: Thirteen elite volleyball players were studied during a full competitive season (nine months, 237 training sessions and 37 official matches). Perceived exertion, muscle soreness, stress, fatigue and sleep quality levels were daily measured using session RPE and the Hopper Questionnaire...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29605797/self-reported-sleep-duration-affects-tandem-gait-but-not-steady-state-gait-outcomes-among-healthy-collegiate-athletes
#5
David R Howell, Brant Berkstresser, Francis Wang, Thomas A Buckley, Rebekah Mannix, Alexandra Stillman, William P Meehan
BACKGROUND: Sleep deficits are associated with motor and cognitive function deficits, even in the absence of a recent concussion. RESEARCH QUESTION: Does the amount of self-reported sleep prior to pre-season concussion testing affect single-task and dual-task instrumented steady-state gait and timed tandem gait test performance? METHODS: One hundred and fourteen healthy collegiate athletes (mean age 18.8 ± 0.7 years; 60% female) reported the amount of sleep they received during the prior night and completed a timed tandem gait test and an instrumented assessment of steady-state gait in both single-task and dual-task conditions...
March 26, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29601343/a-preliminary-investigation-of-accelerometer-derived-sleep-and-physical-activity-following-sport-related-concussion
#6
Alicia M Sufrinko, Erin K Howie, R J Elbin, Michael W Collins, Anthony P Kontos
OBJECTIVE: Describe changes in postconcussion activity levels and sleep throughout recovery in a sample of pediatric sport-related concussion (SRC) patients, and examine the predictive value of accelerometer-derived activity and sleep on subsequent clinical outcomes at a follow-up clinic visit. SETTING: Outpatient concussion clinic. PARTICIPANTS: Twenty athletes aged 12 to 19 years with diagnosed SRC. METHODS: Prospective study including visit 1 (<72 hours postinjury) and visit 2 (6-18 days postinjury)...
March 29, 2018: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/29560308/connectomic-markers-of-symptom-severity-in-sport-related-concussion-whole-brain-analysis-of-resting-state-fmri
#7
Nathan W Churchill, Michael G Hutchison, Simon J Graham, Tom A Schweizer
Concussion is associated with significant adverse effects within the first week post-injury, including physical complaints and altered cognition, sleep and mood. It is currently unknown whether these subjective disturbances have reliable functional brain correlates. Resting-state functional magnetic resonance imaging (rs-fMRI) has been used to measure functional connectivity of individuals after traumatic brain injury, but less is known about the relationship between functional connectivity and symptom assessments after a sport concussion...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29530373/sleep-disorder-risk-factors-among-student-athletes
#8
Takafumi Monma, Akira Ando, Tohru Asanuma, Yutaka Yoshitake, Goichiro Yoshida, Taiki Miyazawa, Naoyuki Ebine, Satoko Takeda, Naomi Omi, Makoto Satoh, Kumpei Tokuyama, Fumi Takeda
OBJECTIVE: To clarify sleep disorder risk factors among student athletes, this study examined the relationship between lifestyle habits, competition activities, psychological distress, and sleep disorders. METHODS: Student athletes (N = 906; male: 70.1%; average age: 19.1 ± 0.8 years) in five university sports departments from four Japanese regions were targeted for analysis. Survey items were attributes (age, gender, and body mass index), sleep disorders (recorded through the Pittsburgh Sleep Quality Index), lifestyle habits (bedtime, wake-up time, smoking, drinking alcohol, meals, part-time jobs, and use of electronics after lights out), competition activities (activity contents and competition stressors), and psychological distress (recorded through the K6 scale)...
April 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29502302/sleep-duration-body-composition-dietary-profile-and-eating-behaviours-among-children-and-adolescents-a-comparison-between-portuguese-acrobatic-gymnasts
#9
Maria-Raquel G Silva, Hugo-Henrique Silva, Teresa Paiva
Sleep, body composition and dietary intake are crucial for athletes' health and performance but have never been investigated in acrobatic gymnasts. Thus, this study aimed to evaluate sleep, body composition, dietary intake and eating behaviours of acrobatic gymnasts. Using a cross-sectional study, 82 Portuguese acrobatic gymnasts (12.8 ± 3.1 years, 61 females and 21 males) were evaluated during the competitive period to collect training data, sleep duration, body composition, dietary intake and eating behaviours before, during and after practices...
March 3, 2018: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29484576/a-subjective-assessment-of-the-prevalence-and-factors-associated-with-poor-sleep-quality-amongst-elite-japanese-athletes
#10
Masako Hoshikawa, Sunao Uchida, Yuichi Hirano
BACKGROUND: The amount, quality, and timing of sleep are considered important for athletes' ability to train, maximize training responses, and recover. However, some research has shown that elite athletes do not obtain sufficient sleep. Based on this background, researchers recently started to assess and manage sleep in elite athletes. The purpose of this study was to clarify the prevalence of poor sleep quality and its associated factors amongst elite Japanese athletes. METHODS: Eight hundred and ninety-one candidates for the 17th Asian Games Incheon 2014, who were over 20 years old, participated in this study...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29482452/sleep-and-stress-hormone-responses-to-training-and-competition-in-elite-female-athletes
#11
Shannon O'Donnell, Steve Bird, Gregory Jacobson, Matthew Driller
Stress hormone and sleep differences in a competition versus training setting are yet to be evaluated in elite female team-sport athletes. The aim of the current study was to evaluate salivary cortisol and perceptual stress markers during competition and training and to determine the subsequent effects on sleep indices in elite female athletes. Ten elite female netball athletes (mean ± SD; age: 23 ± 6 years) had their sleep monitored on three occasions; following one netball competition match (MATCH), one netball match simulation session (TRAIN), and one rest day (CONTROL)...
February 26, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29478381/relationships-between-training-load-sleep-duration-and-daily-well-being-and-recovery-measures-in-youth-athletes
#12
Thomas Sawczuk, Ben Jones, Sean Scantlebury, Kevin Till
PURPOSE: To assess the relationships between training load, sleep duration, and 3 daily well-being, recovery, and fatigue measures in youth athletes. METHODS: Fifty-two youth athletes completed 3 maximal countermovement jumps (CMJs), a daily well-being questionnaire (DWB), the perceived recovery status scale (PRS), and provided details on their previous day's training loads (training) and self-reported sleep duration (sleep) on 4 weekdays over a 7-week period. Partial correlations, linear mixed models, and magnitude-based inferences were used to assess the relationships between the predictor variables (training and sleep) and the dependent variables (CMJ, DWB, and PRS)...
February 24, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29425698/assessment-of-sleep-quantity-and-sleep-disturbances-during-recovery-from-sports-related-concussion-in-youth-athletes
#13
Donna L Murdaugh, Kim E Ono, Andrew Reisner, Thomas G Burns
OBJECTIVE: To determine the relationship between sleep quantity and sleep disturbances on symptoms and neurocognitive ability at the acute phase (<7 days) and post-sports-related concussion (SRC; >21 days). DESIGN: Prospective inception cohort study SETTING: General community setting of regional middle and high schools. PARTICIPANTS: Sample included 528 youth athletes with SRC and 443 controls ages 10-18. MAIN OUTCOME MEASURES: Athletes completed the Immediate Post-Concussive Assessment and Cognitive Testing (ImPACT) battery...
February 6, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29420685/gender-differences-in-symptom-reporting-on-baseline-sport-concussion-testing-across-the-youth-age-span
#14
Rosemarie Scolaro Moser, Lauren Olek, Philip Schatz
Background: Little is known regarding gender differences in concussion symptom reporting developmentally across the age span, specifically in pre-adolescent athletes. The present study asks: Do boys and girls differ in symptom reporting across the pre-adolescent to post-adolescent age span? Method: This retrospective study utilized baseline assessments from 11,695 10-22 year-old athletes assigned to 3 independent groups: Pre-adolescent 10-12 year olds (n = 1,367; 12%), Adolescent 13-17 year olds (n = 2,974; 25%), and Late Adolescent 18-22 year olds (n = 7,354; 63%)...
February 6, 2018: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/29420350/energy-drinks-a-contemporary-issues-paper
#15
John P Higgins, Kavita Babu, Patricia A Deuster, Jane Shearer
Since their introduction in 1987, energy drinks have become increasingly popular and the energy drink market has grown at record pace into a multibillion-dollar global industry. Young people, students, office workers, athletes, weekend warriors, and service members frequently consume energy drinks. Both health care providers and consumers must recognize the difference between energy drinks, traditional beverages (e.g., coffee, tea, soft drinks/sodas, juices, or flavored water), and sports drinks. The research about energy drinks safety and efficacy is often contradictory, given the disparate protocols and types of products consumed: this makes it difficult to draw firm conclusions...
February 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29420135/impaired-sleep-mediates-the-negative-effects-of-training-load-on-subjective-well-being-in-female-youth-athletes
#16
Andrew Watson, Stacey Brickson
BACKGROUND: Although increased training load (TL) and impaired sleep are associated with decreases in subjective well-being in adult athletes, these relationships among female youth athletes are unclear. It is unknown whether the effects of sleep and TL on well-being are independent or whether alterations in sleep mediate the effects of TL on subjective well-being. HYPOTHESIS: Sleep and TL exert independent effects on subjective well-being among youth athletes, although alterations in sleep mediate a significant portion of the effect of TL on well-being in female youth athletes...
February 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29387449/-recover-quicker-train-harder-and-increase-flexibility-massage-therapy-for-elite-paracyclists-a-mixed-methods-study
#17
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/29384434/the-psychomotor-vigilance-test-a-comparison-of-different-test-durations-in-elite-athletes
#18
Maddison J Jones, Ian C Dunican, Kevin Murray, Peter Peeling, Brian Dawson, Shona Halson, Joanna Miller, Peter R Eastwood
The 10-min Psychomotor Vigilance Test (PVT-10) is regarded as the gold-standard for assessing vigilant attention following sleep loss; however, other studies have investigated whether shorter versions of the test elicit similar results to the PVT-10. The present study compared the PVT-10 with 3-min (PVT-3) and 5-min (PVT-5) versions of the test in elite female basketball players. Athletes performed all three tests in the morning and evening for seven consecutive days. Response speed (mean reciprocal reaction time; mean 1/RT), number of errors and number of lapses were determined for each test and time point...
January 31, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29352373/sleep-interventions-designed-to-improve-athletic-performance-and-recovery-a-systematic-review-of-current-approaches
#19
REVIEW
Daniel Bonnar, Kate Bartel, Naomi Kakoschke, Christin Lang
BACKGROUND: Athletes experience various situations and conditions that can interfere with their sleep, which is crucial for optimal psychological and physiological recovery as well as subsequent performance. Conventional sleep screening and intervention approaches may not be efficacious for athletes given their lifestyle, the demands of training and travel associated with interstate/international competition. OBJECTIVES: The present systematic review aimed to summarize and evaluate sleep intervention studies targeting subsequent performance and recovery in competitive athletes...
March 2018: Sports Medicine
https://www.readbyqxmd.com/read/29345542/effects-of-late-night-training-on-slow-wave-sleep-episode-and-hour-by-hour-derived-nocturnal-cardiac-autonomic-activity-in-female-soccer-players
#20
Júlio A Costa, João Brito, Fábio Y Nakamura, Eduardo M Oliveira, António N Rebelo
PURPOSE: To assess the sensitivity of nocturnal heart rate variability (HRV) monitoring methods to the effects of late-night soccer training sessions in female athletes. METHODS: Eleven female soccer players competing in the 1st division of the Portuguese soccer league wore HR monitors during night-sleep throughout a one-week competitive in-season microcycle, after late-night training sessions (n = 3) and rest days (n = 3). HRV was analyzed through "slow-wave sleep episode" (SWSE; 10 min duration) and "hour-by-hour" (all the RR intervals recorded throughout the hours of sleep)...
January 18, 2018: International Journal of Sports Physiology and Performance
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