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https://www.readbyqxmd.com/read/28538305/comparing-performance-during-morning-vs-afternoon-training-sessions-in-intercollegiate-basketball-players
#1
Aaron D Heishman, Michael A Curtis, Ethan N Saliba, Robert J Hornett, Steven K Malin, Arthur L Weltman
Heishman, AD, Curtis, MA, Saliba, EN, Hornett, RJ, Malin, SK, and Weltman, AL. Comparing performance during morning vs. afternoon training sessions in intercollegiate basketball players. J Strength Cond Res 31(6): 1557-1562, 2017-Time of day is a key factor that influences the optimization of athletic performance. Intercollegiate coaches oftentimes hold early morning strength training sessions for a variety of factors including convenience. However, few studies have specifically investigated the effect of early morning vs...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28537982/selective-cannabinoids-for-chronic-neuropathic-pain-a-systematic-review-and-meta-analysis
#2
Howard Meng, Bradley Johnston, Marina Englesakis, Dwight E Moulin, Anuj Bhatia
BACKGROUND: There is a lack of consensus on the role of selective cannabinoids for the treatment of neuropathic pain (NP). Guidelines from national and international pain societies have provided contradictory recommendations. The primary objective of this systematic review and meta-analysis (SR-MA) was to determine the analgesic efficacy and safety of selective cannabinoids compared to conventional management or placebo for chronic NP. METHODS: We reviewed randomized controlled trials that compared selective cannabinoids (dronabinol, nabilone, nabiximols) with conventional treatments (eg, pharmacotherapy, physical therapy, or a combination of these) or placebo in patients with chronic NP because patients with NP may be on any of these therapies or none if all standard treatments have failed to provide analgesia and or if these treatments have been associated with adverse effects...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537765/factors-associated-with-sleep-duration-in-brazilian-high-school-students
#3
Érico Pereira Gomes Felden, Diego Grasel Barbosa, Geraldo Jose Ferrari Junior, Manoella De Oliveira Santos, Andreia Pelegrini, Diego Augusto Santos Silva
The aim of this study was to investigate the factors associated with short sleep duration on southern Brazilian high school students. Our study was comprised of 1,132 adolescents aged 14 to 19 years, enrolled in public high schools in São José, Brazil. The students answered a questionnaire about working (work and workload), health perception, smoking, school schedule, sleep (duration and daytime sleepiness), and socio-demographics data. The results showed that more than two thirds of adolescent workers had short sleep duration (76...
May 24, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28533747/selective-inhibition-of-orexin-2-receptors-prevents-stress-induced-acth-release-in-mice
#4
Sujin Yun, Michelle Wennerholm, Jonathan E Shelton, Pascal Bonaventure, Michael A Letavic, Brock T Shireman, Timothy W Lovenberg, Christine Dugovic
Orexins peptides exert a prominent role in arousal-related processes including stress responding, by activating orexin-1 (OX1R) and orexin-2 (OX2R) receptors located widely throughout the brain. Stress or orexin administration stimulates hyperarousal, adrenocorticotropic hormone (ACTH) and corticosterone release, and selective OX1R blockade can attenuate several stress-induced behavioral and cardiovascular responses but not the hypothalamic-pituitary-adrenal (HPA) axis activation. As opposed to OX1R, OX2R are preferentially expressed in the paraventricular hypothalamic nucleus which is involved in the HPA axis regulation...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28530487/effects-of-pre-season-training-on-the-sleep-characteristics-of-professional-rugby-league-players
#5
Heidi R Thornton, Jace A Delaney, Grant M Duthie, Ben J Dascombe
PURPOSE: To investigate the influence of daily and exponentially-weighted moving training loads on subsequent night-time sleep. METHODS: Sleep of fourteen professional rugby league athletes competing in the National Rugby League competition was recorded using wristwatch actigraphy. Physical demands were quantified using GPS technology, including total distance (TD), high-speed distance (HSD), acceleration/deceleration load (SumAccDec; AU), and sRPE (AU). Linear mixed models determined effects of acute (daily) and sub-acute (three- and seven-day) exponentially-weighted moving averages (EWMA) on sleep...
May 22, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28528223/the-mediating-role-of-sleep-quality-on-the-relationship-between-perceived-stress-and-depression-among-the-elderly-in-urban-communities-a-cross-sectional-study
#6
Y Liu, T Li, L Guo, R Zhang, X Feng, K Liu
OBJECTIVE: This study aims to investigate the relationship between perceived stress, sleep quality, and depression among the elderly in urban communities, and further to determine whether sleep quality can serve as a mediator among the elderly in urban communities. STUDY DESIGN: A cross-sectional survey. METHODS: Between May and July in 2015, we conducted a cross-sectional survey among 1050 community residents aged ≥60 years from Liaoning province, China...
May 18, 2017: Public Health
https://www.readbyqxmd.com/read/28526480/human-seasonal-and-circadian-studies-in-antarctica-halley-75-0-s
#7
Josephine Arendt, Benita Middleton
Living for extended periods in Antarctica exposes base personnel to extremes of daylength (photoperiod) and temperature. At the British Antarctic Survey base of Halley, 75(0)S, the sun does not rise for 110 d in the winter and does not set for 100 d in summer. Photoperiod is the major time cue governing the timing of seasonal events such as reproduction in many species. The neuroendocrine signal providing photoperiodic information to body physiology is the duration of melatonin secretion which reflects the length of the night: longer in the short days of winter and shorter in summer...
May 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28526260/relationships-between-school-start-time-sleep-duration-and-adolescent-behaviors
#8
Kyla L Wahlstrom, Aaron T Berger, Rachel Widome
OBJECTIVES: The objectives were 2-fold: (1) to examine how high school start times relate to adolescent sleep duration, and (2) to test associations between sleep duration and mental health- and substance use-related issues and behaviors in teens. DESIGN: This study examines selected questions from survey data collected between 2010 and 2013 high school students. SETTING: Respondents included more than 9000 students in grades 9 to 12 in 8 high schools in 5 school districts across the United States...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28526258/sleep-duration-and-the-associated-cardiometabolic-risk-scores-in-adults
#9
Thirumagal Kanagasabai, Jean-Philippe Chaput
OBJECTIVES: To identify the sleep duration associated with the lowest cardiometabolic risk score in adults and to determine if the association varies by subgroups (eg, sex, age groups, ethnicity, and smoking status). DESIGN: Cross-sectional data from the 2005-2012 National Health and Nutrition Examination Survey. SETTING: Non-institutionalized civil sample from the United States. PARTICIPANTS: Age ≥20 y (N=8827) with sleep and cardiometabolic health data...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28526255/associations-of-objective-and-subjective-sleep-disturbance-with-cognitive-function-in-older-men-with-comorbid-depression-and-insomnia
#10
Daniel J Biddle, Sharon L Naismith, Kathleen M Griffiths, Helen Christensen, Ian B Hickie, Nicholas S Glozier
OBJECTIVES: To examine whether poor objective and subjective sleep quality are differentially associated with cognitive function. DESIGN: Cross-sectional. SETTING: Participants were recruited from primary and secondary care, and directly from the community, in Sydney, Australia. PARTICIPANTS: The sample consisted of 74 men 50years and older (mean [SD], 58.4 [6.2] years), with comorbid depression and above-threshold insomnia symptoms, participating in a trial of online cognitive behavioral therapy for insomnia...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28526252/determinants-of-sleep-behavior-in-adolescents-a-pilot-study
#11
Reut Gruber, Gail Somerville, Soukaina Paquin, Johanne Boursier
PURPOSE: To identify determinants of sleep behavior in adolescents of middle to high socioeconomic status. METHODS: Eighteen students (9 boys, 9 girls) with a mean age of 14.9±1.5years were interviewed using a standardized script inspired by the theory of planned behavior. Interviews were audio-recorded and anonymously transcribed verbatim. In addition, participants completed a survey assessing demographic and health characteristics and their sleep duration was measured using actigraphy...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28526251/asthma-related-lung-function-sleep-quality-and-sleep-duration-in-urban-children
#12
Daphne Koinis-Mitchell, Sheryl J Kopel, Ronald Seifer, Monique LeBourgeois, Elizabeth L McQuaid, Cynthia A Esteban, Julie Boergers, Jack Nassau, Michael Farrow, Gregory K Fritz, Robert B Klein
OBJECTIVES: Examine (1) the extent to which changes in objectively measured asthma-related lung function (forced expiratory volume in 1 second) within a sleep period are associated with sleep quality and sleep duration during that sleep period in a group of urban children with persistent asthma, (2) associations between morning and evening asthma-related lung function and sleep quality and duration on the adjacent night, and (3) whether these associations differ by ethnic group. DESIGN: Cross-sectional, multimethod approach...
June 2017: Sleep Health
https://www.readbyqxmd.com/read/28525637/characterizing-adult-sleep-behavior-over-20-years-the-population-based-doetinchem-cohort-study
#13
Margot L Zomers, Gerben Hulsegge, Sandra H van Oostrom, Karin I Proper, Wm Monique Verschuren, H Susan J Picavet
Study Objectives: To describe sleep duration patterns of adults over a 20-year period, to compare sociodemographic, lifestyle, and health characteristics across these patterns, and to relate the patterns to sleep quality. Methods: The study population consisted of 3,695 adults aged 20 to 59 years at baseline. Five measurements of self-reported sleep duration were used to compose seven patterns from 1987 to 2012: persistent short (≤6 hours), moderate (7-8 hours), or long (≥9 hours) sleep duration and several changing patterns (varying and became short, moderate, or long sleepers)...
May 19, 2017: Sleep
https://www.readbyqxmd.com/read/28525634/association-between-weekend-catch-up-sleep-and-lower-body-mass-population-based-study-weekend-catch-up-sleep-and-body-mass-index
#14
Hee-Jin Im, Shin-Hye Baek, Min Kyung Chu, Kwang Ik Yang, Won-Joo Kim, Seong-Ho Park, Robert J Thomas, Chang-Ho Yun
Study Objectives: To determine if weekend catch-up sleep (CUS) impacts body mass index (BMI) in the general population. Methods: A stratified random sample (2,156 subjects; age 19-82 years old, 43.0±14.5; 1,183 male) from the general population was evaluated, in 2010, using face-to-face interviews about sociodemographic characteristics, height, weight, habitual sleep duration and time-in-bed at night on weekdays and weekend, sleep-related profiles, mood and anxiety scales, and comorbid-medical conditions...
May 19, 2017: Sleep
https://www.readbyqxmd.com/read/28525632/effect-of-baseline-characteristics-on-the-pain-response-to-pregabalin-in-fibromyalgia-patients-with-comorbid-depression
#15
Stuart L Silverman, Miroslav Backonja, Lynne Pauer, Jaren Landen, Pritha Bhadra Brown, Joseph M Scavone, Richard Vissing, Andrew Clair
Objective. : To evaluate the effect of baseline characteristics on the treatment response to pregabalin in fibromyalgia (FM) patients with depression. Design. : Post hoc analysis from a randomized, double-blind, placebo-controlled, two-way crossover study of pregabalin (300 or 450 mg/day, twice daily). Subjects. : A total of 193 FM patients taking an antidepressant for comorbid depression. Methods. : The effect of patient baseline characteristics on the treatment response to pregabalin vs placebo was assessed for the primary efficacy end point (mean pain score on an 11-point numeric rating scale)...
May 19, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28524102/sleep-promoting-effects-and-possible-mechanisms-of-action-associated-with-a-standardized-rice-bran-supplement
#16
Hyejin Yang, Minseok Yoon, Min Young Um, Jaekwang Lee, Jonghoon Jung, Changho Lee, Yun-Tai Kim, Sangoh Kwon, Boknam Kim, Suengmok Cho
Natural sleep aids are becoming more popular due to the widespread occurrence of sleep disorders. The objective of this study was to assess the sleep-promoting effects of rice bran-a product that is considered as a functional ingredient. To evaluate the sleep-promoting effects of a standardized rice bran supplement (RBS), we employed a pentobarbital-induced sleep test and conducted analyses of sleep architecture. In addition, the effect of RBS on a caffeine-induced sleep disturbance was investigated. Oral administration of RBS (500 and 1000 mg/kg) produced a significant decrease in sleep latency and increase in sleep duration in pentobarbital-induced sleep in mice...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28522106/shorter-sleep-duration-in-early-pregnancy-is-associated-with-birth-length-a-prospective-cohort-study-in-wuhan-china
#17
Weiye Wang, Chunrong Zhong, Yu Zhang, Li Huang, Xi Chen, Xuezhen Zhou, Renjuan Chen, Xiating Li, Mei Xiao, Liping Hao, Xuefeng Yang, Nianhong Yang, Sheng Wei
OBJECTIVES: To examine the association between sleep duration in early pregnancy and fetal growth in a prospective cohort study of 3567 Chinese women. METHODS: Pregnant women at 8-16 weeks of gestation were interviewed using a semi-quantitative questionnaire to assess sleep duration. Birth weight and birth length were measured by a midwife in the delivery room at birth; low birth weight (LBW) was defined as birth weight <2500 g and small for gestational age (SGA) was defined as <10th customized centile...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522096/sleep-and-circadian-variability-in-people-with-delayed-sleep-wake-phase-disorder-versus-healthy-controls
#18
Helen J Burgess, Margaret Park, James K Wyatt, Muneer Rizvydeen, Louis F Fogg
OBJECTIVE/BACKGROUND: To compare sleep and circadian variability in adults with delayed sleep-wake phase disorder (DSWPD) to healthy controls. PATIENTS/METHODS: Forty participants (22 DSWPD, 18 healthy controls) completed a ten-day protocol, consisting of DLMO assessments on two consecutive nights, a five-day study break, followed by two more DLMO assessments. All participants were instructed to sleep within one hour of their self-reported average sleep schedule for the last four days of the study break...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522093/sleep-duration-associated-with-cardiovascular-conditions-among-adult-nevadans
#19
Brianna L Pergola, Sheniz Moonie, Jennifer Pharr, Timothy Bungum, Julia L Anderson
BACKGROUND: Associations between sleep duration and cardiovascular conditions have been inconsistent. Both short and long sleep duration are associated with increased risk for diabetes, hypertension, obesity, high cholesterol, depression, and overall metabolic dysfunction; all of which are cardiovascular disease risk factors. This study aimed to determine if deficient or excessive sleep duration is associated with cardiovascular conditions. METHODS: Data were obtained from the 2013 Behavioral Risk Factor Surveillance System for the state of Nevada...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522089/sleep-stage-distribution-in-persons-with-mild-traumatic-brain-injury-a-polysomnographic-study-according-to-american-academy-of-sleep-medicine-standards
#20
Tatyana Mollayeva, Angela Colantonio, J David Cassidy, Lee Vernich, Rahim Moineddin, Colin M Shapiro
OBJECTIVE AND BACKGROUND: Sleep stage disruption in persons with mild traumatic brain injury (mTBI) has received little research attention. We examined deviations in sleep stage distribution in persons with mTBI relative to population age- and sex-specific normative data and the relationships between such deviations and brain injury-related, medical/psychiatric, and extrinsic factors. PATIENTS AND METHODS: We conducted a cross-sectional polysomnographic investigation in 40 participants diagnosed with mTBI (mean age 47...
June 2017: Sleep Medicine
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