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https://www.readbyqxmd.com/read/28944269/sports-and-environmental-temperature-from-warming-up-to-heating-up
#1
REVIEW
Sébastien Racinais, Scott Cocking, Julien D Périard
Most professional and recreational athletes perform pre-conditioning exercises, often collectively termed a 'warm-up' to prepare for a competitive task. The main objective of warming-up is to induce both temperature and non-temperature related responses to optimize performance. These responses include increasing muscle temperature, initiating metabolic and circulatory adjustments, and preparing psychologically for the upcoming task. However, warming-up in hot and/or humid ambient conditions increases thermal and circulatory strain...
2017: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/28937802/epidemiology-of-stress-fractures-in-collegiate-student-athletes-2004-2005-through-2013-2014-academic-years
#2
Katherine H Rizzone, Kathryn E Ackerman, Karen G Roos, Thomas P Dompier, Zachary Y Kerr
CONTEXT:   Stress fractures are injuries caused by cumulative, repetitive stress that leads to abnormal bone remodeling. Specific populations, including female athletes and endurance athletes, are at higher risk than the general athletic population. Whereas more than 460 000 individuals participate in collegiate athletics in the United States, no large study has been conducted to determine the incidence of stress fractures in collegiate athletes. OBJECTIVE:   To assess the incidence of stress fractures in National Collegiate Athletic Association (NCAA) athletes and investigate rates and patterns overall and by sport...
September 22, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28933813/facile-and-effective-coloration-of-dye-inert-carbon-fiber-fabrics-with-tunable-colours-and-excellent-laundering-durability
#3
Fengxiang Chen, Huiyu Yang, Ke Li, Bo Deng, Qingsong Li, Xin Liu, Binghai Dong, Xingfang Xiao, Dong Wang, Yong Qin, Shi-Min Wang, Ke-Qin Zhang, Weilin Xu
Carbon fiber is a good candidate in various applications, including military, structural, sports equipment, energy storage, and infrastructure. Coloring of carbon fiber has been a big challenge for decades due to their high degrees of crystallization and insufficient chemical affinity to dyes. Here, multicolored carbon fiber fabrics (CFFs) are fabricated using a feasible, effective atomic layer deposition (ALD) technique. The vibrant and uniform structural colors originate from thin film interference is simply regulated by controlling the thickness of comformal TiO2 coatings on the surface of black carbon fibers (CFs)...
September 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28922212/equity-of-physical-characteristics-between-adolescent-males-and-females-participating-in-single-or-mixed-gender-sport
#4
L M Krause, G A Naughton, A C Benson, S Tibbert
PURPOSE: Policies on single or mixed sex junior sports participation continue to be challenged publically and legally. Often challenges relate to perceptions of size and performance variability between adolescent males and females, yet the evidence base behind these challenges lacks recent review and rigor. METHODS: Physical performance was compared between males and females from two groups of younger (<13 years, n = 109, 67% females, 33% males) and older (>13 years, n = 108, 43% females, 57% males) adolescents...
September 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28917030/the-role-of-intra-session-exercise-sequence-in-the-interference-effect-a-systematic-review-with-meta-analysis
#5
REVIEW
Lee Eddens, Ken van Someren, Glyn Howatson
BACKGROUND: There is a necessity for numerous sports to develop strength and aerobic capacity simultaneously, placing a significant demand upon the practice of effective concurrent training methods. Concurrent training requires the athlete to perform both resistance and endurance exercise within a training plan. This training paradigm has been associated with an 'interference effect', with attenuated strength adaptation in comparison to that following isolated resistance training. The effectiveness of the training programme rests on the intricacies of manipulating acute training variables, such as exercise sequence...
September 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28915771/low-back-pain-with-impact-at-17-years-of-age-is-predicted-by-early-adolescent-risk-factors-from-multiple-domains-analysis-of-the-western-australian-pregnancy-cohort-raine-study
#6
Anne Smith, Darren Beales, Peter O'Sullivan, Natasha Bear, Leon Straker
Study Design Prospective cohort study of the Western Australian Pregnancy Cohort (Raine) Study. Background Low back pain (LBP) commonly develops in adolescence and is a significant risk factor for adult LBP. A broad range of factors have been associated with the development of adolescent LBP, but prior literature has limitations related to characterisation of LBP and scope of risk factors considered. Objective This study aimed to identify potential factors contributing to the development of LBP with and without impact at 17 years of age, utilising a broad range of exposures at 14...
September 15, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#7
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28905640/neurobiological-mechanisms-of-exercise-and-psychotherapy-in-depression-the-speed-study-rationale-design-and-methodological-issues
#8
Stephan Heinzel, Michael A Rapp, Thomas Fydrich, Andreas Ströhle, Christina Terán, Gunnar Kallies, Melanie Schwefel, Andreas Heissel
BACKGROUND/AIMS: Even though cognitive behavioral therapy has become a relatively effective treatment for major depressive disorder and cognitive behavioral therapy-related changes of dysfunctional neural activations were shown in recent studies, remission rates still remain at an insufficient level. Therefore, the implementation of effective augmentation strategies is needed. In recent meta-analyses, exercise therapy (especially endurance exercise) was reported to be an effective intervention in major depressive disorder...
September 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28898135/understanding-adolescent-low-back-pain-from-a-multidimensional-perspective-implications-for-management
#9
Peter O'Sullivan, Anne Smith, Darren Beales, Leon Straker
Synopsis Low back pain (LBP) is the leading cause of disability worldwide. It often begins in adolescence, setting a course for later life. We have tracked the time course of LBP in the Raine Study cohort from the age of 14 years into early adulthood. Our work highlights that LBP is already prevalent at 14 years increasing across adolescence and into early adulthood. It is often co-morbid with other musculoskeletal pain. For some adolescents LBP has little impact - while for others its impact includes care seeking, taking medication, taking time off school and work, as well as modifying physical and functional activity...
September 12, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28887210/can-half-marathon-affect-overall-health-the-yin-yang-of-sport
#10
Luca Dalle Carbonare, Marcello Manfredi, Giuseppe Caviglia, Eleonora Conte, Elisa Robotti, Emilio Marengo, Samuele Cheri, Francesco Zamboni, Daniele Gabbiani, Michela Deiana, Daniela Cecconi, Federico Schena, Monica Mottes, Maria Teresa Valenti
Physical activity improves overall health and counteracts metabolic pathologies. Adipose tissue and bone are important key targets of exercise; the prevalence of diseases associated with suboptimal physical activity levels has increased in recent times as a result of lifestyle changes. Mesenchymal stem cells (MSCs) differentiation in either osteogenic or adipogenic lineage is regulated by many factors. Particularly, the expression of master genes such as RUNX2 and PPARγ2 is essential for MSC commitment to osteogenic or adipogenic differentiation, respectively...
September 5, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28879571/risk-factors-for-non-contact-injury-in-adolescent-cricket-pace-bowlers-a-systematic-review
#11
REVIEW
Mitchell R L Forrest, Jeffrey J Hebert, Brendan R Scott, Stefano Brini, Alasdair R Dempsey
BACKGROUND: Adolescent cricket pace bowlers are prone to injury. Recognising the risk factors for non-contact injury in this population will aid future injury prevention strategies. OBJECTIVE: To identify the risk factors for non-contact injury in adolescent cricket pace bowlers. METHODS: We systematically searched PubMed, Cochrane Library, PEDro, SPORTDiscus, Embase, and the South African Journal of Sports Medicine to identify all experimental and observational studies reporting risk factors for non-contact injuries in pace bowlers (aged 12-19 years)...
September 6, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28872443/pacer-performance-of-children-ages-11-14-with-attention-deficit-hyperactive-disorder
#12
Timothy Martinson, Stephen A Butterfield, Craig A Mson, Shihfen Tu, Robert A Lehnhard, Christopher J Nightingale
PURPOSE: The purpose of this study was to examine performance on the Progressive Aerobic Cardiovascular Endurance Run (PACER) test in children with and without Attention Deficit Hyperactive Disorder (ADHD) over the course of a school year. Also investigated was the possible influence of age, sex, school sport participation, and body mass index (BMI) on results. METHOD: Utilizing a repeated measures design, 892 middle school children ages 11-14 (mean=12.25, SD=0...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28871847/single-nucleotide-polymorphisms-in-carnosinase-genes-cndp1-and-cndp2-are-associated-with-power-athletic-status
#13
João Paulo Limongi França Guilherme, Antonio Herbert Lancha Junior
Carnosine (β-alanyl-L-histidine), abundantly found in skeletal muscle, plays an important role during exercise, especially for high-intensity contractions. Variability in muscle carnosine content between individuals exists and may also be explained by different genetic bases, although no study has addressed the association of polymorphisms in genes related to carnosine metabolism in athletes. This study aimed to investigate the frequency of single nucleotide polymorphisms (SNPs) in the carnosinase genes (CNDP1 and CNDP2) in a large Brazilian cohort of athletes and non-athletes...
September 5, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28870141/physical-and-psychosocial-characteristics-of-current-child-dancers-and-nondancers-with-systemic-joint-hypermobility-a-descriptive-analysis
#14
Leslie L Nicholson, Roger Adams, Louise Tofts, Verity Pacey
Study Design Cross-sectional study. Background The effect of current participation in dance training on joint pain and instability, fatigue, and quality of life is unknown. Objectives To examine differences in joint pain, instability, gross-motor skills, non-musculoskeletal systemic manifestations, health-related quality of life (HRQoL), and fatigue between children with Joint Hypermobility Syndrome/Ehlers-Danlos Syndrome-Hypermobility Type (JHS/EDS-HT) who currently undertake formal dance training and those who do not...
September 4, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28847143/description-of-three-female-24-h-ultra-endurance-race-winners-in-various-weather-conditions-and-disciplines
#15
Daniela Chlíbková, Thomas Rosemann, Beat Knechtle, Pantelis T. Nikolaidis, Alena Žákovská, Karl Sudi
A The incidence of exercise-associated hyponatremia (EAH) is higher in women than in men. We present three cases of a very mild post-race EAH in female winners of three 24-h ultra races in various weather conditions and disciplines with post-race plasma sodium [Na⁺] levels of 134 mM (Case 1), 133 mM (Case 2) and 134 mM (Case 3). Moreover, Case 1 and Case 2 showed elevated creatine kinase concentrations of >10,000 U/l with an absence of renal function abnormality. The common characteristics were female sex, veteran recreational category, long race experience in the particular sports discipline, excellent race performance, similar total weekly training hours and the presence of luteal phase of the menstrual cycle during the race...
August 31, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28844852/temperament-as-a-modulating-factor-of-pain-sensitivity-in-combat-sport-athletes
#16
Katarzyna Leźnicka, Anna Starkowska, Maciej Tomczak, Paweł Cięszczyk, Monika Białecka, Maria Ligocka, Piotr Żmijewski, Maciej Pawlak
The aim of this study was to characterise the temperament of combat athletes in comparison to that of individuals who do not practise any sports with regard to pain sensitivity measured with the cold pressor test (CPT) and pressure pain threshold (PPT). The study involved 284 healthy men, aged 18 to 43years. The first group consisted of 198 combat athletes, including boxing (n=19), mixed martial arts (MMA) (n=97) and karate (n=82), aged from 18 to 43years. The control group consisted of 86 subjects between the ages of 18 and 26years, academic students not practising any sport professionally...
August 26, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28844726/cycling-and-spinal-trauma-a-worrying-trend-in-referrals-to-a-national-spine-centre
#17
M P Broe, J C Kelly, P J Groarke, K Synnott, S Morris
INTRODUCTION: Cycling has seen a large increase in popularity worldwide over the last number of years. This has been linked to an increase in the number of road traffic accidents involving cyclists. Participation in cycling as part of competitive sport and endurance events has seen particular growth. AIM: To examine patients referred with spinal trauma related to cycling and to assess whether the growing popularity of cycling and particularly competitive cycling is linked to an increase in spinal trauma...
August 22, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28835512/non-battle-injury-among-repatriated-uk-armed-forces-since-cessation-of-combat-operations-a-prospective-observational-study
#18
Emma Toman, A Beaven, D N Naumann, R W Myatt, P J Parker, A R Kay
AIM: To describe the mechanisms, burden of injury, inpatient management and rehabilitation requirements of wounded military personnel at the UK Role 4 (R4) facility within the first 12 months following cessation of combat operations in Afghanistan. METHODS: All aeromedical evacuations were recorded prospectively between October 2014 and October 2015. Demographic, logistical and clinical data were derived manually from referring medical unit and patient movement requests in addition to host nation and R4 medical records...
August 23, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28828083/increased-prevalence-of-the-il-6-174c-genetic-polymorphism-in-long-distance-swimmers
#19
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Eias Kassem, Alon Eliakim
The IL-6 -174G/C single nucleotide polymorphism (SNP) functionally affects IL-6 activity, with the G-allele associated with increased IL-6 levels. The C-allele was found to be associated with exercise-induced skeletal muscle damage. The aim of the present study was to examine the association between the IL-6 -174G/C polymorphism and athletic performance among elite swimmers and runners. The study sample included 180 track and field athletes and 80 swimmers. Track and field athletes were assigned to three sub-groups: long-distance runners, middle-distance runners and short-distance runners...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28820847/effectiveness-of-a-16-week-high-intensity-cardioresistance-training-program-in-adults
#20
Tina A Greenlee, Daniel R Greene, Nathan J Ward, Ginger E Reeser, Courtney M Allen, Nicholas W Baumgartner, Neal J Cohen, Arthur F Kramer, Charles H Hillman, Aron K Barbey
Greenlee, TA, Greene, DR, Ward, NJ, Reeser, GE, Allen, CM, Baumgartner, NW, Cohen, NJ, Kramer, AF, Hillman, CH, and Barbey, AK. Effectiveness of a 16-week high-intensity cardioresistance training program in adults. J Strength Cond Res 31(9): 2528-2541, 2017-The purpose of this study was to determine the efficacy of a novel, 16-week high-intensity cardioresistance training (HICRT) program on measures of aerobic fitness, agility, aerobic power, muscular endurance, lower-body explosive power, and self-reported activity level...
September 2017: Journal of Strength and Conditioning Research
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