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https://www.readbyqxmd.com/read/28811748/salivary-diagnostic-markers-in-males-and-females-during-rest-and-exercise
#1
Kay Rutherfurd-Markwick, Carlene Starck, Deborah K Dulson, Ajmol Ali
BACKGROUND: Saliva is a useful diagnostic tool for analysis in sports, exercise and nutrition research, as collection is easy and non-invasive and it contains a large number of analytes affected by a range of physiological and pathological stressors and conditions. This study examined key salivary electrolytes and stress and immune markers in males and females at rest and during exercise. METHODS: Unstimulated whole saliva from 20 healthy, recreationally active participants (8 males and 12 females) was analysed for flow rate, osmolality, sodium (Na(+)), potassium (K(+)), chloride (Cl(-)), secretory immunoglobulin A (SIgA), α-amylase activity and cortisol during both rest and moderate intensity (70% peak power) cycling exercise in a randomised crossover design...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28808625/epidemiology-of-open-fractures-in-sport-one-centre-s-15-year-retrospective-study
#2
Alexander M Wood, Greg A J Robertson, Kirsty MacLeod, Anna Porter, Charles M Court-Brown
AIM: To describe the epidemiology of sport-related open fractures from one centre's adult patient population over a 15-year period. METHODS: A retrospective review of a prospectively-collected database was performed: The database contained information all sport-related open fractures, sustained from 1995 to 2009 in the Edinburgh, Mid and East Lothian Populations. RESULTS: Over the 15-year period, there were 85 fractures recorded in 84 patients...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28767317/effects-of-inter-limb-asymmetries-on-physical-and-sports-performance-a-systematic-review
#3
Chris Bishop, Anthony Turner, Paul Read
The prevalence of inter-limb asymmetries has been reported in numerous studies across a wide range of sports and physical qualities; however, few have analysed their effects on physical and sports performance. A systematic review of the literature was undertaken using the Medline and SPORT Discus databases, with all articles required to meet a specified criteria based on a quality review. Eighteen articles met the inclusion criteria, relating participant asymmetry scores to physical and sports performance measures...
August 2, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28761713/the-effect-of-1-week-of-repeated-ischaemic-leg-preconditioning-on-simulated-keirin-cycling-performance-a-randomised-trial
#4
Angus Lindsay, Carl Petersen, Gavin Blackwell, Hamish Ferguson, Greg Parker, Nina Steyn, Steven P Gieseg
BACKGROUND: Coaches continually seek new ways of doing things and also refine existing techniques to improve sporting performance. Coaches are currently experimenting using ischaemic preconditioning (IPC) over consecutive days in the hope of improving competitive performances. AIMS: First, to quantify the physiological impact of 1 week of IPC on simulated Keirin cycling performance. Second, to investigate if biochemical stress markers are affected over the treatment period...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28758438/energy-balance-related-behavior-and-anthropometric-measures-among-adolescents-across-three-educational-levels-a-cross-sectional-study-in-dutch-schools
#5
Monica A M Ridder, Maaike Koning, Tommy L S Visscher, Remy A Hirasing, Jacob C Seidell, Carry M Renders
Energy balance-related behavior on schooldays and beliefs about school-based interventions may differ between students in different educational levels, sexes, and BMI (body mass index) categories. In Zwolle (the Netherlands), 1,084 adolescents (13-15 years) at 9 secondary schools completed a questionnaire. Overweight prevalence (boys 18.1%, girls 19.3%) increased with decreasing educational level, especially in boys. Girls reported healthier behavior than boys regarding daily consumption of fruit (35% vs. 29%), vegetables (58% vs...
July 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28756389/sports-injury-and-illness-incidence-in-the-rio-de-janeiro-2016-olympic-summer-games-a-prospective-study-of-11-274-athletes-from-207-countries
#6
Torbjørn Soligard, Kathrin Steffen, Debbie Palmer, Juan Manuel Alonso, Roald Bahr, Alexandre Dias Lopes, Jiri Dvorak, Marie-Elaine Grant, Willem Meeuwisse, Margo Mountjoy, Leonardo Oliveira Pena Costa, Natalia Salmina, Richard Budgett, Lars Engebretsen
OBJECTIVE: To describe the pattern of injuries and illnesses sustained during the Games of the XXXI Olympiad, hosted by Rio de Janeiro from 5 to 21 August 2016. METHODS: We recorded the daily incidence of athlete injuries and illnesses (1) through the reporting of all National Olympic Committee (NOC) medical teams and (2) in the polyclinic and medical venues by the Rio 2016 medical staff. RESULTS: In total, 11 274 athletes (5089 women, 45%; 6185 men, 55%) from 207 NOCs participated in the study...
July 29, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28754706/critical-knowledge-gaps-in-our-understanding-about-environmental-cycling-and-transmission-of-leptospira
#7
Veronica Barragan, Sonora Olivas, Paul Keim, Talima Pearson
Leptospirosis after exposure to soil or water contaminated with urine of infected animals is the most common way in which humans contract the disease. Entire populations can be at high risk of leptospirosis after working in inundated fields, engaging in aquatic sports, or after periods of heavy rainfall. Risk of infection after contact with these environmental sources depends on the ability of Leptospira to survive, persist, and infect new hosts. Multiple variables such as soil and water pH, temperature, and even environmental microbial communities are likely to be shaping the environmental conditions needed by the pathogen to persist...
July 28, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28754063/interjoint-coordination-of-the-lower-extremities-in-short-track-speed-skating
#8
Batbayar Khuyagbaatar, Tserenchimed Purevsuren, Won Man Park, Kyungsoo Kim, Yoon Hyuk Kim
In short-track speed skating, the three-dimensional kinematics of the lower extremities during the whole skating cycle have not been studied. Kinematic parameters of the lower extremities during skating are presented as joint angles versus time. However, the angle-time presentation is not sufficient to describe the relationship between multi-joint movement patterns. Thus, angle-angle presentations were developed and used to describe interjoint coordination in sport activities. In this study, 15 professional male skaters' full body motion data were recorded using a wearable motion capture system during short-track speed skating...
July 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28746232/the-effect-of-topical-thiocolchicoside-in-preventing-and-reducing-the-increase-of-muscle-tone-stiffness-and-soreness-a-real-life-study-on-top-level-road-cyclists-during-stage-competition
#9
Marco Gervasi, Davide Sisti, Piero Benelli, Eneko Fernández-Peña, Cinzia Calcabrini, Marco B L Rocchi, Luigi Lanata, Michela Bagnasco, Andrea Tonti, Stocchi Vilberto, Piero Sestili
In professional road cyclists, the majority of overuse injuries affect the lower limbs and are mostly represented by contractures or muscle shortening, characterized by an increase of tone and stiffness and a variation of elasticity. Treatment and prevention of these specific conditions may include physical, supplementary, and pharmacologic support. The aim of this real-life study was to determine: first, the alterations of tone, stiffness, elasticity, and soreness of rectus femoris (RF) and biceps femoris (BF) in top class cyclists engaged in 3 multistage races, and second, whether any variable in the management of the athletes may affect the prevention and/or reduction of such alterations...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28742832/the-relationship-between-movement-speed-and-duration-during-soccer-matches
#10
Kai Roecker, Hubert Mahler, Christian Heyde, Mareike Röll, Albert Gollhofer
The relationship between the time duration of movement (t(dur)) and related maximum possible power output has been studied and modeled under many conditions. Inspired by the so-called power profiles known for discontinuous endurance sports like cycling, and the critical power concept of Monod and Scherrer, the aim of this study was to evaluate the numerical characteristics of the function between maximum horizontal movement velocity (HSpeed) and t(dur) in soccer. To evaluate this relationship, GPS data from 38 healthy soccer players and 82 game participations (≥30 min active playtime) were used to select maximum HSpeed for 21 distinct t(dur) values (between 0...
2017: PloS One
https://www.readbyqxmd.com/read/28739443/sauna-exposure-immediately-prior-to-short-term-heat-acclimation-accelerates-phenotypic-adaptation-in-females
#11
Jessica A Mee, Sophie Peters, Jonathan H Doust, Neil S Maxwell
OBJECTIVES: Investigate whether a sauna exposure prior to short-term heat acclimation (HA) accelerates phenotypic adaptation in females. DESIGN: Randomised, repeated measures, cross-over trial. METHODS: Nine females performed two 5-d HA interventions (controlled hyperthermia Tre≥38.5°C), separated by 7-wk, during the follicular phase of the menstrual cycle confirmed by plasma concentrations of 17-β estradiol and progesterone. Prior to each 90-min HA session participants sat for 20-min in either a temperate environment (20°C, 40% RH; HAtemp) wearing shorts and sports bra or a hot environment (50°C, 30% RH) wearing a sauna suit to replicate sauna conditions (HAsauna)...
July 4, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28737585/biomarkers-in-sports-and-exercise-tracking-health-performance-and-recovery-in-athletes
#12
Elaine C Lee, Maren S Fragala, Stavros A Kavouras, Robin M Queen, J Luke Pryor, Douglas J Casa
Biomarker discovery and validation is a critical aim of the medical and scientific community. Research into exercise and diet-related biomarkers aims to improve health, performance, and recovery in military personnel, athletes, and lay-persons. Exercise physiology research has identified individual biomarkers for assessing health, performance, and recovery during exercise training. However, there are few recommendations for biomarker panels for tracking changes in individuals participating in physical activity and exercise training programs...
July 19, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28737524/female-athlete-triad
#13
Meredith B Loveless
PURPOSE OF REVIEW: The obstetrician/gynecologist (ob/gyn) may be the first provider to have the opportunity to recognize and diagnose female athlete triad. This review will help the ob/gyn to understand the female athlete triad and what is new on this topic, how to screen and diagnose the condition and the ob/gyn's role in treatment. RECENT FINDINGS: Female athlete triad, also known as relative energy deficiency in sports, involves an interrelationship among energy availability, menstrual function and low bone density...
July 21, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28723842/reduced-neuromuscular-performance-in-amenorrheic-elite-endurance-athletes
#14
Åsa B Tornberg, Anna Melin, Fiona Manderson Koivula, Anders Johansson, Sven Skouby, Jens Faber, Anders Sjödin
INTRODUCTION: Secondary functional hypothalamic amenorrhea (SFHA) is common among female athletes, especially in weight-sensitive sports. The aim of this study was to investigate the link between SFHA and neuromuscular performance in elite endurance athletes. METHODS: Sixteen eumenorrheic (EUM) and 14 SFHA athletes from national teams and competitive clubs participated. Methods included gynecological examination; body composition (DXA);; resting metabolic rate and work efficiency; exercise capacity; knee muscular strength (KMS) and knee muscular endurance (KME); reaction time (RT); blood sampling performed on the 3rd-5th day of the menstrual cycle, and 7-day assessment of energy availability...
July 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28717621/effects-of-the-menstrual-cycle-on-lower-limb-biomechanics-neuromuscular-control-and-anterior-cruciate-ligament-injury-risk-a-systematic-review
#15
REVIEW
Vivek Balachandar, Jan-Luigi Marciniak, Owen Wall, Chandrika Balachandar
OBJECTIVE: Anterior cruciate ligament (ACL) injury has a devastating impact on physical and psychological disability. Rates of ACL rupture are significantly greater in females than males during the same sports. Hormonal mechanisms have been proposed but are complex and poorly understood. This systematic review evaluates the effects of menstrual cycle on: 1) lower-limb biomechanics, 2) neuromuscular control, and 3) ACL injury risk. METHODS: The MEDLINE, CINAHL, SPORTSDiscus, Web of Science, and Google Scholar databases were searched from inception to August 2016 for studies investigating the effects of the menstrual cycle on lower-limb biomechanics, neuromuscular control, and ACL injury risk in females...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28715061/physical-activity-assessment-during-gestation-and-its-outcomes-a-review
#16
Wanda Forczek, Marta Curyło, Barbara Forczek
Background: Physical activity recommendations emphasize a positive influence of exercise on health. It is particularly recognized during pregnancy for both the mother and fetus. Aim: This review aims to identify the main trends of activity undertaken by women during gestation and to find out how it affects the expecting mother and her child. Methods: Review of the literature comprising the following databases: PubMed, Academic Search Complete, Health Source-Consumer Edition, Health Source: Nursing/Academic Edition, EMBASE (2000 to May 2013), used detailed search strategies...
July 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28714746/age-related-changes-in-endurance-performance-vary-between-modes-of-locomotion-in-men-an-analysis-of-master-world-records
#17
Romuald Lepers, Paul J Stapley, Thomas Cattagni
BACKGROUND: Age-related declines in sport performance are characteristic of all endurance and sprinting disciplines. However, it is not known if the mode of locomotion (i.e. swimming, cycling or running) influences the age-related decline in sport performance in sprinting and endurance events. METHODS: To examine the age-related decline in three different modes of locomotion (i.e. swimming, cycling and running) for endurance and sprint events, the world best performances achieved for males in the age-groups 18-39 years, 40-44 years, 45-49 years, 50-54 years, 55-59 years, 60-64 years, 65-69 years, 70-74 years, 75-79 years and 80-84 years, were compared in swimming (1500-m and 50-m), cycling (1-h and 200-m) and running (10-km and 100-m)...
July 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28704623/process-of-change-in-pain-related-fear-clinical-insights-from-a-single-case-of-persistent-back-pain-managed-with-cognitive-functional-therapy
#18
J P Caneiro, Anne Smith, Martin Rabey, G Lorimer Moseley, Peter O'Sullivan
Study Design Single-case report with repeated measures over 18 months. Background Management of persistent low back pain (PLBP) associated with high pain-related fear is complex. This single-case report aims to provide clinicians with an insight to the process of change in a person with PLBP and high bending-related fear, managed with an individualized behavioral approach - Cognitive Functional Therapy (CFT). Case Description A retired manual worker with PLBP believed that his spine was degenerating, that bending would hurt him and avoidance was the only form of pain control...
July 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28704621/making-sense-of-low-back-pain-and-pain-related-fear
#19
Samantha Bunzli, Anne Smith, Robert Schütze, Ivan Lin, Peter O'Sullivan
Synopsis Pain-related fear is implicated in the transition from acute to chronic low back pain and the persistence of disabling low back pain, making it a key target for physiotherapy intervention. The current understanding of pain-related fear is that it is a psychopathological problem where people who catastrophise about the meaning of pain become trapped in a vicious cycle of avoidance behaviour, pain and disability, as recognised in the Fear Avoidance Model. However there is evidence that pain-related fear can also be seen as a common sense response to deal with low back pain, for example, when one is told that their back is vulnerable, degenerating or damaged...
July 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28703082/dental-injuries-in-younger-emergency-department-patients
#20
Vigil James, Yona R Vandersluis, Evangeline W J Zhang, Dennis Scolnik
BACKGROUND: Dental trauma is a relatively common occurrence in childhood, with an impact exceeding that of periodontal diseases. It places a significant burden on the public health system because of its high frequency, impact on quality of life and consumption of resources. OBJECTIVES: To identify changing trends of dental injury in patients between 0-18 years of age in Canada and provide a detailed assessment of dental injury patterns in patients attending a large pediatric tertiary care hospital...
July 13, 2017: CJEM
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