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https://www.readbyqxmd.com/read/28230530/developing-a-multi-component-immune-model-for-evaluating-the-risk-of-respiratory-illness-in-athletes
#1
Maree Gleeson, David B Pyne, Lisa J Elkington, Sharron T Hall, John R Attia, Christopher Oldmeadow, Lisa G Wood, Robin Callister
Clinical and laboratory identification of the underlying risk of respiratory illness in athletes has proved problematic. The aim of this study was to determine whether clinical data, combined with immune responses to standardised exercise protocols and genetic cytokine polymorphism status, could identify the risk of respiratory illness (symptoms) in a cohort of highly-trained athletes. Male endurance athletes (n=16; VO2max 66.5 ± 5.1 mL.kg-1.min-1) underwent a clinical evaluation of known risk factors by a physician and comprehensive laboratory analysis of immune responses both at rest and after two cycling ergometer tests: 60 min at 65% VO2max (LONG); and 6 x 3 min intervals at 90% VO2max (INTENSE)...
2017: Exercise Immunology Review
https://www.readbyqxmd.com/read/28214724/where-biomedicalisation-and-magic-meet-therapeutic-innovations-of-elite-sports-injury-in-british-professional-football-and-cycling
#2
Alex Faulkner, Michael McNamee, Catherine Coveney, Jonathan Gabe
Injury is a conspicuous feature of the practice and public spectacle of contemporary elite sports. The paper argues that the 'biomedicalisation' thesis (medico-industrial nexus, techno-scientific drivers, medical optimisation, biologisation, the rise of evidence and health surveillance) goes some way to capturing the use in elite sports injury of some highly specialised mainstream therapies and some highly maverick biological therapies, which are described. Nevertheless, these main strands of biomedicalisation do not capture the full range of these phenomena in the contexts of sports medicine and athletes' practices in accessing innovative, controversial therapies...
February 9, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28208847/effect-of-different-phases-of-menstrual-cycle-on-cardio-respiratory-efficiency-in-normal-overweight-and-obese-female-undergraduate-students
#3
Nazrin Samsudeen, Archana Rajagopalan
INTRODUCTION: The influence of obesity on cardio-respiratory efficiency in the various phases of menstrual cycle is not well understood until now. As majority of Indian women have a favourable attitude towards participation in sports it is significant to understand the variation in exercise performance during different phases of menstrual cycle to have an optimum performance. AIM: To evaluate the endurance capacity and cardio-respiratory responses in normal, obese and overweight female undergraduate students during different phases of menstrual cycle...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28188199/back-to-the-future-revisiting-the-physiological-cost-of-negative-work-as-a-team-based-activity-for-exercise-physiology-students
#4
Matthew A Kilgas, Steven J Elmer
We implemented a team-based activity in our exercise physiology teaching laboratory that was inspired from Abbott et al.'s classic 1952 Journal of Physiology paper titled "The physiological cost of negative work." Abbott et al. connected two bicycles via one chain. One person cycled forward (muscle shortening contractions, positive work) while the other resisted the reverse moving pedals (muscle lengthening contractions, negative work), and the cost of work was compared. This study was the first to link human whole body energetics with isolated muscle force-velocity characteristics...
March 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28186443/highly-increased-troponin-i-levels-following-high-intensity-endurance-cycling-may-detect-subclinical-coronary-artery-disease-in-presumably-healthy-leisure-sport-cyclists-the-north-sea-race-endurance-exercise-study-needed-2013
#5
Øyvind Skadberg, Øyunn Kleiven, Magnus Bjørkavoll-Bergseth, Tor Melberg, Rolf Bergseth, Jone Selvåg, Bjørn Auestad, Ole J Greve, Kenneth Dickstein, Torbjørn Aarsland, Stein Ørn
Background Circulating cardiac troponin levels increase following prolonged intense physical exercise. The aim of this study was to identify participants with highly elevated cardiac troponins after prolonged, high intensity exercise, and to evaluate these for subclinical coronary artery disease. Methods and results Ninety-seven recreational cyclists without known cardiovascular disease or diabetes, participating in a 91 km mountain bike race were included, 74 (76%) were males, age: 43 ± 10 years, race duration: 4...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28174454/effect-of-short-term-fatigue-induced-by-high-intensity-exercise-on-the-profile-of-the-ground-reaction-force-during-single-leg-anterior-drop-jumps
#6
Saya Watanabe, Junya Aizawa, Manabu Shimoda, Mitsuhiro Enomoto, Tomomasa Nakamura, Atushi Okawa, Kazuyoshi Yagishita
[Purpose] Fatigue may be an important contributing factor to non-contact anterior cruciate ligament injuries in sports. The purpose of this study was to evaluate the effects of controlled lower limb fatigue, induced by a short-term, high-intensity exercise protocol, on the profile of the ground reaction force during landings from single-leg anterior drop-jumps. [Subjects and Methods] Twelve healthy males, 18 to 24 years old, performed single-leg anterior drop-jumps, from a 20 cm height, under two conditions, 'fatigue' and 'non-fatigue'...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28163572/knee-problems-and-its-associated-factors-among-active-cyclists-in-eastern-province-saudi-arabia
#7
Abdullatif K Althunyan, Magdy A Darwish, Moataza M Abdel Wahab
INTRODUCTION: Bicycling is one of the most enjoyable aerobic exercises recommended for the promotion of an individual's health. The Eastern Province of Saudi Arabia has seen a huge increase in the number of people who cycle. People have different goals for bicycling, but the injuries they sustain are common. Most of them relate to overuse, particularly of lower body joints. This study was conducted to determine the prevalence of knee problems and factors associated with knee pain in cyclists...
January 2017: Journal of Family & Community Medicine
https://www.readbyqxmd.com/read/28144404/knee-laxity-variations-in-the-menstrual-cycle-in-female-athletes-referred-to-the-orthopedic-clinic
#8
Seyed Esmaeel Shafiei, Sepideh Peyvandi, Mohamad Hosein Kariminasab, Masoud Shayesteh Azar, Seyed Mohamad Mehdi Daneshpoor, Alireza Khalilian, Zeinab Aghajantabar
BACKGROUND: Anterior cruciate ligament (ACL) rupture is the biggest concern for orthopedic surgeons who are involved in sports injuries, so most of ACL reconstruction surgeries are sports related. ACL injuries in female athletes are 2 - 8 times more common than male athletes in similar sport injuries. OBJECTIVES: The aim of this study was to compare knee laxity changes in the menstrual cycle in female athletes referred to the orthopedic clinic of Imam Khomeini hospital in the north of Iran, Sari, 2013...
December 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/28141724/inattentive-attention-deficit-hyperactivity-disorder-stimulant-medication-and-weight-loss-in-a-15-year-old-girl-are-we-enabling-the-development-of-an-eating-disorder
#9
Sai Iyer, Maya Kumar, Michael I Reiff, Martin T Stein
Nicole is a 15-year-old girl presenting to the Developmental Behavioral Pediatrics Clinic with symptoms of the inattentive type of Attention-Deficit/Hyperactivity Disorder (ADHD) and declining school performance over the last year. She expressed frustration over her inability to concentrate on schoolwork. Assuming that her poor grades were secondary to lack of effort, her parents withdrew privileges. Nicole became increasingly depressed. She stopped participating in activities, she previously enjoyed, and her parents reported that she stopped singing in the shower...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28139111/relationship-between-ice-hockey-specific-complex-test-and-maximal-strength-aerobic-capacity-and-postural-regulation-in-professional-players
#10
René Schwesig, Souhail Hermassi, Sebastian Edelmann, Ulrike Thorhauer, Stephan Schulze, Georg Fieseler, Karl S Delank, Roy J Shephard, Mohamed S Chelly
BACKGROUND: We aimed to examine the validity of an ice hockey-specific complex test (IHCT) and nonspecific off-ice tests for sports performance. METHODS: Eighteen professional athletes (27.4 ± 6.0 years) underwent the IHCT, maximal strength squat tests, an endurance cycling test (PWC 170) and posturography during in the first week of the pre-seasonal training. The IHCT included parameters of load (e.g., 10m and 30m sprint, transition and weave agility without and with puck, slap and wrist shots before and after the test)...
January 31, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28129498/associations-of-leisure-time-and-occupational-physical-activity-and-cardiorespiratory-fitness-with-incident-and-recurrent-major-depressive-disorder-depressive-symptoms-and-incident-anxiety-in-a-general-population
#11
Sebastian E Baumeister, Michael F Leitzmann, Martin Bahls, Marcus Dörr, Daniela Schmid, Georg Schomerus, Katja Appel, Marcello R P Markus, Henry Völzke, Sven Gläser, Hans-Jörgen Grabe
OBJECTIVE: Physical activity and cardiorespiratory fitness may help prevent depression and anxiety. Previous studies have been limited by error-prone measurements. We examined whether self-reported physical activity domains and peak exercise capacity (peakVO₂) are associated with incident and recurrent major depressive disorder (MDD), depressive symptoms, and anxiety disorders. METHODS: This was a prospective population-based study of 1,080 adult men and women (25-83 years) with a median follow-up of 4...
January 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28114974/a-misdiagnosed-case-of-osteoid-osteoma-of-the-talus-a-case-report-and-literature-review
#12
Huan He, Hailin Xu, Hao Lu, Yu Dang, Wei Huang, Qing Zhang
BACKGROUND: Osteoid osteoma (OO) is a common benign bone tumour that is rarely found in the talus. Its nidus is difficult to detect on early imaging. The atypical symptoms of OO and the presence of concurrent trauma or sports injuries may lead to misdiagnosis and delayed treatment. We herein analyse a case of misdiagnosis of OO of the talus and discuss how to improve the early diagnosis of this rare lesion, thereby permitting rapid treatment. CASE PRESENTATION: A 23-year-old man with a history of left ankle sprains and chronic pain was diagnosed with another ankle sprain and managed conservatively based on normal X-ray findings...
January 23, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28101712/herbicides-and-trace-metals-in-urban-waters-in-melbourne-australia-2011-12-concentrations-and-potential-impact
#13
Mayumi Allinson, Pei Zhang, AnhDuyen Bui, Jackie H Myers, Vincent Pettigrove, Gavin Rose, Scott A Salzman, Robert Walters, Graeme Allinson
Urban stormwater samples were collected from five aquatic systems in Melbourne, Australia, on six occasions between October 2011 and March 2012 and tested for 30 herbicides and 14 trace metals. Nineteen different herbicides were observed in one or more water samples from the five sites; chemicals observed at more than 40% of sites were simazine (100%), MCPA (83%), diuron (63%) and atrazine (53%). Using the toxicity unit (TU) concept to assess potential risk to aquatic ecosystems, none of the detected herbicides were considered to pose an individual, group or collective short-term risk to fish or zooplankton in the waters studied...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28056908/an-evaluation-of-outdoor-school-environments-to-promote-physical-activity-in-delhi-india
#14
Samiksha Tarun, Monika Arora, Tina Rawal, Sara E Benjamin Neelon
BACKGROUND: Increasing physical activity in children is an important public health goal in India. Schools may be a target for physical activity promotion, but little is known about outdoor school environments. The purpose of this study was to describe characteristics of the surrounding outdoor school environments that may promote children's physical activity in Delhi, India. METHODS: For this cross-sectional study, we conducted a structured observation of outdoor school environments in a random sample of 16 private schools in Delhi, India using the Sport, Physical activity and Eating behavior: Environmental Determinants in Young people (SPEEDY) audit tool...
January 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28050921/influence-of-dietary-acid-load-on-exercise-performance
#15
Catherine Applegate, Mackenzie Mueller, Krystle E Zuniga
Diet composition can affect systemic pH and acid-base regulation, which may in turn influence exercise performance. An acidic environment in the muscle impairs performance and contributes to fatigue; therefore, current trends in sports nutrition place importance on maximizing the alkalinity of the body with ergogenic aids and dietary strategies. This review examines the evidence on the effects of dietary manipulations on acid load and exercise performance. Ten studies that investigated the effect of high versus low dietary acid loads on athletic performance generally identified that low dietary acid loads increased plasma pH, but did not consistently improve exercise performance at maximal or submaximal exercise intensities...
January 4, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28031772/the-chronotype-of-elite-athletes
#16
Michele Lastella, Gregory D Roach, Shona L Halson, Charli Sargent
The aims of this study were (i) to compare the chronotype distribution of elite athletes to a young adult population and (ii) to determine if there was a tendency for athletes to select and/or participate in sports which suited their chronotype. A total of 114 elite athletes from five sports (cricket, cycling, hockey, soccer and triathlon) participated in this study. The participants' chronotype, sleepiness, sleep satisfaction and sleep quality were determined using the Horne and Östberg Morningness and Eveningness questionnaire, the Epworth Sleepiness Scale and questions concerning their sleep satisfaction and quality...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27997257/solid-gel-and-liquid-carbohydrate-format-effects-on-gut-comfort-and-performance
#17
Mathilde Guillochon, David S Rowlands
Carbohydrate sports drinks produce worthwhile benefits to endurance performance compared with non-caloric controls. However, athletes now consume carbohydrate in a range of formats, including gels and bars, but the comparable performance outcomes are unknown. Therefore, the aim of this study was to establish the relative effects of drink, gel, bar, and mixed carbohydrate formats on intense cycling performance. In a treatment-apparent randomised crossover design, 12 well-trained male cyclists completed 4 trials comprising a 140-min race simulation, followed by a double-blind slow-ramp to exhaustion (0...
December 20, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27990239/towards-parameters-and-protocols-to-recommend-fes-cycling-in-cases-of-paraplegia-a-preliminary-report
#18
Juliana Araujo Guimarães, Lucas Oliveira da Fonseca, Clarissa Cardoso Dos Santos-Couto-Paz, Antônio Padilha Lanari Bó, Charles Fattal, Christine Azevedo-Coste, Emerson Fachin-Martins
Functional Electrical Stimulation assisted cycling (FES-Cycling) is increasingly becoming an alternative option recommended to people with spinal cord injury struggling with paraplegia and interested in practicing sports. In order to propose preconditions to guide FES-Cycling recommendation, we aimed to investigate some features and their potential relationships with responsiveness to Neuromuscular Electrical Stimulation (NMES). Fourteen volunteers attended a public recruitment forum to be assessed about their responsiveness through the 16-sessions of NMES...
June 13, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/27984831/-total-joint-replacement-and-return-to-sports
#19
N Oehler, T Schmidt, A Niemeier
Background: An increasing number of physically active patients not only need to know if they will basically be able to engage in sports after undergoing arthroplasty. They also would like to know whether or not they will be able to resume their preoperative activity levels. This article aims to provide an overview of recent data regarding the following questions on hip, knee and shoulder arthroplasty: (1) What is the impact of physical activity on an endoprosthesis? (2) What level of sports can be achieved after an arthroplasty procedure? (3) What types of sport are recommended for patients with an endoprosthesis? Methods: PubMed-based review of the literature...
December 2016: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/27974154/in-air-versus-underwater-comparison-of-3d-reconstruction-accuracy-using-action-sport-cameras
#20
Gustavo R D Bernardina, Pietro Cerveri, Ricardo M L Barros, João C B Marins, Amanda P Silvatti
Action sport cameras (ASC) have achieved a large consensus for recreational purposes due to ongoing cost decrease, image resolution and frame rate increase, along with plug-and-play usability. Consequently, they have been recently considered for sport gesture studies and quantitative athletic performance evaluation. In this paper, we evaluated the potential of two ASCs (GoPro Hero3+) for in-air (laboratory) and underwater (swimming pool) three-dimensional (3D) motion analysis as a function of different camera setups involving the acquisition frequency, image resolution and field of view...
January 25, 2017: Journal of Biomechanics
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