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sports physiology

Ben Schram, Wayne Hing, Mike Climstein
BACKGROUND: Stand up paddle boarding (SUP) is a rapidly growing sport and recreational activity where anecdotal evidence exists for its proposed health, fitness and injury rehabilitation benefits. While limited scientific evidence exists to substantiate these claims, previous studies have shown that high levels of fitness, strength and balance exists amongst participants of this sport. The purpose of this study was to conduct a training intervention on a group of previously untrained individuals to ascertain the potential of SUP on various health parameters...
2016: BMC Sports Science, Medicine and Rehabilitation
Rosario Scarfone, Antonio Ammendolia
BACKGROUND: The aim of this study was to investigate the physiological demands and technical-tactical performances of field players in Italian elite beach soccer team. METHODS: Three official matches of the Italian First Division beach soccer tournament were analyzed to evaluate the heart rate (HR) and time-motion analysis considering: standing, walking, jogging, running and sprinting, and technical-tactical aspects. Repeated-measures ANOVAs were used to determine the effects of time on the physiological measures and time motion analysis...
October 20, 2016: Journal of Sports Medicine and Physical Fitness
Ljiljana S Sulovic, Meho Mahmutovic, Snezana Lazic, Nenad Sulovic
: Aims "Athlete's heart" is a cardiac adaptation to long-term intensive training. The aims of this study were to show the prevalence of left ventricular hypertrophy in teenagers who participate in sports, to define the different types of cardiac re-modelling, and to differentiate between physiological and pathological hypertrophy. METHOD: Echocardiographic measurements were obtained by M-mode, two dimensional, and Doppler techniques of participants from sports and control groups...
October 18, 2016: Cardiology in the Young
Hotfiel T, Swoboda B, Krinner S, Grim C, Engelhardt M, Uder M, Hei R
Foam rolling has been developed as a popular intervention in training and rehabilitation. However, evidence on its effects on the cellular and physiological level is lacking. The aim of this study was to assess the effect of foam rolling on arterial blood flow of the lateral thigh. Twenty-one healthy participants (age 25 ± 2 years, height 177 ± 9 cm, body weight 74 ± 9 kg) were recruited from the medical and sports faculty. Arterial tissue perfusion was determined by spectral Doppler and power Doppler ultrasound, represented as peak flow (Vmax), time average velocity maximum (TAMx), time average velocity mean (TAMn), and resistive index (RI), and with semiquantitative grading that was assessed by four blind-folded investigators...
September 23, 2016: Journal of Strength and Conditioning Research
E D'Elia, P Ferrero, C Vittori, A Calabrese, V Duino, S Perlini, M Senni
Athletes may have electrocardiogram (ECG) repolarization abnormalities during stress test suggestive for ischemia in the absence of ischemic coronary artery disease, often in a setting of myocardial septum hypertrophy. Global longitudinal strain (GLS) might be altered in these athletes compared to hypertensive patients with the same degree of septal thickness. About 735 consecutive athletes were screened for mandatory assessment of fitness to participate in competitive sports. At the stress test, 23 (19 M, 4 F) were found to have ECG repolarization abnormalities suggestive for ischemia in the presence of normal coronary vessels...
October 17, 2016: Scandinavian Journal of Medicine & Science in Sports
Karim Chamari, Johnny Padulo
The purpose of this Current Opinion article is to focus on the appropriate use of the terms 'aerobic'- and 'anaerobic'-exercise in sports medicine, in order to try to unify their use across coaches/athletes and sport scientists. Despite the high quality of most of the investigations, the terms aerobic/anaerobic continue to be used inappropriately by some researchers in exercise science. Until late 2014, for instance, 14,883 and 6,136 articles were cited in PubMed, in the field of 'exercise science', using the words 'aerobic' or 'anaerobic', respectively...
December 2015: Sports Medicine—Open
Dieter Böning
In modern societies there is strong belief in scientific progress. But unfortunately a parallel partial regress occurs because of often evitable mistakes. Mistakes are mainly forgetting, erroneous theories, errors in experiments and manuscripts, prejudice, selected publication of "positive" results and fraud. An example for forgetting is that methods introduced decades ago are used without knowing the underlying theories: basic articles are no longer read nor cited. This omission may cause incorrect interpretation of results...
October 13, 2016: International Journal of Sports Physiology and Performance
Fabian Sanchis-Gomar, Helios Pareja Galeano, Jose A Rodriguez-Marroyo, Jos J de Koning, Alejandro Lucia, Carl Foster
Despite some advances, how the millions of variations in the human genome influence athletic performance (especially in endurance events) remains largely unknown, and no single genetic test can really predict sports talent. However, there is experimental evidence coming from animal research that selecting for even a simple characteristic like running ability, can produce comparatively large and rapid changes in performance. That such selection has not been specifically documented in humans is more evidence of the limits of physiology-archeology than of the unlikelihood of selection for physical abilities...
October 13, 2016: International Journal of Sports Physiology and Performance
Araceli Boraita, Maria-Eugenia Heras, Francisco Morales, Manuel Marina-Breysse, Alicia Canda, Manuel Rabadan, Maria-Isabel Barriopedro, Amai Varela, Alejandro de la Rosa, José Tuñón
BACKGROUND: There is limited information regarding the aortic root upper physiological limits in all planes in elite athletes according to static and dynamic cardiovascular demands and sex. METHODS AND RESULTS: A cross-sectional study was performed in 3281 healthy elite athletes (2039 men and 1242 women) aged 23.1±5.7 years, with body surface area of 1.9±0.2 m(2) and 8.9±4.9 years and 19.2±9.6 hours/week of training. Maximum end-diastolic aortic root diameters were measured in the parasternal long axis by 2-dimensional echocardiography...
October 2016: Circulation. Cardiovascular Imaging
Anne Hseu, Mykayla Sandler, Dawn Ericson, Nohamin Ayele, Kosuke Kawai, Roger Nuss
INTRODUCTION: Although dyspnea with exercise in the pediatric population can be multifactorial, the diagnosis of paradoxical vocal fold motion disorder (PVFMD) in this group is not well characterized. The objective of this study is to review the multiple causes of dyspnea with exercise in children, including the prevalence of PVFMD within this study population. METHODS: A retrospective review was conducted of patients seen at a tertiary pediatric hospital for exercise-induced dyspnea suspected to be related to PVFMD between January 2007 and July 2015...
November 2016: International Journal of Pediatric Otorhinolaryngology
Mike Climstein, Joe Walsh, Mark Debeliso, Tim Heazlewood, Trish Sevene, Kent Adams
BACKGROUND: Increasing evidence indicates adherence to exercise throughout life is concurrent with improved health. World masters games (WMG) have more participants than any other international sporting competition and is under investigated, particularly with regard to indices of cardiovascular disease risk. Therefore, we chose to investigate selected cardiovascular risk factors in WMG participants. METHODS: This was a cross-sectional, observational study which utilized a web-based questionnaire to survey cardiovascular risk factors of WMG participants...
October 11, 2016: Journal of Sports Medicine and Physical Fitness
Vicente Javier Clemente-Suárez, José Juan Robles-Pérez, Jesús Fernández-Lucas
Parachute jump is an extreme activity that elicits an intense stress response that affects jumpers' body systems being able to put them at risk. The present research analysed modifications in blood oxygen saturation (BOS), heart rate (HR), cortisol, glucose, lactate, creatine kinase (CK), muscles strength, cortical arousal, autonomic modulation, pistol magazine reload time (PMRT) and state anxiety before and after an automatic open parachute jump in 38 male Spanish soldiers (25.6 ± 5.9 years). A MANOVA with samples as a fixed factor and Effect Size (ES) were conducted...
October 11, 2016: Journal of Sports Sciences
Michael J Duncan, Neil D Clarke, Martin Cox, Mike Smith
In many sport and exercise situations, cognitive performance is required under conditions of high physiological load and high cognitive anxiety. However, few studies have assessed all these components in situ. The current study sought to address this issue. Fourteen adults (9 males, 5 females) completed 2 incremental exercise trials (perceived competition or perceived practice) in a counterbalanced order. Cognitive performance, via a test of visual discrimination, rating of perceived exertion (RPE), heart rate (HR), blood lactate (Bla), and anxiety scores, was recorded at rest, 70% [Formula: see text] and 90% [Formula: see text]...
October 8, 2016: Journal of Sports Sciences
Carolyn R Plateau, Trent A Petrie, Anthony Papathomas
The present study used an open-ended survey to collect information about current eating practices and coping strategies among 218 retired female athletes. An inductive and deductive thematic analysis revealed three themes relevant to the intuitive eating framework-permission to eat; recognizing internal hunger and satiety cues; and eating to meet physical and nutritional needs. Athletes described feeling liberated with regards to their eating following retirement from sport, and for some this included an alleviation of disordered eating practices...
August 12, 2016: Eating Disorders
Romain Bouzigon, Frederic Grappe, Gilles Ravier, Benoit Dugue
Cold therapy is commonly used as a method to relieve pain and inflammation. This review focuses primarily on two methods of cold therapy that have received recent attention: whole-body cryotherapy and partial-body cryotherapy. These methods are used to induce physiological and psychological benefits in humans in the context of medicine, health and sports. The subjects experiencing cryotherapy are dressed in minimal clothing and are exposed to very cold air (at -110°C or less) for 1-4min. Despite the increasing scientific interest in these methods, there is a lack of information about the technologies used...
October 2016: Journal of Thermal Biology
Hideyuki Nukaga, Tomotaka Takeda, Kazunori Nakajima, Keishiro Narimatsu, Takamitsu Ozawa, Keiichi Ishigami, Kazuo Funato
Teeth clenching has been shown to improve remote muscle activity (by augmentation of the Hoffmann reflex), and joint fixation (by decreased reciprocal inhibition) in the entire body. Clenching could help maintain balance, improve systemic function, and enhance safety. Teeth clenching from a sports dentistry viewpoint was thought to be important and challenging. Therefore, it is quite important to investigate mastication muscles' activity and function during sports events for clarifying a physiological role of the mastication muscle itself and involvement of mastication muscle function in whole body movement...
2016: Open Dentistry Journal
Damien McKay, Carolyn Broderick, Katharine Steinbeck
With the advent of long term athlete development programs and early sport specialisation, the training of elite athletes now spans the period of adolescence. Adolescence represents a period of physical, psychosocial and cognitive development, but also a time of physical and psychological vulnerability. Changes in skeletal and physiological attributes coincide with an increased risk of sport related injury. A window of vulnerability is shaped by the properties of the musculoskeletal system, the influence of pubertal hormones and the lag time between physical and cognitive development...
October 5, 2016: Pediatric Exercise Science
Martin D Hoffman
Participation in ultraendurance sports has been increasing in recent years. This participation growth has been associated with an increase in research focused on such events. While the total amount of research related to these sports remains relatively small compared with other sports, the research growth is encouraging. New sources for research funding for ultraendurance sports should advance the science. In addition to continued opportunities with observational studies, promising areas of investigation remain for experimental studies and research that uses ultraendurance-sport environments as models for studies relevant to wider populations...
September 2016: International Journal of Sports Physiology and Performance
M Merino-Andreu, A Alvarez-Ruiz de Larrinaga, J A Madrid-Perez, M A Martinez-Martinez, F J Puertas-Cuesta, A J Asencio-Guerra, O Romero Santo-Tomas, M J Jurado-Luque, F J Segarra-Isern, T Canet-Sanz, P Gimenez-Rodriguez, J Teran-Santos, M L Alonso-Alvarez, D Garcia-Borreguero Diaz-Varela, B Barriuso-Esteban
One of the main objectives of the Spanish Sleep Society is to promote healthy sleep in both the general population and in health professionals. This document aims to conduct a review of the current scientific literature on sleep habits that can serve as the basis on which to establish a set of general recommendations, regarding healthy sleep, for use by the general population in Spain as well as to identify the main challenges faced by research into sleep habits. The document has been developed by a multidisciplinary team made up of members of the Spanish Sleep Society who are experts in paediatric sleep medicine, clinical neurophysiology, pulmonology, neurology, chronobiology, physiology and psychology...
October 3, 2016: Revista de Neurologia
Giovanni Lombardi, Silvia Perego, Veronica Sansoni, Giuseppe Banfi
MicroRNAs are endogenous non-coding RNAs that post-transcriptionally regulate gene expression by specifically binding the target mRNA and by consequently inducing its degradation. miRNAs can be released into the circulation where they remain stable and they can be measured. Their changes reflect individual biologic adaptation to exposures to specific environmental conditions. As such, measurement of circulating microRNAs represents an opportunity to evaluate biologic changes associated with interventions such as exercise and diet...
September 27, 2016: Clinical Biochemistry
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