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Diet and sport

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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
#1
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/28176000/multifactorial-logistic-regression-analysis-of-factors-associated-with-the-incidence-of-erosive-tooth-wear-among-adults-at-different-ages-in-tokyo
#2
Yuichi Kitasako, Y Sasaki, T Takagaki, A Sadr, J Tagami
OBJECTIVES: The aim of this study was to evaluate factors associated with the incidence of erosive tooth wear (ETW) among adults at different ages in Tokyo using multifactorial logistic regression analysis. MATERIALS AND METHODS: The study sample consisted of a total of 1108 subjects aged 15 to 89 years in Tokyo, Japan. Two examiners evaluated ETW in a full-mouth recording. The subjects were asked to complete a self-administered daily diet, habit, and health condition questionnaire...
February 7, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28149429/physiological-nutritional-and-performance-profiles-of-brazilian-jiu-jitsu-athletes
#3
Leonardo V Andreato, Jonatas Fs Santos, João Vdc Esteves, Valeria Lg Panissa, Ursula F Julio, Emerson Franchini
This study analysed the physiological, nutritional and performance profiles of athletes practicing Brazilian jiu-jitsu. To this end, 15 athletes that practiced Brazilian jiu-jitsu (aged: 28 ± 5 years; 8 brown belts and 7 black belts; training experience: 11 ± 4 years) underwent anthropometric measurements (body composition and somatotype), dietary evaluation (24 h recall) and physical fitness tests (movement time, dynamometer handgrip, kimono grip strength, vertical jump and sit-and-reach tests). The athletes had 12...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28121323/ingestion-of-soy-whey-blended-protein-augments-sports-performance-and-ameliorates-exercise-induced-fatigue-in-a-rat-exercise-model
#4
Guangxu Ren, Suqing Yi, Hongru Zhang, Jing Wang
This study sought to determine the effects of soy-whey blended protein supplementation on sports performance and related biochemical parameters after long-term training. After a week of adaptation, eighteen 6-week-old male Wistar rats were randomly assigned to 3 groups: the standard chow diet plus whey protein (Whey) group, the standard chow diet plus soy-whey blended protein (BP) group and the standard chow diet only (control) group. Each group included 6 rats for the seven-week experiment. Before the experiment, the baseline values of body weight, grasping force and time to exhaustion due to the loaded-swimming test were recorded for each group...
January 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28058459/-nutritional-supplements-in-sports-sense-nonsense-or-hazard
#5
Maria Kristina Parr, Sebastian Schmidtsdorff, Annette Sophie Kollmeier
The excessive sale of dietary supplements (DSs) has become a global multi-billion market as more and more people turn to DSs for a healthy lifestyle or for aesthetic reasons. DSs are also increasingly popular among athletes; 50-85% of recreational and 35-100% of competitive athletes report taking DSs, the latter more regularly. Unless pathological deficiencies are detected, the intake of DSs for recreational athletes is not recommended. While it may be advisable for competitive athletes to supplement their diet with certain macronutrients (proteins and carbohydrates), many micronutrients (vitamins, minerals) as well as allegedly performance enhancing DSs may only show minimal impact under specific conditions and for certain sports...
January 5, 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28054457/doping-control-analysis-of-lithium-in-horse-urine-and-plasma-by-inductively-coupled-plasma-mass-spectrometry
#6
Timmy L S Choi, Jenny K Y Wong, Emmie N M Ho, Wai Him Kwok, Gary N W Leung, Peter Curl, Terence S M Wan
Lithium salts are commonly prescribed to treat bipolar disorder in humans. They are effective for the treatment of acute mania and the prophylaxis of manic relapses through long-term use. Although there is no reported legitimate therapeutic use of lithium in horses, its potential mood-stabilizing effect, low cost, and ready availability make lithium salt a potential agent of abuse in equine sports, especially for equestrian competition horses. Lithium can be found in soil, plants, and water, as such it is naturally present in the equine body, thus a threshold is necessary to control its misuse in horses...
January 5, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28050921/influence-of-dietary-acid-load-on-exercise-performance
#7
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/28035585/effect-of-exercise-on-ovulation-a-systematic-review
#8
REVIEW
Osnat Hakimi, Luiz-Claudio Cameron
BACKGROUND: Infertility has been described as a devastating life crisis for couples, and has a particularly severe effect on women, in terms of anxiety and depression. Anovulation accounts for around 30% of female infertility, and while lifestyle factors such as physical activity are known to be important, the relationship between exercise and ovulation is multi-factorial and complex, and to date there are no clear recommendations concerning exercise regimes. OBJECTIVES: The objective of this review was to systematically assess the effect of physical activity on ovulation and to discuss the possible mechanisms by which exercise acts to modulate ovulation in reproductive-age women...
December 29, 2016: Sports Medicine
https://www.readbyqxmd.com/read/28028987/evaluation-of-the-erosive-potential-of-selected-isotonic-drinks-in-vitro-studies
#9
Aneta Ostrowska, Witold Szymański, Łukasz Kołodziejczyk, Elżbieta Bołtacz-Rzepkowska
BACKGROUND: Isotonic drinks are an important component of the diet of athletes. Sports drinks cause the body to maintain proper hydration and supplement minerals which are lost in sweat during excessive exercising. Aside from the benefits of isotonic drinks, it is important to be aware of the harmful effects of citric acid within the products, which could cause enamel erosion. OBJECTIVES: The aim of the study was to evaluate the erosive potential of sports drinks using confocal scanning laser microscopy (CLSM)...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27857524/assessment-of-the-relationship-between-periodontal-disease-and-cardiovascular-disorders-a-questionnaire-based-study
#10
Anca Ionel, Ondine Lucaciu, Cosmina Bondor, Minodora Moga, Aranka Ilea, Claudia Feurdean, Dan Buhăţel, Lucia Hurubeanu, Radu Septimiu Câmpian
BACKGROUND AND AIMS: Periodontitis is an inflammatory disease, characterized by the loss of connective tissue and alveolar bone. There is an increasing evidence that periodontitis is associated with a number of chronic diseases. The aim of this study was to analyze the correlation between periodontitis and certain systemic diseases by identifying their risk factors in a population from North-West Romania. METHODS: A questionnaire-based study was conducted on participants ≥45 years of age in 4 dentistry or family medicine practices from the Cluj and Bihor counties, Romania, over a time frame spanning two months...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27848731/results-from-scotland-s-2016-report-card-on-physical-activity-for-children-and-youth
#11
John J Reilly, Avril Johnstone, Geraldine McNeill, Adrienne R Hughes
BACKGROUND: The 2016 Active Healthy Kids Scotland Report Card aims to improve surveillance of physical activity (PA), facilitate international comparisons, and encourage evidence-informed PA and health policy. METHODS: Active Healthy Kids Canada Report Card methodology was used: a search for data on child and adolescent PA and health published after the 2013 Scottish Report Card was carried out. Data sources were considered for grading if based on representative samples with prevalence estimates made using methods with low bias...
November 2016: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/27848718/results-from-sweden-s-2016-report-card-on-physical-activity-for-children-and-youth
#12
Christine Delisle Nyström, Christel Larsson, Bettina Ehrenblad, Hanna Eneroth, Ulf Eriksson, Marita Friberg, Maria Hagströmer, Anna Karin Lindroos, John J Reilly, Marie Löf
BACKGROUND: The 2016 Swedish Report Card on Physical Activity (PA) for Children and Youth is a unique compilation of the existing physical and health related data in Sweden. The aim of this article is to summarize the procedure and results from the report card. METHODS: Nationally representative surveys and individual studies published between 2005-2015 were included. Eleven PA and health indicators were graded using the Active Healthy Kids Canada grading system...
November 2016: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/27835960/parent-child-associations-for-changes-in-diet-screen-time-and-physical-activity-across-two-decades-in-modernizing-china-china-health-and-nutrition-survey-1991-2009
#13
Fei Dong, Annie Green Howard, Amy H Herring, Amanda L Thompson, Linda S Adair, Barry M Popkin, Allison E Aiello, Bing Zhang, Penny Gordon-Larsen
BACKGROUND: While the household context is important for lifestyle behavior interventions, few studies have examined parent-child associations for diet and physical activity (PA) changes over time in a rapidly urbanizing country. We aimed to investigate changes in diet, screen time, and PA behaviors over time in children and their parents living in the same household, and examine the parent-child association for these behaviors. METHODS: We studied dietary, screen time, and PA behaviors in 5,201 parent-child pairs (children aged 7-17y) using longitudinal data from the China Health and Nutrition Survey (1991, 1993, 1997, 2000, 2004, 2006, and 2009)...
November 11, 2016: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/27825373/trends-in-body-image-of-adolescent-females-in-metropolitan-and-non-metropolitan-regions-a-longitudinal-study
#14
M Craike, J A Young, C M Symons, M D Pain, J T Harvey, R M Eime, W R Payne
BACKGROUND: Body dissatisfaction is associated with a range of adverse outcomes, including impaired psychological health, low physical activity and disordered eating. This longitudinal study used the Factors Influencing Transitions in Girls' Active Leisure and Sport (FITGALS) dataset to examine trends in body image of adolescent females. Specifically, the study examined satisfaction with body size, physical appearance and dieting behaviour for two cohorts at transitional life phases in two geographic regions longitudinally over a 3-year period...
November 8, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27797701/racial-disparities-in-substance-use-by-sport-participation-among-high-school-students
#15
Mike C Parent, Tyler C Bradstreet, Margaret Piper, Travis Brace, Thomas J Parkman
OBJECTIVE: The purpose of this study was to assess the association between team sport participation and substance use, and racial/ ethnic disparities, among U.S. adolescents. METHOD: Data from 6,721 male and 6,761 female high school students in the 2013 Youth Behavior Risk Survey were used. Logistic regression was used to assess the relationship between team sport participation and substance use across gender and race/ethnicity. RESULTS: Among males, participation in team sports was associated with increased risk for use of smokeless tobacco (odds ratio [OR] = 1...
November 2016: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27732653/seasonal-vitamin-d-status-in-polish-elite-athletes-in-relation-to-sun-exposure-and-oral-supplementation
#16
Jaroslaw Krzywanski, Tomasz Mikulski, Hubert Krysztofiak, Marcel Mlynczak, Ewa Gaczynska, Andrzej Ziemba
Vitamin D does not only influence the musculoskeletal health and mineral homeostasis but it also affects cardiovascular, endocrine, nervous, immune and mental functions, thus it is of considerable importance for both physically active people and elite athletes. However, vitamin D deficiency is common worldwide and results from inadequate endogenous skin synthesis (insufficient ultraviolet B exposure) and diet. To improve the vitamin D status elite athletes often travel to lower latitude during winter. The aim of the study was to evaluate the seasonal vitamin D status in Polish elite athletes according to the sun exposure and oral supplementation...
2016: PloS One
https://www.readbyqxmd.com/read/27699758/-healthy-sleep-evidence-and-guidelines-for-action-official-document-of-the-spanish-sleep-society
#17
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
https://www.readbyqxmd.com/read/27693050/circulating-mirna-as-fine-regulators-of-the-physiological-responses-to-physical-activity-pre-analytical-warnings-for-a-novel-class-of-biomarkers
#18
REVIEW
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...
December 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/27623984/stability-of-physical-activity-fitness-components-and-diet-quality-indices
#19
E Mertens, P Clarys, P Mullie, J Lefevre, R Charlier, S Knaeps, I Huybrechts, B Deforche
BACKGROUND: Regular physical activity (PA), a high level of fitness and a high diet quality are positively associated with health. However, information about stability of fitness components and diet quality indices is limited. This study aimed to evaluate stability of those parameters. METHODS: This study includes 652 adults (men=57.56 (10.28) years; women=55.90 (8.34) years at follow-up) who participated in 2002-2004 and returned for follow-up at the Policy Research Centre Leuven in 2012-2014...
September 14, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27618089/the-diet-quality-of-competitive-adolescent-male-rugby-union-players-with-energy-balance-estimated-using-different-physical-activity-coefficients
#20
Tracy Burrows, Simon K Harries, Rebecca L Williams, Cheryl Lum, Robin Callister
OBJECTIVES: The aims of the current study were to comprehensively assess the dietary intakes and diet quality of a sample of Australian competitive adolescent rugby union players and compare these intakes with National and Sports Dietitians Association (SDA) Recommendations for adolescent athletes. A secondary aim investigated applying different physical activity level (PAL) coefficients to determine total energy expenditure (TEE) in order to more effectively evaluate the adequacy of energy intakes...
September 7, 2016: Nutrients
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