Search Our Scientific Publications & Authors

Sports (Basel) 2022 May 24;10(6). Epub 2022 May 24.

Laboratory of Biomechanics, School of Physical Education and Sport, Campus São Paulo, Universidade de São Paulo, São Paulo 05508-030, SAO, Brazil.

This review aimed to analyze the findings in the literature related to Mixed Martial Arts (MMA) through an exploratory systematic review and to present the state of the art from a multifactorial perspective. The review was conducted in accordance with the PRISMA statement, with a search performed in the Scopus, PubMed, and Web of Science databases. Participants were competitive athletes (amateurs or professionals) of regional, national, or international levels. Read More

J Funct Morphol Kinesiol 2022 May 25;7(2). Epub 2022 May 25.

Department of Kinesiology and Nutrition Sciences, University of Nevada-Las Vegas, Las Vegas, NV 89154, USA.

Transcranial direct current stimulation (tDCS) has been shown to improve motor learning in numerous studies. However, only a few of these studies have been conducted on elite-level performers or in complex motor tasks that have been practiced extensively. The purpose was to determine the influence of tDCS applied to the dorsolateral prefrontal cortex (DLPFC) on motor learning over multiple days on 10-m air rifle shooting performance in elite Deaflympic athletes. Read More

Eur J Sport Sci 2022 Jun 26:1-8. Epub 2022 Jun 26.

IRMES, Institute for Research in bioMedicine and Epidemiology of Sport, Paris, FRANCE.

The impact of maternity (Mat) on subsequent athletic performance is not well known. This study aims to investigate the impact of maternity among elite marathoners on their overall performance progression. For each runner listed in the top 150 female marathoners, who had experienced a mid-career maternity, performance development was reconstituted throughout the career. Read More

Nutrients 2022 May 29;14(11). Epub 2022 May 29.

Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada.

This study estimated the daily energy intake (EI) and energy expenditure (TDEE) in female varsity rugby union players during a weekly training/game cycle. Fifteen (nine forwards, six backs) players (20.5 ± 0. Read More

Eur J Appl Physiol 2022 Jun 8. Epub 2022 Jun 8.

Griffith Sports Science, Griffith University, Gold Coast, QLD, 4222, Australia.

Purpose: To compare physiological responses to submaximal cycling and sprint cycling performance in women using oral contraceptives (WomenOC) and naturally cycling women (WomenNC) and to determine whether N-acetylcysteine (NAC) supplementation mediates these responses.

Methods: Twenty recreationally trained women completed five exercise trials (i.e. Read More

J Nutr 2022 Jun 6. Epub 2022 Jun 6.

Department of Nutrition & Integrative Physiology, Florida State University, Tallahassee, FL, USA.

Background: Declines in iron status are frequently reported in those who regularly engage in strenuous physical activity. A possible reason for the declines in iron status with physical activity is increases in the iron regulatory hormone hepcidin, which functions to inhibit dietary iron absorption and can be induced by the inflammatory cytokine interleukin-6 (IL-6).

Objective: The current study aimed to determine the impact of a prolonged bout of running on hepcidin and dietary iron absorption in trained female and male runners. Read More

Nutr Res Pract 2022 May 25;16(Suppl 1):S11-S20. Epub 2022 Feb 25.

Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung 25457, Korea.

Research articles were reviewed to validate the estimated energy requirements (EERs) equations developed by the Institute of Medicine of the National Academies (IOM). These equations are based on total energy expenditure (TEE) measured by the doubly labeled water (DLW) method. We subsequently aimed to provide the basis for the suitability to apply the IOM equations as EER equations for Koreans, and develop relevant equations for EER in the Dietary Reference Intake for Koreans (KDRI). Read More

Biomed Res Int 2022 18;2022:8072824. Epub 2022 May 18.

Department of Sport, Health Sciences and Social Work, Oxford Brookes University, Oxford OX3 0BP, UK.

Awareness of the psychological issues of different groups of society can help in the management of sports programs and thus improve their athletic performance. The aim of the present study was to investigate the relationship between the big five personality traits and the sports performance of disabled athletes in team sports. Three hundred and seventy-six team athletes participated in the study. Read More

J Am Coll Health 2022 May 27:1-7. Epub 2022 May 27.

Epidemiology, Michigan State University, East Lansing, Michigan, USA.

Optimizing diet quality is an important concept for college athletes. : To evaluate dietary quality of National Collegiate Athletic Association (NCAA) Division I athletes. : Total 94 college athletes (n= 21 male, 73 female) from 19 different varsity teams at a single university completed a 24-hour dietary recall using the Automated Self-Administered 24-hour (ASA24) Dietary Assessment Tool. Read More

Sports (Basel) 2022 Apr 29;10(5). Epub 2022 Apr 29.

Department of Sports Medicine, Norwegian School of Sport Sciences, 0863 Oslo, Norway.

Background: To explore motives for combat sport participation, weight regulation practices, symptoms of low energy availability (LEA), disordered eating (DE) or eating disorders (ED), and any experiences with sexual harassment (SH) among female combat-sport athletes.

Methods: In total, 29 athletes were recruited by social media and in clubs. Participants responded to a questionnaire on health behavior and mental health and completed diet registration and a DXA-scan. Read More

Sports (Basel) 2022 Apr 20;10(5). Epub 2022 Apr 20.

Department of Swimming, Faculty of Sport, University of Ljubljana, 1000 Ljubljana, Slovenia.

Monitoring the many aspects that are crucial to an athlete's performance progress is vital for further training planning and for the development of performance and the sport. We evaluated a four-year change (2018 vs. 2022) in the current nutritional and cardiovascular health status of the most successful elite-level female swimmer in Slovenia. Read More

J Strength Cond Res 2022 Jun 16;36(6):1596-1604. Epub 2020 Jul 16.

Department of Physiology, Institute of Sport-National Research Institute, Warsaw, Poland; and.

Abstract: Malczewska-Lenczowska, J, Orysiak, J, Majorczyk, E, Sitkowski, D, Starczewski, M, and Żmijewski, P. HIF-1α and NFIA-AS2 polymorphisms as potential determinants of total hemoglobin mass in endurance athletes. J Strength Cond Res 36(6): 1596-1604, 2022-The aims of this study were to examine (1) the genotype distribution of rs11549465:C>T of the HIF-1α gene and rs1572312:C>A of the NFIA-AS2 gene; (2) the association between the genes and hematological status in endurance-oriented athletes; and (3) the association between the NFIA-AS2 gene and aerobic capacity in cyclists. Read More

Int J Sports Physiol Perform 2022 May 23:1-4. Epub 2022 May 23.

Department of Sport and Health Sciences, Technical University of Munich, Munich,Germany.

Purpose: Wheelchair athletes experience a reduction in fat-free mass due to the underlying condition and/or muscle disuse. This leads to a lower resting energy expenditure (REE), as well as a lower energy expenditure during exercise or daily activities. Traditional markers of low energy availability (LEA), including amenorrhea and low bone mineral density, are often inconclusive in wheelchair athletes. Read More

J Int Soc Sports Nutr 2022 30;19(1):92-109. Epub 2022 Mar 30.

Département Environnements Opérationnels, Institut de Recherche Biomédicale des Armées, Unité de Physiologie de l'Exercice et des Activités en Conditions Extrêmes, Bretigny-Sur-Orge, France.

Background: A food and fluid intake program is essential for ultraendurance athletes to maximize performance and avoid possible gastrointestinal symptoms (GIS). However, the ability to follow such a program during a race has been under-assessed. We thus investigated the fluctuations of food and fluid intake during the 24-h run World Championship of 12 elite athletes (6 men and 6 women; age: 46 ± 7 years, height: 170 ± 9 cm, weight: 61. Read More

Exp Physiol 2022 May 22. Epub 2022 May 22.

Thermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA, USA.

New Findings: What is the topic of this review? Whether there are sex differences in exertional heat stroke. What advances does it highlight? This review utilizes a translational model between animal and human research to explore possible physical and physiological differences with respect to risk and treatment of exertional heat stroke.

Abstract: Exertional heat stroke (EHS) is a potentially fatal condition brought about by a combination of physical activity and heat stress and resulting in central nervous system dysfunction and organ damage. Read More

Eur J Sport Sci 2022 Jun 13:1-9. Epub 2022 Jun 13.

Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan.

This study aimed to examine how genetic polymorphisms related to muscular strength and flexibility influence artistic gymnastic performance in an attempt to identify a novel polymorphism associated with flexibility. In study 1, the passive straight-leg-raise (PSLR) score and aromatase gene rs936306 polymorphism, a key enzyme for estrogen biosynthesis, were assessed in 278 individuals. In study 2, athletes (281 gymnasts and 1908 other athletes) were asked about their competition level, and gymnasts were assessed using the difficulty score (D-score) for each event. Read More

Eur J Sport Sci 2022 May 18:1-24. Epub 2022 May 18.

London Sports Institute, Middlesex University, London, NW4 4BT, United Kingdom.

Eating disorders (ED), disordered eating (DE) and low energy availability (LEA) can be detrimental to health and performance. Previous studies have independently investigated prevalence of ED, DE or LEA, however limited studies have combined methods identifying risk within female runners. The aim of this study was to identify prevalence of ED, DE and LEA in United Kingdom-based female runners and associations between age, competition level and running distance. Read More

BMJ Mil Health 2022 May 16. Epub 2022 May 16.

Medical Branch, HQ Army Recruiting and Initial Training Command, Ministry of Defence, Army Recruit Health and Performance Research, Upavon, UK.

Background: Appropriate nutritional intake is essential to optimise both general health and performance in military recruits. General nutritional knowledge is a significant and modifiable determinant of dietary behaviour; however, the level of nutritional knowledge in British Army recruits undertaking basic training is poorly understood.

Methods: The Nutritional Knowledge Questionnaire for Athletes was completed by 29 male (age: 22. Read More

J Nutr Sci 2022 27;11:e30. Epub 2022 Apr 27.

Department of Human Nutrition, Foods, and Exercise, Virginia Polytechnic Institute and State University, 295 West Campus Drive (MC 0430), 338 Wallace Hall, Blacksburg, VA, USA.

Recommendations for protein intake are based on total body weight; however, these recommendations do not consider lean body mass (LBM). The purpose of the present study was to identify the average protein intake in g/kg LBM in a group of healthy Masters Athletes (≥26 years of age, exercising ≥2 d/week). Data were obtained from a cross-sectional study. Read More

Nutrients 2022 May 5;14(9). Epub 2022 May 5.

Exercise & Nutrition Research Program, The Mary Mackillop Institute for Health Research, Australian Catholic University, Melbourne, VIC 3065, Australia.

We implemented a multi-pronged strategy (MAX) involving chronic (2 weeks high carbohydrate [CHO] diet + gut-training) and acute (CHO loading + 90 g·h CHO during exercise) strategies to promote endogenous and exogenous CHO availability, compared with strategies reflecting lower ranges of current guidelines (CON) in two groups of athletes. Nineteen elite male race walkers (MAX: 9; CON:10) undertook a 26 km race-walking session before and after the respective interventions to investigate gastrointestinal function (absorption capacity), integrity (epithelial injury), and symptoms (GIS). We observed considerable individual variability in responses, resulting in a statistically significant ( < 0. Read More

Nutrients 2022 May 2;14(9). Epub 2022 May 2.

Graduate School of Sport and Health Science, Ritsumeikan University, Kusatsu 525-8577, Japan.

Iron deficiency anemia (IDA) and iron deficiency (ID) are frequently observed among endurance athletes. The iron regulatory hormone hepcidin may be involved in IDA and/or ID. Endurance athletes incorporate multiple training sessions, but the influence of repeated bouts of endurance exercise within the same day on iron metabolism remains unclear. Read More

Nutrients 2022 Apr 29;14(9). Epub 2022 Apr 29.

Department of Sport Science, Faculty of Social Sciences, Linnaeus University, 351 95 Vaxjo, Sweden.

A questionnaire-based screening tool for male athletes at risk of low energy availability (LEA) could facilitate both research and clinical practice. The present options rely on proxies for LEA such screening tools for disordered eating, exercise dependence, or those validated in female athlete populations. in which the female-specific sections are excluded. Read More

Sports Med Open 2022 May 10;8(1):63. Epub 2022 May 10.

Department of Physiology, Federal University of São Paulo, São Paulo, Brazil.

Background: Winter swimming developed from a national tradition into a health-improving sport with international competitions. The difference in performance between women and men was thoroughly examined in various sporting disciplines; however, there is little data on winter swimming events. Therefore, this study aims to compare the sex differences in female and male winter swimmers for a distinct stroke over distances of 25 m and 200 m in ice water, freezing water and cold water in the multiple stages of the Winter Swimming World Cup, hosted by the International Winter Swimming Association (IWSA) since 2016. Read More

Int J Sport Nutr Exerc Metab 2022 May 6:1-9. Epub 2022 May 6.

Nutrition Institute, Rio de Janeiro State University, Rio de Janeiro,Brazil.

Energy availability (EA) is calculated by subtracting exercise energy expenditure from energy intake, adjusted for fat-free mass (FFM) obtained using accurate methods, such as dual-energy X-ray absorptiometry (DXA). Unlike DXA, the bioelectrical impedance analysis (BIA) is low in cost, simple and easy to carry out. This study aimed to test the concordance between the calculation of EA using FFM values from four BIA predictive equations and FFM obtained using DXA in female adolescent athletes (n = 94), recruited via social media. Read More

Calcif Tissue Int 2022 May 6. Epub 2022 May 6.

Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan.

Energy availability (EA) is defined the difference in energy intake and exercise energy expenditure. Reduction of EA (i.e. Read More

Can J Diet Pract Res 2022 May 3:1-6. Epub 2022 May 3.

Arizona State University, College of Health Solutions, 425 N. 5th Street, Phoenix, AZ.

The purpose of this study was to evaluate nutrition knowledge and diet quality in collegiate athletes to determine if referral to a sports registered dietitian (RD) is warranted. This cross-sectional study analyzed four sections of the Nutrition for Sport Knowledge Questionnaire and the Rapid Eating Assessment for Patients Questionnaire, both validated in athletic populations. The relationship between nutrition knowledge and diet quality was evaluated. Read More

Sci Med Footb 2022 05 31;6(2):159-163. Epub 2021 Mar 31.

School of Public Health, Physiotherapy and Sport Science, University College Dublin, Belfield, Ireland.

Dietary intake plays a significant role in athletic performance and is influenced by several factors, including nutrition knowledge. Gaelic footballers are amateur athletes who conduct high-intensity, intermittent activity during training and competition, and have previously demonstrated insufficient dietary intake. This study aimed to examine nutrition knowledge in elite and non-elite Gaelic footballers. Read More

Sports Med 2022 Apr 26. Epub 2022 Apr 26.

The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, August Krogh Building 2nd floor, Universitetsparken 13, 2100, Copenhagen, Denmark.

There is an increasing interest in female athletic performance-especially concerning the impact of the female menstrual cycle on training response. Indeed, fluctuations in female sex hormones, estrogen and progesterone, during the menstrual cycle regulate protein metabolism and recovery processes in skeletal muscle and may thus impact exercise training-related outcomes. Studies demonstrate that anaerobic capacity and muscle strength are greatest during the follicular phase of the menstrual cycle, when estrogen levels peak. Read More

Int J Environ Res Public Health 2022 04 16;19(8). Epub 2022 Apr 16.

Department of Nutrition, Dietetics and Food Sciences, College of Life Sciences, Brigham Young University, Provo, UT 84602, USA.

This study aimed to determine the prevalence of female athlete triad risk factors among female international volunteers based on the development and income status of their country of service. A total of 2164 past volunteers completed a retrospective survey. Countries' income and development statuses were coded using the respective annual United Nations World Economic Situations and Prospects reports. Read More

Healthcare (Basel) 2022 Apr 1;10(4). Epub 2022 Apr 1.

Athlete Support Research Center, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata 950-3198, Japan.

Objectives: This study aimed to characterize the sleep quality and nutrient intake of Japanese female college athletes to provide specific conditioning support.

Methods: A cross-sectional survey conducted between December 2019 and January 2020 during the regular training season in Niigata City, located at 139°02' E longitude and 37°55' N latitude. Overall, 120 female university student-athletes from eight clubs were selected. Read More