Articles

Serum concentration of several trace metals and physical training

The aim of this study was to observe the concentrations of trace metals boron, lithium, rubidium, antimony, tin and strontium in the serum of athletes from different modalities and sedentary subjects and the p...

Authors: Marcos Maynar, Francisco Llerena, Francisco J. Grijota, Javier Alves, María C. Robles, Ignacio Bartolomé and Diego Muñoz

Minimal dose of milk protein concentrate to enhance the anabolic signalling response to a single bout of resistance exercise; a randomised controlled trial

Resistance training is a potent stimulus to induce muscle hypertrophy. Supplemental protein intake is known to enhance gains in muscle mass through activation of the mammalian target of rapamycin complex 1 (mT...

Authors: Cameron J. Mitchell, Nina Zeng, Randall F. D’Souza, Sarah M. Mitchell, Kirsten Aasen, Aaron C. Fanning, Sally D. Poppitt and David Cameron-Smith

Evaluation of anti-fatigue property of the extruded product of cereal grains mixed with Cordyceps militaris on mice

Fatigue is a biological phenomenon that involves a feeling of extreme physical or mental tiredness that could potentially cause some severe chronic diseases. Recently, diet therapy has provided a new alternati...

Authors: Lei Zhong, Liyan Zhao, Fangmei Yang, Wenjian Yang, Yong Sun and Qiuhui Hu

The effect of acute pomegranate extract supplementation on oxygen uptake in highly-trained cyclists during high-intensity exercise in a high altitude environment

Recent research has indicated that pomegranate extract (POMx) may improve performance during aerobic exercise by enhancing the matching of vascular oxygen (O₂) provision to muscular requirements. POMx is rich in ...

Authors: Emma May Crum, Ahmad Munir Che Muhamed, Matthew Barnes and Stephen Robert Stannard

Nutrition practices and knowledge among NCAA Division III football players

Participation in collegiate American football is physically demanding and may have long-term health implications, particularly in relation to cardiovascular and neurological health. National Collegiate Athleti...

Authors: Elizabeth Lea Abbey, Cynthia Joy Wright and Christina M. Kirkpatrick

Dietary thiols in exercise: oxidative stress defence, exercise performance, and adaptation

Endurance athletes are susceptible to cellular damage initiated by excessive levels of aerobic exercise-produced reactive oxygen species (ROS). Whilst ROS can contribute to the onset of fatigue, there is incre...

Authors: Yanita McLeay, Stephen Stannard, Stuart Houltham and Carlene Starck

Effect of thyme extract supplementation on lipid peroxidation, antioxidant capacity, PGC-1α content and endurance exercise performance in rats

Athletes have a large extent of oxidant agent production. In the current study, we aimed to determine the influence of thyme extract on the endurance exercise performance, mitochondrial biogenesis, and antioxi...

Authors: Mostafa Khani, Pezhman Motamedi, Mohammad Reza Dehkhoda, Saeed Dabagh Nikukheslat and Pouran Karimi

Simple sugar supplementation abrogates exercise-induced increase in hepcidin in young men

At present many young people experience too much body iron accumulation. The reason of this phenomenon is not clear. There is accumulating evidences that not proper diet and lack of exercise could be a main co...

Authors: Maja Tomczyk, Jakub Kortas, Damian Flis, Wojciech Skrobot, Rafal Camilleri and Jedrzej Antosiewicz

Ingestion of oxygenated water enhances lactate clearance kinetics in trained runners

Drinks with higher dissolved oxygen concentrations have in recent times gained popularity as a potential ergogenic aid, despite a lack of evidence regarding their efficacy. The aim of this study was to assess ...

Authors: Neil Fleming, Jeremiah Vaughan and Matthew Feeback

Abstracts from ISSN Brazil

Authors: André Barroso Heibel, Pedro Henrique Lopes Perim, Bryan Saunders, André Barroso Heibel, Déborah Michelly Abrantes, Caíque Fagundes Rauber, Caio Eduardo Gonçalves Reis, Jeferson Oliveira Santana, Diana Madureira, Elias de França, Caroline Ayme Fernandes Yoshioka, Marco Aurélio Lamolha, Cesar Augustus Zocoler, Paulo Roberto Sousa e Silva, Erico Chagas Caperuto, Janaína Lavalli Goston…

Effects of cranberry (Vaccinum macrocarpon) supplementation on iron status and inflammatory markers in rowers

The aim of this study was to analyze the effect of supplementation with cranberry (Vaccinum macrocarpon) on the levels of pro-inflammatory cytokines, hepcidin and selected markers of iron metabolism in rowers sub...

Authors: Anna Skarpańska - Stejnborn, Piotr Basta, Jerzy Trzeciak, Alicja Michalska, M. Emin Kafkas and Donata Woitas - Ślubowska

Effects of an amylopectin and chromium complex on the anabolic response to a suboptimal dose of whey protein

Previous research has demonstrated the permissive effect of insulin on muscle protein kinetics, and the enhanced insulin sensitizing effect of chromium. In the presence of adequate whole protein and/or essenti...

Authors: T. N. Ziegenfuss, H. L. Lopez, A. Kedia, S. M. Habowski, J. E. Sandrock, B. Raub, C. M. Kerksick and A. A. Ferrando

Effect of low dose, short-term creatine supplementation on muscle power output in elite youth soccer players

To determine the effects of a low dose, short-term Creatine monohydrate (Cr) supplementation (0.03 g.kg.d⁻¹ during 14 d) on muscle power output in elite youth soccer players.

Authors: Aquiles Yáñez-Silva, Cosme F. Buzzachera, Ivan Da C. Piçarro, Renata S. B. Januario, Luis H. B. Ferreira, Steven R. McAnulty, Alan C. Utter and Tacito P. Souza-Junior

Effect of mouth rinsing and ingestion of carbohydrate solutions on mood and perceptual responses during exercise

The aim of this study was to investigate whether mouth rinsing or ingesting carbohydrate (CHO) solutions impact on perceptual responses during exercise.

Authors: Ajmol Ali, Catherine Moss, Michelle Ji Yeon Yoo, Alanah Wilkinson and Bernhard H. Breier

Effects of acute ingestion of a pre-workout dietary supplement with and without p-synephrine on resting energy expenditure, cognitive function and exercise performance

The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exer...

Authors: Y. Peter Jung, Conrad P. Earnest, Majid Koozehchian, Elfego Galvan, Ryan Dalton, Dillon Walker, Christopher Rasmussen, Peter S. Murano, Mike Greenwood and Richard B. Kreider

Serum reference value of two potential doping candidates—myostatin and insulin-like growth factor-I in the healthy young male

Myostatin negatively regulates muscle growth, and its inhibition by suitable proteins can increase muscle bulk and exercise performance. However, the reference values of serum myostatin in athletes performing ...

Authors: Der-Sheng Han, Chi-Huang Huang, Ssu-Yuan Chen and Wei-Shiung Yang

Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males

The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males.

Authors: Y. Peter Jung, Conrad P. Earnest, Majid Koozehchian, Minye Cho, Nick Barringer, Dillon Walker, Christopher Rasmussen, Mike Greenwood, Peter S. Murano and Richard B. Kreider

The influence of caffeine ingestion on strength and power performance in female team-sport players

The aim of this study was to examine the influence of caffeine supplementation on knee flexor and knee extensor strength before, during and after intermittent running exercise in female team-sport players taki...

Authors: Ajmol Ali, Jemma O’Donnell, Andrew Foskett and Kay Rutherfurd-Markwick

Effect of electrolyzed high-pH alkaline water on blood viscosity in healthy adults

Previous research has shown fluid replacement beverages ingested after exercise can affect hydration biomarkers. No specific hydration marker is universally accepted as an ideal rehydration parameter following...

Authors: Joseph Weidman, Ralph E. Holsworth Jr., Bradley Brossman, Daniel J. Cho, John St.Cyr and Gregory Fridman

The effects of a multi-ingredient supplement on markers of muscle damage and inflammation following downhill running in females

The effects of a multi-ingredient performance supplement (MIPS) on markers of inflammation and muscle damage, perceived soreness and lower limb performance are unknown in endurance-trained female athletes. The...

Authors: Jessica L. Köhne, Michael J. Ormsbee and Andrew J. McKune

Exercise-induced stress behavior, gut-microbiota-brain axis and diet: a systematic review for athletes

Fatigue, mood disturbances, under performance and gastrointestinal distress are common among athletes during training and competition. The psychosocial and physical demands during intense exercise can initiate...

Authors: Allison Clark and Núria Mach

Training time frame, a possible key to literature discrepancy on fasting athletes

There is a discrepancy in the literature as to whether fasting during Ramadan affects athletic performance.

Authors: Navid Moghadam and Farzin Farahbakhsh

Effect of tart cherry juice on recovery and next day performance in well-trained Water Polo players

Tart Montmorency cherries contain high concentrations of phytochemicals and anthocyanins, which have recently been linked to improved athletic recovery and subsequent performance. To date however, previous wor...

Authors: Rachel McCormick, Peter Peeling, Martyn Binnie, Brian Dawson and Marc Sim

Effects of acute carbohydrate ingestion on anaerobic exercise performance

Carbohydrate (CHO) supplementation during endurance exercises has been shown to increase performance, but there is limited research with CHO supplementation during strength and conditioning exercises. Therefor...

Authors: Ben M. Krings, Jaden A. Rountree, Matthew J. McAllister, Patrick M. Cummings, Timothy J. Peterson, Brent J. Fountain and JohnEric W. Smith

The effect of six days of dietary nitrate supplementation on performance in trained CrossFit athletes

While it is well established that dietary nitrate reduces the metabolic cost of exercise, recent evidence suggests this effect is maintained 24 h following the final nitrate dose when plasma nitrite levels hav...

Authors: Samuel J. Kramer, Daniel A. Baur, Maria T. Spicer, Matthew D. Vukovich and Michael J. Ormsbee

Gender differences and access to a sports dietitian influence dietary habits of collegiate athletes

Limited research exists on the effect of a sports dietitian (SD) on athletes’ dietary habits and nutrient periodization, which is the deliberate manipulation of macronutrient intake to match training goals. Fu...

Authors: Michael V. Hull, Andrew R. Jagim, Jonathan M. Oliver, Mike Greenwood, Deanna R. Busteed and Margaret T. Jones

Evidence inconclusive - comment on article by Schoenfeld et al

This article comments on the study by Schoenfeld, et al. entitled “The effect of protein timing on muscle strength and hypertrophy: a meta-analysis” and discusses how the methodology led to inconclusive results.

Authors: David J. Beale

The effect of inhalation of Citrus sinensis flowers and Mentha spicata leave essential oils on lung function and exercise performance: a quasi-experimental uncontrolled before-and-after study

Recently, there has been an increased interest in the effects of essential oils on athletic performances and other physiological effects. This study aimed to assess the effects of Citrus sinensis flower and Menth...

Authors: Nidal Amin Jaradat, Hamzeh Al Zabadi, Belal Rahhal, Azmi Mahmoud Ali Hussein, Jamal Shaker Mahmoud, Basel Mansour, Ahmad Ibrahim Khasati and Abdelkhaleq Issa

Intestinal adaptations to a combination of different diets with and without endurance exercise

Endurance athletes search for diet regimens that will improve performance and decrease gastrointestinal disturbances during training and events. Although the intestine can adapt to changes in the amount and co...

Authors: Janice L. Daniels, Richard J. Bloomer, Marie van der Merwe, Samantha L. Davis, Karyl K. Buddington and Randal K. Buddington

Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo

P1 Impact of antioxidant-enriched nutrient bar supplementation on the serum antioxidant markers and physical fitness components of track and field athletes

Authors: Lalitha Ramaswamy, Supriya Velraja, Guillermo Escalante, Phil Harvey, Michelle Alencar, Bryan Haddock, Phil Harvey, Guillermo Escalante, Michelle Alencar, Bryan Haddock, Krzysztof Durkalec-Michalski, Jan Jeszka, Bogna Zawieja, Tomasz Podgórski, Ana Paula Trussardi Fayh, Alexandre Hideki Okano…

Assessment of hydration status of elite young male soccer players with different methods and new approach method of substitute urine strip

The purpose of the study is to determine and compare the hydration status with different methods and determine fluid intake, dehydration percentages and sweat rate of 26 young male soccer players (15 ± 1.2 yea...

Authors: Nesli Ersoy, Gulgun Ersoy and Mehmet Kutlu

The NAD⁺ precursor nicotinamide riboside decreases exercise performance in rats

Nicotinamide adenine dinucleotide (NAD⁺) and its phosphorylated form (NADP⁺) are key molecules in ubiquitous bioenergetic and cellular signaling pathways, regulating cellular metabolism and homeostasis. Thus, sup...

Authors: Ioannis A. Kourtzidis, Andreas T. Stoupas, Ioannis S. Gioris, Aristidis S. Veskoukis, Nikos V. Margaritelis, Maria Tsantarliotou, Ioannis Taitzoglou, Ioannis S. Vrabas, Vassilis Paschalis, Antonios Kyparos and Michalis G. Nikolaidis

Interindividual variability in sweat electrolyte concentration in marathoners

Sodium (Na⁺) intake during exercise aims to replace the Na⁺ lost by sweat to avoid electrolyte imbalances, especially in endurance disciplines. However, Na⁺ needs can be very different among individuals because o...

Authors: Beatriz Lara, César Gallo-Salazar, Carlos Puente, Francisco Areces, Juan José Salinero and Juan Del Coso

Post-exercise branched chain amino acid supplementation does not affect recovery markers following three consecutive high intensity resistance training bouts compared to carbohydrate supplementation

Amino acid supplementation has been shown to potentially reduced exercise-induced muscle soreness. Thus, the purpose of this study was to examine if branched chain amino acid and carbohydrate (BCAACHO) versus ...

Authors: Wesley C. Kephart, Petey W. Mumford, Anna E. McCloskey, A. Maleah Holland, Joshua J. Shake, C. Brooks Mobley, Adam E. Jagodinsky, Wendi H. Weimar, Gretchen D. Oliver, Kaelin C. Young, Jordan R. Moon and Michael D. Roberts

The effect of acute pre-workout supplementation on power and strength performance

Consumption of pre-workout dietary supplements by both recreational and competitive athletes has increased dramatically in recent years. The purpose of this study was to determine the acute effects of a caffei...

Authors: Nic Martinez, Bill Campbell, Madison Franek, Laura Buchanan and Ryan Colquhoun

Branched-chain amino acids, arginine, citrulline alleviate central fatigue after 3 simulated matches in taekwondo athletes: a randomized controlled trial

The decline in cognitive performance has been shown after fatiguing exercise. Branched-chain amino acids (BCAA) have been suggested to alleviate exercise-induced central fatigue. Arginine and citrulline could ...

Authors: I-Fan Chen, Huey-June Wu, Chung-Yu Chen, Kuei-Ming Chou and Chen-Kang Chang

A systematic review and meta-analysis of carbohydrate benefits associated with randomized controlled competition-based performance trials

Carbohydrate supplements are widely used by athletes as an ergogenic aid before and during sports events. The present systematic review and meta-analysis aimed at synthesizing all available data from randomize...

Authors: Martin Pöchmüller, Lukas Schwingshackl, Paolo C. Colombani and Georg Hoffmann

Effects of thirty and sixty minutes of moderate-intensity aerobic exercise on postprandial lipemia and inflammation in overweight men: a randomized cross-over study

The transient rise in blood lipids following a high-fat meal (HFM), known as postprandial lipemia, is linked to systemic inflammation and cardiovascular disease, but can be blunted by exercise. However, minima...

Authors: Sam R. Emerson, Stephanie P. Kurti, Brian S. Snyder, Karthikeyan Sitaraman, Mark D. Haub and Sara K. Rosenkranz

Twelve weeks supplementation with an extended-release caffeine and ATP-enhancing supplement may improve body composition without affecting hematology in resistance-trained men

Increased ATP levels may enhance training-induced muscle accretion and fat loss, and caffeine is a known ergogenic aid. A novel supplement containing ancient peat and apple extracts has reported enhanced mitoc...

Authors: Jordan M. Joy, Roxanne M. Vogel, Jordan R. Moon, Paul H. Falcone, Matt M. Mosman and Michael P. Kim

The effects of phosphatidic acid supplementation on strength, body composition, muscular endurance, power, agility, and vertical jump in resistance trained men

Phosphatidic acid (PA) is a lipid messenger that has been shown to increase muscle protein synthesis via signaling stimulation of the mammalian target of rapamycin (mTOR). MaxxTOR® (MT) is a supplement that co...

Authors: Guillermo Escalante, Michelle Alencar, Bryan Haddock and Phillip Harvey

Diving response after a one-week diet and overnight fasting

We hypothesized that overnight fasting after a short dietary period, especially with carbohydrates, could allow performing breath-hold diving with no restraint for diaphragm excursion and blood shift and witho...

Authors: Giovanna Ghiani, Elisabetta Marongiu, Sergio Olla, Marco Pinna, Matteo Pusceddu, Girolamo Palazzolo, Irene Sanna, Silvana Roberto, Antonio Crisafulli and Filippo Tocco

Effects of powdered Montmorency tart cherry supplementation on acute endurance exercise performance in aerobically trained individuals

The purpose of this study was to determine whether short-term supplementation of a powdered tart cherry supplement prior to and following stressful endurance exercise would affect markers of muscle damage, inf...

Authors: Kyle Levers, Ryan Dalton, Elfego Galvan, Abigail O’Connor, Chelsea Goodenough, Sunday Simbo, Susanne U. Mertens-Talcott, Christopher Rasmussen, Mike Greenwood, Steven Riechman, Stephen Crouse and Richard B. Kreider

The data do not seem to support a benefit to BCAA supplementation during periods of caloric restriction

J Int Soc Sports Nutr 13:1-015-0112-9, 2016 describe the efficacy of branched chain amino acid (BCAA) supplementation and resistance training for maintaining lean body mass during a calorie-restricted diet, an...

Authors: Brad P. Dieter, Brad Jon Schoenfeld and Alan A. Aragon

Acute Garcinia mangostana (mangosteen) supplementation does not alleviate physical fatigue during exercise: a randomized, double-blind, placebo-controlled, crossover trial

The purple mangosteen (Garcinia mangostana), known as the "queen of fruit," is widely consumed and unique not only because of its outstanding appearance and flavor but also its remarkable and diverse pharmacologi...

Authors: Chih-Wei Chang, Tzu-Zung Huang, Wen-Hsin Chang, Yi-Chun Tseng, Yu-Tse Wu and Mei-Chich Hsu

Carbohydrate mouth rinsing has no effect on power output during cycling in a glycogen-reduced state

The effect of mouth rinsing with a carbohydrate (CHO) solution on exercise performance is inconclusive with no benefits observed in the fed state. This study examined the effect of CHO mouth rinse or CHO inges...

Authors: Ajmol Ali, Michelle Ji Yeon Yoo, Catherine Moss and Bernhard H. Breier

Ramadan fasting does not adversely affect neuromuscular performances and reaction times in trained karate athletes

The present study aimed to investigate the concomitant effects of Ramadan intermittent fast (RIF) and muscle fatigue on neuromuscular performances and reaction times in young trained athletes.

Authors: Nidhal Zarrouk, Omar Hammouda, Imed Latiri, Hela Adala, Ezzedine Bouhlel, Haithem Rebai and Mohamed Dogui

The impact of post-exercise hydration with deep-ocean mineral water on rehydration and exercise performance

Dehydration caused by prolonged exercise impairs thermoregulation, endurance and exercise performance. Evidence from animal and human studies validates the potential of desalinated deep-ocean mineral water to ...

Authors: Douglas A. Keen, Eleni Constantopoulos and John P. Konhilas

Effects of dietary Docosahexaenoic, training and acute exercise on lipid mediators

Eicosanoids mediate initiation and resolution of inflammation. Our aim was evaluating the effects of training, exercise and docosahexaenoic (DHA) supplementation on plasma eicosanoids levels and peripheral blo...

Authors: X. Capó, M. Martorell, A. Sureda, J. A. Tur and A. Pons

Critical evaluation of food intake and energy balance in young modern pentathlon athletes: a cross-sectional study

Modern pentathlon comprises five sports: fencing, swimming, equestrian jumping, and a combined event of pistol shooting and running. Despite the expected high energy demand of this sport, there are few studies...

Authors: Leticia Azen Alves Coutinho, Cristiana Pedrosa Melo Porto and Anna Paola Trindade Rocha Pierucci

The effects of a fat loss supplement on resting metabolic rate and hemodynamic variables in resistance trained males: a randomized, double-blind, placebo-controlled, cross-over trial

While it is known that dietary supplements containing a combination of thermogenic ingredients can increase resting metabolic rate (RMR), the magnitude can vary based on the active ingredient and/or combinatio...

Authors: Bill I. Campbell, Ryan J. Colquhoun, Gina Zito, Nic Martinez, Kristina Kendall, Laura Buchanan, Matt Lehn, Mallory Johnson, Courtney St. Louis, Yasmin Smith and Brad Cloer