About
30
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151
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Citations since 2017
Introduction
Dr. Marcos Seijo works at the Department of Sport Science and Physical Education, School of Human Sciences, University of Greenwich. His areas of research interest are Sports Medicine and middle & long distance athletes. His most recent project was on 'Effects of protein administration on body composition, strength, muscle structure, immunological and haematological markers in athletes'.
Publications
Publications (30)
Microcurrent is a non-invasive and safe electrotherapy applied through a series of sub-sensory electrical currents (less than 1 mA), which are of a similar magnitude to the currents generated endogenously by the human body. This review focuses on examining the physiological mechanisms mediating the effects of microcurrent when combined with differe...
Preworkout multi-ingredient admixtures are used to maximise exercise performance. The present double-blind, cross-over study compared the acute effects of ingesting a preworkout multi-ingredient (PREW) admixture vs. carbohydrate (CHO) over a week (microcycle) comprising three resistance training (RT) workouts alternated with two 30-min low-intensit...
Post-exercise microcurrent based treatments have shown to optimise exercise-induced adaptations in athletes. We compared the effects of endurance training in combination with either, a microcurrent or a sham treatment, on endurance performance. Additionally, changes in body composition, post-exercise lactate kinetics and perceived delayed onset of...
Post workout multi-ingredient admixtures are commonly used to maximize recovery after exercise. The present double-blind, cross-over study compared the acute effects of ingesting a protein-vegan multi-ingredient (VGMT) vs. maltodextrin (MALT) on indices of muscle function. Ten trained males, (26.8 ± 1.9 years) performed two identical, 3-day resista...
Naclerio, F, Larumbe-Zabala, E, Cooper, K, and Seijo, M. Effects of a multi-ingredient beverage on recovery of contractile properties, performance, and muscle soreness after hard resistance training sessions. J Strength Cond Res XX(X): 000-000, 2020-Carbohydrate-protein-based supplements have been proposed for maximizing postexercise recovery. This...
The original version of this article unfortunately contained a mistake.
Introduction
Microcurrent has been used to promote tissue healing after injury or to hasten muscle remodeling post exercise post exercise.
Purpose
To compare the effects of resistance training in combination with either, microcurrent or sham treatment, on-body composition and muscular architecture. Additionally, changes in performance and perceive...
Whey is one of the high-quality sources of protein with a higher proportion of indispensable amino acids (IAA) compared to other sources. Its high leucine concentration makes whey an optimal protein source to maximize muscle protein synthesis (MPS) and to attenuate muscle protein breakdown at rest and following exercise. This review describes the m...
Combining Microcurrent with regular exercise configures an attractive strategy to optimise training outcomes. The aim of the present investigation was to analyse the effects of regularly wearing a new commercially available microcurrent device (Arc4health, UK) in well-trained endurance athletes. Measured variables were changes in body composition,...
Karsten, DB, Fu, Y, Larumbe-Zabala, DE, Seijo, DM, and Naclerio, DF. Impact of two high-volume set configuration workouts on resistance training outcomes in recreationally trained men. J Strength Cond Res XX(X): 000-000, 2019-This study compared the effects of 2 weekly equalized by volume, loading zone and frequency resistance training designs usin...
Objective: This study examines the long-term effects of ingesting hydrolyzed beef protein versus carbohydrate on indirect markers of immunity during 10-week of endurance training in master-aged triathletes (n=16, age 35–60 years old).
Methods: Participants were randomly assigned to either hydrolyzed beef protein (PRO, n=8) or non-protein isoenerge...
Appropriate nutritional supplementation is crucial for athletic performance, particularly for female endurance athletes as their numbers steadily increase. This report involves a set of six case studies examining the effects of ingesting a post-workout supplement containing beef, or whey or carbohydrate on iron status, blood indices, muscular thick...
The present study compared the effects of two weekly-equalized volume and relative load interventions on body composition, strength and power. Based on individual baseline maximal strength values, eighteen recreationally trained men were pair-matched and consequently randomly assigned to one of the following experimental groups: a low volume per se...
Objective:
The present study compares the effect of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on performance, body composition (via plethysmography), muscular thickness, and blood indices of health, including ferritin concentrations, following a 10-week intervention program.
Methods:
After being randomly assigned to one o...
Beef powder is a new high-quality protein source scarcely researched relative to exercise performance. The present study examined the impact of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on strength performance (1RM), body composition (via plethysmography), limb circumferences and muscular thickness (via ultrasonography), fol...
PurposeTo examine the impact of ingesting hydrolyzed beef protein, whey protein, and carbohydrate on resistance training outcomes, body composition, muscle thickness, blood indices of health and salivary human neutrophil peptides (HNP1-3), as reference of humoral immunity followed an 8-week resistance training program in college athletes. Methods
T...
Beef is anutrient-rich, high quality protein source containing all the essential amino acids in proportions similar to those found in human skeletal muscle. The current study examined the impact of ingesting hydrolysate beef protein, whey protein and carbohydrate on salivary alpha-defensins (HNP1) 3), body composition, jump performance and blood ma...
Beef is a nutrient-rich, high-quality protein containing all the essential amino acids in proportions similar to those found in human skeletal muscle. Only a few studies so far have analysed the effect of combining beef protein supplementation on resistance exercise performance outcomes and none of them have used hydrolysed high quality powdered be...
Background:
Achieving fat-loss outcomes by ingesting multi-ingredient mixtures may be further enhanced during exercise. This study tested the acute thermogenic effectiveness of a commercially available multi-ingredient product (Shred-Matrix®), containing Green Tea Extract, Yerba Maté, Guarana Seed Extract, Anhydrous caffeine, Saw palmetto, Fo-Ti,...
This study investigates the effects of physical stress (exercise) in mucosal secretion that contribute to innate immunity are virtually unexplored. This is the first study that has investigated the correlation between stress hormones (cortisol) and growth hormone (testosterone) against potential antimicrobial peptide (α- Defensins).
To date, no studies have systematically investigated the effect of acute (min to hours) and chronic (days to weeks) change in salivary αdefensins family before and after crossfit exercise by LC-ESI-MS. This work demonstrates that HNP 1-4 could be used as potential stress biomarkers and this assay is potentially more specific than ELISA assays, thus...
Antimicrobial peptides (α- Defensins) are commonly measured by ELISA, however, this technique does not discriminate between HNP1-3 due to their structural similarities (Figure-1). With advances in mass spectrometry techniques, Liquid Chromatography Mass Spectrometry LC-ESIMS is often considered as a first choice for analysis of salivary peptides. T...
Background The ingestion of a multi-nutrient containing proteins, carbohydrate and creatine has been shown to enhance acute and chronic responses to resistance training, attenuating fatigue and markers of catabolism training after resistance training workouts. The purpose of this study was to investigate the acute effects of a commercially availabl...
Aerobic exercise usually produces adaptations that are beneficial to health. However, illness, symptoms or signs and cardiovascular, pulmonary or metabolic risk factors, expose athletes to a level of cardiovascular risk (CVR). Our aim is to identify the CVR in Galician amateur distance runners and to find out if the exercise intensity in road races...
Introducción:
Cada día es mayor el número de personas aficio- nadas a la carrera que participa en competiciones populares de mayor o menor distancia y que entrena regularmente para ello. Acumulan así muchas horas de esfuerzo con intensidades varia- bles que implican un verdadero reto homeostático. En muchos casos el ejercicio se realiza sin conoce...
Projects
Projects (3)
To analyse the effects related to performance (Upper-Body, Lower-Body and Whole-Body Power), body composition, Muscle Contractile Properties (Tensiomyography), fuel oxidation (fat and carbohydrates), general markers of health status (e.g., white blood cell profile) and well-being (energy level, feeling of alertness, fatigue level, perception of effort during and after workouts), of combining Pre-workout and Post-workout Supplements with exercise training in Middle-Aged and Older Adults (>45 years old).
Microcurrent based treatments have been proposed more than 30 years ago. The technology requires the use of a microcurrent device, Arc4Sports (ARC Microtech Ltd, East Sussex, UK), that provides different frequencies. Some in vitro studies have revealed that the application of electric fields and currents similar to those generated within the body can substantially change the cell structure and the metabolic behaviour of cells.
Even though the microcurrent has been empirically reported as a practical and effective method by clinicians, including athletic trainers for the USA National Football League (NFA), there is a paucity of formal research published which verifies the effects of microcurrent treatments to maximise exercise adaptations, performance outcomes and recovery process in athletes.
Aims: To analyse the effects of wearing a new commercially available microcurrent device combined with different exercise training modalities on exercise outcomes, body composition, recovery including muscle damage, general markers of health and immune function in athletes and non-athletes individuals.
Trial Registration: ClinicalTrials.gov, U.S. National Institutes of Health. Identifier: NCT02425020 in resistance trained athletes
ClinicalTrials.gov ID: NCT02675348 in endurance trained athletes
