Saúl Martín RodríguezUniversidad de Las Palmas de Gran Canaria | ULPGC · Department of Physical Education
Saúl Martín Rodríguez
PhD student
I am currently in my last year of PhD.
About
38
Publications
45,661
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338
Citations
Citations since 2017
Introduction
Exercise physiologist working on biomechanics, with special interest on muscle architecture and its relationship with human performance.
Education
September 2010 - June 2014
Publications
Publications (38)
There are some conceptual and methodological issues
in the whole text that makes difficult to clarify what
was the real purpose of the study, so it could lead the
reader to confusion. Firstly, the authors indicate in the
abstract that “tensiomyography is a recent method to
assess muscle strength”; however, this is not true asTMG only assess muscle...
Interest in studying mechanical skeletal muscle function through tensiomyography (TMG) has increased in recent years. This systematic review aimed to (a) report the reliability and measurement error of all TMG parameters [i.e., maximum radial displacement of the muscle belly (Dm), contraction time (Tc), delay time (Td), half-relaxation time (½ Tr),...
The study aimed to determine the levels of skeletal muscle Angiotensin‐Converting Enzyme 2 (ACE2, the SARS‐CoV‐2 receptor) protein expression in men and women and assess whether ACE2 expression in skeletal muscle is associated with cardiorespiratory fitness and adiposity. The level of ACE2 in vastus lateralis muscle biopsies collected in previous s...
Piqueras-Sanchiz, F, Cornejo-Daza, PJ, Sánchez-Valdepeñas, J, Bachero-Mena, B, Sánchez-Moreno, M, Martín-Rodríguez, S, García-García, Ó, and Pareja-Blanco, F. Acute mechanical, neuromuscular, and metabolic responses to different set configurations in resistance training. J Strength Cond Res 36(11): 2983-2991, 2022-The aim of this study was to inves...
The Nrf2 transcription factor is induced by reactive oxygen and nitrogen species and is necessary for the adaptive response to exercise in mice. It remains unknown whether Nrf2 signalling is activated by exercise in human skeletal muscle. Here we show that Nrf2 signalling is activated by exercise to exhaustion with similar responses in normoxia (PI...
The aim was to determine the effects of changing pulse duration and electrode size on muscle contractile properties. Thirty-six healthy young male participated in the study (age 24.8 ± 5.8 years; height 178.2 ± 0.6 cm; body mass 71.8 ± 7.3 kg; self-reported weekly moderate intensity activity 3.5 ± 1.2 h·week−1). Tensiomyography was used to assess r...
Prolonged or unusual exercise may cause exercise-induced muscle damage (EIMD). To test whether Zynamite®, a mango leaf extract rich in the natural polyphenol mangiferin, administered in combination with quercetin facilitates recovery after EIMD, 24 women and 33 men were randomly assigned to two treatment groups matched by sex and 5 km running perfo...
Metformin has antidiabetic, anticancer, and prolongevity effects, but seems to interfere with aerobic training mitochondrial adaptations. The primary mechanism of action has been suggested to be the inhibition of mitochondrial complex I. Recent papers (Wang et al. and Cameron et al.), however, provide evidence to deny the hypothesis of a direct act...
During exercise, muscle ATP demand increases with intensity, and at the highest power output, ATP consumption may increase more than 100-fold above the resting level. The rate of mitochondrial ATP production during exercise depends on the availability of O2, carbon substrates, reducing equivalents, ADP, Pi, free creatine, and Ca2+. It may also be m...
Introduction Myofascial trigger points are a common cause of pain and clinically observed local muscle sensitivity. The improvement associated with the muscle relaxation effect (reduction of muscle rigidity) produced by dry needling (DN) is still not well known. Thus, it is thought that the regeneration of the tissue that has been destructed by dry...
Objective:
Trigger points (TrPs) are hypersensitive spots within taut bands of skeletal muscles that elicit referred pain and motor changes. Among the variety of techniques used for treating TrPs, dry needling is one of the most commonly applied interventions. The question of eliciting local twitch responses (LTRs) during TrP dry needling is uncle...
[This corrects the article DOI: 10.1371/journal.pone.0211700.].
Purpose:
To examine the variations in the velocity of contraction (Vc) assessed using tensiomyography, vertical jumping ability, and sprinting speed induced by 4 different exercise protocols (ie, strength, sprint, plyometric, and technical training sessions) in 14 male national-team rugby players (age 21.8 [2.6] y, weight 83.6 [8.5] kg, and height...
Flywheel iso-inertial training has been shown to positively affect muscular strength and
sports performance (e.g., agility). However, implementing such eccentrically-biased
training during a microcyle needs to be carefully planned due its purported effects on
neuromuscular system that can last for hours/days post-exercise. This study aimed at
using...
Background:
Myofascial trigger points (TrPs) are hyperirritable spots within taut bands of skeletal muscles that elicit local and referred pain when stimulated. Among the variety of techniques used for treating TrPs, dry needling (DN) is the most commonly applied intervention. The physiological mechanisms underlying the effects of DN remain to be...
Soccer is a very popular sport, which has been widely investigated. However, little is known about the effects of congested fixture periods on muscle mechanical responses since access to elite teams during competitive periods is highly restricted. Thus, the goal of this study was to describe the effects of a short-congested fixture period on the ne...
Gutiérrez-Vargas, R, Martín-Rodríguez, S, Sánchez-Ureña, B, Rodríguez-Montero, A, Salas-Cabrera, J, Gutiérrez-Vargas, JC, Simunic, B, and Rojas-Valverde, D. Biochemical and muscle mechanical postmarathon changes in hot and humid conditions. J Strength Cond Res XX(X): 000-000, 2018-The aim of this study was to compare biochemical changes and mechani...
The purpose of this study was to use TMG for the assessment of lateral symmetries (LS) and muscle response speed (Vrn) in elite futsal players in accordance with the specific position of the players. A total of 23 male elite futsal players competing in the Spanish elite championship were assessed. Five muscles were analysed: biceps
femoris (BF), re...
El objetivo del presente estudio fue evaluar la correlación de los valores obtenidos
de la medición del porcentaje graso del muslo (%G), del pliegue de muslo medio
(PMM) y de la pierna (PMP) y, del perímetro del muslo (PM) y de la pierna (PP) y el
diámetro del fémur (DF), con los parámetros obtenidos con la Tensiomiografía
(TMG) en el Recto Femoral...
El control postural consiste en mantener el centro de masas dentro de la base de
sustentación, la cual disminuye con el avance de la edad aumentándose el riesgo de
caída. El objetivo del estudio es analizar, evaluar y comparar los efectos de un
programa de entrenamiento de ejercicios de equilibrio estático y otro de estáticodinámico
sobre el contro...
El objetivo de esta investigación es analizar y evaluar los efectos de un programa de
entrenamiento de ejercicios de equilibrio (estático y dinámico) sobre los sistemas
somatosensorial (propiocepción) y cognitivo (atención) del control postural en
mujeres de mediana edad. La muestra se compone de 31 mujeres (48,64±5,13
años; 162,33±4,46 cm; 68,55±1...
El objetivo del presente estudio fue evaluar la correlación de los valores obtenidos
de la medición del porcentaje graso del muslo (%G), del pliegue de muslo medio
(PMM) y de la pierna (PMP) y, del perímetro del muslo (PM) y de la pierna (PP) y el
diámetro del fémur (DF), con los parámetros obtenidos con la Tensiomiografía
(TMG) en el Recto Femoral...
El objetivo del estudio es analizar, evaluar y comparar los efectos de un programa de
entrenamiento de ejercicios de equilibrio estático y otro de estático-dinámico sobre el
control postural en mujeres de mediana edad. La muestra se compone de 33
mujeres (47,57±7,93 años; 164,36±6,57 cm; 65,09±10,49 kg), divididas en dos
grupos de entrenamiento: pr...
Neuromuscular fatigue induces impairments in the motor unit recruitment and decreases in the muscle fiber conduction velocity (1). Howard & Enoka (2) suggested that interlimb interactions during maximal bilateral contractions are mediated by neural mechanisms. Bagesteiro & Sainburg (4) propose that distinct neural control mechanisms are employed fo...
Questions
Questions (17)
We are writing a systematic review and we need to assess the quality of validation studies (i.e., gold standard vs. X). We are not aware of validated and referenced scales for this use, could someone tell us some?
I need to evaluate the risk of bias for a meta-analysis including both observational and randomized controlled trials.
We need to know if there are any tool to assess in-vivo the resistance offered by subcuteneous fat to the pressure exerted by a probe which aims to cause a deformation in the muscular belly (mechanomyography).
Hi everyone,
I would like to know if prolongued and accumulated fatigue is related to changes (decrements) in muscle stiffness (loss of muscle tone). If possible, I need some references regarding the physiology behind this phenomena.
I have read many articles encouraging the use of confidence intervals instead of post-hoc power analysis.
I need to know which sEMG descriptors are useful to determine motor unit recruitment or activation of a certain muscle. In our study, we want to see how the pattern of activation / recruitment differs between different inter-electrode distance (IED) and different intensities using an electrostimulator to cause muscle contraction.
In brief, we want to see if different intensities of electrostimulation (50, 75 and 100 mA) with different IED differ in the recruitment of motor units or something similar (i.e., any sEMG useful descriptor for this purpose).
I need to know how to calculate first derivative of a signal (displacement in milimeters vs time in milliseconds) to know the highest positive and negative peak.
I have seen in the literature that stiffness is sometimes represented in kPA (kilopascals), N/m (Newton per meter) and KN/m (kilonewton per meter). Do they represent the same?
I need to know the methods/techniques and how to obtain it.
