Alberto Sanchez-Sixto

Fundación San Pablo Andalucía CEU · Sport Department

The present study compared, for the first time, the effects of 6 weeks of 20% (20VL) vs. 40% (40VL) velocity loss (VL) resistance training (RT) programs on muscle oxygen dynamics during the squat exercise. Twenty-three young men (21.4 ± 2.4 years) were randomly allocated into the 20VL group (n = 8), 40VL group (n = 7), or control group (CG; n = 8)....

El voleibol es un deporte con una gran cantidad de componentes explosivos que son imprescindibles para tener un buen rendimiento deportivo implicando dicha intensidad en acciones del juego tales como son los saltos verticales y los sprints como parte fundamental del desarrollo del juego. El efecto del fenómeno de Potenciación Post-Activación (PAP)...

The testing and assessment of resistance training exercises is a fundamental aspect for coaches and athletes. Through the force-time data measured by force plates, we have the possibility to calculate velocity, displacement, work, and power values of the centre of mass. This chapter has a theory section where we explain why force plates are useful...

Muñoz-López, A, Marín-Galindo, A, Corral-Pérez, J, Costilla, M, Sánchez-Sixto, A, Sañudo, B, Casals, C, and Ponce-González, JG. Effects of different velocity loss thresholds on passive contractile properties and muscle oxygenation in the squat exercise using free weights. J Strength Cond Res XX(X): 000-000, 2021-The current study assessed the impac...

Resumen. El objetivo de este estudio fue comprobar el efecto de la realización de una Potenciación Post-Activación (PPA) a través del ejercicio de media sentadilla sobre el rendimiento en sprint y cambio de dirección en jugadores de baloncesto. 12 jugadores de baloncesto participaron en esta investigación realizando dos sesiones. En la primera sesi...

The purpose of this study was to assess and compare the effects of plyometric training and combined training programs on vertical jump kinematics and kinetics of female basketball players. Thirty-six female basketball players were included in the study and further divided into three groups: plyometric training, n = 11; combined training n =13; and...

This study aimed to determine the effects of different verbal instructions, intended to affect the countermovement jump (CMJ) execution time, on the reactive strength index modified (RSIMod) and the time-series waveforms. Thirteen male basketball players performed six CMJs on a force plate with two different verbal instructions: ‘jump as high as po...

Background and Aims Ankle proprioception can be tested in many ways. Some studies have found improvements in individuals with chronic ankle instability after receiving treatment and training proprioceptive acuity and speed. Currently, there is a scarcity of evidence concerning percutaneous neuromodulation. The first findings were reported in the po...

The purpose of this study was to examine the effect of speed on coordination and its variability in running gait using vector coding analysis. Lower extremity kinematic data were collected for thirteen recreational runners while running at three different speeds in random order: preferred speed, 15% faster and 15% lower than preferred speed. A dyna...

Simulation studies show that jump performance can be improved by increasing the depth of countermovement. The purpose of this study was to determine how modifications to the depth of countermovement lead to changes in jump height and the biomechanical parameters related to center of mass displacement and force application. Twenty-nine competitive m...

The purpose of this study was to determine the effects of training on the force-, velocity-, and displacement-time curves using principal component analysis (PCA) to examine the pre to post intervention changes. Thirty-four trained women basketball players were randomly divided into training and control groups. The training intervention consisted o...

Peripheral arterial disease (PAD) is an artherosclerotic occlusive disorder of distal arteries, which can give rise to the intermittent claudication (IC) phenomenon, i.e., limb pain and necessity to stop. PAD patients with IC have altered their gait, increasing the fall risk. Several gait analysis works have studied acceleration signals (from senso...

Introduction: Peripheral arterial disease is a chronic disorder affecting blood flow to lower limbs and many patients can develop intermittent claudication (IC). They suffer a blood flow decrease to lower limbs, making impossible to walk short distances without feeling pain or stopping the gait. Heart Rate Variability (HRV) is a non-invasive tool b...

Resumen. Objetivo. El objetivo de la presente investigación fue evaluar el efecto de modificar la profundidad y la velocidad del contramovimiento en el salto vertical. Material y método. Once jugadores de deportes colectivos participaron en este estudio y realizaron 9 saltos con contramovimiento: 3 en los que ellos seleccionaban la velocidad y prof...

The purpose of this study was to examine the differences in coordination variability in running gait between trained runners and non-runners using continuous relative phase (CRP) analysis. Lower extremity kinematic data were collected for 22 participants during the stance phase. The participants were assigned to either a runner or non-runner group...

Purpose To analyze the complexity of the gait through the measurement of Multiscale Time Irreversibility in accelerometry signals obtained at the hip of healthy subjects and patients with intermittent claudication in order to differentiate the two situations. Methods Ten healthy elderly subjects (age 60.2 ± 4.8 years; height 173.6 ± 6.6 cm; weigh...

Purpose. The aim of the study was to evaluate the effects of countermovement depth and velocity modification in the vertical jump. Materials and methods. Eleven team sport players participated in this investigation performing nine countermovement jumps: 3 self-selected countermovement jumps (CMJ), 3 countermovement jumps with a deeper countermoveme...

Retos, número 31, 2017 (1º semestre)-114-Efecto del entrenamiento combinado de fuerza y pliometría en variables biomecánicas del salto vertical en jugadoras de baloncesto Effects of combined plyometric and resistance training in biomechanical variables of the vertical jump in basketball players Resumen. Objetivo. El propósito de la presente investi...

The aim of this investigation was to determine the influences of force application related variables and center of mass displacement on jump height differences between squat jump (SJ) and countermovement jump (CMJ). Twenty six males performed three squat jumps and three countermovement jumps with a 90° knee flexion. The center of mass displacement...

Objetivo. El propósito de la presente investigación fue determinar y comparar el efecto de un entrenamiento combinado de fuerza y pliometría en el rendimiento del salto vertical y en los parámetros de aplicación de fuerza, velocidad y desplazamiento del centro de gravedad durante el salto vertical. Material y método. Veinticinco jugadoras de balonc...

Objectives Human gait is considered as a complex system and it is known that the mechanism is fundamentally non linear. Gait dynamics are governed by deterministic chaos and appropriate mathematical tools are required for analysis. Using tools from nonlinear dynamics, these studies demonstrated that this complexity is responsible for the flexible a...

The objective of this study was to examine the differences in coordination variability in gait running between trained runners and non-runners. Kinematic data were collected from 20 participants divided into two groups (runners and non-runners) during treadmill running. Coordination variability was evaluated by calculating continuous relative phase...

The purpose of this study was to determine how simple instructions that modify the depth of countermovement lead to changes in the jump height and the biomechanical parameters related to centre of mass displacement and force application. Twenty-nine active males participated in this investigation and they performed three countermovement jumps using...

El propósito de este estudio es ampliar la información acerca del Skill Index (Tiempo sin balón/Tiempo con balón) y analizar las relaciones entre las distintas posiciones de los jugadores de fútbol a través del Zigzag Test. 36 futbolistas pertenecientes a dos equipos cadetes participaron en esta investigación y se dividieron en dos grupos (grupo A:...

Resumen: La siguiente investigación trata de aclarar los orígenes del baloncesto en la ciudad de San Fernando (Cádiz, España), así como su evolución e importancia en la actualidad. Existen artículos que tratan sobre el tema pero no están ni contrastados ni muestran una visión específica de dichos orígenes. Con este trabajo, pretendemos reunir y si...

Aunque para la redacción del texto hemos seguido el modelo tradicional, es decir (Descripción y desarrollo del juego, material empleado, organización de los participantes, reglas y variantes)…hemos incluido como novedades: la aportación de una extensa bibliografía de referencia o complementaria; presentamos en la portada de cada uno de los deportes...

Aunque para la redacción del texto hemos seguido el modelo tradicional, es decir (Descripción y desarrollo del juego, material empleado, organización de los participantes, reglas y variantes)…hemos incluido como novedades: la aportación de una extensa bibliografía de referencia o complementaria; presentamos en la portada de cada uno de los deportes...