Ibai Garcia-Tabar

• PhD, MSc
• Lecturer at University of the Basque Country

The aim was to examine the drift in the measurements of fractional concentration of oxygen (FO2) and carbon dioxide (FCO2) of a Nafion-using metabolic cart during incremental maximal exercise in 18 young and 12 elderly males, and to propose a way in which the drift can be corrected. The drift was verified by comparing the pre-test calibration value...

Maximal Lactate Steady State (MLSS) and Lactate Threshold (LT) are physiologically-related and fundamental concepts within the sports and exercise sciences. Literature supporting their relationship, however, is scarce. Among the recognized LTs, we were particularly interested in the disused "Minimum Lactate Equivalent" (LEmin), first described in t...

This report aims to generate an evidence-based debate of the Critical Power (CP), or its analogous Critical Speed (CS), concept. Race times of top Spanish runners were utilized to calculate CS based on three (1500-m to 5000-m; CS1.5-5km ) and four (1500-m to 10000-m; CS1.5-10km ) distance performances. Male running world records from 1000 to 5000-m...

Purpose: This study aims to develop gender-specific operational equations for prediction of cardiorespiratory fitness in female footballers. Method: Forty-eight semi-professional female footballers performed an intermittent progressive maximal running test for determination of fixed blood lactate concentration (FBLC) thresholds. Relationships betw...

BACKGROUNDː The aim of this study was fourfold: to describe the cardiovascular capacity of amateur trail runners measured by a maximum incremental test both in-laboratory and in-field conditions; to analyse the physical and physiological performance of the runners in a trail competition; to analyse the associations, if any, between the laboratory o...

This study investigated the associations between preseason and in-season physical performance measures with external workload [global system positioning (GPS) data] in professional soccer players. Twenty-one players completed hamstring eccentric strength, countermovement jump (CMJ), 20-m sprint, and Yo-Yo intermittent recovery tests before (preseas...

Purpose: To identify the physical conditioning and functional injury screening characteristics of elite female soccer players. Methods: This review was prospectively registered (PROSPERO CRD4202346765). Searches were conducted in PubMed/MEDLINE, Cochrane Library, Scopus, and Web of Science (from inception in March to July 2023). Updated searches we...

Purpose To evaluate the agreement between the two Gas Exchange Thresholds (GETs = GET1 and GET2), identified by the conventional V-Slope method, and two Respiratory Frequency Thresholds (f R Ts = f R T1 and f R T2) obtained from a novel, low-cost, and simple method of breakpoint determination. Methods Fifty middle-aged males (age: 50–58 years; $$\...

This study aimed to investigate the applicability of the Lactate Threshold (LT) to predict maximal oxygen uptake (V̇O2max) and demarcate the boundary between the moderate- to heavy-intensity domain (HRm-h) in old age in comparison to the most utilized methods. A cross-sectional validation study was conducted. Participants aged 61 to 77 performed a...

INTRODUCTION: In recent years, the physical requirements of female football matches have increased along with a change in the injury profile of the players (1-3). However, it is uncertain whether the physical performance and functional injury risk assessment profile of the players has evolved parallel to these changes. Therefore, the aim of this st...

Inertial Measurement Units (IMUs) measure trunk-acceleration variables related to both running performances and rehabilitation purposes. This study examined both the reliability and sex-based differences of these variables during incremental treadmill running test. Eighteen endurance runners performed a test-retest on different days, and thirty run...

Background Unilateral and bilateral peripheral vestibular hypofunction (UVH and BVH) often complains of dizziness, gaze, and balance disturbances. There is a lack of evidence on exercise intervention in UVH and BVH patients. To investigate the effect of an eight-week supervised multicomponent exercise program in people suffering from UVH or BVH in...

Women’s football academy players spent the greatest proportion of their training time, almost 40%, performing SSGs (1). Coaches use to implement non-constrained SSGs known as free play at the end of the sessions to enhance players’ decision-making and confront them with competitive physical demands. Although being a daily-employed training task fro...

Since the structural traits of training tasks constrain young football players’ motor behaviour, coaches manipulate them habitually to elicit players’ functionality in challenging training scenarios such as SSGs with pitch obstacles. However, research examining the effects of task constraints on players’ motor behaviour in women’s football is lacki...

Objectives.- To test the predictive accuracy of gender-specific operational equations to determine the Fixed Blood Lactate Concentration (FBLC) thresholds, and to examine the relationships between the FBLC thresholds and the performance on the 30-15 Intermittent Fitness Test (VIFT). Methods.- FBLC thresholds and VIFT were determined in a semi-profe...

ID: 1143 CONCURRENT VALIDITY OF THE STRYD POWER METER DURING WALKING AT DIFFERENT SLOPES AND BACKPACK LOADS. [1143] Author(s): PINEDO-JAUREGI, A.; GARCIA-TABAR, I.; CÁMARA, J., Institution: UNIVERSITY OF THE BASQUE COUNTRY (UPV-EHU) , Country: SPAIN INTRODUCTION: Mountain rescuers, wildland firefighters and military personnel could be treated as el...

Purpose: This 11-week study aimed to correlate the neuromuscular profile and the total volume of resisted sprint training (RST) under different velocity loss (VL) magnitudes in male professional soccer players. Methods: Seventeen soccer players (age 25.8±4.3 years; height 180.0±8.6 cm; weight 77.7±9.7 kg) were randomly allocated into two training...

Objectives To examine 1) the contribution of physiological performance variables to Olympic-distance (OD) triathlon performance, and 2) the links between an 8-wk intensified training plus competition preceding the main OD triathlon race and the changes in the physiological status in triathletes. Study Design An observational longitudinal study. M...

Objectivesː To examine 1) the contributions of physiological performance variables to Olympic-distance (OD) triathlon performance, and 2) the links between 8-wks intensified training plus competition preceding the main OD triathlon race and the changes in the physiological status in triathletes. Study Design: An observational longitudinal study. Me...

Purpose: This 11-week study aimed to correlate the neuromuscular profile and the total volume of resisted sprint training (RST) under different velocity loss (VL) magnitudes in male professional soccer players. Methods: Seventeen soccer players (age 25.8±4.3 years; height 180.0±8.6 cm; weight 77.7±9.7 kg) were randomly allocated into two training g...

Background: The Styrd Power Meter is gaining special interest for on-field gait analyses due to its low-cost and general availability. However, the reliability and validity of the Stryd during walking on positive slopes using different backpack loads have never been investigated. Research Question: Is the Stryd Power Meter reliable and valid to qu...

Purpose: The aim of this study was to describe the anthropometrical and cardiovascular characteristics of short course trail runners and analyze the associations, if any, between both anthropometric and cardiovascular features of amateur trail runners. Material and method: Anthropometrical evaluation and an incremental maximum test with 10% of grad...

Abstract: The main objectives of the present study were to describe the injury incidence and to analyze the anthropometric and physical characteristics of players from three high-level women's football teams. The present study involved 54 female football players (21.9 ± 4.9 years old) from three different teams competing in the Spanish Reto Iberdro...

Background: Volleyball is a complex intermittent sport characterized by short explosive technical movements, many of which involve vertical jumping. The assessment of mechanical jumping variables in relation to both injury prevention and performance enhancement through the use of wearable technologies is becoming a new training tool among professio...

Background: Volleyball is a complex intermittent sport characterized by short explosive technical movements, many of which involve vertical jumping. The assessment of mechanical jumping variables in relation to both injury prevention and performance enhancement through the use of wearable technologies is becoming a new training tool among professi...

Objetivo: Los objetivos del presente estudio fueron describir las características antropométricas y la capacidad cardiovascular de corredores amateurs de trail running de corta distancia y analizar si existe asociación entre las características antropométricas y la capacidad cardiovascular en los corredores de montaña. Método: A un grupo de 10 corr...

We have read with great interest the review and exchange letters concerning the Maximal Metabolic Steady State (MMSS) recently published in the journal. The review criticized the definition of the Maximal Lactate Steady State intensity (MLSSint) and suggested that, rather than MLSSint, the Critical Power (CP) or its analogous Critical Speed (CS) sh...

Introduction This study aimed to 1) test the predictive capacity and accuracy of the female operational regression equations to determine the Fixed Blood Lactate Concentration (FBLC) thresholds previously developed, and 2) examine the relationships between the FBLC thresholds and the performance on the popularized and validated 30-15 Intermittent F...

A pesar de que las acciones físicas que los jugadores de baloncesto en silla de ruedas (BSR) deben realizar en los partidos son acciones que implican múltiples cambios de dirección y acciones de esprint y cambio de dirección repetidos, en la actualidad no existe ningún trabajo científico que analice la reproducibilidad de distintos test de capacida...

A pesar de que las acciones físicas que los jugadores de baloncesto en silla de ruedas (BSR) deben realizar en los partidos son acciones que implican múltiples cambios de dirección y acciones de esprint y cambio de dirección repetidos, en la actualidad no existe ningún trabajo científico que analice la reproducibilidad de distintos test de capacida...

Resumen Los test de campo más utilizados hasta el momento para medir el esprint y la capacidad de cambiar de dirección en baloncesto en silla de ruedas (BSR) implican una acción única, concreta y son de una naturaleza determinada. En este sentido, el análisis de la reproducibilidad de distintos test de capacidad de cambio de dirección, esprines y c...

This study aims 1) to compare repeated change of direction ability (rCODA) and bench press (BP) between low (A category, ≤2.5) and high (B category, ≥3.0) sport classes and 2) to analyze the relationships between rCODA and BP performance in a sample of wheelchair basketball (WB) players. Seventeen world-class WB players volunteered participated in...

We have read with interest the review written by Jones et al. (2019) published in a recent volume-issue (volume 7, issue 5) of the journal. The review covers all the fundamental methodological factors of both maximal lactate steady state (MLSS) and critical power (CP). Criticisms regarding MLSS intensity (MLSSint) determination are to some extent c...

This study aimed to investigate training-induced fitness changes and their relationship with training-competition load during half soccer season (18-wks). Training load [heart rate (HR) and ratings of perceived exertion (RPE)] and match time were monitored, including 108 training (3223 individuals) and 23 match sessions, in thirty-eight youth elite...

Purpose: The association between an overlooked classical Lactate Threshold (LT), named “Minimum Lactate Equivalent” (LEmin), with Maximal Lactate Steady State (MLSS) has been recently described with good MLSS prediction results in endurance-trained runners. This study aimed to determine the applicability of LEmin to predict MLSS in lower aerobic-co...

Introduction The aim of this study was to demonstrate that the Lactate Threshold (LT), conceptually comprehended as in the old days (Owles, 1930), could be more accurate and functional method in comparison with the most common functional submaximal exercise field tests used for aerobic conditioning assessment and aerobic (either continuous or inter...

Objetivo: demostrar que el umbral aeróbico (LT) puede ser un método valido y más práctico que los existentes para evaluar la condición aeróbica en la tercera edad. Método: Participaron 12 individuos de 69 ± 5 años de edad que realizaron de manera aleatoria 1) 6-minutos-marcha (6MWT); 2) Shuttle 20-m continuo (SC20m) hasta el 90% de la frecuencia...

We have read with great interest the review written by D.Phil. Susan A. Ward published in a recent volume-issue (volume 118, issue 5) of the journal. Our main concern arises from the alternative validation approaches and their on-field clinical actual practical applications to control the quality of breath-by-breath systems´ measurements covered by...

The current Ph.D. dissertation revolves around the determination of aerobic capacity, with special reference to the development of practical strategies to overcome some limitations that sport scientific practitioners usually encounter at the time to give scientific endurance support to athletes or physical activity practitioners. This doctoral thes...

Introducción Este estudio tuvo como objetivo validar el uso de una sola toma de lactato capilar medida tras 5' de carrera a 10 km·h-1 (BLC 10), y la velocidad asociada al 90% del pulso máximo (S 90) para predecir y facilitar la monitorización de los umbrales de concentraciones fijas de lactato (FBLC) en atletas de élite. Materiales y Métodos Se rea...

This study aimed to predict the velocity corresponding to the maximal lactate steady state (MLSSV) from non-invasive variables obtained during a maximal multistage running field test (modified University of Montreal Track Test, UMTT), and to determine whether a single constant velocity test (CVT), performed several days after the UMTT, could estima...

This study aimed to validate the use of a single blood lactate concentration measure taken following a 12 km h(-1) running stage (BLC12) to predict and monitor fixed blood lactate concentration (FBLC) thresholds. Three complementary studies were undertaken. Study I: the relationships between BLC12 and the running speeds at FBLC of 3 mmol L(-1) (S3m...

Musculoskeletal joint and/or connective tissue disorders are common among athletes and sedentary adults due to acute or chronic joint damage scenarios. Eggshell membrane food supplement contains naturally occurring protein and glycosaminoglycans essential for cartilage and joint function. Due to its potential anti-inflammatory effects, there is now...

This study aimed to predict the velocity corresponding to the maximal lactate steady state (MLSSV) from non-invasive variables obtained during an incremental maximal running test (University of Montreal Track Test, UMTT) and to determine whether a single constant velocity test (CVT), performed several days after the UMTT, could estimate the MLSSV....

The aim of this study was to investigate whether the speed associated with 90% of maximal heart rate (S90%HRmax) could predict speeds at fixed blood lactate concentrations of 3 mmol·L (S3mM) and 4 mmol·L (S4mM). Professional team-sport players of futsal (n = 10), handball (n = 16) and basketball (n = 10) performed a four-stage discontinuous progres...

Introduction During sprint exercise pulmonary ventilation is dramatically increased, likely due to a strong activation of the central command. In fact, blood lactate does not increase in the femoral vein during the first 10 s of a Wingate test (Calbet et al. 2003). At the end of the sprint, pulmonary ventilation (VE) remains elevated leading to lo...

Introduction Anaerobic lactic thresholds (ATs) often occur at a mean intensity close to 90% of maximal heart rate (HRmax) (Hurley et al., 1984; Garcia-Tabar et al., 2013). Notwithstanding, whether the speed at a given percentage of HRmax (%HRmax) could be used as an endurance performance variable has never been investigated. The aim of this study w...

Introducción Existen estudios que han investigado el efecto del entrenamiento de fuerza-máxima en el fútbol, pero pocos son los que han estudiado el del entrenamiento de fuerza-explosiva. El objetivo del presente estudio fue analizar los efectos en la altura de salto vertical con contra-movimiento (SCM) y en las adaptaciones hormonales cuando al en...

Garcia-Tabar I, Sánchez-Medina L, Aramendi JF, Ruesta M, Ibañez J, Gorostiaga EM. Heart Rate Variability Thresholds Predict Lactate Thresholds in Professional World-Class Road Cyclists. JEPonline 2013;16(5):38-50. This study aimed to predict widely used aerobic threshold (AeT) and anaerobic lactate thresholds (AnTs) and other cycling performance va...

This study aimed to predict widely used aerobic threshold (AeT) and anaerobic lactate thresholds (AnTs) and other cycling performance variables from mathematically determined heart rate variability thresholds (HRVTs). Twelve male professional world-class road cyclists performed a continuous maximal graded cycling test. Blood lactate concentration (...