Beatriz Bachero-Mena

• PhD, MSc.
• Proffesor and Researcher at University of Seville

This study aimed to analyze the evolution of repetition velocity throughout a set until failure in the bench-press exercise and to analyze the relationships between the percentage of performed repetitions (%Rep) regarding the maximum number of repetitions that can be completed (MNR) and the percentage of velocity loss (VL) in women. Sixteen women p...

Purpose : This study analyzed the influence of 2 velocity-based training-load prescription strategies (general vs individual load–velocity equations) on the relationship between the magnitude of velocity loss (VL) and the percentage of repetitions completed in the bench-press exercise. Methods : Thirty-five subjects completed 6 sessions consisting...

Purpose: This study explored the effects of 4 bench-press (BP) training programs with different velocity-loss (VL) thresholds (0%, 15%, 25%, and 50%) on strength gains and neuromuscular adaptations. Methods: Forty-six resistance-trained men (22.8 [4.4] y) were randomly assigned into 4 groups that differed in the VL allowed within the set: 0% (VL0),...

(1) Background: The aim of this paper is to analyze the acute effects of different velocity loss (VL) thresholds during a full squat (SQ) with blood-flow restriction (BFR) on strength performance, neuromuscular activity, metabolic response, and muscle contractile properties. (2) Methods: Twenty strength-trained men performed four protocols that dif...

The main purpose of this research was to detect and analyze the degree of presence of misconceptions and false beliefs related to physical activity and sport in a sample of students in this area of studies. The sample was made up of a total of 105 students in non-university higher education. Data collection was carried out through the telematic adm...

The aim of this study was to investigate the interplay between the force–length (F–L) and force–velocity (F–V) potentials of gastrocnemius medialis (GM) muscle fascicles, the cumulative muscle activity per distance travelled (CMAPD) of the lower limb muscles (GM, vastus lateralis, biceps femori, tibialis anterior) and net energy cost (Cnet) during...

Objetivo: Analizar las respuestas agudas de una prueba de subida de escaleras con equipo especifico sobre distintas variables mecánicas, metabólicas y fisiológicas en un grupo de bomberos profesionales. Método: 34 bomberos (Edad: 42.7  8.2 años; Peso: 76.16  6.70 kg; Estatura: 177  5 cm) realizaron una prueba de subida de una escalera de seis pl...

New findings: What is the central question of this study? Do males and females differ in fatiguability during dynamic loadings, and what are the acute neuromuscular and hormonal responses to 20% versus 40% velocity-loss resistance loadings? How does an 8-week velocity-loss resistance training period modify acute neuromuscular and hormonal response...

This study combines metabolic and kinematic measurements at the whole‐body level, with EMG and ultrasound measurements to investigate the influence of muscle‐tendon mechanical behaviour on the energy cost (Cnet) of walking (from 2 to 8 km·h‐1). Belly gearing (Gb = Δmuscle‐belly length/Δfascicles length) and tendon gearing (Gt = ∆muscle‐tendon unit...

Resistance training (RT) is one of the most popular methods of exercise for improving physical fitness. The current interest in RT by women is evidenced by the great number of women who now train and the growth of female training contests. It is well documented that long-term systematic RT causes increased muscle strength and cardiovascular functio...

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...

Rodríguez-Rosell, D, Sáez de Villarreal, E, Mora-Custodio, R, Asián-Clemente, JA, Bachero-Mena, B, Loturco, I, and Pareja-Blanco, F. Effects of different loading conditions during resisted sprint training on sprint performance. J Strength Cond Res XX(X): 000-000, 2020-The aim of this study was to compare the effects of 5 loading conditions (0, 20,...

The purpose of this study was to describe the mechanical and metabolic responses of a typical high-intensity training session in high-level 800-m athletes. Nine male high-level 800-m athletes (personal best 1:43–1:56 min:ss) performed a typical high-intensity interval training session consisting of 5 × 200 m with 4 min rest. Countermovement jump an...

Purpose: This study aimed to compare the effects of unresisted versus heavy sled sprint training (0% vs 40% body mass [BM]) on sprint performance in women. Moreover, the effects of the aforementioned loads on resisted sprint and jump performance were analyzed. Methods: Twenty-eight physically active women were randomly allocated into 2 groups: u...

BACKGROUND: The aim of the present study was to provide physical and strength-related characteristics of 800 m athletes with regard to their initial performance level. METHODS: Fourteen male athletes of different levels in 800 m running (with personal best ranging from 1'43" s to 1'58") participated in this study and were divided into three groups...

Objective This study aimed to compare the effects of four velocity‐based training (VBT) programs in bench‐press (BP) between a wide range of velocity loss (VL) thresholds – 0% (VL0), 15% (VL15), 25% (VL25) and 50% (VL50) – on strength gains, neuromuscular adaptations and muscle hypertrophy. Methods Sixty‐four resistance‐trained young men were rand...

Lizana, JA, Bachero-Mena, B, Calvo-Lluch, A, Sánchez-Moreno, M, Pereira, LA, Loturco, I, and Pareja-Blanco, F. Do faster, stronger, and more powerful athletes perform better in resisted sprints? J Strength Cond Res XX(X): 000-000, 2020-This study aimed to analyze the relationships between different strength, power, and speed abilities and resisted...

Purpose: To analyze the acute and short-term physical and metabolic responses to resisted sprint training with 5 different loading conditions (0%, 20%, 40%, 60%, and 80% body mass). Methods: Fifteen male participants performed 8 × 20-m sprints with 2-minute rests between sprints with 5 different loading conditions. Subjects performed a battery o...

Purpose: This study aimed to compare the effects of four resistance training (RT) programs with different velocity loss (VL) thresholds: 0% (VL0), 10% (VL10), 20% (VL20) and 40% (VL40) on sprint and jump performance, muscle strength, neuromuscular, muscle hypertrophy and architectural adaptations. Methods: Sixty-four young resistance-trained men...

Purpose: To analyze the relationships between the evolution of training-load values and countermovement jump (CMJ) as an indicator of stress and fatigue in a high-level 800-m runner during a whole season, including indoor (ID) and outdoor season (OD). Methods: Over 42 weeks, daily training load was quantified as the result of the product of the...

Abstract Bachero-Mena, B, Pareja-Blanco, F, and González-Badillo, JJ. Effects of resistance training on physical performance in high-level 800-meter athletes: a comparison between high-speed resistance training and circuit training. J Strength Cond Res XX(X): 000–000, 2019—This study compared the effects of 2 resistance training programs during 25...

Introduction: One emerging method to train athletes is to assign a specific lifting velocity rather than load. Using these methods, researchers have observed varying adaptations from assigning different levels of velocity-loss (ranging from 1040% of initial velocity) prior to terminating each set [1]. However, manifestations of neuromuscular fatigu...

The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conduct...

This study analysed the relationships between sprinting, jumping and strength abilities, with regard to 800 m running performance. Fourteen athletes of national and international levels in 800 m (personal best: 1:43-1:58 min:ss) completed sprint tests (20 m and 200 m), a countermovement jump, jump squat and full squat test as well as an 800 m race....

The aim of this study was to investigate the changes in the relationships between repeated sprint ability (RSA) and anthropometric measures as well as fitness qualities in soccer players. Twenty-one professional soccer players performed several anthropometric and physical tests including countermovement vertical jumps (CMJs), a straight-line 30 m s...

High performance in a vertical jump, ability to repeat short sprints (RSA) and muscle power are all three most relevant factors for professional basketball players. Still, there is a lack of studies analyzing the differences of these variables between professional and young basketball players. The aim of this research is to study the differences on...

The optimal resisted load for sprint training has not been established yet, although it has been suggested that a resistance reducing the athlete's velocity by more than 10% from unloaded sprinting would entail substantial changes in the athlete's sprinting mechanics. This investigation has evaluated the effects of a 7-week, 14-session sled resiste...

The repeated sprint ability (RSA), counter-movement jump (CMJ) performance and upper-body strength are very important variables in high-level basketball competition. However, the relationships among these variables are poorly studied in elite basketball players. Thus, the purpose of this research is to study the relationships among the Running-Base...