43 results match your criteria: "Physical Performance and Sports Research Center.[Affiliation]"

Article Synopsis
  • Vitamin D (VD) plays a key role in bone health and immune function and may help protect against chronic inflammatory diseases.
  • The study involved treating THP-1 cells with VD and a chickpea protein hydrolysate (H30BIO) to assess their effects on inflammation and cytokine production.
  • Results showed that while VD alone reduced pro-inflammatory gene expression and cytokine levels, combining VD with H30BIO enhanced certain gene expressions, indicating a potential synergistic effect in modulating inflammation.
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Article Synopsis
  • - Repeated-sprint ability is crucial for football performance, with hamstring injuries commonly occurring during sprints when players are fatigued.
  • - A study with 14 semiprofessional soccer players implemented 8 weeks of repeated-sprint training (RST), which involved multiple sets of short sprints with brief recovery periods.
  • - Results showed significant improvements in sprint times and kinematic patterns, indicating that RST enhances sprint performance and promotes safer running mechanics, especially when players are fatigued.
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  • This study examined how different strategies for prescribing training loads (general vs. individual load-velocity equations) affect the relationship between velocity loss (VL) and the number of repetitions completed in the bench press.
  • Thirty-five participants performed bench-press repetitions to failure using various load percentages (40%, 60%, and 80% of their 1-rep max) over six sessions, applying both strategies for adjusting loads.
  • The findings indicate a strong correlation between repetitions completed and VL across different loads; however, variations were more pronounced at higher loads, suggesting that while VL can effectively predict repetitions, caution is needed with heavier weights.
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Background: Evidence suggests that aerobic training with blood flow restriction is beneficial for treating fibromyalgia. This study evaluated the feasibility, safety, and effects of an aerobic training program with blood flow restriction for women with fibromyalgia.

Methods: Thirty-seven women with fibromyalgia were included, and thirteen with an average age of 59 ± 3, a BMI of 26 ± 3, and who were polymedicated started the intervention period.

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Herrera-Bermudo, JC, Puente-Alcaraz, C, Díaz-Sánchez, P, González-Badillo, JJ, and Rodríguez-Rosell, D. Influence of grip width on the load-velocity relationship and 1 repetition maximum value in the bench press exercise: a comparative and reliability analysis of mean velocity vs. mean propulsive velocity vs.

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Effects of Velocity Loss During Bench-Press Training With Light Relative Loads.

Int J Sports Physiol Perform

October 2024

Science-Based Training Research Group, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain.

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.

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The purpose of this study was to investigate the effects of light and heavy loads in the squat exercise on kinematics and mechanical variables in recreationally trained men and women. Twenty-two men and sixteen women were assigned to 4 groups: 40% and 80% one-repetition maximum (1RM) male (M40 and M80) and female (F40 and F80). Over 6 weeks, participants performed twice a week the full back-squat (SQ) exercise with initially equated relative volume load (Sets*Repetitions/Set*%1RM).

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Purpose: To examine the effects of 4 programming models (linear [LP], undulating [UP], reverse [RP], and constant [CP]) on physical performance.

Methods: Forty-eight moderately strength-trained men were randomly assigned to LP, UP, RP, and CP groups according to their 1-repetition maximum (1RM) in the full-squat exercise (SQ) and followed an 8-week training intervention using the SQ and monitoring movement velocity for every repetition. All groups trained with similar mean relative intensity (65% 1RM), number of repetitions (240), sets (3), and interset recovery (4 min) throughout the training program.

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Jiménez-Lozano, M, Yáñez-García, JM, Mora-Custodio, R, Valle-Salguero, A, Díez-Fernández, DM, Franco-Márquez, F, González-Badillo, JJ, and Rodríguez-Rosell, D. Load-time and load-speed relationship in the resisted sled sprint exercise: what independent variable most accurately determines the relative load? J Strength Cond Res 37(11): 2167-2177, 2023-The aims of this study were to analyze the load-speed and load-time relationships in the resisted sled sprint exercise using different variables as relative load and to estimate the decrement of speed sprint and the increase of sprint time across different loads. Thirty young healthy men performed a progressive loading test in the countermovement jump (CMJ) exercise to determinate the load that elicited a 2 m·s-1 peak velocity (PV2-load) and in the full squat exercise to obtain the 1 repetition maximum (1RM) value and the load that elicited a 1 m·s-1 mean velocity (V1-load).

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Relationship between relative age measured through decimal age, physical variables and anthropometry in elite youth soccer players.

Phys Sportsmed

August 2024

Physical Performance and Sports Research Center, Department of Sports and Computer Sciences, Faculty of Sport Sciences, Pablo de Olavide University, Seville, Spain.

Introduction: Age differences between athletes born in the same year, as well as an over-representation of older players, are known as the Relative Age Effect (RAE). Players born at the beginning of the selection year have a physical and anthropometric advantage over their younger peers. Experts keep looking for new prediction variables for talent identification.

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This study aimed to examine the effects of phenylcapsaicin (PC) supplementation on strength performance and neuromuscular activity in young trained male subjects. A total of 25 trained subjects [full-squat (SQ) one repetition maximum (1RM) = 125.6 ± 21.

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Article Synopsis
  • The study examines various techniques for measuring fat-free mass (FFM) and compares their accuracy against dual-energy X-ray absorptiometry (DXA) in recreational resistance-trained males.
  • Participants completed a 10-week training and diet program, showing significant FFM increases via bioelectrical impedance analysis (BIA) and most anthropometric methods, but not detected by DXA or two specific anthropometric equations.
  • Ultimately, the study suggests that different methods yield varying FFM results, recommending the Dunne et al. equation for monitoring FFM changes and cross-sectional analysis.
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Background: After the COVID-19 pandemic, society has become more aware of the importance of some basic hygienic habits to avoid exposure to pathogens transmitted via hands. Given that a high frequency of touching mucous membranes can lead to a high risk of infection, it is essential to establish strategies to reduce this behavior as a preventive measure against contagion. This risk can be extrapolated to a multitude of health scenarios and transmission of many infectious diseases.

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Janicijevic, D, Pérez-Castilla, A, Miras-Moreno, S, Ortega-Becerra, M, Morenas-Aguilar, MD, Smajla, D, Sarabon, N, and García-Ramos, A. Effect of a high-intensity handball-specific fatigue protocol focused on the leg contralateral to the throwing arm on interlimb asymmetries. J Strength Cond Res 37(7): 1382-1389, 2023-This study aimed to elucidate which countermovement jump (CMJ) variant (unilateral or bilateral) is more sensitive to detect the decrement in kinetic CMJ-derived variables of the leg more actively involved in a handball-specific fatigue protocol.

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Sleep quality is mediated by physical activity level in adolescents.

J Sports Med Phys Fitness

June 2023

Department of Specific Didactics, Faculty of Education, Psychology and Social Work, University of Lleida, Lleida, Spain.

Background: Sleep is essential for the adolescent's health and well-being. Despite existing evidence of the positive relationship between physical activity and quality of sleep, some other factors could mediate this association. The purpose of the present study was to clarify the interaction between the level of physical activity and sleep in adolescents depending on their gender.

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Soccer is a predominantly tactical sport and, therefore, tactical training has become the most widely used strategy to improve players' performance. The objective of the present study was to assess the workload of soccer-specific drills in professional players over a two-season period in an established context. GPS technology was used to record the data.

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Objectives: The aim of this study was to examine whether antioxidant vitamin supplementation with vitamin C (VitC) and vitamin E (VitE) affects the hypertrophic and functional adaptations to resistance training in trained men.

Methods: This was a double-blind, randomized controlled trial in which participants were supplemented daily with VitC and VitE ( n = 12) or placebo ( n = 11) while completing a 10-wk resistance training program accompanied by a dietary intervention (300 kcal surplus and adequate protein intake) designed to optimize hypertrophy. Body composition (dual-energy x-ray absorptiometry), handgrip strength, and one-repetition maximum (1-RM), maximal force (F0), velocity (V0), and power (Pmax) were measured in bench press (BP) and squat (SQ) tests conducted before and after the intervention.

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For more than a century, many concepts and several theories and principles pertaining to the goals, organization, methodology and evaluation of the effects of resistance training (RT) have been developed and discussed between coaches and scientists. This cumulative body of knowledge and practices has contributed substantially to the evolution of RT methodology. However, a detailed and rigorous examination of the existing literature reveals many inconsistencies that, unless resolved, could seriously hinder further progress in our field.

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The aim of this study was to examine the effects of a traditional resistance training scheme on the relative strength (RS), relative peak-force (RPF), strength deficit (SDef), and vertical jump and sprint abilities in elite young soccer players. Thirty-five under-20 soccer players from two professional clubs were assessed before and after a 4-week competitive period. One team performed 12 sessions of a structured resistance training program and the other maintained their regular soccer-specific training and competitive routines.

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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 responses in males and females? What is the main finding and its importance? Using resistance training methods that regulated the within-set fatigue limit, males appeared to be more susceptible to fatigue than females before the training period. This between-sex difference was diminished after training. The predominant mechanisms of fatigue from 20 and 40% velocity-based resistance training appear to be within the musculature.

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The Physiological Effects of Face Masks During Exercise Worn Due to COVID-19: A Systematic Review.

Sports Health

September 2022

Department of Education Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Madrid, Spain.

Context: Use of face masks in sport has been a particularly complex issue during the COVID-19 pandemic.

Objectives: A systematic review to examine the physiological effects the different types of masks have on healthy adults when doing physical exercise.

Data Sources: PubMed, SPORTDiscus, Scopus, and Litcovid were searched up to March 20, 2021, following the PRISMA model.

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Velocity-based resistance training: do women need greater velocity loss to maximize adaptations?

Eur J Appl Physiol

May 2022

NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV225, 40014, Jyväskylä, Finland.

Purpose: Men and women typically display different neuromuscular characteristics, force-velocity relationships, and differing strength deficit (upper vs. lower body). Thus, it is not clear how previous recommendations for training with velocity-loss resistance training based on data in men will apply to women.

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Background: The main aim of this study was (1) to find an index to monitor the loading intensity of flywheel resistance training, and (2) to study the differences in the relative intensity workload spectrum between the FW-load and ISO-load.

Methods: twenty-one males participated in the study. Subjects executed an incremental loading test in the squat exercise using a Smith machine (ISO-load) or a flywheel device (FW-load).

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