Velocity Loss as an Indicator of Neuromuscular Fatigue during Resistance Training

Sánchez‐Medina, Luis; González-Badillo, Juan José

doi:10.1249/mss.0b013e318213f880

Cited by 528 publications

(643 citation statements)

References 33 publications

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Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

“…Sánchez-Medina and González-Badillo [47] observed that decreases in velocity across sets of different load and repetition schemes was very strongly related to blood lactate concentration for both the bench press (r = 0.95-0.97) and squat (r = 0.93-0.97) exercises. In addition, velocity has been found to gradually decrease with each repetition across a set of resistance exercise [47,48]. Given that fatigue is thought to occur as a continuous phenomenon, rather than at an abrupt failurepoint [49], the gradual decrease in repetition velocity that occurs during a set of resistance exercise could be interpreted as evidence of impaired neuromuscular function [47].…”

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

“…In addition, monitoring velocity during resistance training may be used to estimate the metabolic stress and neuromuscular fatigue during exercise [47]. Sánchez-Medina and González-Badillo [47] observed that decreases in velocity across sets of different load and repetition schemes was very strongly related to blood lactate concentration for both the bench press (r = 0.95-0.97) and squat (r = 0.93-0.97) exercises.…”

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

“…In addition, velocity has been found to gradually decrease with each repetition across a set of resistance exercise [47,48]. Given that fatigue is thought to occur as a continuous phenomenon, rather than at an abrupt failurepoint [49], the gradual decrease in repetition velocity that occurs during a set of resistance exercise could be interpreted as evidence of impaired neuromuscular function [47].…”

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

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Training Monitoring for Resistance Exercise: Theory and Applications

et al. 2016

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Key Points• To quantify resistance exercise, it is important to understand the numerous factors contributing to the overall intensity of training, rather than simply the relative load being lifted.• Methods to monitor the external volume load, perceptual training intensity, subjective wellness, and physical performance during resistance exercise all appear useful methods for monitoring resistance training.• Strength coaches should identify which monitoring tools are applicable and viable for their athletes, and should take an integrative approach to resistance training monitoring to help inform their practice.3 AbstractResistance exercise is difficult to quantify due to its inherent complexity with numerous training variables contributing to the training dose (type of exercise, load lifted, training volume, inter-set rest periods and repetition velocity). In addition, the intensity of resistance training is often inadequately determined as the relative load lifted (% 1-repetition maximum), which does not account for the effects of inter-set recovery periods, repetition velocity, or the number of repetitions performed in each set at a given load. Methods to calculate the volume load associated with resistance training, as well as the perceived intensity of individual sets and entire training sessions have been shown to provide useful information regarding the actual training stimulus. In addition, questionnaires to subjectively assess how athletes are coping with the stressors of training and portable technologies to quantify performance variables such as concentric velocity may also be valuable. However, while several methods have been proposed to quantify resistance training, there is not yet consensus regarding how these methods can be best implemented and integrated to complement each other. Therefore, the purpose of this review is to provide practical information for strength coaches to highlight effective methods to assess resistance training, and how they can be integrated into a comprehensive monitoring program.4

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Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

Section: Actual 1rm Velocity (Not Typically Measured)mentioning

confidence: 99%

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Training Monitoring for Resistance Exercise: Theory and Applications

et al. 2016

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“…Previos estudios informan que el salto vertical (CMJ) ha mostrado valores altos de correlación con los niveles de amonio y lactato en sangre, posicionándose como un posible predictor de fatiga (Sánchez-Medina & González-Badillo, 2011). Por ello, testear la capacidad de salto vertical se ha utilizado como método para contro-d e p o r t e lar la carga de entrenamiento en modalidades como el atletismo, donde las acciones específicas de la competición tienen mucha relación con la capacidad de producir fuerza por unidad de tiempo y donde el rendimiento dependerá del estado físico del atleta (Jiménez-Reyes & González-Badillo, 2011).…”

Section: Introductionunclassified

Comparison of physical demands in small sided games and competition in football players under 13

Nevado-Garrosa¹,

Suárez-Arrones²

2015

CCD

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ResumenEl objetivo del trabajo fue comparar las demandas físicas de tres situaciones de fútbol reducido, modificando de manera concurrente el espacio relativo de juego y el número de jugadores participantes, con las demandas propias de la competición en base al perfil físico de cada jugadora. También se estudiaron los efectos en la capacidad de salto vertical (CMJ) tras cada tarea de juego reducido y la relación con diferentes variables cinemáti-cas. El estudio se llevó a cabo con 12 jugadoras de fútbol de categoría sub 13. Las tareas fueron monitorizadas con dispositivos GPS, y consistieron en un 3x3 (51 m 2 /j), 4x4 (90 m 2 /j) y 5x5 (144 m 2 /j). También se monitorizaron 7 partidos de competición. Se encontraron diferencias sustanciales (> 75% probabilidad) en las demandas fí-sicas de cada tarea de fútbol reducido y respecto a la competición. No se encontraron diferencias sustanciales entre la pérdida de capacidad de salto de las distintas tareas de fútbol reducido. En conclusión, se ratifica la capacidad de los juegos reducidos para reproducir las demandas de la competición, aunque es necesario complementar las demandas de carrera a alta intensidad con algún entrenamiento complementario. Un aumento del espacio relativo se traduce en demandas físicas más exigentes y próximas a la competición. La pérdida de salto no es un método válido para discriminar cargas en diferentes tareas de fútbol reducido, aunque parece ser un buen indicador de la fatiga que acumula el jugador.Palabras clave: GPS, juegos reducidos, fútbol, CMJ. AbstractThe aim of the study was to compare the physical demands, based on the physical profile of each player, of three small sided games, modifying the relative pitch area per player, and the physical demands of the competition. The jumping capacity was also tested after each small sided games. A total of 12 football players under 13 participated in the study. The three small sided games and football matches were monitored using GPS devices: 3x3 (51 m 2 /p), 4x4 (90 m 2 /p) y 5x5 (144 m 2 /p) and 7 competition matches. Substantial differences (> 75% probability) were found in the physical demands of each small sided game and the competition, even though the jumping capacity was maintained without change. In conclusion, this study suggests that the capacity of small sided games reproduces the physical demands of the real game, although it is necessary mixed training gather high intensity training. An increase in the relative pitch area involves physical demands close to the full sized competition. The decrease of the jumping capacity is not a valid method for quantifying the load on a small sided game, even though it seems a good indicator of the player accumulating fatigue.

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Effects of caffeine ingestion on physiological indexes of human neuromuscular fatigue: A systematic review and meta‐analysis

Sun

et al. 2022

Brain and Behavior

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Background: Caffeine is often used as a stimulant during fatigue, but the standard of characteristic physiological indicators of the effect of caffeine on neuromuscular fatigue has not been unified. The purpose of this systematic review and meta-analysis is to summarize current experimental findings on the effects of caffeine on physiological indexes before and after neuromuscular fatigue, identify some characteristic neuromuscular physiological indexes to assess the potential effects of caffeine. Methods:The Preferred Reporting Items for Systematic Reviews and Meta-analyses are followed. We systematically searched PubMed, Google academic, and Web of Science for randomized controlled trials. We searched for studies on caffeine's (i) effects on neuromuscular fatigue and (ii) the influence of physiological indexes changes. Metaanalysis was performed for standardized mean differences (SMD) between caffeine and placebo trials in individual studies. Results:The meta-analysis indicated that caffeine significantly improves voluntary activation (VA) (

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Velocity Loss as an Indicator of Neuromuscular Fatigue during Resistance Training

Cited by 528 publications

References 33 publications

Training Monitoring for Resistance Exercise: Theory and Applications

Training Monitoring for Resistance Exercise: Theory and Applications

Comparison of physical demands in small sided games and competition in football players under 13

Effects of caffeine ingestion on physiological indexes of human neuromuscular fatigue: A systematic review and meta‐analysis

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