scholarly journals La altura del salto en contramovimiento como instrumento de control de la fatiga neuromuscular. Revisión sistemática (Counter-movement Jump height as a means to monitor neuromuscular fatigue. Systematic Review)

Retos ◽  
2019 ◽  
pp. 820-826
Author(s):  
Sergio Miras Moreno
Keyword(s):  
Control Method ◽  
Vertical Jump ◽  
Training Session ◽  
Neuromuscular Fatigue ◽  
Jump Height ◽  
Counter Movement Jump ◽  
Revisión Sistemática ◽  
Measurement Protocol ◽  
Metabolic Variables ◽  
The Many

Las múltiples ventajas que aporta un buen control de la carga y la fatiga tanto en deportes de equipo como individuales son conocidas, aunque es importante determinar si un mismo método de control puede ser utilizado para cualquier tipo de deporte, ya que cada uno posee unas demandas metabólicas y neuromusculares diferentes. El objetivo de esta revisión fue recopilar conocimiento acerca de la fiabilidad de la altura del salto en contramovimiento (CMJ, por sus siglas en inglés) como instrumento de control de la carga y la fatiga neuromuscular en atletas de diferentes deportes. El objetivo complementario fue relacionar el CMJ con otras variables metabólicas sensibles a la fatiga neuromuscular. Dos bases de datos (PubMed y WebOfScience) fueron utilizadas para la búsqueda de un total de 1051 artículos científicos. La calidad metodológica para cada artículo se llevó a cabo mediante la escala de la base de datos sobre Fisioterapia Basada en la Evidencia (PEDro). Un total de 12 artículos siguieron los criterios de inclusión y exclusión. Se encontraron numerosas correlaciones con otras variables metabólicas como el nivel de cortisol en saliva, el amonio y lactato en sangre. La altura del CMJ es una herramienta fiable para medir tanto como la fatiga neuromuscular a lo largo de una temporada como para medir la fatiga aguda después de una sesión de entrenamiento, no obstante, es recomendable establecer un protocolo adecuado de medición y que se relacione con otros instrumentos o parámetros metabólicos para aumentar su fiabilidad dentro de los distintos deportes.Abstract: The many advantages of good load and fatigue control in team and individual sports are known, although it is important to determine if the same control method can be used for any type of sport, for each one has different metabolic and neuromuscular demands. To analyze the reliability of counter-movement jump height (CMJ) as an instrument for load and neuromuscular fatigue control in athletes of different sports. The secondary aim was to relate vertical jump height (VJH) with other metabolic variables sensitive to neuromuscular fatigue. Two databases (PubMed and Web Of Science) were used to search a total of 1051 scientific journals. The methodological quality for each article was carried out using the scale of the database on Evidence-Based Physiotherapy (PEDro). A total of 12 papers matched the inclusion criteria. Numerous correlations were found with other metabolic variables such as the level of cortisol in saliva, ammonium and lactate in the blood. The height of the CMJ is a reliable tool to measure neuromuscular fatigue over a season and acute fatigue after a training session; however, it is advisable to establish an adequate measurement protocol and compare it with other instruments to increase their reliability within different sports.

scholarly journals The Effects of a Maximal Power Training Cycle on the Strength, Maximum Power, Vertical Jump Height and Acceleration of High-Level 400-Meter Hurdlers

2013 ◽  
Vol 36 (1) ◽  
pp. 119-126 ◽  
Author(s):  
Carlos Balsalobre-Fernández ◽  
Carlos Mª Tejero-González ◽  
Juan del Campo-Vecino ◽  
Dionisio Alonso-Curiel
Keyword(s):  
Training Program ◽  
Vertical Jump ◽  
Training Session ◽  
Maximum Power ◽  
Jump Height ◽  
Power Training ◽  
Vertical Jump Height ◽  
Training Cycle ◽  
Power Load ◽  
High Level

The aim of this study was to determine the effects of a power training cycle on maximum strength, maximum power, vertical jump height and acceleration in seven high-level 400-meter hurdlers subjected to a specific training program twice a week for 10 weeks. Each training session consisted of five sets of eight jump-squats with the load at which each athlete produced his maximum power. The repetition maximum in the half squat position (RM), maximum power in the jump-squat (W), a squat jump (SJ), countermovement jump (CSJ), and a 30-meter sprint from a standing position were measured before and after the training program using an accelerometer, an infra-red platform and photocells. The results indicated the following statistically significant improvements: a 7.9% increase in RM (Z=-2.03, p=0.021, δc=0.39), a 2.3% improvement in SJ (Z=-1.69, p=0.045, δc=0.29), a 1.43% decrease in the 30-meter sprint (Z=-1.70, p=0.044, δc=0.12), and, where maximum power was produced, a change in the RM percentage from 56 to 62% (Z=-1.75, p=0.039, δc=0.54). As such, it can be concluded that strength training with a maximum power load is an effective means of increasing strength and acceleration in high-level hurdlers.

scholarly journals EFFECTS OF DIFFERENT HALF-TIME RE-WARM UP ON VERTICAL JUMP DURING SIMULATED BASKETBALL GAME

2018 ◽  
Vol 2 (109) ◽  
pp. 35-40
Author(s):  
Rėjus Pociūnas ◽  
Vytautas Pliauga ◽  
Inga Lukonaitienė ◽  
Dominykas Bartusevičius ◽  
Tomas Urbonavičius ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Jump Height ◽  
College Level ◽  
Half Time ◽  
Warm Up ◽  
Vertical Jump Height ◽  
Basketball Game ◽  
Counter Movement Jump ◽  
Different Types ◽  
Before And After

Background. This study investigated the acute effects of different half–time re–warm ups on vertical jump height during simulated basketball games. Methods. Ten college level males (age (mean ± standard deviation (SD)), 22.0 ± 5.0 years; weight, 86.0 ± 5.5 kg; height, 193 ± 1 cm.) were divided into two teams, who played three simulated basketball games with three different type half-time re-warm ups: aerobic; aerobic + post-activation potentiation exercises and aerobic + post-activation potentiation + stabilization exercises. Counter-movement jump was measured before and during the simulated basketball game at seven time points: before and after warm up, after the 1 st, the 2 nd quarters, after re-warm up and after the 3 rd and the 4 th quarters. Simulated basketball games were separated at least by 72 hours. Results. The non-significant decrease in Counter-movement jump height during simulated basketball games was observed after executing all three different types of half-time re-warm ups. However, Counter-movement jump significantly (p < .05) decreased during simulated basketball game only in aerobic type half-time re-warm up game. Conclusion. During simulated basketball game, the least decrease in Counter-movement jump height was observed after aerobic type re-warm up with post-activation potentiation exercises performed at half-time.

scholarly journals AGREEEMENT BETWEEN MEASUREMENT OF JUMP HEIGHT IN DIFFERENT VERTICAL JUMP TESTS EXECUTED BY YOUNG FOOTBALL PLAYERS

2020 ◽  
Vol 2 (2020) ◽  
pp. 51-63
Author(s):  
Marin Gadev ◽  
◽  
Petar Peev ◽  
Oleg Hristov ◽  
◽  
...  
Keyword(s):  
Vertical Jump ◽  
Energy System ◽  
Lower Limbs ◽  
Football Players ◽  
Systematic Bias ◽  
Jump Height ◽  
Explosive Power ◽  
Vertical Jump Height ◽  
Counter Movement Jump ◽  
Anaerobic Energy

ABSTRACT Football is an intermittent sport with a great number of short and explosive actions. These characteristics of the game require a good level of anaerobic power. The main field tests used as indicators of the development of the anaerobic energy system were the jumps in the vertical plane. The same tests also measured the strength of the lower limbs. We presume that the explosive power of the lower limbs characterizes the development of the alactic anaerobic energy system and strength capacity at the same time. In that case the explosive power of the lower limbs was an important component of the conditioning and strength training of football players. There was a great variety of methods and devices which registered vertical jump height. From this point of view, we wanted to add our study to the research work in the specialized literature. The purpose of this study was to analyze the differences of the jump height measured via two devices. We used the following methods of research: accelerometry, chronometry and statistical analysis. We studied the vertical jump height of 32 football players of the Youth Academy of PFC “Levski”– Sofi a at the age of 13,4. In the research the participants performed three jump tests (squat jump [SJ], counter movement jump [CMJ] and counter movement jump with arm swing [CMJA]) as the jump height was measured via accelerometer and Infrared platform. The results from these two devices were compared via Bland Altman plot and calculation of Intraclass correlation coefficients [ICC]. The results of ICC between the two devices showed very strong correlation of the results for the three tests (SJ (R= .91), CMJ (R= .92) and CMJA (R= .87)). The results of the ANOVA showed statistical difference between the measured jump heights (p< .05 for all test, systematic bias was equal to: SJ=15.6; CMJ=15.2; CMJA= 19.5 and effect size (η2) was large SJ= .65; CMJ= .69; CMJA= .65) for the three different types of jump. Conclusions:1) Both of the devices showed good consistency of the collected results; 2) The data collected from the two devices showed significant difference of the jump heights.

Physical and performance characteristics related to starter status, position, and division in Japanese collegiate American-football players

2021 ◽  
pp. 1-8
Author(s):  
Junta Iguchi ◽  
Minoru Matsunami ◽  
Tatsuya Hojo ◽  
Yoshihiko Fujisawa ◽  
Kenji Kuzuhara ◽  
...  
Keyword(s):  
Performance Test ◽  
Vertical Jump ◽  
American Football ◽  
Football Players ◽  
Jump Height ◽  
Test Results ◽  
Repetition Maximum ◽  
Vertical Jump Height ◽  
Division 1 ◽  
And Performance

BACKGROUND: Few studies have investigated the variations in body composition and performance in Japanese collegiate American-football players. OBJECTIVE: To clarify what characterizes competitors at the highest levels – in the top division or on the starting lineup – we compared players’ body compositions and performance test results. METHODS: This study included 172 players. Each player’s body composition and performance (one-repetition maximum bench press, one-repetition maximum back squat, and vertical jump height) were measured; power was estimated from vertical jump height and body weight. Players were compared according to status (starter vs. non-starter), position (skill vs. linemen), and division (1 vs. 2). Regression analysis was performed to determine characteristics for being a starter. RESULTS: Players in higher divisions and who were starters were stronger and had more power, greater body size, and better performance test results. Players in skill positions were relatively stronger than those in linemen positions. Vertical jump height was a significant predictor of being a starter in Division 1. CONCLUSION: Power and vertical jump may be a deciding factor for playing as a starter or in a higher division.

Effects of plyometric jump training in female soccer player’s vertical jump height: A systematic review with meta-analysis

2020 ◽  
Vol 38 (13) ◽  
pp. 1475-1487 ◽  
Author(s):  
Rodrigo Ramirez-Campillo ◽  
Javier Sanchez-Sanchez ◽  
Blanca Romero-Moraleda ◽  
Javier Yanci ◽  
Antonio García-Hermoso ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Vertical Jump ◽  
Jump Height ◽  
Jump Training ◽  
Vertical Jump Height

Lower-Extremity Biomechanics and Maintenance of Vertical-Jump Height During Prolonged Intermittent Exercise

2014 ◽  
Vol 23 (4) ◽  
pp. 319-329
Author(s):  
Randy J. Schmitz ◽  
John C. Cone ◽  
Timothy J. Copple ◽  
Robert A. Henson ◽  
Sandra J. Shultz
Keyword(s):  
Lower Extremity ◽  
Outcome Measures ◽  
Principal Components ◽  
Intermittent Exercise ◽  
Vertical Jump ◽  
The Body ◽  
Rating Of Perceived Exertion ◽  
Jump Height ◽  
Lower Extremity Biomechanics ◽  
Biomechanical Factors

Context:Potential biomechanical compensations allowing for maintenance of maximal explosive performance during prolonged intermittent exercise, with respect to the corresponding rise in injury rates during the later stages of exercise or competition, are relatively unknown.Objective:To identify lower-extremity countermovement-jump (CMJ) biomechanical factors using a principal-components approach and then examine how these factors changed during a 90-min intermittent-exercise protocol (IEP) while maintaining maximal jump height.Design:Mixed-model design.Setting:Laboratory.Participants:Fifty-nine intermittent-sport athletes (30 male, 29 female) participated in experimental and control conditions.Interventions:Before and after a dynamic warm-up and every 15 min during the 1st and 2nd halves of an individually prescribed 90-min IEP, participants were assessed on rating of perceived exertion, sprint/cut speed, and 3-dimensional CMJ biomechanics (experimental). On a separate day, the same measures were obtained every 15 min during 90 min of quiet rest (control).Main Outcome Measures:Univariate piecewise growth models analyzed progressive changes in CMJ performance and biomechanical factors extracted from a principal-components analysis of the individual biomechanical dependent variables.Results:While CMJ height was maintained during the 1st and 2nd halves, the body descended less and knee kinetic and energetic magnitudes decreased as the IEP progressed.Conclusions:The results indicate that vertical-jump performance is maintained along with progressive biomechanical changes commonly associated with decreased performance. A better understanding of lower-extremity biomechanics during explosive actions in response to IEP allows us to further develop and individualize performance training programs.

scholarly journals Vertical jump fatigue does not affect intersegmental coordination and segmental contribution

2014 ◽  
Vol 20 (3) ◽  
pp. 303-309 ◽  
Author(s):  
Gleber Pereira ◽  
Paulo B. de Freitas ◽  
Jose A. Barela ◽  
Carlos Ugrinowitsch ◽  
André L. F. Rodacki ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Coordination Pattern ◽  
Jump Height ◽  
Movement Duration ◽  
Intersegmental Coordination ◽  
Vertical Jump Height ◽  
Movement Synergy ◽  
Vertical Jumps

The aim of this study was to describe the intersegmental coordination and segmental contribution during intermittent vertical jumps performed until fatigue. Seven male visited the laboratory on two occasions: 1) the maximum vertical jump height was determined followed by vertical jumps habituation; 2) participants performed intermittent countermovement jumps until fatigue. Kinematic and kinetic variables were recorded. The overall reduction in vertical jump height was 5,5%, while the movement duration increased 10% during the test. The thigh segment angle at movement reversal significantly increased as the exercise progressed. Non-significant effect of fatigue on movement synergy was found for the intersegmental coordination pattern. More than 90% of the intersegmental coordination was explained by one coordination pattern. Thigh rotation contributed the most to the intersegmental coordination pattern, with the trunk second and the shank the least. Therefore, one intersegmental coordination pattern is followed throughout the vertical jumps until fatigue and thigh rotation contributes the most to jump height.

scholarly journals Effects of Kettlebell Swing vs. Explosive Deadlift Training on Strength and Power

2017 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Matthew R. Maulit ◽  
David C. Archer ◽  
Whitney D. Leyva ◽  
Cameron N. Munger ◽  
Megan A. Wong ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Jump Height ◽  
Strength And Conditioning ◽  
Vertical Jump Height ◽  
Jump Power

Background: Recent research has compared explosive deadlift to kettlebell training observing their effects on strength. The kettlebell swing is a popular practical exercise as it shares share a hip hinge movement with the explosive deadlift, but the two have not been compared. Objectives: The purpose of this study was to compare the effects of kettlebell swing vs. explosive deadlift training on strength and power. Methods: Thirty-one recreationally resistance-trained men (age = 23.1 ± 2.3 years, height = 175.5 ± 6.6 cm, mass = 83.9 ± 13.8 kg, 1RM deadlift = 159.9 ± 31.7 kg) were randomly assigned to one of two groups [kettlebell swing group (KBG) n = 15, or explosive deadlift group (EDLG) n = 16]. Vertical jump height, isometric mid-thigh pull (MTP), and 1RM deadlift were measured pre and post training. Both groups trained twice per week for 4 weeks. Volume and load were increased after the first 2 weeks of training. Results: A 2 (time) x 2 (group) mixed factor ANOVA revealed a significant (P<0.05) increase in deadlift 1RM (pre: 159.9 ± 31.7 kg, post: 168.9 ± 31.8 kg) and vertical jump height (pre: 56.6 ± 9.9 cm, post: 57.9 ± 9.7 cm) for both groups, but were not significantly different between groups. There were no significant changes in MTP. Conclusions: Strength and conditioning professionals may use both kettlebell swings and explosive deadlifts to increase deadlift strength and vertical jump power.

Sign in / Sign up

Export Citation Format

Share Document