Optimal Force-Velocity Profile in Ballistic Push-off: Measurement and Relationship with Performance

2018 ◽  
pp. 97-119 ◽  
Author(s):  
Pierre Samozino
Keyword(s):  
Velocity Profile ◽  
Optimal Force ◽  
Force Velocity

Optimal Force–Velocity Profile in Ballistic Movements—Altius

2012 ◽  
Vol 44 (2) ◽  
pp. 313-322 ◽  
Author(s):  
PIERRE SAMOZINO ◽  
ENRICO REJC ◽  
PIETRO ENRICO DI PRAMPERO ◽  
ALAIN BELLI ◽  
JEAN-BENOÎT MORIN
Keyword(s):  
Velocity Profile ◽  
Optimal Force ◽  
Force Velocity ◽  
Ballistic Movements

Analysis of the Force-Velocity Profile in Female Ballet Dancers

2020 ◽  
Vol 24 (2) ◽  
pp. 59-65
Author(s):  
Juan Antonio Escobar Álvarez ◽  
Pedro Jiménez Reyes ◽  
Miguel Ángel Pérez Sousa ◽  
Filipe Conceição ◽  
Juan Pedro Fuentes García
Keyword(s):  
Velocity Profile ◽  
Relevant Parameter ◽  
Strength And Conditioning ◽  
Dance Performance ◽  
Jump Performance ◽  
Ballet Dancers ◽  
Dance Training ◽  
Optimal Force ◽  
Force Velocity ◽  
The Relationship

Jumping ability has been identified as one of the best predictors of dance performance. The latest findings in strength and conditioning research suggest that the relationship between force and velocity mechanical capabilities, known as the force-velocity profile, is a relevant parameter for the assessment of jumping ability. In addition, previous investigations have suggested the existence of an optimal force-velocity profile for each individual that maximizes jump performance. Given the abundance of ballistic actions in ballet (e.g., jumps and changes of direction), quantification of the mechanical variables of the force-velocity profile could be beneficial for dancers as a guide to specific training regimens that can result in improvement of either maximal force or velocity capabilities. The aim of this study was to compare the mechanical variables of the force-velocity profile during jumping in different company ranks of ballet dancers. Eighty-seven female professional ballet dancers (age: 18.94 ± 1.32 years; height: 164.41 ± 8.20 cm; weight: 56.3 ± 5.86 kg) showed high force deficits (> 40%) or low force deficits (10% to 40%) regardless of their company rank. Our results suggest that dance training mainly develops velocity capabilities, and due to the high number of dramatic elevations that dance performance requires, supplemental individualized force training may be beneficial for dancers. The individualization of training programs addressed to the direction of each individual's imbalance (high force or low force) could help dancers and their teachers to improve jump height and therefore dance performance.

Anodal transcranial direct current stimulation enhances strength training volume but not the force–velocity profile

2020 ◽  
Vol 120 (8) ◽  
pp. 1881-1891 ◽  
Author(s):  
Carlos Alix-Fages ◽  
Amador García-Ramos ◽  
Giancarlo Calderón-Nadal ◽  
David Colomer-Poveda ◽  
Salvador Romero-Arenas ◽  
...  
Keyword(s):  
Velocity Profile ◽  
Strength Training ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Training Volume ◽  
Direct Current Stimulation ◽  
Force Velocity

scholarly journals Determining strength training needs using the force-velocity profile of elite female handball and volleyball players

2020 ◽  
pp. 174795412096404
Author(s):  
Leonidas Petridis ◽  
Gergely Pálinkás ◽  
Zsófia Tróznai ◽  
Bettina Béres ◽  
Katinka Utczás
Keyword(s):  
Velocity Profile ◽  
Strength Training ◽  
Body Mass ◽  
Female Athletes ◽  
Vertical Jump ◽  
Body Height ◽  
Maximum Velocity ◽  
Total Force ◽  
Volleyball Players ◽  
Force Velocity

The aim of this study was to assess the vertical jump performance and the force-velocity profile of elite female handball and volleyball players. Forty-one female athletes were measured, 28 handball players (age: 24.0 ± 3.6 years, body height: 1.75 ± 0.05 m, body mass: 69.0 ± 7.3 kg) and 13 volleyball players (age: 24.1 ± 5.2 years, body height: 1.83 ± 0.07 m and body mass: 74.9 ± 7.9 kg). All players performed unloaded and loaded countermovement jumps (CMJ) on a force platform. The theoretical maximal force ( F0), the theoretical maximum velocity ( v0), the theoretical maximal power ( Pmax), the slope of the F-v relationship ( Sfv) and the force-velocity imbalance ( FVimb) were calculated. Mean value of vertical jump height was 0.33 ± 0.03m, with no difference between handball and volleyball players. Mean values of F0, v0, Pmax, Sfv and FVimb for all players were 31.2 ± 2.6 N/kg, 3.10 ± 0.50 m·s−1, 24.2 ± 3.2 w/kg, -10.32 ± 2.09 Ns/m/kg and 28.1 ± 13.3% respectively. Two players had a low magnitude velocity-deficit, whereas most of the players exhibited a low to high force-deficit. A strong correlation was found between the ratio of measured to optimal F-v slope with the change in the proportion of net force to total force during unloaded and loaded conditions. The findings suggest that it would be beneficial for these athletes to first decrease their force deficit through mainly maximal strength training before implementing training to further maximize power output. Establishment of the F-v profile could be a useful diagnostic tool for coaches to optimize strength training and to design training intervention based on the individual need of each athlete.

Influence of Resisted Sled-Pull Training on the Sprint Force-Velocity Profile of Male High-School Athletes

2020 ◽  
Vol 34 (10) ◽  
pp. 2751-2759
Author(s):  
Micheál J. Cahill ◽  
Jon L. Oliver ◽  
John B. Cronin ◽  
Kenneth Clark ◽  
Matt R. Cross ◽  
...  
Keyword(s):  
High School ◽  
Velocity Profile ◽  
High School Athletes ◽  
Male High School ◽  
Force Velocity

Association of the Vertical and Horizontal Force-Velocity Profile and Acceleration With Change of Direction Ability in Various Sports

2020 ◽  
pp. 1-21
Author(s):  
Andrés Baena-Raya ◽  
Alberto Soriano-Maldonado ◽  
Filipe Conceição ◽  
Pedro Jiménez-Reyes ◽  
Manuel A. Rodríguez-Pérez
Keyword(s):  
Velocity Profile ◽  
Horizontal Force ◽  
Change Of Direction ◽  
Force Velocity

Effect of countermovement on power–force–velocity profile

2014 ◽  
Vol 114 (11) ◽  
pp. 2281-2288 ◽  
Author(s):  
Pedro Jiménez-Reyes ◽  
Pierre Samozino ◽  
Víctor Cuadrado-Peñafiel ◽  
Filipe Conceição ◽  
Juan José González-Badillo ◽  
...  
Keyword(s):  
Velocity Profile ◽  
Force Velocity

scholarly journals Enhancing the Force-Velocity Profile of Athletes Using Weightlifting Derivatives

2017 ◽  
Vol 39 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Timothy J. Suchomel ◽  
Paul Comfort ◽  
Jason P. Lake
Keyword(s):  
Velocity Profile ◽  
Force Velocity

Lower Limb Force, Velocity, Power Capabilities during Leg Press and Squat Movements

2017 ◽  
Vol 38 (14) ◽  
pp. 1083-1089 ◽  
Author(s):  
Johnny Padulo ◽  
Gian Migliaccio ◽  
Luca Ardigò ◽  
Bruno Leban ◽  
Marco Cosso ◽  
...  
Keyword(s):  
Velocity Profile ◽  
Effect Size ◽  
Power Output ◽  
Lower Limb ◽  
Maximal Power ◽  
Maximal Power Output ◽  
Optimal Velocity ◽  
Leg Press ◽  
Maximal Force ◽  
Force Velocity

AbstractThe aim was to compare lower-limb power, force, and velocity capabilities between squat and leg press movements. Ten healthy sportsmen performed ballistic lower-limb push-offs against 5-to-12 different loads during both the squat and leg press. Individual linear force-velocity and polynomial power-velocity relationships were determined for both movements from push-off mean force and velocity measured continuously with a pressure sensor and linear encoder. Maximal power output, theoretical maximal force and velocity, force-velocity profile and optimal velocity were computed. During the squat, maximal power output (17.7±3.59 vs. 10.9±1.39 W·kg−1), theoretical maximal velocity (1.66±0.29 vs. 0.88±0.18 m·s−1), optimal velocity (0.839±0.144 vs. 0.465±0.107 m·s−1), and force-velocity profile (−27.2±8.5 vs. −64.3±29.5 N·s·m−1·kg−1) values were significantly higher than during the leg press (p=0.000, effect size=1.72–3.23), whereas theoretical maximal force values (43.1±8.6 vs. 51.9±14.0 N·kg−1, p=0.034, effect size=0.75) were significantly lower. The mechanical capabilities of the lower-limb extensors were different in the squat compared with the leg press with higher maximal power due to much higher velocity capabilities (e.g. ability to produce force at high velocities) even if moderately lower maximal force qualities.

scholarly journals Relationships between Strength and Step Frequency with Fatigue Index in Repeated Sprint Ability

2021 ◽  
Vol 19 (1) ◽  
pp. 196
Author(s):  
Pablo González-Frutos ◽  
Millán Aguilar-Navarro ◽  
Esther Morencos ◽  
Javier Mallo ◽  
Santiago Veiga
Keyword(s):  
Velocity Profile ◽  
Step Frequency ◽  
Sprint Time ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Hockey Players ◽  
Force Velocity ◽  
Speed Training ◽  
Physical Capacities ◽  
Sprint Ability

Force−velocity profile (FVP) and repeated-sprint ability (RSA) tests are indicators of physical capacities in most team sport players. The purpose of this study was to examine the stride kinematics during a repeated-sprint ability (RSA) test and to analyze the relationship between Bosco’s force−velocity profile (FVP) and RSA performance in elite female field hockey players. Thirteen elite-female players performed both RSA (six 30 m maximal sprints) and jumping (CMJ weighted and body weight) tests. Sprinting time fatigue indexes during a 30 m RSA test were correlated with step frequency fatigue indexes (r > 0.7; p < 0.01). CMJ50 showed a large relationship with sprint time fatigue indexes. FV50 showed a very large relationship with sprint time fatigue indexes (r > 0.7; p < 0.01), and a large relationship with the step frequency fatigue indexes (r > 0.5; p < 0.05). This study highlighted two possible ways to improve fatigue indexes in RSA, with the aim of maximizing the distances covered at high-intensities during the matches: (a) strength training and (b) focusing on step frequency during speed training.

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