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.

scholarly journals Relationship between Repeated Sprint Ability and Aerobic Capacity in Professional Soccer Players

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Rhys M. Jones ◽  
Christian C. Cook ◽  
Liam P. Kilduff ◽  
Zoran Milanović ◽  
Nic James ◽  
...  
Keyword(s):  
Aerobic Capacity ◽  
Significant Negative Correlation ◽  
Soccer Players ◽  
Active Recovery ◽  
Maximal Aerobic Capacity ◽  
Sprint Time ◽  
Repeated Sprint Ability ◽  
Professional Soccer ◽  
Repeated Sprint ◽  
Sprint Ability

Aim. The aim of the present study was to investigate the relationship between maximal aerobic capacity () and repeated sprint ability (RSA) in a group of professional soccer players.Methods. Forty-one professional soccer players (age  yrs, height  cm, weight  kg) were required to perform tests to assess RSA and on two separate days with at least 48 hr rest between testing sessions. Each player performed a treadmill test to determine their and a test for RSA involving the players completing  m sprints (turn after 20 m) with 20 s active recovery between each sprint.Results. There was a significant negative correlation between body mass normalised and mean sprint time () (; ) and total sprint time () (, ).Conclusion. Results of the current study indicate that is one important factor aiding soccer players in the recovery from repeated sprint type activities.

scholarly journals Adaptações nas capacidades físicas de atletas de futsal da categoria sub 18 no decorrer de uma temporada competitiva

2016 ◽  
Vol 18 (1) ◽  
pp. 50 ◽  
Author(s):  
Fernando Matzenbacher ◽  
Bruno Natale Pasquarelli ◽  
Felipe Nunes Rabelo ◽  
Antônio Carlos Dourado ◽  
Julia Zoccolaro Durigan ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Fatigue Index ◽  
Ability Test ◽  
Physiological Variables ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Jump Test ◽  
Physical Capacities ◽  
Vertical Jumps ◽  
Sprint Ability

DOI: http://dx.doi.org/10.5007/1980-0037.2016v18n1p50 The aim of this study was to verify and to analyze adaptations on physical and physiological variables of futsal athletes during the pre-competitive and competitive phases of a training macrocycle. The sample was composed of nine Under-18 futsal athletes who performed the following tests: vertical jump, 10 and 30-meter linear sprint, repeated sprint ability test, Yo-Yo intermittent recovery test level 1 and VO2máx. Based on the qualitative analysis of the change magnitude, it was possible to verify adaptations from training for the vertical jump test (certainly positive), 10-meter linear sprint (likely decrease), 30-meter linear sprint (irrelevant), repeated sprint ability test for best sprint (irrelevant), mean of sprints (likely decrease), fatigue index (likely decrease), YYIRI (likely increase), VO2máx (likely decrease) and speed of VO2máx (likely increase). Thus, it was possible to verify that training-induced adaptations were positive since athletes improved their performance for the most control tests for each physical capacities of futsal (vertical jumps, 10-meter linear sprint, and repeated agility sprint test for the mean of sprints and fatigue index and aerobic resistance. Therefore, data have shown that athletes improved their physical performance considering the characteristics of futsal during training throughout a macrocycle.

scholarly journals Reliability of specific on-ice repeated-sprint ability test for ice-hockey players

Acta Gymnica ◽  
2014 ◽  
Vol 44 (2) ◽  
pp. 69-75 ◽  
Author(s):  
Karel Hulka ◽  
Jan Belka ◽  
Roman Cuberek ◽  
Ondrej Schneider
Keyword(s):  
Ice Hockey ◽  
Ability Test ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Hockey Players ◽  
Sprint Ability

scholarly journals Effects of combined plyometric and speed training on change of direction, linear speed, and repeated sprint ability in young soccer players

Kinesiology ◽  
2020 ◽  
Vol 52 (1) ◽  
pp. 85-93
Author(s):  
Mehdi Kargarfard ◽  
Shadi Tajvand ◽  
Alireza Rabbani ◽  
Filipe Manuel Clemente ◽  
Farzad Jalilvand
Keyword(s):  
Soccer Players ◽  
Control Group ◽  
Linear Speed ◽  
Change Of Direction ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Group I ◽  
Soccer Training ◽  
Speed Training ◽  
Sprint Ability

It has been well established that plyometric and speed training have positive impacts on fitness parameters in soccer players. The aim of this study was to compare short-term effects of a combined plyometric and speed training implemented on the same or separate days of a week on change of direction (COD), linear speed (LS), and repeated sprint ability (RSA) in young soccer players. Twenty-four male players from the same U19 soccer team were distributed into one control group (CG; n=7, soccer training only) and two experimental groups performing plyometric and speed exercises on the same (CDG; n=8) or separate days (CWG; n=9) during a 6-week preparation period. Very likely moderate within-group COD improvements were observed in the CDG (ES -0.94 [-1.47 to -0.41]) and CWG (ES -0.97 [-1.52 to -0.42]) groups. Possibly small within-group RSA improvements were also observed in the CWG (ES -0.24[-0.64 to 0.16]) and CDG (ES -0.31 [-0.79 to 0.17]) groups. CWG and CDG groups showed possibly small (ES -0.28 [-0.62 to 0.06]) and very likely moderate (ES -0.80 [-1.28 to -0.32]) within-group LS improvements following the intervention, respectively. In between group analysis, a likely moderate (ES 0.71 [0.03 to 1.39]) greater LS improvement was observed in the CDG group than in the CWG group. I t is suggested to supplement normal soccer training with combined plyometric and speed exercises to improve COD, LS, and RSA performance and to implement these exercises in the same session to improve LS with a greater effect.

scholarly journals Pre- and mid-season repeated sprint ability of soccer referees from the first and second divisions

2019 ◽  
Vol 15 (1) ◽  
pp. 82-90
Author(s):  
Yoav Meckel ◽  
Kiril Balikin ◽  
Alon Eliakim
Keyword(s):  
Training Program ◽  
Professional Status ◽  
Performance Indices ◽  
Sprint Time ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Fitness Tests ◽  
And Performance ◽  
Sprint Ability

The main aim of the study was to investigate the differences in repeated sprint ability of first- compared to second-division referees at the beginning and in the middle of the soccer season. Twenty-seven main and 51 assistant referees, from the first (age 36.2 ± 5.3) and the second (age 28.8 ± 3.9) soccer divisions, performed two fitness tests—at the beginning and at mid-season, consisting of a repeated sprint test of 6 × 40 m and 5 × 30 m sprints for the referees and assistant referees, respectively. While no differences were found among the first division’s main referees, significant improvement ( p < .05) was found among the second division’s main referees at mid-season compared to the beginning of the season in ideal sprint time (31.97 ± 1.5 vs. 32.47 ± 1.3 s) and total sprint time (32.62 ± 1.4 vs. 33.10 ± 1.1 s), respectively. The main referees' ideal sprint time and total sprint time were significantly faster ( p < .05) in the second compared to the first division, at pre-season and at mid-season. Significant correlations were found between age and ideal sprint time ( r = .63) and age and total sprint time ( r = .66) among the main referees, but not between age and performance indices among the assistant referees. The findings demonstrated a superiority of the second over the first division's referees in anaerobic capabilities, suggesting that training program should be specific for each division. It may also indicate that variables other than physical capabilities determine referees' professional status and referee's advancement from second to the first division.

Effects of Resistance Training and Combined Training Program on Repeated Sprint Ability in Futsal Players

2018 ◽  
Vol 39 (07) ◽  
pp. 517-526 ◽  
Author(s):  
Julio Torres-Torrelo ◽  
David Rodríguez-Rosell ◽  
Ricardo Mora-Custodio ◽  
Fernando Pareja-Blanco ◽  
Juan Yañez-García ◽  
...  
Keyword(s):  
Resistance Training ◽  
Control Group ◽  
Strength Performance ◽  
Sprint Time ◽  
Combined Training ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Low Load ◽  
Low Volume ◽  
Sprint Ability

AbstractThe purpose of this study was to compare the effects of 6 weeks resistance training (RT) with combined RT and loaded change of direction (CD) exercise on muscle strength and repeated sprint ability (RSA) in futsal players. Thirty-four players (age: 23.7±4.1 years; height: 1.77±0.06 m; body mass: 74.1±8.2 kg) were randomly assigned into three groups: full squat group (SG, n=12), combined full squat and CD group (S+CDG, n=12), and control group (CG, n=10). The RT for SG consisted of full squat with low-load (~45–60% 1RM) and low-volume (2-3 sets and 4-6 repetitions), whereas the S+CDG performed the same RT program combined with loaded CD (2-5 sets of 10 s). Estimated one-repetition maximum (1RMest) and variables derived from RSA test including mean sprint time (RSAmean), best sprint time (RSAbest), percent sprint decrement (Sdec), mean ground contact time (GCTmean) and mean step length (SL) were selected as testing variables. Changes in sprint time and GCT in each sprint were also analysed. Both experimental groups showed significant (P<0.05-0.001) improvements for 1RMest, RSAbest and first and second sprint time. In addition, S+CDG achieved significant (P<0.05-0.001) improvements in RSAmean, sprint time (from fifth to ninth sprint) and GCT (from third to eighth sprint). These results indicate that only 6 weeks of low-load and low-volume RT combined with CD in addition to routine futsal training is enough to improve RSA and strength performance simultaneously in futsal players.

The Relationship Between Repeated Sprint Performances and 50m and 100m Swimming Degrees of Swimmers

2021 ◽  
Vol 15 (9) ◽  
pp. 3076-3079
Author(s):  
Ayşegül Yapici Öksüzoğlu ◽  
Engin Güneş Atabaş
Keyword(s):  
Short Distance ◽  
Swimming Performance ◽  
Difficulty Level ◽  
Swimming Time ◽  
Sprint Time ◽  
Repeated Sprint Ability ◽  
Significant Relationships ◽  
Repeated Sprint ◽  
The Relationship ◽  
Sprint Ability

The aim of this study is to investigate the relationship between short distance swimming performance and repeated sprint ability in swimmers. 12 male swimmers between the ages of 14-18 from Denizli Pamukkale University Swimming Sports Club Performance team voluntarily participated at this study. Freestyle swimming time of the subjects was measured by using Casio stopwatch. 10x15-m, 50-m and 100-m freestyle swimming degrees of swimmers were recorded. The ideal sprint time (IS), the total sprint time (TS) and the performance decrement (PD) were determined after repeated sprint test (RST). Lactate levels were recorded at the end of each test. The Borg scale was used to determine the perceived difficulty level. For the statistical analysis Pearson’s correlation was used to determine the correlations between 50- m and100-m freestyle swimming time and swimming times obtained at the end of RST (IS, TS, PD). Significant relationships were found between the 50-m and 100-m swimming performance (p<0.01). Significant correlations were found between the IS and the TS and the 50-m swim results (p<0.01) and also the 100-m swim results (p<0.05). Significant correlations were found between the 50-m lactate values and 100-m lactate values (p<0.05). Significant relationships were found between 10x15-m RST lactate values and 50-m lactate values (p<0.05). Moreover, strong relations were found between the 10x15-m RST lactate values and 100-m lactate values (p<0.01). In conclusion, this study has shown that repeated sprint ability as well as higher anaerobic capability as reflected by the short distance. Keywords: swimming, repeated sprint ability, short distance swimming performance

Repeated-Sprint Ability and Team Selection in Australian Football League Players

2014 ◽  
Vol 9 (1) ◽  
pp. 161-165 ◽  
Author(s):  
Peter Le Rossignol ◽  
Tim J. Gabbett ◽  
Dan Comerford ◽  
Warren R. Stanton
Keyword(s):  
Regression Analysis ◽  
Maximum Velocity ◽  
Sprint Performance ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Australian Football League ◽  
Australian Football ◽  
Physical Capacities ◽  
The Relationship ◽  
Sprint Ability

Purpose:To investigate the relationship between selected physical capacities and repeated-sprint performance of Australian Football League (AFL) players and to determine which physical capacities contributed to being selected for the first competition game.Methods:Sum of skinfolds, 40-m sprint (with 10-, 20-, 30-, and 40-m splits), repeated-sprint ability (6 × 30-m sprints), and 3-km-run time were measured during the preseason in 20 AFL players. The physical qualities of players selected to play the first match of the season and those not selected were compared. Pearson correlation coefficients were used to determine the relationship among variables, and a regression analysis identified variables significantly related to repeated-sprint performance.Results:In the regression analysis, maximum velocity was the best predictor of repeated-sprint time, with 3-km-run time also contributing significantly to the predictive model. Sum of skinfolds was significantly correlated with 10-m (r = .61, P < .01) and 30-m (r = .53, P < .05) sprint times. A 2.6% ± 2.1% difference in repeated-sprint time (P < .05, ES = 0.88 ± 0.72) was observed between those selected (25.26 ± 0.55 s) and not selected (25.82 ± 0.80 s) for the first game of the season.Conclusions:The findings indicate that maximum-velocity training using intervals of 30–40 m may contribute more to improving repeated-sprint performance in AFL players than short 10- to 20-m intervals from standing starts. Further research is warranted to establish the relative importance of endurance training for improving repeated-sprint performance in AFL football.

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