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Repeated sprint ability

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https://www.readbyqxmd.com/read/27930743/effects-of-four-weeks-of-%C3%AE-alanine-supplementation-on-repeated-sprint-ability-in-water-polo-players
#1
Gabriel Motta Pinheiro Brisola, Guilherme Giannini Artioli, Marcelo Papoti, Alessandro Moura Zagatto
The purpose of this study was to investigate the effect of four weeks of β-alanine supplementation on repeated sprint ability in water polo players. Twenty-two male water polo players participated in the study, divided randomly into two homogeneous groups (placebo and β-alanine groups). The study design was double-blind, parallel and placebo controlled. Before and after the supplementation period (28 days), the athletes performed two specific repeated sprint ability tests interspaced by a 30-minute swimming test...
2016: PloS One
https://www.readbyqxmd.com/read/27896682/methods-of-power-force-velocity-profiling-during-sprint-running-a-narrative-review
#2
REVIEW
Matt R Cross, Matt Brughelli, Pierre Samozino, Jean-Benoit Morin
The ability of the human body to generate maximal power is linked to a host of performance outcomes and sporting success. Power-force-velocity relationships characterize limits of the neuromuscular system to produce power, and their measurement has been a common topic in research for the past century. Unfortunately, the narrative of the available literature is complex, with development occurring across a variety of methods and technology. This review focuses on the different equipment and methods used to determine mechanical characteristics of maximal exertion human sprinting...
November 28, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27893482/effects-of-sprint-training-with-and-without-weighted-vest-on-speed-and-repeated-sprint-ability-in-male-soccer-players
#3
Ezequiel Rey, Alexis Padrón-Cabo, Diego Fernández-Penedo
The purpose of this study was to assess the effect resisted sprint training using weighted vests (WV) compared with unresisted sprint training (US) on physical fitness (countermovement jump, 10 m sprint, 30 m sprint and repeated sprint ability (RSA)) in amateur male soccer players. 19 soccer players (age: 23.7±4.5 years; height: 178.3±5.8 cm; body mass: 72.9±5.2 kg) were randomly assigned to a WV (n= 10) or a US (n= 9) group. The intervention program had to be carried out 2 times a week over 6 weeks. The only difference between the two interventions was that the WV group performed all the sprints with an additional weight of 18...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27849114/effects-of-in-season-short-term-aerobic-and-high-intensity-interval-training-program-on-repeated-sprint-ability-and-jump-performance-in-handball-players
#4
Souhail Hermassi, Jørgen Ingebrigtsen, René Schwesig, Georg Fieseler, Karl S Delank, Karim Chamari, Roy J Shephard, Mohamed S Chelly
BACKGROUND: This study examined the effects of a 7-week in-season aerobic and high-intensity interval-training program on performance tests linked to successful handball play (e.g., repeated sprint and jumping ability). METHODS: Thirty participants (age 17.0 ± 1.2 years, body mass 81.1 ± 3.4 kg, height 1.82± 0.07 m) performed a Yo-Yo Intermittent Recovery Test level 1 (Yo-Yo IR1), a squat (SJ) and a countermovement jump test (CMJ), as well as a repeated sprint ability test (RSA)...
November 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27825551/repeated-sprint-ability-but-not-neuromuscular-fatigue-is-dependent-on-short-versus-long-duration-recovery-time-between-sprints-in-healthy-males
#5
Michael R Monks, Chris T Compton, Joseph D Yetman, Kevin E Power, Duane C Button
OBJECTIVES: During maximal intensity leg cycling sprints, previous research has shown that central and peripheral fatigue development occurs with various (<30s) short-duration recovery periods between sprints. The aim of the current study was to compare the development of neuromuscular fatigue during maximal intensity lower-body sprints interspersed with short and longer duration recovery periods. DESIGN: Crossover study. METHODS: Ten participants completed 10, 10s sprints interspersed with either 30 or 180s of recovery...
October 27, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27806004/the-validity-and-contributing-physiological-factors-to-30-15-intermittent-fitness-test-performance-in-rugby-league
#6
Tannath J Scott, Grant M Duthie, Jace A Delaney, Colin E Sanctuary, David A Ballard, Jeremy A Hickmans, Ben J Dascombe
This study examined the validity of the 30-15 Intermittent Fitness Test (30-15IFT) within rugby league. Sixty-three Australian elite and junior-elite rugby league players (22.5 ± 4.5 yr, 96.1. kg ± 9.5 kg, Σ7 skinfolds: 71.0 ± 18.7 mm) from a professional club participated in this study. Players were assessed for anthropometry (body mass, Σ7 skinfolds, lean mass index), prolonged high-intensity intermittent running (PHIR; measured by 30-15IFT), predicted aerobic capacity (MSFT) and power (AAS), speed (40 m sprint), repeated sprint and change of direction (COD - 505 agility test) ability prior to and following an 11 week pre-season training period...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27798634/influence-of-fatigue-on-tackling-ability-in-rugby-league-players-role-of-muscular-strength-endurance-and-aerobic-qualities
#7
Tim J Gabbett
This study investigated the influence of repeated high-intensity effort exercise on tackling ability in rugby league players, and determined the relationship between physical qualities and tackling ability under fatigued conditions in these athletes. Eleven semi-professional rugby league players underwent measurements of speed (10 m and 40 m sprint), upper-body strength (4 repetition maximum [RM] bench press and weighted chin-up), upper-body muscular endurance (body mass maximum repetition chin-up, body mass maximum repetition dips), lower-body strength (4RM squat), and estimated maximal aerobic power (multi-stage fitness test)...
2016: PloS One
https://www.readbyqxmd.com/read/27742804/influence-of-training-intensity-on-adaptations-in-acid-base-transport-proteins-muscle-buffer-capacity-and-repeated-sprint-ability-in-active-men
#8
Cian McGinley, David J Bishop
McGinley C, Bishop DJ. Influence of training intensity on adaptations in acid/base transport proteins, muscle buffer capacity, and repeated-sprint ability in active men. J Appl Physiol 121: 1290-1305, 2016. First published October 14, 2016; doi:10.1152/japplphysiol.00630.2016-This study measured the adaptive response to exercise training for each of the acid-base transport protein families, including providing isoform-specific evidence for the monocarboxylate transporter (MCT)1/4 chaperone protein basigin and for the electrogenic sodium-bicarbonate cotransporter (NBCe)1...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27735885/effect-5-weeks-pre-season-training-with-small-sided-game-in-rsa-according-to-physical-fitness
#9
Alejandro Rodríguez-Fernández, Javier Sánchez Sánchez, José A Rodríguez-Marroyo, David Casamichana, José G Villa
BACKGROUND: Numerous studies have analyzed during competitive season different conditioning programs to improve soccer players' repeat sprint ability (RSA). However, few studies have focused on analysing what happens with this ability after small-sided games (SSG)-based training. Thus, the aim of this study was to determine the changes in physical performance after 5-weeks of pre-season training composed of SSGs in amateur soccer players. METHODS: Twenty-four male soccer players performed RSA, a sit-and-reach and two vertical jump (squat and counter movement jump) tests before and after 5-weeks of pre- season training using fundamentally SSGs...
October 13, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27662490/repeated-sprint-sequences-during-female-soccer-matches-using-fixed-and-individual-speed-thresholds
#10
Fábio Y Nakamura, Lucas A Pereira, Irineu Loturco, Marcelo Rosseti, Felipe A Moura, Paul S Bradley
The main objective of this study was to characterize the occurrence of single sprint and repeated-sprint sequences (RSS) during elite female soccer matches, using fixed (20 kmh) and individually based speed thresholds (>90% of the mean speed from a 20 m sprint test). Eleven elite female soccer players from the same team participated in the study. All players performed a 20 m linear sprint test, and were assessed in up to 10 official matches using Global Positioning System (GPS) technology. Magnitude-based inferences were used to test for meaningful differences...
September 20, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27662489/effects-of-two-different-volume-equated-weekly-distributed-short-term-plyometric-training-programs-on-futsal-players-physical-performance
#11
Javier Yanci, Daniel Castillo, Aitor Iturricastillo, Rubén Ayarra, Fabio Yuzo Nakamura
The aim was to analyze the effect of two different plyometric training programs (i.e., one vs. two sessions per week, same total weekly volume) on physical performance in futsal players. Forty-four futsal players were divided into three training groups differing in weekly plyometric training load: the two days per week plyometric training group (PT2D, n=15), the one day per week plyometric training group (PT1D, n=12) and the control group (CG, n=12) which did not perform plyometric training. The results of this study showed that in-season futsal training per se was capable of improving repeat sprint ability (RSA) (ES=-0...
September 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27644475/effects-of-pomegranate-extract-on-blood-flow-and-vessel-diameter-after-high-intensity-exercise-in-young-healthy-adults
#12
Erica J Roelofs, Abbie E Smith-Ryan, Eric T Trexler, Katie R Hirsch, Meredith G Mock
The effects of pomegranate extract (PE) supplementation were evaluated on high-intensity exercise performance, blood flow, vessel diameter, oxygen saturation (SPO2), heart rate (HR), and blood pressure (BP). In a randomized, crossover design, nineteen recreationally resistance-trained participants were randomly assigned to PE (1000 mg) or placebo (PL), which were consumed 30 min prior to a repeated sprint ability (RSA) test and repetitions to fatigue (RTF) on bench and leg press. The RSA consisted of ten six-second sprints on a friction-loaded cycle ergometer with 30 s recovery...
September 20, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27625753/acute-responses-to-10%C3%A3-15-m-repeated-sprint-ability-exercise-in-adolescent-athletes-the-role-of-change-of-direction-and-sport-specialization
#13
Pantelis Theodoros Nikolaidis, Panagiotis Meletakos, Ioannis Tasiopoulos, Ioannis Kostoulas, Panagiotis Ganavias
BACKGROUND: The repeated sprint ability (RSA) has been studied with protocols using distances longer than 20 m per sprint, whereas basketball players cover on average less than 20-meter distance per sprint during match. OBJECTIVES: The aim of the present study was to examine the physiological impact of 10 × 15 m RSA test in straight-line (RSASL) or with change of direction (RSACOD), i.e. 10 × (7.5 + 7.5 m)) in young national level basketball players. PATIENTS AND METHODS: Young basketball players (n = 11, age 17...
June 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27601786/physical-performance-of-elite-and-subelite-spanish-female-futsal-players
#14
D J Ramos-Campo, J A Rubio-Arias, M Carrasco-Poyatos, P E Alcaraz
The aim of this study was to determine the parameters distinguishing top female futsal players from lower level players. Twenty-seven female futsal players participated in the study, composed of professional first division (elite; n = 15) players and semi-professional second division players (sub-elite; n = 14). Active and passive straight leg raise tests, isokinetic strength of the knee extensor and flexor muscles at 60° · s(-1) angular velocity, squat and counter movement jumps, 30 m sprint, 30 m agility, repeated sprint ability test and maximum ball speed during shooting were measured...
September 2016: Biology of Sport
https://www.readbyqxmd.com/read/27589795/effects-of-a-short-term-high-nitrate-diet-on-exercise-performance
#15
Simone Porcelli, Lorenzo Pugliese, Enrico Rejc, Gaspare Pavei, Matteo Bonato, Michela Montorsi, Antonio La Torre, Letizia Rasica, Mauro Marzorati
It has been reported that nitrate supplementation can improve exercise performance. Most of the studies have used either beetroot juice or sodium nitrate as a supplement; there is lack of data on the potential ergogenic benefits of an increased dietary nitrate intake from a diet based on fruits and vegetables. Our aim was to assess whether a high-nitrate diet increases nitric oxide bioavailability and to evaluate the effects of this nutritional intervention on exercise performance. Seven healthy male subjects participated in a randomized cross-over study...
2016: Nutrients
https://www.readbyqxmd.com/read/27565172/multi-directional-sprinting-and-acceleration-phase-in-basketball-and-handball-players-aged-14-and-15-years
#16
Marek Popowczak, Andrzej Rokita, Artur Struzik, Ireneusz Cichy, Andrzej Dudkowski, Paweł Chmura
An important role in handball and basketball is played by ability to accelerate and ability to repeat multiple sprints. The aim of the study was to assess level of ability in multi-directional sprinting and running time over the first 5 m of the 30 m sprint in 93 basketball and handball players (46 boys and 47 girls) aged 14 to 15 years. The attempts were also made to find the relationships between the time of a 5-m run to evaluate initial acceleration phase and multi-directional sprinting evaluated using Five-Time Shuttle Run To Gates Test Statistical analysis revealed no important differences in times of 5-m runs and times of multi-directional sprinting between groups with different ages, genders, and sports specialties...
October 2016: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/27537203/the-effect-of-slope-on-repeated-sprint-ability-in-young-soccer-players
#17
J Padulo, L P Ardigò, G Attene, C Cava, D P Wong, K Chamari, G M Migliaccio
This study aimed to describe a gradient repeated sprint ability (RSA) test in comparison with a standard level one by investigating performance, metabolic demand and muscular jumping performance as a proxy for running mechanics. Eighteen athletes performed two level RSA tests (40 m × 6) - for reliability evaluation - and one ±5% gradient RSA test, second leg downhill (RSAgrad). Rating of perceived exertion (RPE), blood lactate concentration (BLa) concentration, vertical jump heights were assessed as well...
August 18, 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27448143/effects-of-recovery-mode-on-physiological-and-psychological-responses-and-performance-of-specific-skills-in-young-soccer-players
#18
Adnene Gharbi, Liwa Masmoudi, Hamdi Chtourou, Nesrine Chaari, Zouhair Tabka
BACKGROUND: The ability to perform repeated sprints is likely influenced by the mode of the recovery. Despite performance time, peak power, and mean power measured in most of studies, there are other specific sport abilities that should be examined after different recovery strategies.The aim of this study was to examine the effects of recovery modes (active [AR] vs passive [PR]) on physiological performance (lactate, HR, and blood pressure), psychological performance (perceived exertion rating [RPE] and feeling scale [FS]), and specific skills (kicking accuracy [KA] and repeated dribbling) in young soccer players...
July 22, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27445852/repeated-sprint-ability-in-young-basketball-players-part-2-the-chronic-effects-of-multidirection-and-of-one-change-of-direction-are-comparable-in-terms-of-physiological-and-performance-responses
#19
Giuseppe Attene, Pantelis T Nikolaidis, Nicola L Bragazzi, Antonio Dello Iacono, Fabio Pizzolato, Alessandro M Zagatto, Juliano Dal Pupo, Marcello Oggianu, Gian M Migliaccio, Elena Mannucci Pacini, Johnny Padulo
The aim of this study was to examine the effects of a 5-week training program, consisting of repeated 30-m sprints, on two repeated sprint ability (RSA) test formats: one with one change of direction (RSA) and the other with multiple changes of direction (RSM). Thirty-six young male and female basketball players (age 16.1 ± 0.9 years), divided into two experimental groups, were tested for RSA, RSM, squat jump, counter-movement jump, and the Yo-Yo Intermittent Recovery-Level-1 (Yo-Yo IR1) test, before and after a 4-week training program and 1 week of tapering...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27442337/the-30-15-intermittent-fitness-test-can-it-predict-outcomes-in-field-tests-of-anaerobic-performance
#20
Brendan R Scott, Jacob A Hodson, Andrew D Govus, Ben J Dascombe
This study determined whether a composite assessment of intermittent fitness could be used to quantify performance in several anaerobic tasks. Fifty-two male recreational athletes (age: 24.3 ± 4.4 yr; body mass: 85.1 ± 12.2 kg; height: 180.5 ± 7.0 cm) were recruited from various team sports. Participants completed a battery of field tests to assess sprinting speed (40 m sprint), acceleration ability (10 m sprint), change of direction speed (505 test), anaerobic capacity (300 m shuttle), lower body power (vertical jump) and repeated sprint ability, as well as the 30-15 Intermittent Fitness Test to determine the velocity of intermittent fitness (VIFT)...
July 16, 2016: Journal of Strength and Conditioning Research
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