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Full-Text Articles in Medicine and Health Sciences
Variations In Strength-Speed-Power Performance Across The Season: Do True Changes Occur In Elite Rugby Players?, Irineu Loturco, Chris Bishop, Santiago Zabaloy, Túlio B. M. A. Moura, Maurício S. Ramos, Lucas A. Pereira, Michael R. Mcguigan
Variations In Strength-Speed-Power Performance Across The Season: Do True Changes Occur In Elite Rugby Players?, Irineu Loturco, Chris Bishop, Santiago Zabaloy, Túlio B. M. A. Moura, Maurício S. Ramos, Lucas A. Pereira, Michael R. Mcguigan
Research outputs 2022 to 2026
This study aimed to determine, through the use of a highly sensitive statistical tool, whether real changes in performance were present; and compare the rates of meaningful variations in strength, speed, and power parameters at different time-points during the competitive season in national team rugby players. Thirty-two players were assessed 5 times across the season using the following tests: squat jump and countermovement jump tests; 30-m sprint velocity; and one-repetition maximum (1RM) in the half-squat and bench-press exercises. A repeated-measures analysis of variance was conducted to test for differences between successive time-points. Individual coefficients of variation values were used to …
What Are The Odds? Identifying Factors Related To Competitive Success In Powerlifting, Daniel J. Van Den Hoek, Patrick J. Owen, Joel M. Garrett, Robert J. Howells, Joshua Pearson, Jemima G. Spathis, Christopher Latella
What Are The Odds? Identifying Factors Related To Competitive Success In Powerlifting, Daniel J. Van Den Hoek, Patrick J. Owen, Joel M. Garrett, Robert J. Howells, Joshua Pearson, Jemima G. Spathis, Christopher Latella
Research outputs 2022 to 2026
Background: The ability for athletes to gain a competitive advantage over their opponents is well recognised. At times, this advantage may be considered a marginal gain. However, in the context of competition, marginal advantages may be the difference between winning and losing. This investigation explores how competition factors influence the odds of competitive success (i.e. winning) in powerlifting (PL) to assist athletes and coaches in achieving a competitive advantage. Methods: A cross-sectional, retrospective analysis of competition data from raw/classic, Australian powerlifting competitions 2010–2019 was conducted. Data included 10,599 competition entries (males: n = 6567 [62%], females: n = 4032 [38%]). …
Squat And Countermovement Jump Performance Across A Range Of Loads: A Comparison Between Smith Machine And Free Weight Execution Modes In Elite Sprinters, Irineu Loturco, Michael R. Mcguigan, Tomás T. Freitas, Fábio Y. Nakamura, Daniel A. Boullosa, Pedro L. Valenzuela, Lucas A. Pereira, Fernando Pareja-Blanco
Squat And Countermovement Jump Performance Across A Range Of Loads: A Comparison Between Smith Machine And Free Weight Execution Modes In Elite Sprinters, Irineu Loturco, Michael R. Mcguigan, Tomás T. Freitas, Fábio Y. Nakamura, Daniel A. Boullosa, Pedro L. Valenzuela, Lucas A. Pereira, Fernando Pareja-Blanco
Research outputs 2022 to 2026
The aims of this study were to: 1) provide and compare the height achieved during Smith machine (SM) and free weight (FW) loaded jumps executed over a wide spectrum of loads (40–120 % of body mass [BM]); and 2) test the difference between loaded and unloaded squat jump (SJ) and countermovement jump (CMJ) attempts in ten highly trained male sprinters. On the first visit, athletes performed unloaded SJ and CMJ, loaded SJ with loads corresponding to 40, 60, 80, 100, and 120 % BM, and loaded CMJ at 100% BM using an Olympic barbell (FW). On the second visit, they …
Influence Of Physical And Technical Aspects On Change Of Direction Performance Of Rugby Players: An Exploratory Study, Tomás T. Freitas, Pedro E. Alcaraz, Julio Calleja-González, Ademir F. S. Arruda, Aristide Guerriero, Valter P. Mercer, Lucas A. Pereira, Felipe P. Carpes, Michael R. Mcguigan, Irineu Loturco
Influence Of Physical And Technical Aspects On Change Of Direction Performance Of Rugby Players: An Exploratory Study, Tomás T. Freitas, Pedro E. Alcaraz, Julio Calleja-González, Ademir F. S. Arruda, Aristide Guerriero, Valter P. Mercer, Lucas A. Pereira, Felipe P. Carpes, Michael R. Mcguigan, Irineu Loturco
Research outputs 2014 to 2021
We examined the relationships between change of direction (COD) speed and deficit, and a series of speed-and power-related measurements in national team rugby union players and analyzed the influence of movement patterns on COD ability. Eleven male athletes completed the following physical assessments on different days: day 1—anthropometric measurements, and lower-body kinematic parameters (assessed with eight inertial sensors) and completion time in COD tests (proagility, 45◦ cutting maneuver (CUT), and “L” (L-Drill)); day 2—bilateral and unilateral squat and countermovement jumps, 40 m linear sprint, and bar-power output in the jump squat and half-squat exercises. Pearson’s product–moment correlations were performed to …
Variations In The Physical Performance Of Olympic Boxers Over A Four-Day National Qualifying Tournament, Irineu Loturco, Michael R. Mcguigan, Tomás T. Freitas, Chris Bishop, Pedro E. Alcaraz, Felipe Romano, Mateus Alves, Valter P. Reis, Lucas A. Pereira, Emerson Franchini
Variations In The Physical Performance Of Olympic Boxers Over A Four-Day National Qualifying Tournament, Irineu Loturco, Michael R. Mcguigan, Tomás T. Freitas, Chris Bishop, Pedro E. Alcaraz, Felipe Romano, Mateus Alves, Valter P. Reis, Lucas A. Pereira, Emerson Franchini
Research outputs 2014 to 2021
The aim of this study was to examine changes in body mass (BM) and power-related measures in Olympic boxers during an official qualifying boxing tournament. Fourteen elite amateur boxers from the Brazilian National Team (eight men and six women) participated in this study. Athletes performed three fights in four days against the same opponent of the same weight-category. Before and immediately after every fight, BM, countermovement jump (CMJ) height, and power production in the bench-press and half-squat exercises were assessed in the same order and on the same time of the day. A two-way repeated-measures ANOVA with the Bonferroni post-hoc …
Which Are The Nutritional Supplements Used By Beach-Volleyball Athletes? A Cross-Sectional Study At The Italian National Championship, Stefano Amatori, Davide Sisti, Fabrizio Perroni, Samuel Impey, Michela Lantignotti, Marco Gervasi, Sabrina Donati Zeppa, Marco B. Rocchi
Which Are The Nutritional Supplements Used By Beach-Volleyball Athletes? A Cross-Sectional Study At The Italian National Championship, Stefano Amatori, Davide Sisti, Fabrizio Perroni, Samuel Impey, Michela Lantignotti, Marco Gervasi, Sabrina Donati Zeppa, Marco B. Rocchi
Research outputs 2014 to 2021
Beach volleyball is an intermittent team sport played under high temperature and humidity. Given that some nutritional supplements can enhance sports performance, this study aimed to evaluate the quantity and the heterogeneity of the nutritional supplementation practices of amateur (n = 69) and professional (n = 19) beach volley athletes competing in the Italian National Championship; an online form was used to collect data about the supplementation habits. The latent class analysis was used to find sub-groups characterised by different habits regarding supplements consumption. The most frequently used supplements (more than once a week) are vitamins B and C (39.2% …
Effects Of Cluster Sets And Rest-Redistribution On Mechanical Responses To Back Squats In Trained Men, James J. Tufano, Jenny A. Colon, Sophia Nimphius, Lee E. Brown, Alex Petkovic, Justin Frick, Greg Haff
Effects Of Cluster Sets And Rest-Redistribution On Mechanical Responses To Back Squats In Trained Men, James J. Tufano, Jenny A. Colon, Sophia Nimphius, Lee E. Brown, Alex Petkovic, Justin Frick, Greg Haff
Research outputs 2014 to 2021
Eight resistance-trained men completed three protocols separated by 48-96 hours. Each protocol included 36 repetitions with the same rest duration, but the frequency and length of rest periods differed. The cluster sets of four (CS4) protocol included 30 s of rest after the 4th, 8th, 16th, 20th, 28th, and 32nd repetition in addition to 120 s of rest after the 12th and 24th repetition. For the other two protocols, the total 420 s rest time of CS4 was redistributed to include nine sets of four repetitions (RR4) with 52.5 s of rest after every four repetitions, or 36 sets of …
Effects Of Short-Term Training With Uncoupled Cranks In Trained Cyclists, Jack Burns, Jeremiah Peiffer, Chris Abbiss, Greig Watson, Angus Burnett, Paul Laursen
Effects Of Short-Term Training With Uncoupled Cranks In Trained Cyclists, Jack Burns, Jeremiah Peiffer, Chris Abbiss, Greig Watson, Angus Burnett, Paul Laursen
Research outputs 2012
Purpose: Manufacturers of uncoupled cycling cranks claim that their use will increase economy of motion and gross efficiency. Purportedly, this occurs by altering the muscle-recruitment patterns contributing to the resistive forces occurring during the recovery phase of the pedal stroke. Uncoupled cranks use an independentclutch design by which each leg cycles independently of the other (ie, the cranks are not fixed together). However, research examining the efficacy of training with uncoupled cranks is equivocal. The purpose of this study was to determine the effect of short-term training with uncoupled cranks on the performance-related variables economy of motion, gross efficiency, maximal …
Effects Of Two Contrast Training Programs On Jump Performance In Rugby Union Players During A Competition Phase, C K Argus, N D Gill, J W Keogh, Michael Mcguigan, W G Hopkins
Effects Of Two Contrast Training Programs On Jump Performance In Rugby Union Players During A Competition Phase, C K Argus, N D Gill, J W Keogh, Michael Mcguigan, W G Hopkins
Research outputs 2012
Purpose: There is little literature comparing contrast training programs typically performed by team-sport athletes within a competitive phase. We compared the effects of two contrast training programs on a range of measures in high-level rugby union players during the competition season. Methods: The programs consisted of a higher volume-load (strength-power) or lower volume-load (speed-power) resistance training; each included a tapering of loading (higher force early in the week, higher velocity later in the week) and was performed twice a week for 4 wk. Eighteen players were assessed for peak power during a bodyweight countermovement jump (BWCMJ), bodyweight squat jump (BWSJ), …