Physiological demands of match-play in elite tennis: A case study

2011 ◽  
Vol 11 (2) ◽  
pp. 105-109 ◽  
Author(s):  
Rodrigo V. Gomes ◽  
Aaron J. Coutts ◽  
Luis Viveiros ◽  
Marcelo S. Aoki
Author(s):  
Bruno Ruscello ◽  
Sara Iannelli ◽  
Filippo Partipilo ◽  
Mario Esposito ◽  
Laura Pantanella ◽  
...  

Author(s):  
Timothy Baghurst ◽  
Steven L. Prewitt ◽  
Tyler Tapps

Obstacle course races are a popular source of recreation in the United States, providing additional challenges over traditional endurance events. Despite their popularity, very little is known about the physiological or cognitive demands of obstacle course races compared to traditional road races. The purpose of this study was to investigate the physiological effects of participation in an extreme obstacle course race. The participant was a 38-year-old Caucasian male, who completed an extreme obstacle course race over a 24-h period. Exercise intensity, steps taken, energy expenditure, and heart rate were recorded over the event’s duration using an Actigraph Link GT9X-BT accelerometer and a Polar heart rate monitor. Results reflected the unique nature of obstacle course racing when compared to traditional endurance events, with ups-and-downs recorded in each variable due to the encountering of obstacles. This case study provides a glimpse into the physiological demands of obstacle course racing, and suggests that the cognitive demands placed on competitors may differ to traditional endurance events, due to the challenges of obstacles interspersed throughout the event. With the popularity of obstacle course racing, and to enhance training opportunities, improve performance, and decrease the incidence of injuries, future research should further investigate the physiological and cognitive demands of obstacle course races of various distances and among diverse populations.


2009 ◽  
Vol 31 (4) ◽  
pp. 15-26 ◽  
Author(s):  
Jaime Fernandez-Fernandez ◽  
David Sanz-Rivas ◽  
Alberto Mendez-Villanueva

2020 ◽  
Vol 34 (6) ◽  
pp. 1759-1768 ◽  
Author(s):  
Damien Young ◽  
Marco Beato ◽  
Laurent Mourot ◽  
Giuseppe Coratella

Retos ◽  
2019 ◽  
pp. 137-142
Author(s):  
José Martín Gamonales ◽  
Carlos David Gómez-Carmona ◽  
David Mancha-Triguero ◽  
Jesús Muñoz-Jiménez ◽  
Kiko León

Los estudios relacionados con la Gimnasia Rítmica, son escasos y con temáticas muy diversas, en particular en etapas de aprendizaje, mostrando que es un campo de conocimiento incipiente dentro de las Ciencias del Deporte. El uso de dispositivos inerciales en la evaluación durante la ejecución de los ejercicios nos da una nueva posibilidad de análisis objetivo del rendimiento. Por ello, la finalidad del presente estudio fue conocer la carga interna y externa en jóvenes deportistas de Gimnasia Rítmica, evaluada a través de dispositivos inerciales, así como analizar las diferencias según el aparato utilizado (Aro, Mazas, Cinta, Pelota, Cuerda y Manos libre) y la categoría (Sub-15 y Sub-12). La muestra estuvo compuesta por 7 gimnastas de nivel nacional. Las variables analizadas fueron las demandas físico-fisiológicas (FCMEDIA, FCMAX, RS-Ps, Pasos, Saltos, Imp y PL), los aparatos utilizados y la categoría de las gimnastas. Se realizó un análisis descriptivo (M±DE), y una prueba estadística ANOVA de dos vías, realizando la comparación por pares mediante Bonferroni, con la finalidad de conocer las diferencias entre las categorías y los aparatos. Los resultados obtenidos muestran la existencia de diferencias según el aparato empleado, y la categoría de las gimnastas. Dichas diferencias, están relacionada con las variables planteadas en el estudio. Por tanto, los ejercicios de Gimnasia Rítmicas son únicos, y requieren una serie de demandas específicas según la categoría. Abstract. Currently there is a small number of studies related to Rhythmic Gymnastics, even less those focusing on early stages of development, which shows this is an incipient knowledge area in sports sciences. The development of inertial devices for the assessment of routines execution opens up to new possibilities for objective workload analysis. Therefore, the objective of the study was to assess internal and external load in young athletes of Rhythmic Gymnastics using inertial devices, as well as to analyse differences based on the equipment used (Hoop, Maces, Tape, Ball, Rope, and Hands-free) and the category (Under-15 versus Under-12). The sample was composed of 7 national-level gymnasts. The variables analysed were physical-physiological demands (HRAVG, HRMAX, RS-Ps, Steps, Jumps, Imp and PL), equipment used, and gymnast category. A descriptive analysis (M±SD) was performed, and a two-way ANOVA statistical test, making the pairwise comparison through Bonferroni in order to know the differences between categories and equipment. The results obtained show the existence of differences according to the equipment used, and the category of gymnasts. These differences are related to the variables assessed in the study. Therefore, Rhythmic Gymnastics exercises are unique, and require a series of specific demands according to the category.


Author(s):  
Guilherme de Sousa Pinheiro ◽  
Roberto Chiari Quintão ◽  
Vitor Bertoli Nascimento ◽  
João Gustavo Claudino ◽  
Adriano Lima Alves ◽  
...  

This study investigated the differences in external and internal load during pre-season training sessions carried out with different SSGs and a friendly match in top-class professional football players. The study was conducted over a full pre-season. Participants were 9 male top-class professional football players (25 ± 5 years; 74 ± 8 kg; 177 ± 8 cm). The following variables were measured: training session duration (min), average heart rate (bpm), total distance (m), distance covered per minute (m/min), the total number of accelerations > 2.5 m/s2, number of accelerations > 2.5 m/s2 per minute, average distance of accelerations (m), the average value of acceleration (m/s2). One-way ANOVA was performed to analyze the variance of all evaluated variables. No differences were found in the average accelerations (m/s2) (0.128) among all the training formats. Moderate differences were found in number of accelerations > 2.5 m/s2 per minute (η2 = 0.396, moderate effect) and average distance of accelerations (η2 = 0.545). Strong differences were found in HR (η2 = 0.788, large effect), total distance (η2 = 0.797, strong effect), distance per minute (η2 = 0.775 strong effect), total number of accelerations > 2.5 m/s2 (η2 = 0.699 strong effect). Significant correlations were found just for the number of accelerations > 2.5 m/s2 and the number of accelerations > 2.5 m/s2 per minute with the 4v4, 8v8 and the FM (r = 0.828–0.890, r2 = 69% – 79%; p < 0.01). External and internal loads differ across different SSGs and a FM during the pre-season training sessions.


2008 ◽  
Vol 3 (3) ◽  
pp. 305-319 ◽  
Author(s):  
Shaun D’Auria ◽  
Tim Gabbett

Purpose:The purpose of this study was to investigate the physiological demands of field players in international women’s water polo match play.Methods:Video footage was collected at the 13th FINA Women’s Water Polo World Cup in Perth in 2002. Video recordings were analyzed using a simple hand-based notation system to record predefined activity durations, frequencies, and corresponding subjective intensities.Results:Average exercise bout duration was 7.4 ± 2.5 s and exercise to rest ratio within play 1:1.6 ± 0.6. The average pattern of exercise was represented by 64.0 ± 15.3% swimming, 13.1 ± 9.2% contested swimming, 14.0 ± 11.6% wrestling, and 8.9 ± 7.1% holding position. Significant differences existed between outside and center players for percentage time swimming (67.5 ± 14.0% vs 60.2 ± 13.3%, P = .002) and wrestling (9.9 ± 9.3% vs 18.4 ± 11.1%, P = .000). A significant difference was found in the number (P = .017) and duration (P = .010) of high-intensity activity (HIA) bouts performed each quarter for outside (1.8 ± 2.2 bouts, 7.0 ± 3.4 s) and center players (1.2 ± 1.5 bouts, 5.2 ± 3.4 s). Positional differences in HIA were the result of a significant difference (P = .000) in the number of maximal/near maximal swims (outside 1.2 ± 1.5 and center 0.5 ± 0.9 per quarter).Conclusions:This study characterizes international women’s water polo match play as a highly intermittent activity. Swimming, particularly high intensity, has greater significance to outside players, whereas wrestling has greater significance to center players.


2016 ◽  
Vol 11 (8) ◽  
pp. 1080-1087 ◽  
Author(s):  
Amy Brightmore ◽  
John O’Hara ◽  
Kevin Till ◽  
Steve Cobley ◽  
Tate Hubka ◽  
...  

Purpose:To evaluate the movement and physiological demands of Australasian National Rugby League (NRL) referees, officiating with a 2-referee (ie, lead and pocket) system, and to compare the demands of the lead and pocket referees. Methods:Global positioning system devices (10 Hz) were used to obtain 86 data sets (lead, n = 41; pocket, n = 45) on 19 NRL referees. Total distance, relative distance covered, and heart rate per half and across match play were examined within and between referees using t tests. Distance, time, and number of movement “efforts” were examined in 6 velocity classifications (ie, standing <0.5, walking 0.51–2.0, jogging 2.01–4.0, running 4.01–5.5, high-speed running 5.51–7.0, and sprinting >7.0 m/s) using analysis of variance. Cohen d effect sizes are reported. Results:There were no significant differences between the lead and pocket referees for any movement or physiological variable. There was an overall significant (large, very large) effect for distance (% distance) and time (% time) (P < .001) between velocity classifications for both the lead and pocket referees. Both roles covered the largest distance and number of efforts at velocities of 0.51–2.0 m/s and 2.01–4.0 m/s, which were interspersed with efforts >5.51 m/s. Conclusions:Findings highlight the intermittent nature of rugby league refereeing but show that there were no differences in the movement and physiological demands of the 2 refereeing roles. Findings are valuable for those responsible for the preparation, training, and conditioning of NRL referees and to ensure that training prepares for and simulates match demands.


Sign in / Sign up

Export Citation Format

Share Document