scholarly journals Análisis de las demandas de Sprint en competición por puestos específicos en el rugby 7 femenino (Analysis of the Sprint demands during competition by playing positions in women’s rugby 7)

Retos ◽  
2020 ◽  
pp. 46-51
Author(s):  
Javier Rodríguez Baena ◽  
Javier Galvez Gonzalez
Keyword(s):  
Global Positioning System ◽  
Maximum Speed ◽  
Positioning System ◽  
Considerable Decrease ◽  
Repeated Sprints ◽  
Repeated Sprint ◽  
Global Positioning ◽  
Para Determinar ◽  
Los Grupos ◽  
Individual Threshold

Resumen. El objetivo de este estudio es analizar las manifestaciones de sprint, la capacidad de repetir sprint y las posibles diferencias entre los periodos de juego de jugadoras de rugby 7, teniendo en cuenta su puesto específico de juego. Fueron monitorizadas 21 jugadoras (edad 21.2 ± 2.4) agrupadas por puestos específicos: delanteras (n=9; 166.3 ± 12.6 cm; 65.4 ± 7.2 kg) y línea ¾ (n=12; 163.4 ± 9.8cm; 61.7 ± 4.1 kg) en torneos de competición oficial, utilizando un sistema de posicionamiento global (GPS). Para determinar un sprint se consideró umbral individualizado del 61% de la velocidad máxima de cada jugadora. Los resultados muestran que existen diferencias significativas al analizar los grupos de jugadoras (p <.05), en la velocidad máxima (27.0 ± 2.10 vs 24.7 ±1.65), en velocidad máxima en competición (25.9 ± 2.34 vs 21.9 ± 2.59), umbral de sprint (16.4 ± 1.29 vs 15.0 ± 1.0), número de sprint (6.83 ± 1.88 vs 4.54 ± 1.44), distancia recorrida a sprint (166.0 ± 15.64 vs 135 ± 13.94) y sprint repetidos (1.82 ± .76 vs 1.11 ± .31). Se encontraron diferencias significativas entre ambos periodos de juego (p <.05), observándose una disminución considerable en el segundo tiempo de la velocidad máxima en competición, el número de sprints, distancia recorrida a sprint y sprints repetidos. Podemos concluir que el uso de umbrales relativos incrementa el registro del número de sprint. Las diferencias por puestos específicos puede ayudarnos a una mejor comprensión de las demandas de competición y optimizar la planificación del entrenamiento. Abstract. The aim of this study is to analyze sprint demands, the ability to repeat sprints and the possible differences between the playing periods of rugby-7 players, considering their playing position. A total of 21 players (age 21.2 ± 2.4) grouped by specific positions (forwards: n = 9; 166.3 ± 12.6 cm; 65.4 ± 7.2 kg; and backs :n = 12; 163.4 ± 9.8cm; 61.7 ± 4.1 kg) were monitored in official competition tournaments, using a global positioning system (GPS). To determine a sprint, an individual threshold of 61% of the maximum speed of each player was considered. The results show that, when analyzing the group of players (p <.05), there are significant differences in the maximum speed (27.0 ± 2.10 vs 24.7 ± 1.65), in maximum speed in competition (25.9 ± 2.34 vs 21.9 ± 2.59), threshold of sprint (16.4 ± 1.29 vs 15.0 ± 1.0), sprint number (6.83 ± 1.88 vs 4.54 ± 1.44), distance traveled to sprint (166.0 ± 15.64 vs 135 ± 13.94), and repeated sprint (1.82 ± .76 vs. 1.11 ± .31). Significant differences were found between both periods of play (p <.05), observing a considerable decrease of the maximum speed in competition, the number of sprints, distance traveled to sprints, and repeated sprints during the second half. The use of relative thresholds increases the number of sprints. The differences in playing positions can help us to better understand the demands of competition and optimize training planning.

Physical and Physiological Characteristics of Various-Sided Games in Elite Women’s Soccer

2016 ◽  
Vol 11 (7) ◽  
pp. 953-958 ◽  
Author(s):  
Jocelyn K. Mara ◽  
Kevin G. Thompson ◽  
Kate L. Pumpa
Keyword(s):  
Global Positioning System ◽  
Conditioning Stimulus ◽  
Soccer Players ◽  
Maximum Speed ◽  
Positioning System ◽  
Global Positioning ◽  
Aerobic Conditioning ◽  
Repeat Sprint Ability ◽  
Repeat Sprint ◽  
Women's Soccer

Purpose:To investigate the physical and physiological response to different formats of various-sided games.Methods:Eighteen elite women’s soccer players wore 15-Hz global positioning system devices and heart-rate (HR) monitors during various-sided games (small, 4 vs 4 and 5 vs 5; medium, 6 vs 6 and 7 vs 7; large, 8 vs 8 and 9 vs 9).Results:Players covered more relative sprinting distance during large-sided games than in small-sided (P < .001, d = 0.69) and medium-sided (P < .001, d = 0.54) games. In addition, a greater proportion of total acceleration efforts that had a commencement velocity <1 m/s were observed in small-sided games (44.7% ± 5.5%) than in large-sided games (36.7% ± 10.6%) (P = .018, d = 0.94). This was accompanied by a greater proportion of acceleration efforts with a final velocity equivalent to the sprint threshold in large-sided games (15.4% ± 7.7%) than in small-sided games (5.2% ± 2.5%) (P < .001, d = 1.78). The proportion of time spent in HR zone 4 (>85% maximum HR) was greater during small-sided games (69.8% ± 2.5%) than in medium- (62.1% ± 2.8%, d = 2.90) and large-sided games (54.9% ± 3.1%) (P < .001, d = 5.29).Conclusions:The results from this study demonstrate that coaches can use small-sided games as an aerobic conditioning stimulus and to develop players’ explosiveness and repeat-sprint ability over short durations. Large-sided games can be used to maintain aerobic capacity and develop maximum speed over longer distances.

scholarly journals Diagnóstico territorial y espacial de la apicultura en los sistemas agroecológicos de la Comarca Lagunera

2018 ◽  
Vol 5 (2) ◽  
pp. 215-228
Author(s):  
José Luis Reyes-Carrillo ◽  
José Luis Galarza-Mendoza ◽  
Rubí Muñoz-Soto ◽  
Alejandro Moreno-Reséndez
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Global Positioning ◽  
El Sistema ◽  
Para Determinar

El manejo productivo de las abejas melíferas y el uso de la tecnología relacionada ha permitido mejorar las prácticas que se desarrollan en los diferentes procesos de esta actividad; sin embargo, ha sido poco frecuente el cambio hacia otras formas de enfoque como las determinaciones del origen botánico de las mieles y de la vegetación pecoreada por las abejas; por ello este estudio se realizó para determinar el panorama espacio- territorial de la apicultura en la Comarca Lagunera en el año 2011. Los apiarios se georeferenciaron utilizando el Sistema de Posicionamiento Global (Global Positioning System (GPS). Para representar cartográficamente la ubicación y la distancia geográf ica de las diferentes estructuras elementales de vegetación de interés apícola, en un radio de 3 km a partir del sitio geográfico del apiario, se utilizó la cartografía digital de uso de suelo y vegetación de escala 1:250 000. De acuerdo al modelo de Información geográfica existe una distancia relativamente corta entre cada sitio de apiario, por lo que la flora presente en los espacios territoriales será más competida por las abejas. Gómez Palacio, Durango y Matamoros, Coahuila son los municipios que tienen el mayor número de apiarios. El mosaico ecológico más importante es el matorral desértico micrófilo asociado a la vegetación secundaria. El mezquite es la especie silvestre más prominente para la apicultura en la Comarca Lagunera. Por otra parte, la alfalfa, los cultivos forrajeros anuales y los hortícolas conformaron el conglomerado vegetal cultivado de mayor importancia para las abejas melíferas en esta región.

Quantifying the movement patterns of international women’s rugby sevens preparation training camp sessions

2017 ◽  
Vol 12 (5) ◽  
pp. 677-684 ◽  
Author(s):  
Jesse A Griffin ◽  
Christopher P McLellan ◽  
Jarrod Presland ◽  
Evelyne Rathbone ◽  
Justin WL Keogh
Keyword(s):  
Global Positioning System ◽  
Average Duration ◽  
Movement Patterns ◽  
Positioning System ◽  
Physical Demands ◽  
Repeated Sprints ◽  
Training Camp ◽  
Physiological Adaptations ◽  
Global Positioning ◽  
Residual Fatigue

Training camps in the present study consisted of four sessions over two to four days, to prepare players for international competitions. Training camps focused on improving the technical and decision making skills in context with team tactics, however it is unknown if the physical demands were being developed or maintained concurrently. Due to the unknown physical demands of training camps, the present study sought to quantify the movement patterns and compare sessions of preparation training camps for international women’s rugby sevens players. Twenty-four international female sevens players (age 24 ± 5 years, height 168 ± 5 cm, body mass 68 ± 6 kg; mean ± SD) were monitored over seven training camps using Global Positioning System units with integrated triaxial accelerometers. Women’s sevens players covered a median total distance of 3823 m (relative distance of 44 m/min) during training camp sessions that lasted for an average duration of 91 minutes. Sprints occurred 41 times and repeated sprints occurred 14 times during training sessions at a rate of 0.47 sprints per minute and 0.17 repeated sprints per minute. The present study indicated that as a result of the technical and tactical focus of training camps the physical demands maybe insufficient to enhance physiological adaptations. Instead it appears that players are being prepared for upcoming competition by reducing residual fatigue and optimising freshness.

Speed of gaits in Icelandic horses and relationships to sex, age, conformation measurements and subjective judges’ scores

2020 ◽  
pp. 1-10
Author(s):  
G.J. Stefánsdóttir ◽  
A. Jansson ◽  
S. Ragnarsson ◽  
V. Gunnarsson
Keyword(s):  
Body Length ◽  
Field Test ◽  
Global Positioning System ◽  
Maximum Speed ◽  
Positioning System ◽  
Objective Measurements ◽  
Global Positioning ◽  
The Mean ◽  
First Time ◽  
Icelandic Horses

The aim was to measure the mean and maximum speed and the range of speed in all gaits of Icelandic horses shown at a breed evaluation field test (BEFT). In addition, the effect of speed on scores for the gaits and whether speed was affected by age, sex and conformation measurements were investigated. The study was carried out in Iceland on 266 horses (180 mares and 86 stallions). Horse speed and distance ridden were recorded by global positioning system during the riding assessment in BEFT. Conformation measurements and scores for each gait were obtained from the official studbook Worldfengur. The range of speed in walk, slow tölt, tölt, trot, pace, canter and gallop was, respectively, 1.5-2.2, 3.2-5.5, 4.6-10.6, 4.5-8.6, 7.1-11.9, 5.8-9.8 and 7.9-13.5 m/s (n=149-248). Scores for all gaits were affected by speed of the gait, with speed explaining most variance in scores for pace (53%) and least in scores for slow tölt and walk (2 and 3%, respectively). Stallions were faster than mares in tölt, trot, pace and canter (P<0.05). Horses aged ≥7 years and 6-year-olds were faster in pace and canter than 4-year-olds (P<0.05). Horse conformation measurements most affected speed in pace and walk, which were elevated with increased height at withers, height at croup, body length and length of front legs (P<0.05). In conclusion, objective measurements of speed in the gaits of Icelandic horses shown in a BEFT were documented for the first time. The information can be used to formulate requirements for gaits in BEFT and in competition manuals. Objective measurements of speed should be used in future assessments of gaits in Icelandic horses in BEFT, and thus improve standardisation and genetic evaluation of breeding horses.

Aplikasi Pemosisi Lokal Berbasis Android Dengan Menggunakan GPS

INTI TALAFA ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yaman Khaeruzzaman
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Database Server ◽  
Global Positioning

Seiring dengan pesatnya kemajuan teknologi saat ini, kebutuhan manusia menjadi lebih beragam, termasuk kebutuhan akan informasi. Tidak hanya media informasinya yang semakin beragam, jenis informasi yang dibutuhkan juga semakin beragam, salah satunya adalah kebutuhan informasi akan posisi kita terhadap lingkungan sekitar. Untuk memenuhi kebutuhan itu sebuah sistem pemosisi diciptakan. Sistem pemosisi yang banyak digunakan saat ini cenderung berfokus pada lingkup ruang yang besar (global) padahal, dalam lingkup ruang yang lebih kecil (lokal) sebuah sistem pemosisi juga diperlukan, seperti di ruang-ruang terbuka umum (taman atau kebun), ataupun dalam sebuah bangunan. Sistem pemosisi lokal yang ada saat ini sering kali membutuhkan infrastruktur yang mahal dalam pembangunannya. Aplikasi Pemosisi Lokal Berbasis Android dengan Menggunakan GPS ini adalah sebuah aplikasi yang dibangun untuk memenuhi kebutuhan pengguna akan informasi lokasi dan posisi mereka terhadap lingkungan di sekitarnya dalam lingkup ruang yang lebih kecil (lokal) dengan memanfaatkan perangkat GPS (Global Positioning System) yang telah tertanam dalam perangkat smartphone Android agar infrastruktur yang dibutuhkan lebih efisien. Dalam implementasinya, Aplikasi Pemosisi Lokal ini bertindak sebagai klien dengan dukungan sebuah Database Server yang berfungsi sebagai media penyimpanan data serta sumber referensi informasi yang dapat diakses melalui jaringan internet sehingga tercipta sebuah sistem yang terintegrasi secara global. Kata kunci: aplikasi, informasi, pemosisi, GPS.

The Distribution of Hospitality Services in Uyo Urban, Nigeria

2018 ◽  
pp. 137-150
Author(s):  
Violet Bassey Eneyo
Keyword(s):  
Data Collection ◽  
Global Positioning System ◽  
Central Area ◽  
Positioning System ◽  
Nearest Neighbour ◽  
Global Positioning ◽  
Neighbour Analysis

This paper examines the distribution of hospitality services in Uyo Urban, Nigeria. GIS method was the primary tool used for data collection. A global positioning system (GPS) Garmin 60 model was used in tracking the location of 102 hospitality services in the study area. One hypothesis was stated and tested using the nearest neighbour analysis. The finding shows evidence of clustering of the various hospitality services. The tested hypothesis further indicated that hospitality services clustered in areas that guarantee a sustainable level of patronage to maximize profit. Thus, the hospitality services clustered in selected streets in the metropolis while limited numbers were found outside the city’s central area.

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