scholarly journals Analysis of load and players’ effort in 4 vs 4 small-sided handball games in relation to court dimensions

Kinesiology ◽  
2016 ◽  
Vol 48 (2) ◽  
pp. 213-222
Author(s):  
Matteo Corvino ◽  
Dinko Vuleta ◽  
Marko Šibila
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Positioning System ◽  
The Third ◽  
Time Motion ◽  
Cyclic Movements ◽  
Global Positioning ◽  
Motion Video

The aim of the present study was to analyse load to which players were exposed to and effort they invested in 4vs4 small-sided handball games in relation to various court dimensions. Eight male amateur handball players participated in three eight-minute 4vs4 (plus goalkeepers) small-sided handball games. The three court dimensions were 12×24 m, 30×15 m and 32×16 m. Using Global Positioning System devices (SPI pro elite 15hz, GPSports), time-motion video analysis, and Borg’s scale for rating of perceived exertion (RPE), the following performance, physiological and psychological parameters were recorded: cyclic movements for distance covered, acyclic movements for the number of technical actions executed, heart rate, and RPE. Total distance travelled increased with the increase in court size (948.1±64.5, 1087.2±92.0 and 1079.8±90.6 on the 24×12 m, 30×15 m and 32×16 m court, respectively; p<.05). Distance covered by the players in four speed zones revealed the substantial difference between the games played on the 24×12 and 30×15m court in the first and third (p<.05; moderate ES) speed zone. On the 24×12 m court players covered more distance while moving in the first speed zone, but less distance when moving in the third speed zone (p<.05; moderate ES). On the 32×16 m court the players covered less distance while moving in the first speed zone, but they covered more distance by moving in the third speed zone (p<.05; moderate ES). There were no substantial differences found for the second and fourth speed zone cyclic movements and distances covered on all the three experimental court sizes. No statistical differences between the games played on various court dimensions were found in acyclic movements. No statistical differences were found in the analysis of heart rate. Further analysis of players’ self-evaluated effort confirmed the trend of heart rate values, showing no statistical differences in the RPE values among the three different court dimensions. Our findings indicate that changing court dimensions during 4vs4 small-sided handball games could influence load imposed on the players and their exertion.

Internal load in elite young soccer players during a whole season according to playing positions

2018 ◽  
Vol 7 (4) ◽  
pp. 36-41
Author(s):  
Daniel Castillo ◽  
Javier Raya-González
Keyword(s):  
Global Positioning System ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Soccer Players ◽  
Positioning System ◽  
Internal Load ◽  
Match Play ◽  
Weekly Training ◽  
Global Positioning ◽  
Load Monitoring

The aims of this study were 1) to compare the internal load, measured as session rating of perceived exertion (s-RPE), between training sessions and official matches among playing positions in young elite soccer players and 2) to analyze the s-RPE association between training and official match-play. Nineteen young elite soccer players who competed in the Spanish First Division Under-19 Championship participated in this study. Internal load was registered during 120 training sessions and during 30 official matches. Only the players who participated in all the weekly sessions and played at least 70 min were included in the further analysis. No significant differences (P > 0.05, ES = -0.57/0.62) among playing positions were found in the s-RPE registered by soccer players in training sessions, official matches nor in the total sessions. On the other side, higher s-RPE was observed during trainings in comparison to matches in each playing position (P < 0.001, ES = 5.51-30.77). However, no association was observed between training s-RPE and match s-RPE for the whole of the players (P = 0.60, r = 0.04), nor for each specific playing positions (P = 0.29-0.89, r = -0.11/0.16). These findings could be useful for coaches in order to plan the distribution of the weekly training load. Nonetheless, it is also suggested that internal load monitoring cannot be confidently used, in isolation, as a tool to detect differences in the match-play demands, attending to playing positions, in young soccer players. Thus, the use of both internal (i.e., s-RPE) and external (i.e., global positioning system measures) load is suggested to manage the training and match load and to prescribe the training sessions appropriately.

scholarly journals On Performance and Perceived Effort in Trail Runners Using Sensor Control to Generate Biosynchronous Music

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4528
Author(s):  
Duncan Williams ◽  
Bruno Fazenda ◽  
Victoria Williamson ◽  
György Fazekas
Keyword(s):  
Global Positioning System ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Positioning System ◽  
Wearable Sensor ◽  
Perceived Effort ◽  
Future Design ◽  
Global Positioning ◽  
Sensor Control ◽  
Improved Performance

Music has been shown to be capable of improving runners’ performance in treadmill and laboratory-based experiments. This paper evaluates a generative music system, namely HEARTBEATS, designed to create biosignal synchronous music in real-time according to an individual athlete’s heartrate or cadence (steps per minute). The tempo, melody, and timbral features of the generated music are modulated according to biosensor input from each runner using a combination of PPG (Photoplethysmography) and GPS (Global Positioning System) from a wearable sensor, synchronized via Bluetooth. We compare the relative performance of athletes listening to music with heartrate and cadence synchronous tempos, across a randomized trial (N = 54) on a trail course with 76 ft of elevation. Participants were instructed to continue until their self-reported perceived effort went beyond an 18 using the Borg rating of perceived exertion. We found that cadence-synchronous music improved performance and decreased perceived effort in male runners. For female runners, cadence synchronous music improved performance but it was heartrate synchronous music which significantly reduced perceived effort and allowed them to run the longest of all groups tested. This work has implications for the future design and implementation of novel portable music systems and in music-assisted coaching.

scholarly journals Emergency Smartwatch for Fisherman

2020 ◽  
Vol 6 (2) ◽  
pp. 77-80
Author(s):  
Saoud Hamidou ◽  
Mohamed Abdallah ◽  
Rawad Abdulghafor ◽  
Sharyar Wani
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
Mobile Application ◽  
Positioning System ◽  
The Third ◽  
Rescue Team ◽  
Global Positioning ◽  
Rate Sensor

This work is about designing a smartwatch that is used mostly by fishermen. The watch provides the location of the user using the global positioning system (GPS) and a panic button that he can use in case of emergency. It can record the heart rate by using a heart rate sensor. The paper  works with a software that is used by the appropriate authorities; they record the information provided by the smartwatch. The third part of the paper is a mobile application used by the rescue team; the application shows the location of the fisherman. This paper aims to help fishermen in case of emergency cases, they can be saved by the rescue team. Based on the heart rate sensor and the panic button provided by the smartwatch, the appropriate authorities can know when a fisherman needs help and send the rescue team.

Energy cost of cows' grazing activity: Use of the heart rate method and the Global Positioning System for direct field estimation1

2006 ◽  
Vol 84 (7) ◽  
pp. 1951-1967 ◽  
Author(s):  
A. Brosh ◽  
Z. Henkin ◽  
E. D. Ungar ◽  
A. Dolev ◽  
A. Orlov ◽  
...  
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
Energy Cost ◽  
Positioning System ◽  
Global Positioning ◽  
Rate Method

scholarly journals We know they train, but what do they do? Implications for coaches working with adolescent rugby union players

2017 ◽  
Vol 12 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Padraic J Phibbs ◽  
Ben Jones ◽  
Gregory AB Roe ◽  
Dale B Read ◽  
Joshua Darrall-Jones ◽  
...  
Keyword(s):  
Heart Rate ◽  
High Speed ◽  
Injury Risk ◽  
Perceived Exertion ◽  
Rugby Union ◽  
Rating Of Perceived Exertion ◽  
Limited Information ◽  
Positioning Systems ◽  
Global Positioning ◽  
School Club

Limited information is available regarding the training loads of adolescent rugby union players. One-hundred and seventy male players (age 16.1 ± 1.0 years) were recruited from 10 teams representing two age categories (under-16 and under-18) and three playing standards (school, club and academy). Global positioning systems, accelerometers, heart rate and session-rating of perceived exertion (s-RPE) methods were used to quantify mean session training loads. Session demands differed between age categories and playing standards. Under-18 academy players were exposed to the highest session training loads in terms of s-RPE (236 ± 42 AU), total distance (4176 ± 433 m), high speed running (1270 ± 288 m) and PlayerLoad™ (424 ± 56 AU). Schools players had the lowest session training loads in both respective age categories. Training loads and intensities increased with age and playing standard. Individual monitoring of training load is key to enable coaches to maximise player development and minimise injury risk.

scholarly journals Activity profiles in adolescent netball: A combination of global positioning system technology and time-motion analysis

2015 ◽  
Vol 10 (Special Issue 2) ◽  
Author(s):  
Low Chee Yong ◽  
Matthew James Wylde ◽  
Gabriel C.W. Choong ◽  
Dipna Lim-Prasad
Keyword(s):  
Motion Analysis ◽  
Global Positioning System ◽  
Positioning System ◽  
System Technology ◽  
Time Motion ◽  
Global Positioning

The content and load of preseason field-based training in a championship-winning professional rugby league team: A case study

2022 ◽  
pp. 174795412110648
Author(s):  
Matthew Fairbank ◽  
Jamie Highton ◽  
Matthew Daniels ◽  
Craig Twist
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
High Speed ◽  
Physiological Responses ◽  
Skill Training ◽  
Rugby League ◽  
Positioning System ◽  
Global Positioning ◽  
Metabolic Distance

This study reports on the content and periodisation of the preseason field-based training for a professional rugby league team. Thirty professional male rugby league players (26 ± 5 years, 180.9 ± 6.5 cm, 94 ± 9 kg) completed an 8-week preseason. Global positioning system devices and heart rate were used to monitor physical and physiological responses of different field-based training components (speed, conditioning, rugby skill and game-based training). Rugby skill training contributed the most to the total distance covered, conditioning was the greatest contributor to high-speed running (>15 km/h) and game-based training provided the greatest high metabolic distance (>20 W/kg) and overall external load. Game-based training provided the greatest time with heart rate ≥80% estimated maximum. The weekly preseason cycle had lower loads on Monday and Thursday whereas Tuesday and Friday produced the highest loads. The preseason described herein adopted a progressive overload comprising a weekly undulating cycle. This study emphasises how skill and games-based training contributes significantly to the overall load of a professional rugby league team's preseason with more traditional conditioning promoting high-speed running load and high metabolic load.

Accumulative Weekly External and Internal Load Relative to Match Load in Elite Male Youth Soccer Players

2021 ◽  
pp. 1-6
Author(s):  
Vicente de Dios-Álvarez ◽  
Pello Alkain ◽  
Julen Castellano ◽  
Ezequiel Rey
Keyword(s):  
Global Positioning System ◽  
High Speed ◽  
Perceived Exertion ◽  
Soccer Players ◽  
Positioning System ◽  
Internal Load ◽  
Male Youth ◽  
Youth Soccer ◽  
Total Distance ◽  
Global Positioning

Purpose: The aim of this study was 2-fold: (1) to assess and compare the external and internal load of elite young soccer players during competitive microcycles and (2) to describe the training/match ratios (TMr) in elite male youth soccer players. Method: Twenty-one youth soccer players were monitored using a 10-Hz global positioning system. Total distance covered, running distance (RD), high-speed RD, sprint distance, number of accelerations and decelerations, player load, and rated perceived exertion were recorded during training sessions and matches. The TMr was calculated for each load measure. All variables were also normalized dividing the load per minute of activity. Results: The RD, high-speed running, and sprint distance were higher 3 days before the match and 2 days before match compared with the rest of the training sessions. However, accelerations, decelerations, and player load were higher 4 days before match than other sessions. Besides this, the TMr of RD, high-speed running, and sprint distance were associated with lower values than the TMr of total distance covered, accelerations, decelerations, and player load. The match constituted the highest load during competitive microcycle. Conclusions: The present data support the idea that youth soccer coaches and practitioners must consider relative training load according to match demands to better manage and evaluate player periodization.

WORKLOADS OF YOUNG SOCCER PLAYERS

2018 ◽  
Vol 4 ◽  
pp. 199-210
Author(s):  
Karol Pilis ◽  
Krzysztof Stec ◽  
Zbigniew Witkowski ◽  
Arkadiusz Stanula ◽  
Tomasz Gabrys ◽  
...  
Keyword(s):  
Heart Rate ◽  
Global Positioning System ◽  
The Body ◽  
Soccer Players ◽  
Positioning System ◽  
Warm Up ◽  
Average Speed ◽  
Post Hoc Analysis ◽  
Global Positioning ◽  
Post Hoc

The purpose of this study is to present a comparison of the workload demonstrated by young soccer players during the phases of warm-up (WU), first half (FH) and second half (SH) of a league match. Eleven young Polish soccer players took part in this research, playing a league match after completing the WU. During the WU, FH and SH of the match the following variables were recorded: total distance run, maximal and average speed achieved during the runs, number of sprints, distances run in the different speed zones, durations of increased heart rate (HR) in specific ranges, and the maximal, mean and minimal HR. The variables were recorded by means of the Global Positioning System (GPS). The research showed that there were significant differences between the WU, FH and SH in the total distances run (F=30.107, p<0.001), the average speed achieved during the runs (F=37.731, p<0.001), the distances run at different speeds (p<0.001), the duration of increased HR in specific zones, and HRmean (p=0.002) and HRmin (p<0.001). Post hoc analysis confirmed that, for the majority of the analyzed parameters, the WU provided a smaller load for the body than did the FH or SH, the intensity of which in some part was higher than that encountered at the anaerobic threshold. In conclusion, it has been shown that the WU and the two halves of the match load the body to varying degrees, the former doing so to a lesser extent than FH or SH.

A Remote Vision Guidance System for Visually Impaired Pedestrians

2006 ◽  
Vol 59 (3) ◽  
pp. 497-504 ◽  
Author(s):  
Z. Hunaiti ◽  
V. Garaj ◽  
W. Balachandran
Keyword(s):  
Global Positioning System ◽  
Mobile Networks ◽  
Visually Impaired ◽  
Guidance System ◽  
Geographical Information ◽  
Positioning System ◽  
The Third ◽  
Vision Guidance ◽  
Global Positioning ◽  
Technological Platform

This paper presents research and development work on a novel system with a view of developing a navigation system for the guidance of visually impaired pedestrians. The prime aim of the new developed system is to enhance the mobility of visually impaired pedestrians using remote guidance provided by sighted person. However, the system can be used in many other applications. The system implementation is based on the integration of the Global Positioning System (GPS), Geographical Information System (GIS) database and a remote vision facility over the third generation (3G) of mobile networks, providing a technological platform enabling visually impaired pedestrians to be guided remotely by a sighted guide.

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