scholarly journals Global Positioning System Monitoring of Selected Physical Demands of NCAA Division I Football Players During Games

2019 ◽  
Vol 33 (5) ◽  
pp. 1185-1191 ◽  
Author(s):  
Garrett E. Bayliff ◽  
Bert H. Jacobson ◽  
Masoud Moghaddam ◽  
Carlos Estrada
Keyword(s):  
Global Positioning System ◽  
Ncaa Division I ◽  
Division I ◽  
Football Players ◽  
Positioning System ◽  
System Monitoring ◽  
Physical Demands ◽  
Global Positioning ◽  
Division I Football

scholarly journals Moderate Altitude Affects High Intensity Running Performance in a Collegiate Women’s Soccer Game

2015 ◽  
Vol 47 (1) ◽  
pp. 147-154 ◽  
Author(s):  
Jonathan D. Bohner ◽  
Jay R. Hoffman ◽  
William. P. McCormack ◽  
Tyler C. Scanlon ◽  
Jeremy R. Townsend ◽  
...  
Keyword(s):  
Global Positioning System ◽  
Ncaa Division I ◽  
High Intensity ◽  
Division I ◽  
Soccer Players ◽  
Positioning System ◽  
Moderate Altitude ◽  
Soccer Game ◽  
Global Positioning ◽  
Game Activity

AbstractThe effect of altitude on soccer game activity profiles was retrospectively examined in six NCAA Division I female soccer players. Comparisons were made between two matches played at sea level (SL) and one match played at a moderate altitude (1839 m). A 10-Hz global positioning system device was used to measure distance and velocity. The rate of total distance capacity (TDC) and high intensity running (HIR) as well as percent of time at HIR were evaluated. Significant differences were seen in the distance rate (120.55 ± 8.26 m·min-1 versus 105.77 ± 10.19 m·min-1) and the HIR rate (27.65 ± 9.25 m·min-1 versus 25.07 ± 7.66 m·min-1) between SL and altitude, respectively. The percent of time at HIR was not significantly different (p = 0.064), yet tended to be greater at SL (10.4 ± 3.3%) than at altitude (9.1 ± 2.2%). Results indicate that teams residing at SL and competing at a moderate altitude may have a reduced ability in distance covered and a high intensity run rate.

scholarly journals Physical Demands of Top-Class Soccer Friendly Matches in Relation to a Playing Position Using Global Positioning System Technology

2015 ◽  
Vol 47 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Javier Mallo ◽  
Esteban Mena ◽  
Fabio Nevado ◽  
Víctor Paredes
Keyword(s):  
Global Positioning System ◽  
High Intensity ◽  
Positioning System ◽  
Physical Demands ◽  
Gps Technology ◽  
Total Distance ◽  
Professional Soccer ◽  
Global Positioning ◽  
Rate Profile ◽  
Very High

AbstractThe aim of this study was to examine the physical demands imposed on professional soccer players during 11-a-side friendly matches in relation to their playing position, using global positioning system (GPS) technology. One hundred and eleven match performances of a Spanish “La Liga” team during the 2010-11 and 2011-12 pre-seasons were selected for analysis. The activities of the players were monitored using GPS technology with a sampling frequency of 1 Hz. Total distance covered, distance in different speed categories, accelerations, and heart rate responses were analyzed in relation to five different playing positions: central defenders (n=23), full-backs (n=20), central midfielders (n=22), wide midfielders (n=26), and forwards (n=20). Distance covered during a match averaged 10.8 km, with wide and central midfielders covering the greatest total distance. Specifically, wide midfielders covered the greatest distances by very high-intensity running (>19.8 km·h-1) and central midfielders by jogging and running (7.2-19.7 km·h-1). On the other hand, central defenders covered the least total distance and at high intensity, although carried out more (p<0.05-0.01) accelerations than forwards, wide midfielders, and fullbacks. The work rate profile of the players obtained with the GPS was very similar to that obtained with semi-automatic image technologies. However, when comparing results from this study with data available in the literature, important differences were detected in the amount of distance covered by sprinting, which suggests that caution should be taken when comparing data obtained with the GPS with other motion analysis systems, especially regarding high-intensity activities.

scholarly journals In-match physical demands on elite Japanese rugby union players using a global positioning system

2020 ◽  
Vol 6 (1) ◽  
pp. e000659 ◽  
Author(s):  
Hayato Yamamoto ◽  
Masanori Takemura ◽  
Junta Iguchi ◽  
Misato Tachibana ◽  
Junzo Tsujita ◽  
...  
Keyword(s):  
Global Positioning System ◽  
High Velocity ◽  
Training Programme ◽  
Rugby Union ◽  
Study Data ◽  
Positioning System ◽  
Specific Training ◽  
Physical Demands ◽  
Global Positioning ◽  
Training Programmes

ObjectivesOur aim of this study was to quantify the physical demands of elite rugby union players by each position as a step towards designing position-specific training programme using a Global Positioning System/accelerometer system.MethodsThis study was performed as a retrospective observational study. Data were obtained from 45 official matches. The sample size used for the analysis was 298. The per-match total distances, accelerations and impacts were calculated and statistically compared for the forwards and backs and for individual positions.ResultsTotal distances for the forwards and backs were 5731.1±507.8 and 6392.1±646.8 m, respectively. The high-velocity running distances (>18.0 km/hour) covered by the forwards and backs were 317.4±136.9 and 715.0±242.9 m, respectively. The number of accelerations (>1.5 m/s2) for the forwards and backs were 76.3±18.9 and 100.8±19.6 times, respectively, and the number of high impacts (>10 g) were 48.0±46.9 and 35.6±28.3 times for the forwards and backs, respectively. All characteristics were significantly different between the forwards and backs (p<0.05). The per-position characteristics were also calculated. Within the backs, scrum half (SH) and wingers (WTBs) covered high-velocity running significantly higher distance than fly-half (SH d=2.571, WTBs d=1.556) and centres (SH d=1.299, WTBs d=0.685) (p<0.05).ConclusionBy clarifying the physical demands according to the positions, it will be possible to create optimised position-specific training programmes.

Prevalence of Metabolic Syndrome Risk Factors in High School and NCAA Division I Football Players

2013 ◽  
Vol 27 (7) ◽  
pp. 1749-1757 ◽  
Author(s):  
Gary D. Steffes ◽  
Alex E. Megura ◽  
James Adams ◽  
Randal P. Claytor ◽  
Rose M. Ward ◽  
...  
Keyword(s):  
Risk Factors ◽  
High School ◽  
Metabolic Syndrome ◽  
Ncaa Division I ◽  
Division I ◽  
Football Players ◽  
Division I Football

Examining Work Output in NCAA Division I Football Players During Pre-season Training in the Heat

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 886
Author(s):  
Julie K. DeMartini ◽  
Jessica L. Martschinske ◽  
Douglas J. Casa ◽  
Ollie Jay ◽  
Rebecca M. Lopez ◽  
...  
Keyword(s):  
Ncaa Division I ◽  
Division I ◽  
Football Players ◽  
Work Output ◽  
Division I Football

SWEAT AND SODIUM LOSSES IN NCAA DIVISION I FOOTBALL PLAYERS WITH A HISTORY OF WHOLE-BODY MUSCLE CRAMPING.

2003 ◽  
Vol 35 (Supplement 1) ◽  
pp. S48 ◽  
Author(s):  
J R. Stofan ◽  
J J. Zachwieja ◽  
C A. Horswill ◽  
M Lacambra ◽  
R Murray ◽  
...  
Keyword(s):  
Ncaa Division I ◽  
Division I ◽  
Whole Body ◽  
Football Players ◽  
Body Muscle ◽  
History Of ◽  
Division I Football

scholarly journals The Evolving Treatment Patterns of NCAA Division I Football Players by Orthopaedic Team Physicians Over the Past Decade, 2008-2016

2018 ◽  
Vol 10 (3) ◽  
pp. 234-243 ◽  
Author(s):  
Trevor J. Carver ◽  
John B. Schrock ◽  
Matthew J. Kraeutler ◽  
Eric C. McCarty
Keyword(s):  
Ncaa Division I ◽  
Cruciate Ligament ◽  
Treatment Patterns ◽  
Division I ◽  
Treatment Preferences ◽  
Football Players ◽  
Single Bundle ◽  
Shoulder Stabilization ◽  
Level Of Evidence ◽  
Division I Football

Background: Previous studies have analyzed the treatment patterns used to manage injuries in National Collegiate Athletic Association (NCAA) Division I football players. Hypothesis: Treatment patterns used to manage injuries in NCAA Division I football players will have changed over the study period. Study Design: Descriptive epidemiology study. Level of Evidence: Level 5. Methods: The head orthopaedic team physicians for all 128 NCAA Division I football teams were asked to complete a survey containing questions regarding experience as team physician, medical coverage of the team, reimbursement issues, and treatment preferences for some of the most common injuries occurring in football players. Responses from the current survey were compared with responses from the same survey sent to NCAA Division I team physicians in 2008. Results: Responses were received from 111 (111/119, 93%) NCAA Division I orthopaedic team physicians in 2008 and 115 (115/128, 90%) orthopaedic team physicians between April 2016 and April 2017. The proportion of team physicians who prefer a patellar tendon autograft for primary anterior cruciate ligament reconstruction (ACLR) increased from 67% in 2008 to 83% in 2016 ( P < 0.001). The proportion of team physicians who perform anterior shoulder stabilization arthroscopically increased from 69% in 2008 to 93% in 2016 ( P < 0.0001). Of team physicians who perform surgery for grade III posterior cruciate ligament (PCL) injuries, the proportion who use the arthroscopic single-bundle technique increased from 49% in 2008 to 83% in 2016 ( P < 0.0001). The proportion of team physicians who use Toradol injections prior to a game to help with nagging injuries decreased from 62% in 2008 to 26% in 2016 ( P < 0.0001). Conclusion: Orthopaedic physicians changed their injury treatment preferences for NCAA Division I football players over the study period. In particular, physicians have changed their preferred techniques for ACLR, anterior shoulder stabilization, and PCL reconstruction. Physicians have also become more conservative with pregame Toradol injections. Clinical Relevance: These opinions may help guide treatment decisions and lead to better care of all athletes.

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