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A Clustered Repeated-Sprint Running Protocol For Team-Sport Athletes Performed In Normobaric Hypoxia, Jaime Morrison, Chris Mclellan, Clare Minahan
A Clustered Repeated-Sprint Running Protocol For Team-Sport Athletes Performed In Normobaric Hypoxia, Jaime Morrison, Chris Mclellan, Clare Minahan
Chris McLellan
The present study compared the performance (peak speed, distance, and acceleration) of ten amateur team-sport athletes during a clustered (i.e., multiple sets) repeated-sprint protocol, (4 sets of 4, 4-s running sprints; i.e., RSR444) in normobaric normoxia (FiO2 = 0.209; i.e., RSN) with normobaric hypoxia (FiO2 = 0.140; i.e., RSH). Subjects completed two separate trials (i. RSN, ii. RSH; randomised order) between 48 h and 72 h apart on a non-motorized treadmill. In addition to performance, we examined blood lactate concentration [La-] and arterial oxygen saturation (SpO2) before, during, and after the RSR444. While there were no differences in peak speed …
Physical Demands And Salivary Immunoglobulin A Responses Of Elite Australian Rules Football Athletes To Match Play, Sam Coad, Bon Gray, George Wehbe, Christopher Mclellan
Physical Demands And Salivary Immunoglobulin A Responses Of Elite Australian Rules Football Athletes To Match Play, Sam Coad, Bon Gray, George Wehbe, Christopher Mclellan
Chris McLellan
Purpose: To examine the response or pre- and postmatch salivary immunoglobulin A concentration ([s-IgA]) to Australian Football League (AFL) match play and investigate the acute and cumulative influence of player workload and postmatch [s-IgA] after repeated participation in AFL match play. Methods: Eleven elite AFL athletes (21.8 ± 2.4 y, 186.9 ± 7.9 cm, 87.4 ± 7.5 kg) were monitored throughout 3 matches during the preseason that were separated by 7 d. Saliva samples were collected across each AFL match at 24 h and 1 h prematch and 1, 12, 36, and 60 h postmatch to determine [s-IgA]. Global positioning …
Quantification Of Competitive Game Demands Of Ncaa Division I College Football Players Using Global Positioning Systems, Aaron Wellman, Sam Coad, Grant Goulet, Christopher Mclellan
Quantification Of Competitive Game Demands Of Ncaa Division I College Football Players Using Global Positioning Systems, Aaron Wellman, Sam Coad, Grant Goulet, Christopher Mclellan
Chris McLellan
The aim of the present study was to examine the competitive physiological movement demands of National Collegiate Athletic Association (NCAA) Division I college football players using portable global positioning system (GPS) technology during games and to examine positional groups within offensive and defensive teams, to determine if a player's physiological requirements during games are influenced by playing position. Thirty-three NCAA Division I Football Bowl Subdivision football players were monitored using GPS receivers with integrated accelerometers (GPSports) during 12 regular season games throughout the 2014 season. Individual data sets (n 295) from players were divided into offensive and defensive teams and …