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Articles 1 - 18 of 18
Full-Text Articles in Medicine and Health Sciences
The Effect Of Previous Wingate Performance Using One Body Region On Subsequent Wingate Performance Using A Different Body Region, Leonie Harvey, Matthew Bousson, Chris Mclellan, Dale Lovell
The Effect Of Previous Wingate Performance Using One Body Region On Subsequent Wingate Performance Using A Different Body Region, Leonie Harvey, Matthew Bousson, Chris Mclellan, Dale Lovell
Chris McLellan
The 30 second Wingate Anaerobic Test (WAnT) is the gold standard measure of anaerobic performance. The present investigation aimed to determine if a previous WAnT using one body region significantly affected a subsequent WAnT using a different body region. Twelve male university students (n = 12, 23 ± 2 years, 84 ± 16.1 kg, 178.5 ± 7.4 cm) volunteered to complete two repeated WAnT protocols (either lower body WAnT followed by an upper body WAnT or vice versa) on two separate testing occasions. The upper body WAnT was conducted on a modified electromagnetically braked cycle ergometer using a flywheel braking …
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 …
Reliability Of A Cycle Ergometer Peak Power Test In Running-Based Team Sport Athletes A Technical Report, George Wehbe, Tim Gabbett, Timothy Hartwig, Chris Mclellan
Reliability Of A Cycle Ergometer Peak Power Test In Running-Based Team Sport Athletes A Technical Report, George Wehbe, Tim Gabbett, Timothy Hartwig, Chris Mclellan
Chris McLellan
Extract: Given the importance of ensuring athletes train and compete in a nonfatigued state, reliable tests are required to regularly monitor fatigue. The purpose of this study was to investigate the reliability of a cycle ergometer to measure peak power during short maximal sprint cycle efforts in running-based team sport athletes. Fourteen professional male Australian rules footballers performed a sprint cycle protocol during 3 separate trials, with each trial separated by 7 days.
Validity And Reliability Of A Novel Salivary Immunoassay For Individual Profiling In Applied Sports Science, Sam Coad, Chris Mclellan, Tim Whitehouse, Bon Gray
Validity And Reliability Of A Novel Salivary Immunoassay For Individual Profiling In Applied Sports Science, Sam Coad, Chris Mclellan, Tim Whitehouse, Bon Gray
Chris McLellan
The aim of this study was to examine the validity and reliability of a novel immunoassay, developed to assess salivary Immunoglobulin A (s-IgA). Validity and reliability of the Individual Profiling Lateral Flow Device (IPRO LFD) for s-IgA concentrations ([s-IgA]) was assessed in males (n = 12) and females (n =13) who were involved in recreational activities. Reliability of the IPRO LFD method was assessed by comparing [s-IgA] of two saliva samples collected concurrently, while validity was assessed by comparing with an enzyme-linked immunosorbent assay (ELISA) method. The IPRO LFD had a strong positive correlation (r = 0.93, p < 0.001), with no difference in [s-IgA] compared with the ELISA. The IPRO LFD was considered reliable (ICC r = 0.89, p < 0.001 and CV = 9.40 %) for measures of [s-IgA]. We concluded that the IPRO LFD method may be a substitute to the ELISA method for measurements of [s-IgA].
Neuromuscular Responses To Impact And Collision During Elite Rugby League Match Play, Chris Mclellan, Dale Lovell
Neuromuscular Responses To Impact And Collision During Elite Rugby League Match Play, Chris Mclellan, Dale Lovell
Chris McLellan
The purpose of this study was to investigate the relationship between the prematch and short-term postmatch neuromuscular responses to the intensity, number, and distribution of impacts associated with collisions during elite Rugby League match play. Twenty-two elite male Rugby League players were monitored during 8 regular season competition matches using portable global positioning system (GPS) technology. The intensity, number, and distribution of impact forces experienced by players during match play were recorded using integrated accelerometry. Peak rate of force development (PRFD), peak power (PP), and peak force (PF) were measured during a countermovement jump on a force plate 24 hours …
The Contribution Of Energy Systems During The Upper Body Wingate Anaerobic Test, Dale Lovell, Ava Kerr, Aaron Wiegand, Colin Solomon, Leonie Harvey, Chris Mclellan
The Contribution Of Energy Systems During The Upper Body Wingate Anaerobic Test, Dale Lovell, Ava Kerr, Aaron Wiegand, Colin Solomon, Leonie Harvey, Chris Mclellan
Chris McLellan
The purpose of this study was to measure the contribution of the aerobic, anaerobic lactic, and alactic systems during an upper body Wingate Anaerobic test (WAnT). Oxygen uptake and blood lactate were measured before, during, and after the WAnT and body composition analyzed by dual-energy X-ray absorptiometry. The contribution of the energy systems was 11.4% ± 1.4%, 60.3% ± 5.6%, and 28.3% ± 4.9% for the aerobic, anaerobic lactic, and alactic systems, respectively.
Performance Analysis Of Professional, Semiprofessional, And Junior Elite Rugby League Match-Play Using Global Positioning Systems, Chris Mclellan, Dale Lovell
Performance Analysis Of Professional, Semiprofessional, And Junior Elite Rugby League Match-Play Using Global Positioning Systems, Chris Mclellan, Dale Lovell
Chris McLellan
The aim of the present study was to examine the positional differences in physical performance measures of professional, semiprofessional, and junior elite rugby league match-play using portable Global Positioning Systems (GPSs). Twelve professional, 12 semiprofessional, and 18 junior elite male rugby league players were monitored during 5 regular-season competition matches using portable GPS software. The mean total distance traveled during professional (8,371 ± 897 m) and semiprofessional (7,277 ± 734 m) match-play was significantly (p < 0.05) greater than that traveled during elite junior (4,646 ± 978 m) match-play. Position-specific total distance traveled and distance traveled per minute of playing time were significantly (p < 0.05) less for junior elite backs (5,768 ± 765 m; 74 ± 11 m·min-1) and forwards (4,774 ± 564 m; 82 ± 5 m·min-1) in comparison to those in professional (backs: 8,158 ± 673 m; 101 ± 8 m·min-1 and forwards: 8,442 ± 812 m; 98 ± 12 m·min-1) and semiprofessional (backs: 7,505 ± 765 m; 94 ± 8 m·min-1 and forwards: 6,701 ± 678 m; 89 ± 8 m·min-1) match-play. Maximum running speed, maximum sprints, and total sprint distance traveled by professional players were all significantly (p < 0.05) greater than those traveled by junior elite players but not semiprofessional players during match-play. Professional backs and forwards performed significantly (p < 0.05) more maximum sprints and traveled greater total distance during match-play in comparison to semiprofessional and junior elite players. The present findings demonstrate minimal differences in the physical performance measures of professional and semiprofessional rugby league match-play. The position-specific performance characteristics of junior elite match-play indicate that current junior elite player-development pathways may not provide adequate preparation for players transitioning into professional competition.
The Aerobic Performance Of Trained And Untrained Handcyclists With Spinal Cord Injury, Dale Lovell, Darron Shields, Belinda Beck, Ross Cuneo, Chris Mclellan
The Aerobic Performance Of Trained And Untrained Handcyclists With Spinal Cord Injury, Dale Lovell, Darron Shields, Belinda Beck, Ross Cuneo, Chris Mclellan
Chris McLellan
The purpose of this study was to compare the cardiorespiratory response and mechanical efficiency (ME) of highly trained spinal cord injured (SCI) handcyclists with untrained SCI men. Ten trained handcyclists (≥2 years training) and ten untrained but physically active SCI men completed an incremental exercise test to exhaustion and a sub-maximal test (50 and 80 W) on an electromagnetically braked arm ergometer. The trained participants completed a questionnaire on their training and race performance over the past year, including average training volume (in kilometers), number of training sessions per week and best 20-km time trial. The trained SCI men had …
Effects Of Long-Term Surfing On Bone Health In Mature-Aged Males, Michael Climstein, Zach Pollard, James Furness, Joe Walsh, Chris Mclellan, Jarrod Meerkin
Effects Of Long-Term Surfing On Bone Health In Mature-Aged Males, Michael Climstein, Zach Pollard, James Furness, Joe Walsh, Chris Mclellan, Jarrod Meerkin
Chris McLellan
Low mechanical loading aquatic activities such as swimming and scuba diving have identified decreased bone mineral density (BMD); however, the effects of long-term surfing on bone health remains uninvestigated. This was a cross-sectional observational study with two groups: surfers (n = 11) with 40 years surfing experience and age and gender-matched sedentary controls (n = 10). Data collected included physical activity questionnaires, biomarkers, BMD, bone mineral content, and body composition. Surfers demonstrated a significantly (p
Biochemical And Endocrine Responses To Impact And Collision During Elite Rugby League Match Play, Christopher Mclellan, Dale Lovell, Gregory Gass
Biochemical And Endocrine Responses To Impact And Collision During Elite Rugby League Match Play, Christopher Mclellan, Dale Lovell, Gregory Gass
Chris McLellan
The purpose of this study was to investigate the relationship between the prematch and short-term postmatch biochemical and endocrine responses to the intensity, number, and distribution of impacts associated with collisions during elite Rugby League match play. Seventeen elite male Rugby League players each provided blood and saliva samples 24 hours prematch, 30 minutes prematch, 30 minutes postmatch, and then at 24-hour intervals for a period of 5 days postmatch to determine plasma creatine kinase concentration ([CK]) and salivary cortisol concentration ([sCort]). The intensity, number, and distribution of impact forces experienced by players during match play were recorded using portable …
The Role Of Rate Of Force Development On Vertical Jump Performance, Christopher Mclellan, Dale Lovell, Gregory Gass
The Role Of Rate Of Force Development On Vertical Jump Performance, Christopher Mclellan, Dale Lovell, Gregory Gass
Chris McLellan
The purpose of this study was to examine a) the relationship between rate of force development (RFD) and vertical jump (VJ) performance during a counter movement jump (CMJ), and b) the reliability of RFD recorded during the CMJ and squat jump (SJ) forms of the VJ. Twenty-three physically active men aged 23 ± 3.9 years participated in the study. Subjects completed 3 unloaded CMJ and 3 unloaded SJ in random order on a force plate. The RFD was measured during CMJ and SJ movements with vertical jump displacement (VJD) measured simultaneously during the CMJ only. Subjects incorporated arm swing to …
Markers Of Postmatch Fatigue In Professional Rugby League Players, Christ Mclellan, Dale Lovell, Gregory Gass
Markers Of Postmatch Fatigue In Professional Rugby League Players, Christ Mclellan, Dale Lovell, Gregory Gass
Chris McLellan
The aim of the present study was to identify neuromuscular, biochemical, and endocrine markers of fatigue after Rugby League match play. Seventeen elite Rugby League players were monitored for a single match. Peak rate of force development (PRFD), peak power (PP), and peak force (PF) were measured during a countermovement jump (CMJ) on a force plate pre and postmatch play. Saliva and blood samples were collected 24 hours prematch, 30 minutes prematch, 30 minutes postmatch, and then at 24-hour intervals for a period of 120 hours to determine plasma creatine kinase concentration ([CK]) and salivary cortisol concentration ([sCort]). There were …
Performance Analysis Of Elite Rugby League Match Play Using Global Positioning Systems, Christopher Mclellan, Dale Lovell, Gregory Gass
Performance Analysis Of Elite Rugby League Match Play Using Global Positioning Systems, Christopher Mclellan, Dale Lovell, Gregory Gass
Chris McLellan
The aim of this study was (a) to examine the physiological demands of competitive Rugby League match play using portable Global Positioning Systems (GPSs) to monitor players' movement patterns and heart rate (HR) and (b) examine positional comparisons to determine if players' physiological requirements are influenced by their playing position during Rugby League match play. Twenty-two elite male Rugby League players were monitored during 5 regular season competition matches using portable GPS software. There was no difference in the total distance traveled between backs (5,573 ± 1,128 m) and forwards (4,982 ± 1,185 m) during match play. Backs and forwards …
Does Upper Body Strength And Power Influence Upper Body Wingate Performance In Men And Women?, D. Lovell, D. Mason, E. Delphinus, A. Eagles, S. Shewring, Christopher Mclellan
Does Upper Body Strength And Power Influence Upper Body Wingate Performance In Men And Women?, D. Lovell, D. Mason, E. Delphinus, A. Eagles, S. Shewring, Christopher Mclellan
Chris McLellan
The aim of this study was to determine the influence of muscular strength and power on upper body Wingate performance in men and women. Muscular strength (1 repetition maximum bench press), muscular power (bench throws) and upper body anaerobic performance (Wingate Anaerobic Test (WAnT)) was assessed in 24 men and 16 women. Men had signifi cantly ( P < 0.001) higher absolute and relative peak and mean power and blood lactate concentration during the WAnT compared to their female counterparts. Men also produced signifi cantly ( P < 0.001) higher strength and absolute and relative peak and mean power during the bench …
Do Compression Garments Enhance The Active Recovery Process After High-Intensity Running?, Dale Lovell, Dale Mason, Elias Delphinus, Christopher Mclellan
Do Compression Garments Enhance The Active Recovery Process After High-Intensity Running?, Dale Lovell, Dale Mason, Elias Delphinus, Christopher Mclellan
Chris McLellan
This study examined the effect of wearing waist-to-ankle compression garments (CGs) on active recovery after moderate- and high-intensity submaximal treadmill running. Twenty-five male semiprofessional rugby league players performed two 30-minute treadmill runs comprising of six 5-minute stages at 6 km.hˉ¹, 10 km.hˉ¹, approximately 85% VO2max, 6 km.hˉ¹ as a recovery stage followed by approximately 85% VO2max and 6 km.hˉ¹ wearing either CGs or regular running shorts in a randomized counterbalanced order with each person acting as his own control. All stages were followed by 30 seconds of rest during which a blood sample was collected to determine blood pH and …
A Comparison Of Asynchronous And Synchronous Arm Cranking During The Wingate Test, Dale Lovell, Dale Mason, Elias Delphinus, Christopher Mclellan
A Comparison Of Asynchronous And Synchronous Arm Cranking During The Wingate Test, Dale Lovell, Dale Mason, Elias Delphinus, Christopher Mclellan
Chris McLellan
Purpose: The aim of this study was to compare asynchronous (ASY) arm cranking (cranks at 180° relative to each other) with synchronous (SYN) arm cranking (parallel crank setting) during the 30 s Wingate anaerobic test.
Methods: Thirty-two physically active men (aged 22.1 ± 2.4 y) completed two Wingate tests (one ASY and one SYN) separated by 4 d in a randomized counterbalanced order. The Wingate tests were completed on a modified electromagnetically braked cycle ergometer. Performance measures assessed during the two tests include peak power, mean power, minimum power, time to peak power, rate to fatigue and maximum …