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Full-Text Articles in Medicine and Health Sciences
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 …