https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38246 Wed 18 Aug 2021 15:42:37 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24826 0.05) in HOT and HYP and only decreased in HH (-8%) compared with CON. Body mass (-2%), temperatures (+2-5%), and TS (+18%) were altered in HOT. Furthermore, SₐO₂ (-8%) and HR (+3%) were changed in HYP. Similar changes in body mass and temperatures, HR, TS, and SₐO₂ were evident in HH to HOT and HYP, however, blood lactate (p < 0.001) and plasma volume (p < 0.001) were only significantly altered in HH. Perceived exertion was elevated (p < 0.05) by 7% in all conditions compared with CON. Regression analysis identified that absolute TS and absolute rise in skin and estimated muscle temperature (r = 0.82, r = 0.84 r = 0.82, respectively; p < 0.05) predicted the hot-mediated-decrements in HOT. The hot, hypoxic, and hot-hypoxic environments impaired physical performance during iSPT. Future interventions should address the increases in TS and body temperatures, to attenuate these decrements on soccer performance.]]> Wed 11 Apr 2018 16:07:36 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33313 2max (P = 0.002) and push-ups_{1 min} (P = 0.004) were superior in selected under-16 players, and sprint times (P ≤ 0.045), push-ups_{1 min} (P < 0.001) and chin-ups_{1 min} (P = 0.013) were superior in selected under-18 players. Further, 10-m sprint (β = −7.706, standard error [SE] = 2.412), VO_2max (β = 0.168, SE = 0.052) and body mass (β = 0.071, SE = 0.023) significantly predicted selection (R² = 0.339) in under-16 players, while push-ups_{1 min} (β = 0.564, SE = 0.250), 10-m sprint (β = −68.477, SE = 28.107), body mass (β = 0.360, SE = 0.155) and chronological age (β = −3.577, SE = 1.720) significantly predicted selection (R² = 0.894) in under-18 players. These findings emphasise the importance of performance attributes in junior rugby league and indicate talent identification test batteries should be age-specific in older adolescent players.]]> Wed 10 Oct 2018 13:20:23 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33278 2max) and heart rate were measured. Prior to and immediately post CPET, lung function measures including Nitrogen Multiple Breath Washout (MBW) and spirometry were performed. Results: There were no significant between group differences in pre CPET lung function (P > 0.05) or maximal exercise capacity (VO_2max CPAM: 39.4mL·kg^-1·min^-1, Control: 40.5mL·kg^-1·min^-1). Post CPET, FEV₁ was significantly lower in the CPAM group, with two participants diagnosed subsequently with exercise induced bronchospasm based on post-CPET spirometry and follow-up clinical investigations. Conclusion: Early life lung resection for CPAM does not appear to have negative implications for exercise capacity later in childhood. Clinicians should be aware that dyspnoea following exercise may be due to asthma rather than residual effects of CPAM in these children.]]> Thu 09 Dec 2021 11:01:44 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31122 r = -.34 to .87, P < .05) between internal and external measures of TL and sRPE, with the strongest correlations (r ≥ .62) for GPS-derived measures for both playing positions. In batsmen, stepwise multiple-regression analysis revealed that 67.8% of the adjusted variance in sRPE could be explained by PlayerLoad and high-intensity distance (y = 27.43 + 0.81 PlayerLoad + 0.29 high-intensity distance). For medium-fast bowlers, 76.3% of the adjusted variance could be explained by total distance and mean heart rate (y = 101.82 + total distance 0.05 + HR_mean – 0.48). Conclusion: These results suggest that sRPE is a valid method of reporting TL among cricket batsmen and medium-fast bowlers. Position-specific responses are evident and should be considered when monitoring the TL of cricket players.]]> Sat 24 Mar 2018 08:44:41 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:15436 Sat 24 Mar 2018 08:20:10 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12334 -1 min^-1) performed four treadmill tests consisting of 20-min running at first ventilatory threshold followed by a run to exhaustion at V̇O₂ max velocity in four conditions: 10C° with CG, 10C° without CG, 32C° with CG, and 32C° without CG (randomised, counterbalanced order). Time to exhaustion (TTE), skin and rectal temperature, V̇O₂, heart rate and rating of perceived exertion (RPE) were compared between CG and non-CG conditions at each environmental temperature. TTE was not significantly different between the CG and non-CG conditions at 10C°(158 ± 74 vs. 148 ± 73 s) and 32C°(115 ± 40 vs. 97 ± 33 s); however, there was a small (0.15) and moderate effect size 0.48), respectively, suggestive of an improvement in TTE with CG. Lower limb skin temperature was 1.5C° higher at 10C° with CG (P]]> Sat 24 Mar 2018 08:15:53 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20726 Sat 24 Mar 2018 08:00:28 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20744 2t concentration were assessed. The experimental procedure was repeated with the remaining supplement after a 3-wk washout. Eight participants completed both supplementation trials. Results: NAC improved sprint performance during the cycle ergometer race simulation (P < 0.001, η_p² = 0.03). Supplementation with NAC also augmented postexercise plasma total antioxidant capacity (P = 0.005, η_p² = 0.19), reduced exercise-induced oxidative damage (plasma thiobarbituric acid-reactive substances, P = 0.002, η_p² = 0.22; urinary 15-isoprostane F_2t concentration, P = 0.010, η_p² = 0.431), attenuated inflammation (plasma interleukin 6, P = 0.002, η_p² = 0.22; monocyte chemotactic protein 1, P = 0.012, η_p² = 0.17), and increased postexercise nuclear factor κB activity (P < 0.001, η_p² = 0.21). Conclusion: Oral NAC supplementation improved cycling performance via an improved redox balance and promoted adaptive processes in well-trained athletes undergoing strenuous physical training.]]> Sat 24 Mar 2018 08:00:24 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18358 Sat 24 Mar 2018 07:52:40 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18357 0.05) were covered within positions between the four different scenarios. Between scenarios, the greatest mean speed, heart rate and blood lactate responses occurred when the rules were changed, resulting in increased movement patterns (P < 0.05), most notably for batsmen and wicketkeepers. In contrast, altering the playing field size or player number did not significantly influence (P > 0.05) these responses. These results suggest that the physical demands of cricket-specific training can be increased via rule variations including hit-and-run activities, more so than field size or player number.]]> Sat 24 Mar 2018 07:52:39 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19995 Sat 24 Mar 2018 07:50:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:26747 2max 4.1 ± 0.7 L/min, training experience 2.7 ± 1.2 y) and to establish the relationship between physiological variables (VO_2max, VO₂ kinetics, muscleoxygen kinetics, paddling efficiency) and sprint kayak performance. VO_2max, power at VO_2max, power:weight ratio, paddling efficiency, VO₂ at lactate threshold, and whole-body and muscle oxygen kinetics were determined on a kayak ergometer in the laboratory. Separately, on-water time trials (TT) were completed over 200 m and 1000 m. Large to nearly perfect (-.5 to-.9) inverse relationships were found between the physiological variables and on-water TT performance across both distances. Paddling efficiency and lactate threshold shared moderate to very large correlations (-.4 to-.7) with 200- and 1000-m performance. In addition, trivial to large correlations (-.11 to-.5) were observed between muscle-oxygenation parameters, muscle and whole-body oxygen kinetics, and performance. Multiple regression showed that 88% of the unadjusted variance for the 200-m TT performance was explained by VO_2max, peripheral muscle deoxygenation, and maximal aerobic power (P < .001), whereas 85% of the unadjusted variance in 1000-m TT performance was explained by VO_2max and deoxyhemoglobin (P < .001). The current findings show that well-trained junior sprint kayak athletes possess a high level of relative aerobic fitness and highlight the importance of the peripheral muscle metabolism for sprint kayak performance, particularly in 200-m races, where finalists and nonfinalists are separated by very small margins. Such data highlight the relative aerobic-fitness variables that can be used as benchmarks for talent-identification programs or monitoring longitudinal athlete development. However, such approaches need further investigation.]]> Sat 24 Mar 2018 07:24:48 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24469 0.05). The reliability for the majority of movement demands and physiological responses were moderate to high (CV: 5−17%; ICC: 0.48−1.00) within all playing positions. These results suggest that the physiological responses and movement characteristics of generic small-sided cricket games were consistent between sessions within respective playing positions.]]> Sat 24 Mar 2018 07:17:21 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13462 Mon 21 Oct 2013 11:06:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50303 Fri 28 Jul 2023 10:31:41 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39694 Fri 17 Jun 2022 16:14:05 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51744 0.05). Increasing loads resulted in significantly lower self-selected walking speed, greater stance time, and changes in all joint kinematics and kinetics across the gait cycle (p < 0.05). In conclusion, there were few differences between sexes in walking mechanics during overground load carriage. The changes identified in this study may inform training programs to increase load carriage performance.]]> Fri 15 Sep 2023 18:27:43 AEST ]]>