http://tees.openrepository.com:80/tees TeesRep captures, stores, indexes, preserves, and distributes digital research material. Fri, 04 May 2012 13:29:14 GMT 2012-05-04T13:29:14Z http://hdl.handle.net/10149/221970 Title: Even between-lap pacing despite high within-lap variation during mountain biking Authors: Martin, L. (Louise); Lambeth-Mansell, A. (Anneliese); Azevedo, L. B. (Liane); Holmes, L. A. (Lucy); Wright, R. (Rachel); St Clair Gibson, A. (Alan) Abstract: PURPOSE: Given the paucity of research on pacing strategies during competitive events, this study examined changes in dynamic high resolution performance parameters to analyse pacing profiles during a multiple-lap mountain bike race over variable terrain. METHODS: A Global Positioning System (GPS) unit (Garmin, Edge 305, USA) recorded velocity (m.s-1), distance (m), elevation (m) and heart rate at 1 Hz from six mountain bike riders (mean ± SD: age = 27.2 ± 5.0 yrs; stature = 176.8 ± 8.1 cm; mass = 76.3 ± 11.7 kg, VO2 max = 55.1 ± 6.0 mL.kg-1.min-1) competing in a multi-lap race. Lap-by-lap (inter-lap) pacing was analysed using a one-way ANOVA for mean time and mean velocity. Velocity data were averaged every 100 m and plotted against race distance and elevation to observe the presence of intra-lap variation. RESULTS: There was no significant difference in lap times (P = 0.99) or lap velocity (P = 0.65) across the 5 laps. Within each lap a high degree of oscillation in velocity was observed which broadly reflected changes in terrain, however high resolution data demonstrated additional non-monotonic variation not related to terrain. CONCLUSION: Participants adopted an even pace strategy across the 5 laps despite rapid adjustments in velocity during each lap. Whilst topographical and technical variations of the course accounted for some of the variability in velocity, the additional rapid adjustments in velocity may be associated with dynamic regulation of self-paced exercise. Thu, 16 Feb 2012 00:00:00 GMT http://hdl.handle.net/10149/221970 2012-02-16T00:00:00Z http://hdl.handle.net/10149/221959 Title: Current state of developing creep damage constitutive equation for 0.5Cr0.5Mo0.25V ferritic steel Authors: Xu, Q. H. (Qi); Xu, Q. (Qiang); Pan, Y. X. (Yong); Short, M. (Michael) Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10149/221959 2012-01-01T00:00:00Z http://hdl.handle.net/10149/221955 Title: Literature review on the development of computational software system for creep damage analysis for weldment Authors: Tan, F. (Feng); Xu, Q. (Qiang); Lu, Z. Y. (Zhong); Xu, D. (Donglai) Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10149/221955 2012-01-01T00:00:00Z http://hdl.handle.net/10149/221952 Title: The review of computational FE software for creep damage mechanics Authors: Liu, D. (Dezheng); Xu, Q. (Qiang); Lu, Z. Y. (Zhong); Xu, D. (Donglai) Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/10149/221952 2012-01-01T00:00:00Z