Martin, Louise and Lambeth-Mansell, Annie and Beretta-Azevedo, L. and Holmes, L.A. and Wright, R.L. and St Clair Gibson, Alan (2012) Even Between-Lap Pacing Despite High Within-Lap Variation During Mountain Biking. International Journal of Sports Physiology and Performance, 7 (3). pp. 261-270. ISSN 1555-0265
Martin_et_al_2012_even_between-lap_pacing_despite_high_within-lap_variation_during_mountain_biking.pdf - Published Version
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Purpose: Given the paucity of research on pacing strategies during competitive events, this study examined changes in dynamic high-resolution performance parameters to analyze 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), distance (m), elevation (m), and heart rate at 1 Hz from 6 mountain-bike riders (mean ± SD age = 27.2 ± 5.0 y, stature = 176.8 ± 8.1 cm, mass = 76.3 ± 11.7 kg, VO2max = 55.1 ± 6.0 mL · kg–1 . min–1) competing in a multilap race. Lap-by-lap (interlap) pacing was analyzed using a 1-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 intralap variation. Results: There was no significant difference in lap times (P = .99) or lap velocity (P = .65) across the 5 laps. Within each lap, a high degree of oscillation in velocity was observed, which broadly reflected changes in terrain, but high-resolution data demonstrated additional nonmonotonic variation not related to terrain. Conclusion: Participants adopted an even pace strategy across the 5 laps despite rapid adjustments in velocity during each lap. While 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.
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|Uncontrolled Keywords:||off-road cycling, multiple laps, terrain, teleoanticipation, self-paced exercise|
|Subjects:||Q Science > QP Physiology|
|Divisions:||Academic Departments > Institute of Sport and Exercise Science|
|Depositing User:||Annie Lambeth-Mansell|
|Date Deposited:||27 Sep 2012 13:10|
|Last Modified:||12 Dec 2014 11:14|
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