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Relationship between maximal power, time to power production and pedal rate in elite BMX riders a laboratory-based study

Rylands, L and Roberts, SJ and Hurst, HT and Bentley, I (2016) Relationship between maximal power, time to power production and pedal rate in elite BMX riders a laboratory-based study. Journal of Sports Sciences. ISSN 0264-0414

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Abstract

The aims of this study were to analyse the optimal cadence for peak power production and time to peak power in bicycle motocross (BMX) riders. Six male elite BMX riders volunteered for the study. Each rider completed 3 maximal sprints at a cadence of 80, 100, 120 and 140 revs · min−1 on a laboratory Schoberer Rad Messtechnik (SRM) cycle ergometer in isokinetic mode. The riders’ mean values for peak power and time of power production in all 3 tests were recorded. The BMX riders produced peak power (1105 ± 139 W) at 100 revs · min−1 with lower peak power produced at 80 revs · min−1 (1060 ± 69 W, (F(2,15) = 3.162; P = .266; η2 = 0.960), 120 revs · min−1 (1077 ± 141 W, (F(2,15) = 4.348; P = .203; η2 = 0.970) and 140 revs · min−1 (1046 ± 175 W, (F(2,15) = 12.350; P = 0.077; η2 = 0.989). The shortest time to power production was attained at 120 revs · min−1 in 2.5 ± 1.07 s. Whilst a cadence of 80 revs · min−1 (3.5 ± 0.8 s, (F(2,15) = 2.667; P = .284; η2 = 0.800) 100 revs · min−1 (3.00 ± 1.13 s, (F(2,15) = 24.832; P = .039; η2 = 0.974) and 140 revs · min−1 (3.50 ± 0.88 s, (F(2,15) = 44.167; P = .006; η2 = 0.967)) all recorded a longer time to peak power production. The results indicate that the optimal cadence for producing peak power output and reducing the time to peak power output are attained at comparatively low cadences for sprint cycling events. These findings could potentially inform strength and conditioning training to maximise dynamic force production and enable coaches to select optimal gear ratios.

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 1st August 2016, available online: http://www.tandfonline.com/10.1080/02640414.2016.1215491
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 1302 Curriculum And Pedagogy
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV561 Sports
Divisions: School of Sport Studies, Leisure and Nutrition
Publisher: Taylor & Francis
Date Deposited: 01 Mar 2017 12:39
Last Modified: 11 Sep 2017 00:31
DOI or Identification number: 10.1080/02640414.2016.1215491
URI: http://researchonline.ljmu.ac.uk/id/eprint/5738

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