Validity and Reliability of the PowerTap P1 Pedals Power Meter.
To validate the new PowerTap P1® pedals power meter (PP1), thirty-three cyclists performed 12 randomized and counterbalanced graded exercise tests (100--500 W), at 70, 85 and 100 rev⋅min-1 cadences, in seated and standing positions. A scientific SRM system and a pair of PP1 pedals continuously recor...
| Publicado en: | Journal of Sports Science & Medicine Vol. 17; no. 2; pp. 305 - 312 |
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| Autores principales: | , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Hakan Gur, Journal of Sports Science & Medicine
Jun2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=129621079&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 129621079 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13032968 FYN jtl: Journal of Sports Science & Medicine issn: 13032968 maglogo: N pubinfo: dt: Jun2018 vid: 17 iid: 2 pid: 26030 pub: Hakan Gur, Journal of Sports Science & Medicine artinfo: ui: 129621079 129621079 129621079 129621079 ppf: 305 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Validity and Reliability of the PowerTap P1 Pedals Power Meter. aug: au: Pallarés, Jesús G. Lillo-Bevia, José Ramón affil: Human Performance and Sports Science Laboratory, University of Murcia, Murcia, Spain sug: subj: Exercise Test Ergometry Equipment and Supplies Cycling Reliability and Validity Human Descriptive Statistics P-Value Spearman's Rank Correlation Coefficient ab: To validate the new PowerTap P1® pedals power meter (PP1), thirty-three cyclists performed 12 randomized and counterbalanced graded exercise tests (100--500 W), at 70, 85 and 100 rev⋅min-1 cadences, in seated and standing positions. A scientific SRM system and a pair of PP1 pedals continuously recorded cadence and power output data. Significantly lower power output values were detected for the PP1 compared to the SRM for all workloads, cadences, and pedalling conditions (2--10 W, p < 0.05), except for the workloads ranged between 150 W to 350 W at 70 rev⋅min-1 in seated position (p > 0.05). Strong Spearman's correlation coefficients were found between the power output values recorded by both power meters in a seated position, independently from the cadence condition (rho ≥ 0.987), although slightly lower concordance was found for the standing position (rho = 0.927). The mean error for power output values were 1.2%, 2.7%, 3.5% for 70, 85 and 100 rev⋅min-1, respectively. Bland-Alt- man analysis revealed that PP1 pedals underestimate the power output data obtained by the SRM device in a directly proportional manner to the cyclist's cadence (from -2.4 W to -7.3 W, rho = 0.999). High absolute reliability values were detected in the PP1 pedals (150--500 W; CV = 2.3%; SEM < 1.0 W). This new portable power meter is a valid and reliable device to measure power output in cyclists and triathletes for the assessment, training and competition using their own bicycle, although caution should be exercised in the interpretation of the results due to the slight power output underestimation of the PP1 pedals when compared to the SRM system and its dependence on both pedalling cadence and cyclist's position (standing vs. seated). pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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