Validity and reproducibility of the Powertap P1 power meter when compared with SRM device
Journal Title: Journal of Science and Cycling - Year 2016, Vol 5, Issue 2
Abstract
The use of power meters allows the assessment of cycling performance according to the record power profile [1]. Some power meters allow the measurement of power output (PO) in the pedals such as Look Keo Power (Look, Cedex, France) [2] and Garmin Vector (Olathe, USA) [3]. However, the results about these two systems [2, 3] should be treated with some caution given the presence of mean differences between them and the SRM (Schoberer Rad Messtechnich, Julich, Germany) who is the most widespread device due to his high validity, sensibility and reproducibility. The usefulness of the Look Keo Power pedals may be limited by the poorer agreement of the data compared with those of the SRM [2]. Also, it has been shown that the Garmin Vectors pedals 1) under estimated the PO during sprints with low gear ratio and 2) does not have acceptable sensitivity. Powertap P1 (PP1, CycleOps, Madison, USA) is a newer power meter located in the pedals for which the usage characteristics have not been analysed. The aim of this study was to assess the validity and reproducibility of the PP1 power meter during laboratory cycling tests compared with SRM device.
Authors and Affiliations
M. Czajkowski| EA4660, C3S Health - Sport Department, Sports University, Besancon, France, A. Bouillod| EA4660, C3S Health - Sport Department, Sports University, Besancon, France.French Cycling Federation, Saint Quentin en Yvelines, France, A. Dauriannes| EA4660, C3S Health - Sport Department, Sports University, Besancon, France, G. Soto-Romero| ISIFC, Université de Franche-Comté, France; 5 LAAS-CNRS, Toulouse, France, F. Grappe| Professional Cycling Team FDJ, Moussy le Vieux, France
Keywords
Related Articles
- EP ID EP2962
- DOI -
- Views 398
- Downloads 20
Preliminary results: A comparison of specific imu-based calibrations for cycling vs. conventional methods.
Recent technological advances in MEMS allow considering the biomechanical evaluation of cyclists outside the laboratory (road, track cycling, etc). Indeed, optoelectronical motion capture in cycling is commonely used in...
Reliability and validity of PowerCal power distribution during cycling time trial
The PowerCal device (Cyclops, Madison, USA) is a heart rate (HR) strap that estimates power output (PO) using an algorithm computed from the HR response recorded during exercise. The device is a low-cost method (~ 99 US...
Modelling of critical power from road data
Background: Performance tests are an integral part of evaluating competitive cyclists. Despite all technological and physiological advances, limited research has been performed addressing the translation of standardized,...
Multisensor monitoring cycle ergometer
Cycling ergometers provide a repeatable and controllable test setup to observe the effect that the mechanical (e.g. frame geometry), biomechanical (e.g. position on the bicycle) or biophysical (e.g. effect of rider posit...
The effect of bicycle seat-tube angle on muscle activation of lower extremity
Purpose: This study recruited bicycle enthusiasts and investigated lower extremity muscle activation at various seat-tube angles. Methods: Twenty healthy participants (10 males and 10 females) with right dominant leg wer...