Calvo Ramos, José AntonioÁlvarez Caldas, CarolinaSan Román García, José LuisGutiérrez Moizant, Ramón Alberto2021-07-212021-07-212020-11-01Calvo, J. A., Álvarez-Caldas, C., San Román, J. L. & Gutiérrez-Moizant, R. (2020). New Procedure for the Kinematic and Power Analysis of Cyclists in Indoor Training. Sensors, 20(21), 6135.1424-8220https://hdl.handle.net/10016/33121This article belongs to the Special Issue Sensor Technology for Sports Science.In this research, the performance and movements of amateur and professional cyclists were analyzed. For this, reflective markers have been used on different parts of the body of the participants in conjunction with sports cameras and a mobile power meter. The trajectories of the markers have been obtained with the software Kinovea and subsequently analyzed using error ellipses. It is demonstrated that the error ellipses help determine movement patterns in the knees, back, and hip. The covariance of the error ellipses can be indicative of the alignment and symmetry of the frontal movement of the knees. In addition, it allows verifying the alignment of the spine and the symmetry of the hip. Finally, it is shown that it is necessary to consider the uncertainty of the power devices since it considerably affects the evaluation of the cyclists’ performance. Devices with high uncertainty will demand a greater effort from the cyclist to meet the power required in the endurance test developed. The statistical magnitudes considered help to analyze power and evaluate the cyclists’ performance.20eng© 2020 by the authors.Atribución 3.0 EspañaChainrings geometryCyclist biomechanicsError elipsesPower meterCyclist performanceresearch articleIngeniería Mecánicahttps://doi.org/10.3390/s20216135open access613521Sensors20AR/0000026753