Publication

Front-Crawl Propulsive Phase Detection Using Inertial Sensors

Kamiar Aminian, Grégoire Millet, Farzin Dadashi, Florent Crettenand
2011
Conference Papers

Abstract

Front crawl is an alternating swimming stroke technique in which different phases of arm movement induce changes in acceleration of limbs and body. This study proposes a new approach to use inertial body worn sensors to estimate main temporal phases of front crawl. Distinctive features in kinematic signals are used to detect the temporal phases.These temporal phases are key information sources of qualitative and quantitative evaluation of swimming coordination, which have been assessed previously by video analysis. The present method has been evaluated upon a wide range of coordination and showed a difference of 4.9% with video based system. The results are in line with video analysis inter-operator variability yet offering an easy-to-use system for trainers.

Official source

https://infoscience.epfl.ch/entities/publication/cefabf3c-243c-4451-a015-b4bbab98385a

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Kamiar Aminian, Grégoire Millet, Farzin Dadashi, Florent Crettenand
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cefabf3c-243c-4451-a015-b4bbab98385a

About this result

Related concepts (26)

Information theory

Information theory is the mathematical study of the quantification, storage, and communication of information. The field was originally established by the works of Harry Nyquist and Ralph Hartley, in the 1920s, and Claude Shannon in the 1940s. The field, in applied mathematics, is at the intersection of probability theory, statistics, computer science, statistical mechanics, information engineering, and electrical engineering. A key measure in information theory is entropy.

Key (cryptography)

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic algorithm, can encode or decode cryptographic data. Based on the used method, the key can be different sizes and varieties, but in all cases, the strength of the encryption relies on the security of the key being maintained. A key's security strength is dependent on its algorithm, the size of the key, the generation of the key, and the process of key exchange.

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