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The vibrations undergone by men are a well-known and widely studied risk factor in the industrial world. They are transmitted to the whole body or the upper limbs and they are measured, and limited, according to international standards. Disorders resulting from exposure to vibration are varied in nature: osteoarticular, muscular, vascular, and neurological. In this context, an European Directive 2002/44/EC to the protection of workers exposed to vibration, precises thresholds for vibration exposures and defines the procedure for risk prevention. Nevertheless, the effect of vibration is little studied in sports despite the ubiquity of these. Vibration can induce discomfort, degrading performance or causing musculoskeletal disorders. This paper makes an overview of the studies involving the vibrations during cycling. At first, this paper will summarize the different standards and guidelines relating vibration in humans, which present a guide for the measurement and evaluation of the vibration and exposure limits. Secondly, this paper presents a state of the art vibration effects: (i) the physiological and pathological disorders in athletes, (ii) and the performance. A third part will be devoted to the synthesis of numerical studies that represent the biodynamic response and help to predict the effects of human body vibration. Finally, new research and innovations will be discussed based on studies in other sports.

Vibrations in cycling produced by road irregularities could cause health problems and affect the cyclist’s comfort and performance. Therefore researchers and manufacturers focus their efforts to reduce the vibrations., Las vibraciones en el ciclismo producidas por las irregularidades de la carretera podrían causar problemas de salud y afectar a la comodidad y el rendimiento del ciclista. Por ello, los investigadores y los fabricantes centran sus esfuerzos en reducir las vibraciones., 1. GRESPI, Moulin de la Housse, Université de Reims Champagne Ardenne, Reims, France 2. IN’BO, ZA Les Bouleaux, Les Voivres, France 3. Escuela Colombiana de Ingeniería Julio Garavito, Bogotá D.C., Colombia 4. Montclair State University, Upper Montclair, New Jersey, USA 5. EPF, 3 bis rue Lakanal, Sceaux, France 6. Arts et Métiers ParisTech, MSMP / EA7350, Châlons-en-Champagne, France

This paper proposes to highlight two aspects of denoising in vibration analysis. The first aspect aims to reveal the singularities, and the second eliminates the noise in order to keep the useful signal. These two aspects are the cause of the surjection of denoising, especially due to the choice of the performance criteria. This paper highlights the use of denoising through these aspects, and then proposes a performance criterion suitable for vibration analysis as part of a noise suppression, to apply a processing method. This paper provides a reflection on the use of discrete wavelet transform through the various parameters which are used during processing.

In the world of cycling, vibrations generate back (Hill et al. 2009) and hand–arm system injuries (Schwellnus and Derman 2005) resulting from the trauma of bones, causing work disability. At the sa...

Exposure to vibrations can cause discomfort. It can negatively affect performances and is risky for health and for the safety of humans. In particular, the hand–arm system may suffer from vascular ...