Evaluation of the multisensorial Actibelt platform for the assessment of the vertical jump

Abstract

[EN] The aim of this study was to assess the vertical countermovement jump (CMJ) and generate meaningul and valid parameters in order to asses jump test performance. As a basis for this analysis, video footage of captured jumps were visualized and syncronized with their corresponding acceleration signal. This was done using a proprietary syncronizing platform in order to support correlation between signal features and characteristics of the jump movement and the actibelt® multisensor wearable device to record the acceleration signal. Performance of an existing algorithm which derives the time of flight was tested with a variety of jumps, included a collected sample of 28 test subjects. Vide syncronization allowed for the observation of new features that might prove useful when assessing a subjects mobility. Though the existing algorithm failed to detect jumps of low intensities, adjustments were succesfully made in order to increase detection rate of jumps. The methods employed however might lead to overadjustment issues. The extracted parameters allowed for the distinction of jumps based on jump intensity as well as those completed by subjects above the age of 70. Assessing human mobility objectively through CMJ and accelertation signal has huge potential due to vast amount of information tat can be found within the acceleration data. In order to confirm the made observations, the functionality of the algorythm as well as the validity of the generated parameters, further studies would be required.

[ES] Estudio del salto vertical a través del plataforma multisensorial Actibelt para extraer posibles parámetros que permitirán evaluar el estado físico de una persona.