[RELATION BETWEEN THE BODY COMPOSITION AND THE SPORTS PRACTICE IN TEENAGERS].

Introduction: knowing precisely body composition is important in assessing the nutritional status of adolescents in order to evaluate how it affects the sport practice in this group.

Objectives: to evaluate the influence of regular physical exercise in a group of adolescents in their body composition.

Methodology: 77 male adolescents between 12 and 13 years were evaluated.

Interferometric fiber optic sensors for biomedical applications of optoacoustic imaging.

We present a non-metallic interferometric silica optical fiber ultrasonic wideband sensor for optoacoustic imaging applications. The ultrasonic sensitivity of this sensor has been characterized over the frequency range from 1 to 10 MHz. A comparative analysis has been carried out between this sensor and an array of piezoelectric transducers using optoacoustic signals generated from an optical absorbent embedded in a tissue mimicking phantom.