Conception d’un système d’évaluation à distance de la dépense énergétique liée à une activité physique : Application à la supervision de la dépense énergétique de patients en post - AVC

Abstract : This thesis describes the design of a wireless device, communicating and estimating the energy expenditure (EE) related to physical activity of patients with low levels of physical activity (post stroke) in a sensitive environment such as hospitals by combining reliability and safety. The necessity of a new device is based on the results of preliminary studies and tests of commercially available devices (for the same use) based on accelerometers. To limit the impact of radio frequencies, we use optical technology with a wireless transmitter worn by a mobile patient (existing platform combined with an accelerometer and a system of transmission with infrared diode) and receiver fixed on the ceiling and connected via Ethernet to a remote computer for data analysis. The outage probability of a mobile wireless diffuse optical transmission was theoretically established by considering a low speed and a high quality of service in the conventional medical area. Measuring the number of frame losses during communication validates the theoretical performance of the optical wireless technology and proves the reliability of this type of mobile infrared transmission according to the number of receivers. The calculation of the EE has been performed on a pre-calibration from two people by comparing the results with those given by calorimetry and those given by a commercial device. We optimized the calibration by performing a test protocol with a larger sample of people and with a sample of eleven stroke people to validate the prototype.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-01382707
Contributor : Abes Star <>
Submitted on : Monday, October 17, 2016 - 2:20:37 PM
Last modification on : Thursday, May 17, 2018 - 4:14:32 AM

File

2015LIMO0141.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01382707, version 1

Collections

Citation

Pascal Toumieux. Conception d’un système d’évaluation à distance de la dépense énergétique liée à une activité physique : Application à la supervision de la dépense énergétique de patients en post - AVC. Optique / photonique. Université de Limoges, 2015. Français. ⟨NNT : 2015LIMO0141⟩. ⟨tel-01382707⟩

Share

Metrics

Record views

260

Files downloads

763