Monitoring of garment pressure and physical activity level for pressure garment therapy using wearable sensors

Pao Yue-kong Library Electronic Theses Database

Monitoring of garment pressure and physical activity level for pressure garment therapy using wearable sensors

 

Author: Tang, Jing
Title: Monitoring of garment pressure and physical activity level for pressure garment therapy using wearable sensors
Degree: M.Sc.
Year: 2013
Subject: Pressure suits -- Therapeutic use.
Hong Kong Polytechnic University -- Dissertations
Department: Interdisciplinary Division of Biomedical Engineering
Pages: ix, 59 leaves : ill. (chiefly col.) ; 30 cm.
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2558377
URI: http://theses.lib.polyu.edu.hk/handle/200/6871
Abstract: Hypertrophic scars (HS) formed by serious burn wounds may result in disfigurement and changes in movement ability to the patients, which can be treated effectively by using pressure garment. Many previous studies confirmed that pressure garment could decrease HS as well as reduce hardness and redness of HS, and pressure around 25 mmHg had better performance than smaller pressure values. However, the applied pressure will decrease during patients' physical activities every day and the utilization time of the garment is reduced, which may decrease the effect of pressure garment. Therefore, this study aimed to detect the static garment pressure for informing patients of garment trimming when pressure values of garment were ineffective. So a pressure measuring system to assess the static pressure under pressure garment in long-term usage was developed successfully. Meanwhile, an accelerometer-based mobile sensor was worn on subject's waist to figure out the relationship between the garment pressure and patients' physical activity level. The study lasted for 12 days and 6-hour pressure data were recorded every day. The results showed that there was a strong linear correlation (R square was 0.7331) between garment pressure and physical activity level, which meant that the effectiveness of garment would reduce because of not only time but also the level of exercise. Finally, this study can be good for the patients with HS and vigorous sportsmen who preferred pressure garment for a long time use to monitor their pressure conveniently.

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