This paper describes ongoing work into a portable mobility aid, worn by the visually impaired. The system uses stereo vision and sonar sensors for obstacle avoidance and recognition of kerbs. Because the device is carried, the user is given freedom of movement over kerbs, stairs and rough ground, not traversable with a wheeled aid. Motion of the sensor due to the walking action is measured usin...

results there was a significant difference in the self-esteem (p = 0.003), life satisfaction (p = 0.001), efficiency (p = 0.00), positive mood (p = 0.00), mental health (p = 0.001) and happiness (p = 0.001) among elderly women in the case group before and after a regular six-week walking program. conclusions according to the results, walking increases the happiness and mental health of elderly ...

Ground plane perception is of vital importance to human mobility. In order to develop a stereo-based mobility aid for the partially sighted, we model the ground plane based on disparity and analyze its uncertainty. Because the mobility aid is to be mounted on a person, the cameras will be moving around while the person is walking. By calibrating the ground plane at each frame, we show that a pa...

BACKGROUND The development of portable liquid oxygen systems, capable of delivering high flow rate oxygen for long periods, justifies reassessment of the value of supplemental oxygen to aid exercise tolerance in patients with chronic respiratory insufficiency. The type of exercise test and the low oxygen flow rates previously used may account for the variable and often poor responses to supplem...

this study investigated the relationship between noncontrolled and self-motivated brisk walking with physical and mental health of women living in west tehran, iran. the persian version of short form health survey (sf-36) applied for data collection. researchers referred to three public parks to recruit volunteer women aged 35-55 years old. participants were randomly selected and divided into a...