Reliability and validity of gait analysis by android-based smartphone.

Smartphones are very common devices in daily life that have a built-in tri-axial accelerometer. Similar to previously developed accelerometers, smartphones can be used to assess gait patterns. However, few gait analyses have been performed using smartphones, and their reliability and validity have not been evaluated yet.

Objective assessment of abnormal gait in patients with rheumatoid arthritis using a smartphone.

A disturbance in gait pattern is a serious problem in patients with rheumatoid arthritis (RA). The aim of the present study was to examine the utility of the smartphone gait analysis application in patients with RA. The smartphone gait analysis application was used to assess 39 patients with RA (age 65.

[Increased physical and intellectual activity and changes in cognitive function in elderly dwellers: lessons from a community-based dementia prevention trial in Suginami Ward, Tokyo].

Purpose: This study was conducted to examine the effect of increased physical and/or intellectual activities on changes in cognitive function in elderly dwellers.

Methods: The subjects comprised 61 residents aged 65 or over living in Suginami Ward, Tokyo, who took part in a community-based dementia prevention class aimed at increasing both physical and intellectual activities. Physical activity was evaluated by the number of daily steps using a pedometer.