Impact of walking states, self-reported daily walking amount and age on the gait of older adults measured with a smart-phone app: a pilot study.

The walking state, self-reported daily walking amount, and age have a significant effect on the gait quality of older adults. Walking with pigmented sunglasses can be used as a training intervention to improve gait performance. Older adult people who walk less than 1 km/day have worse gait quality compared with their counterparts.