Presented are a recording apparatus, a mobile terminal, an analysis apparatus, a program, and a storage medium that can detect a slight tendency toward change in step length and walking speed with high accuracy. The recording apparatus includes: a mobile terminal； and an analysis apparatus, wherein the mobile terminal includes a positioning device and a sensor, acquires position information of the mobile terminal from the positioning device, acquires, from the sensor, measurement information indicating whether a walker is walking straight on a flat, extracts position information of a case where the walker is walking straight on the flat from among pieces of the position information, on the basis of the measurement information, and calculates a walking speed and a step length of the walker, on the basis of the extracted position information, and the analysis apparatus notifies the walker of changes in walking speed and step length.
