Improved Global Navigation Satellite System filtering methods for the mobile six-minute walk test

Abstract Heart failure (HF) is a chronic disease with high hospitalizations rates and increased mortality. The six-minute walk test (6MWT) standardized method to assess the functional health of HF patients by measuring distance walked in six minutes [1]. improved 6MWT new filter algorithms, based on development smartphone application [9], can be used everywhere good global navigation satellite system (GNSS) signal. This paper tests multiple filtering approaches reduce measured error application.We were able decrease average relative from 4.5% 2.0%. Additionally, number experiments over our chosen clinically significant difference 5% reduced 90%. Keeping these results mind, considered acceptable.