BaSA – Basic Step Activities

Hardware Equipment and Sensor Setup

Two SHIMMER (Shimmer Research, Dublin, Ireland) sensors were used for data acquisition. Each sensor node was equipped with a triaxial accelerometer and a triaxial gyroscope. Data were sampled with 200 Hz and were stored on SD card.

Study Design

The Basic Step Activities database consists of data from 15 subjects (8 female and 7 male, age 23 ± 2 years, height 178 ± 12.5 cm, weight 75.0 ± 16.5 kg, mean ± standard deviation (SD)) that performed 7 daily life activities. All subjects gave written informed consent.

The 7 activities were:

  • Sitting
  • Lying
  • Standing
  • Walking outside
  • Jogging outside
  • Ascending stairs
  • Descending stairs

These activities were chosen according to their different Metabolic Equivalent of Task (MET) values.


Please cite this publication when using BaSA:

Leutheuser, H., Doelfel, S., Schuldhaus, D., Reinfelder, S., Eskofier, B. M. (2014) Performance Comparison of Two Step Segmentation Algorithms using Different Step Activities, in Proc: 11th International Conference on Wearable and Implantable Body Sensor Networks (BSN), Zürich, Switzerland, June 16 – 19, pp. 143-148.


Download link currently not available, please contact the author: heike.leutheuser (at)