RT Conference Proceedings
T1 Studying upper-limb kinematics using inertial sensors
A1 Roldán-Jiménez, Cristina
A1 Cuesta-Vargas, Antonio
K1 Electrofisiología
AB AIM: The aim of this study was to analyze scapulohumeral rhythm through nine physical properties thatcorrespond to angular mobility, angular velocity, and acceleration in the three axes of space, obtained byinertial sensors.METHODS: This cross-sectional study recruited healthy young adult subjects. Descriptive andanthropometric independent variables related to age, gender, weight, size, and BMI were included. Ninephysical properties were included corresponding to three dependent variables for each of three special axes:mobility angle (degrees), angular speed (degrees/second), and lineal acceleration (meters/seconds2), whichwere obtained thought the inertial measurement sensors with four inertial sensors (InertiaCube3™Intersense Inc., Billerica, Massachusetts). Inertial sensors were placed in the right half of the body of eachsubject located in the middle third of the humerus slightly posterior, in the middle third of the upper spine ofthe scapula, in the flat part of the sternum, and the distal surface of the ulna and radius.RESULTS: Descriptive graphics of analytical tasks performed were obtained (figure 1). The main differencein mobility between the scapula and humerus was found in pitch axis for abduction ( = 107.6°, SD = 9.3°)and flexion ( = 113.1°, SD = 9.3°).CONCLUSION: This study shows how much each body segment contributes to upper-limb motion, andallows us to obtain grades of mobility provided by the scapula. Also, this study identified movementpatterns, and supports inertial sensors as a useful device to analyze upper-limb kinematics. However, furtherstudies with subjects with shoulder pathology should be carried out.
YR 2014
FD 2014-10-22
LK http://hdl.handle.net/10630/8269
UL http://hdl.handle.net/10630/8269
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026