Test of two prediction methods for minimum and maximum values of gait kinematics and kinetics data over a range of speeds

Author(s)

Fukuchi, Claudiane A. ; Fukuchi, Reginaldo K. ; Duarte, Marcos

• Document type: Journal article
• Source: GAIT & POSTURE; v. 73, p. 269-272, SEP 2019.
• Web of Science Citations: 0

Abstract

Background: Minimum and maximum values of gait kinematics and kinetics data are commonly used to quantitatively describe a walking pattern. Research question: The purposes of this study were to determine the effect of speed on the minimum and maximum values of gait kinematics and kinetics variables and to test two prediction methods for the estimation of these minimum and maximum values at different gait speeds. Methods: An open dataset with the data of 24 healthy adults (age: 27.6 +/- 4.4 years, height 171.1 +/- 10.5 cm, body mass: 68.4 +/- 12.2 kg) walking on a treadmill at eight gait speeds was employed in this study. The minimum and maximum angles and moments of the hip, knee, and ankle joints were extracted from speed-dependent prediction curves solely for the minimum and maximum values (PEAK method) and from speed-dependent prediction curves for the entire gait cycle (CYCLE method). The overall error, computed as the rootmean-square error (RMSE), for the minimum and maximum values predicted by these two methods were compared with the experimental true values. Results: The RMSEs for the joint angles were PEAK: 3.86 +/- 1.21 degrees, CYCLE: 3.88 +/- 1.18 degrees and for the joint moments were PEAK: 0.129 +/- 0.052 Nm/kg, CYCLE: 0.131 +/- 0.052 Nm/kg. Significance: The two prediction methods tested can be used to estimate the minimum and maximum values of biomechanical gait variables at a certain speed. (AU)

• FAPESP's process: 19/06604-1 - Biomechanical modelling and clinical assessment data gathering with technological innovations towards movement restoration and sports performance for people with disabilities
• Grantee: Claudiane Arakaki Fukuchi
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 15/14810-0 - Biomechanical and functional aspects of the musculoskeletal system of runners: chronic effects of therapeutic exercise and aging
• Grantee: Isabel de Camargo Neves Sacco
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 14/13502-7 - Effect of the velocity of locomotion in gait movement pattern of young adults and elderly individuals: experimental study, computational simulation and creation of public database
• Grantee: Claudiane Arakaki Fukuchi
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)