Kinematic movement analysis of change from quadrupedalism to bipedalism

Abstract

Objective: To assess the joint’s kinematics of the trunk, hip, knee and ankle in the sagittal plane during the postures changes from quadrupedalism to bipedalism. Methods: Twelve volunteers participated in this study: six female and six males, aged 20 to 28 years. All volunteers performed three movements, starting with the right and other with the left. All were submitted to two-dimensional computerized movement analysis. Rresults: After statistical analysis, no statistically significant difference was found inter and intravolunteers in the two groups tested. Cconclusions: After examining the kinematic angle, it was possible to see that there is no single pattern of movement during the postures’ changes from quadrupedalism to bipedalism in healthy young adults. There were strategies for development and execution of the movement that showed some resemblance variability intravolunteers. However, intervolunteers there were no similarity between two groups, which enabled us to distinguish specific strategies to accomplish the tasks.

Keywords

• Posture
• Biomechanics
• Joints
• Rehabilitation