Analysis of a lower limb prosthesis for use in cross-country skiing = Analysis of a lower limb prosthesis for use in cross-country skiing

Cross-country skiing (XC skiing) is an endurance sport that demands proficiency in various techniques tailored to different terrains and conditions. Para cross-country skiing, specifically tailored for athletes with physical impairments, requires advanced biomechanical and technological adaptations, particularly for those using prosthetic limbs. This thesis examines the performance and biomechanics of a standing para-athlete performing classical XC skiing on a treadmill, focusing on the interaction with the prosthetic equipment. The prosthetic devices tested included the Genium X3 and Genium X4 knee systems (Ottobock ©) and Taleo and Evanto prosthetic feet (Ottobock ©). Inertial Measurement Units (IMUs) were employed to estimate joint angles and detect pole hits and lifts. Additionally, data were collected using the sensors integrated into the prostheses, including a force sensor that was used to identify leg phases during skiing trials. The data collected were analyzed to extract key parameters such as hip and knee angles and to identify the phases of leg and arm movements throughout the poling cycle. Specific patterns of lower limb joint angles were identified, providing a detailed description of the biomechanics involved in XC skiing. These findings contribute to the optimization of prosthetic devices for para-athletes, enhancing both performance and comfort in competitive environments.