Research on Optimal Control of Treadmill Shock Absorption Based on Ground Reaction Force Constraint

• DOI: 10.3390/app14209509
• Publication Date: 2024-10-18T11:41:42Z
• Authors: Lang Huang; Xiancheng Wang; Zeng Wang; Xueguang Wu
• Keywords: shock absorption; Technology; QH301-705.5; T; Physics; QC1-999; Engineering (General). Civil engineering (General); optimal control; Chemistry; treadmill; GRF; TA1-2040; Biology (General); QD1-999; single-chip computer

Research shows that treadmill shock-absorbing devices can reduce the impact of ground reaction forces on knee and ankle joints during running. Most existing treadmills use fixed or passive shock absorption, meaning their systems do not actively adjust to changes in (GRFs). Methods: This study establishes a mathematical model integrating human motion biomechanics running surfaces, analyzing relationships between various parameters affecting system. Ultimately, an optimal control system is designed, utilizing microcontroller as main unit, airbags for widely used foot pressure testing Objective: The goal more effectively prevent injuries caused by excessive pressure. Compared conventional absorption systems, this design features active multilevel adjustment function with higher precision regulation. Results: experimental results demonstrate force (GRF) generated reduced up 10% compared treadmill. Conclusions: leads smaller knees due pressure, resulting better injury prevention outcomes.