Trademark 3840-480

IMU monitors weightlifting

    Recently, a team of researchers from Canada conducted a groundbreaking study on the prevalence of lower back pain in weightlifting due to improper weightlifting maneuvers. The team utilized wearable Inertial Measurement Unit (IMU) technology to monitor and assess the forces on lower back muscles and spinal joints during weightlifting in a controlled laboratory environment in real time. This research breaks new ground and aims to bring more accurate assessment tools to the field of occupational health.


The IMU device and surface EMG sensors were used to synchronously record the changes in body posture and muscle movements during weightlifting in 10 healthy adults, and the data recorded by the IMU were fused with the motion information captured by a video camera in real time, and the musculoskeletal model constructed by using the OpenSim software was used to accurately estimate the forces in the lower back muscles and the L5-S1 joints. The results of the study showed that the muscle forces estimated by the IMU were highly consistent with those recorded by the EMG, and the difference between the two data was within an acceptable range.       

This study demonstrates that the integration of wearable IMU technology with biomechanical modeling provides a novel and effective means of lower back pain risk assessment in occupational settings. It not only improves the convenience and accuracy of the assessment, but also lays the foundation for the development of a practical on-site assessment tool, which is expected to promote health management and efficiency in the workplace in the future.