Core Insights - The Shenzhou 21 mission has successfully completed 60 days in orbit with astronauts Zhang Lu, Wu Fei, and Zhang Hongzhang, who have been engaged in various scientific experiments and maintenance tasks [1] Group 1: Space Science Experiments - Ongoing research in space medicine focuses on the kinematic characteristics of astronauts during long-term missions, utilizing 3D structured light video to collect data on their operational movements [2] - Astronauts are conducting studies on muscle and joint stress during exercise, measuring parameters such as foot pressure and joint kinematics to understand the relationship between different exercise states and muscle-tendon interactions [4] - Brainwave testing projects are being executed, including studies on visual fields and cognitive training, as well as research on the effects of long-term spaceflight on brain function networks [6] Group 2: Maintenance and Health Monitoring - Regular maintenance checks have been performed on the space treadmill and life support systems, along with routine cleaning of the cabin [9] - Environmental monitoring tasks have been completed, including assessments of sound levels, wind speed, and temperature within the spacecraft [9] - Health maintenance activities include routine medical examinations, non-invasive heart function tests, and data collection using traditional Chinese medicine diagnostic tools to support long-term health monitoring of astronauts [9]