The China Manned Space Agency (CMSA) released video footage on Sunday showing the Shenzhou-18 crew conducting various experiments onboard the China Space Station.

The three taikonauts, Ye Guangfu, Li Cong, and Li Guangsu, underwent a series of tests to measure their strength in space.

These tests, which included two-arm and single-arm push and pull exercises as well as rotational strength assessments, aim to understand how an astronaut's operational strength changes in a microgravity environment compared to on Earth.

By collecting data throughout their mission, researchers hope to gain insights into the effects of spaceflight on human physiology.

The crew also participated in studies focused on muscle adaptation. Using equipment like bicycles, treadmills and resistance trainers, the astronauts underwent tests that measured Achilles tendon stiffness, lower limb movement patterns and foot pressure distribution.

This data will be used to develop a model that predicts how exercise can counteract muscle loss experienced during long-duration space missions.

The Shenzhou-18 mission, launched in April, is a six-month endeavor. During their stay on the space station, the astronauts are scheduled to perform over 90 experiments across various scientific disciplines, including space material science, life science and technology.

(With input from Xinhua. Cover: Chinese astronauts gesture for a video in the China Space Station. /CMSA)