Astronaut Josh Cassada studies how astronauts grip objects and move their arms when manipulating objects in microgravity.
iss068e054121 (Feb. 14, 2023) — NASA astronaut and Expedition 68 Flight Engineer Josh Cassada is seated in a specialized chair in the International Space Station’s Columbus laboratory module for a human research experiment. The study investigates how astronauts regulate their grip force and move their arms when manipulating objects in microgravity in response to pre-programmed stimuli as a computer and video cameras record the responses.