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It can't be emphasized enough that space vehicle designers and engineers must be aware of body restraints.
Foot loops are an effective solution in many instances. Sometimes all you need is something to hold on to.
On Skylab, many workstations employ a triangular grid floor for foot restraint.
Shoes had a mating triangle on the sole which locked into the open grid with a simple foot rotation.
Body movement required to move this piece of equipment
weighing one hundred and fifty Earth pounds is no problem when good restraints are available.
Without restraints, jobs requiring the use of hands, arms, and tools
may be difficult to execute and take longer than planned.
In a "make-do" situation, the worker restrains the equipment between his legs.
Before removing an intercom box, this Skylab crewman tapes tools to the wall to prevent their drifting away. Power tools are currently being used very effectively when the task involves removal or installation of many fasteners.
In addition to designed body restraints, there are many ways to prevent unwanted body
movement -- holding on to a fixed object, wedging a knee against a console, wrapping a leg around equipment. They all work and astronauts become adapted to finding a way to stay in a fixed position.