If the movie does not
automatically play, click
Foot and hand restraints are essential. During the early Gemini flight, Americans first walked in space and learned immediately that just installing foot restraints isn't sufficient.
In addition, they must be positioned so it's possible to reach the work.
The crewman detaches himself from the foot restraints to better reach the work area but must use one hand to hold himself in position.
Without well-designed, properly positioned body restraints, an astronaut is ineffective when trying to accomplish a work assignment during an EVA.
The Manipulator Foot Restraint (MFR), used by shuttle astronauts, can be
positioned by the Remote Manipulator System referred to as the "robot
arm". It is an effective solution to mobility and restraint problems.
However, the RMS is not installed for all
Shuttle flights. Here, Shuttle astronauts use a more basic system. A cable serves as the sliding attachment to tether their suits. The space suit used by
Shuttle astronauts does not require an umbilical or hose attachment to the spacecraft, as did the suits in earlier space programs.
Provision must be made to attach or restrain equipment and tools. If this has not been
done, hardware items could be lost as was a thermal glove and a checklist. The
Shuttle foot restraint is grabbed just in time. The lesson is clear. The exterior of long life space vehicles must include generous provisions for personnel tether and equipment attachment points.