| 摘要 |
PROBLEM TO BE SOLVED: To provide an exerciser for preventing thrombosis called economy class syndrome such that a passenger seated on a small seat in an aircraft for a long time during a journey collapses immediately after arrival. SOLUTION: The exerciser for use in aircraft comprises two foot boards with their surfaces opposite to each other with an angle of about 120 degrees, the foot boards being interconnected by means of retaining arms with an interval between the boards that is about equal to the width of a shoe.
|
