| 摘要 |
PROBLEM TO BE SOLVED: To provide an exercising tool which can prevent thrombosis, so-called economy syndrome that attacks passengers having been sitting on a narrow seat over a long time within an aircraft during the trip immediately after their arrival. SOLUTION: In the hollow molded tread exercising tool made of a resin, two tubular bodies are erected on a rectangular plate at an upper part thereof being separated to some extent and the top surfaces of the respective tubular bodies are made as treading surfaces and the surrounding sides thereof as bellows parts. An air inlet/outlet is provided at a part of the plate and a ventilation path between the tubular bodies. |
