- World Athletics
- 陸上競技の国際連盟（後出 body もここでは同意）
- 反発力のある（後出 springy はばねのような、bounce-back は反発）
- 厚底の（後出 sole は靴底）
- 禁止する（後出 forbid も同意）
- 大会（後出 track competition はここでは陸上競技）
- wrap up
- carbon fiber
- take effect
- rule out
World Athletics to allow bouncy Nikes at Tokyo Games
Thick-soled Nikes worn by runners who achieved a series of long-distance victories and one world record will not be banned from international competition before the Tokyo 2020 Games wrap up, World Athletics announced on Jan. 31.
The Nikes, called Vaporfly, are built with a springy carbon fiber plate attached to a light cushion layer, resulting in a soft landing plus a strong bounce-back. The point of contention is whether they "give athletes any unfair assistance or advantage" forbidden under international track competition rules.
The body has set guidelines taking effect on April 30 that a shoe must have been available to buy for at least four months to be eligible for use in competition. It will also ban shoes with soles that are not within 40 millimeters deep.
"As we enter the Olympic year, we don't believe we can rule out shoes that have been generally available for a considerable period of time," World Athletics President Sebastian Coe said. (Compiled from AP and Mainichi reports)