Rajio taisō were introduced to Japan in 1928 as a commemoration of the coronation of Emperor Hirohito. The idea for radio broadcast came from the US, where during the 1920s the Metropolitan Life Insurance Co. sponsored 15-minute radio calisthenics in
Japanese Radio Calisthenics
![Japanese Radio Calisthenics Japanese Radio Calisthenics](https://www.new-medical.org/wp-content/uploads/2022/05/22831459_m-750x350.jpg)