![](https://image.tmdb.org/t/p/original/rUcFNAwnTFiKtijDlDp8Ukgz48j.jpg)
![](https://image.tmdb.org/t/p/w200/sLe17AlKUO29gDmxKUs1GLkRqLr.jpg)
Your arms, shoulders, chest, and core will be toast after this upper-body-focused, "45 seconds on, 15 seconds off" Tabata-style routine.
Your arms, shoulders, chest, and core will be toast after this upper-body-focused, "45 seconds on, 15 seconds off" Tabata-style routine.