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Someone asks a gym regular to explain what a suspicious-looking exercise actually does. The speaker thinks they know but wants confirmation, leading to a discussion about whether the exercise works and how to do it right.

Someone asks a gym regular to explain what a suspicious-looking exercise actually does. The speaker thinks they know but wants confirmation, leading to a discussion about whether the exercise works and how to do it right.
área puder me explicar qual que é a funcionalidade desse exercício, por gentileza. Eu acho que eu sei qual é, viu.