Why aren't the comments going down...?
아니 다리는 왜 같이 올라갈려고 하는데…
Just following along roughly is enough to stimulate the biceps, and I highly recommend it for those who have wrist pain with dumbbells.
It's difficult, so I'll just use dumbbells.
It says to bend and straighten the legs in the breathing method, but it seems different from the video.