Cardio workouts are any forms of exercise which require
full body momentum and increases heart rate.
This could mean adding a very slight sway in your back when you perform bicep curls, or using a tiny bit
of body momentum when executing barbell rows.
The kipping pull - up was at first introduced for training the athletes to use
the body momentum in alpinism and gymnastics.
Driving the arms forward and directly back rather than flailing to the sides, keeps
the body momentum moving in the direction you want to go.