Proper breathing helps to concentrate and make the movements more rhythmic.
There are two common breathing methods for dumbbell fitness:
1. Breathe naturally, and keep a natural and unconscious breathing rhythm when exercising. Natural breathing is mostly used for lightweight and slow-motion exercises.
2. cis-breathing, breathing in when the muscles contract hard, and breathing out when the muscles contract. This is the most commonly used breathing method for fitness, and it is also recognized by most fitness enthusiasts.