Expand-A-Lung Respiratory Breathing Fitness Exerciser Trainer Resistance Adjustable Air flow Valve for Athletes Japanese-quartz Movement

Japanese-quartz Movement

Heavy duty cord

you can get up to 90 minutes of cordless power

Useful for total body grooming

Maximizes circulation

Expand-A-Lung Respiratory Breathing Fitness Exerciser Trainer Resistance Adjustable Air flow Valve for Athletes Japanese-quartz MovementProduct description The flow of air in and out of the alveoli is called ventilation and has two stages: inspiration (or inhalation) and expiration (or exhalation). To accomplish this, the whole thorax moves and changes size, due to the action of two sets of muscles: the intercostal muscles and the diaphragm. These are the muscles that are strengthened by using the Expand A Lung Breathing Resistance Exerciser. In essence, you inhale more oxygen, and