Myoglobin combined with oxygen. Each molecule of myoglobin can carry one molecule of oxygen. Oxymyoglobin acts as a store of oxygen in muscles (with an average of 11.2 ml of oxygen per kg of muscle mass) and is important during intermittent exercise. Oxygen is released during the work intervals and oxymyoglobin restored during the recovery periods. It is also thought to be functionally important in transporting oxygen from the blood to muscle mitochondria.
Subjects: Sports and Exercise Medicine.