the muscles of the diaphragm and intercostals increase in strength, allowing for greater expansion of the chest cavity.
Intercostal muscles increase in strength due to being repeatedly used in exercise, so to strengthen them you will have to do endurance training. The stronger the intercostal muscles the more air you can inhale as they pull your rib cage out giving you a larger thoracic cavity.
the diaphragm and intercostal muscles increase in strength allowing for greater expansion of the chest cavity
By using your muscle you are strengthening them so all you have to do is use them to increase the strength of the muscles increase the load.
Muscles get their strength from exercise.
There are 11 pairs of intercostal muscles on each side (22 total muscles). The intercostal muscles lie between the ribs.
The diaphragm and external intercostal muscles are primarily involved in changing the thoracic volume during breathing. The diaphragm contracts during inhalation to increase thoracic volume, while the external intercostal muscles help lift and expand the rib cage.
intercostal muscle
The Phrenic Nerve-Diaphragm and the External Intercostal Nerve-External intercostal muscles
The intercostal muscles. Intercostal means "between ribs".
Inspiratory muscles such as the diaphragm and external intercostal muscles contract to increase the volume of the thorax. This action lowers the intrathoracic pressure, allowing air to rush into the lungs during inhalation.
Intercostal muscles are muscle between two ribs in our chest region. The constrict to lift ribs and increase the volume of rib cage. Increasing the volume the low air pressure attract air in lungs. So we respire by relaxing these muscles we expire the air out.
During exercise our blood circulation speed increases. It effect in amino acid and a molecule ATP which causes muscles to increase strength.