AQA GCSE PE: Mechanics of Breathing

Physical education teaching is our speciality! This video will teach you how the diaphragm and intercostal muscles cause us to breath in and out at rest and how additional muscles cause us to breathe in and out faster and deeper during exercise for AQA GCSE PE Paper 1. James teaches you all about the changes to tidal volume caused by the diaphragm, intercostal muscles, sternocleidomastoid, pectorals and abdominals contracting and relaxing during both rest and exercise.

Covered in this video:
Inhalation at rest.
Contraction of the diaphragm.
Contraction of the intercostal muscles.
Exhalation at rest.
Relaxation of the diaphragm.
Relaxation of the intercostal muscles.
Inhalation during exercise.
Stronger contraction of the diaphragm.
Stronger contraction of the intercostal muscles.
Contraction of the sternocleidomastoid.
Contraction of the pectorals.
Exhalation during exercise.
Relaxation of the diaphragm.
Relaxation of the intercostal muscles.
Relaxation of the sternocleidomastoid.
Relaxation of the pectorals.
Contraction of the abdominals.
Changes in internal area of the chest cavity.
Changes to air pressure in the chest cavity.
Mechanics of breathing.

James is a PE teacher of 17 years' experience and is the most watched PE teacher in the world having recorded over 5.5k videos all about PE. James specialises in the teaching of GCSEs, A-levels, BTEC and other PE-related qualifications.