Chest breathing is associated with anxiety, neck stiffness and even low back pain. Teach your diaphragm to work correctly with this simple (yet not always easy) exercise.
The kneeling pushup plus is a starting exercise for the serratus anterior muscle. This muscle is important as it rotates the shoulder blade upward during arm raising and also keeps the medial border of the shoulder blade secure against the rib cage.
Pec minor originates from the top of the scapular at the coracoid process and inserts into ribs 3, 4, and 5. When this muscle is short it can contribute to rounded shoulders and shoulder issues such as impingement.
This stretch is aimed at stretching out the hip flexor muscles (predominately psoas and iliacus). These muscles can become tight with prolonged sitting and can be a factor in low back stiffness.