Hallmarks of a functional medicine approach include: 1  Patient-centered care. The focus of functional medicine is on patient-centered care, promoting health as a positive vitality, beyond just the absence of disease.  An integrative, science-based healthcare approach. Functional medicine practitioners look âupstreamâ to consider the complex web of interactions in the patientâs history, physiology, and lifestyle that can lead to illness.
By Mayo Clinic Staff. Achilles tendinitis is caused by repetitive or intense strain on the Achilles tendon, the band of tissue that connects your calf muscles to your heel bone. This tendon is used when you walk, run, jump or push up on your toes.
Inflammation or degeneration of the Achilles tendon commonly causes calf muscle pain. The Achilles tendon is approximately six inches long, connecting the calf muscles to the heel. The Achilles is extremely strong but not very flexible, making it prone to damage, especially if the calf muscles are weak and tight.