This is the inflammation of the plantar fascia ligament (the tight ligament that runs from the front part of the heel bone and fans out to the back of the metatarsal head). As the tarsal joint falls, this ligament overstretches and can even be torn apart, resulting in inflammation and pain.
Treatment
The orthotics that align the ankle bones will bring the overstretched plantar fascia ligament back to its proper position. Exercise the plantar muscle and ligament by moving toes up and down. If it’s severe, emerging the feet into hot and cold water alternately will help with more blood circulation, which will speed up the healing.
Most people should assume that they have some degree of inflammation in this ligament. They just don’t realize it until pain suddenly starts in the morning as they take their first step out of bed, or stand up after sitting for a while. While you are laying down or sitting the tarsal joint is not pressed by any weight. so it is in a more neutral position, so the connective tissues starting to heal the damaged ligament, but when you stand up again, the tarsal joint falls again tearing apart this partially healed ligament and the nerve sending signal with an “Ouch!” pain. Though the pain may subside little by little as you walk, your plantar fascia ligament still keeps overstretching and tearing apart again. When the inflammation becomes severe, walking can become very difficult.
When this healing-and-tearing-apart process keeps repeating, some scar tissue can build upon the ligament, which you might feel as bumpy knots in the arch area.
Sometimes even toddlers cry out at night holding their feet. These kids may have been born to have tight muscles. And during the day while they are walking on flat, hard floors, this plantar fascia ligament can be overstretched; this can result in inflammation of that ligament at night and can become painful.